+++ /dev/null
-/*
- * Geeqie
- * (C) 2006 John Ellis
- * Copyright (C) 2008 - 2009 The Geeqie Team
- *
- * Author: John Ellis
- *
- * This software is released under the GNU General Public License (GNU GPL).
- * Please read the included file COPYING for more information.
- * This software comes with no warranty of any kind, use at your own risk!
- */
-
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <math.h>
-
-#include "main.h"
-#include "pixbuf-renderer.h"
-
-#include "intl.h"
-#include "layout.h"
-
-#include <gtk/gtk.h>
-
-
-/* comment this out if not using this from within Geeqie
- * defining GQ_BUILD does these things:
- * - Sets the shift-click scroller pixbuf to a nice icon instead of a black box
- */
-#define GQ_BUILD 1
-
-#ifdef GQ_BUILD
-#include "main.h"
-#include "pixbuf_util.h"
-#include "exif.h"
-#else
-typedef enum {
- EXIF_ORIENTATION_UNKNOWN = 0,
- EXIF_ORIENTATION_TOP_LEFT = 1,
- EXIF_ORIENTATION_TOP_RIGHT = 2,
- EXIF_ORIENTATION_BOTTOM_RIGHT = 3,
- EXIF_ORIENTATION_BOTTOM_LEFT = 4,
- EXIF_ORIENTATION_LEFT_TOP = 5,
- EXIF_ORIENTATION_RIGHT_TOP = 6,
- EXIF_ORIENTATION_RIGHT_BOTTOM = 7,
- EXIF_ORIENTATION_LEFT_BOTTOM = 8
-} ExifOrientationType;
-#endif
-
-
-/* size to use when breaking up image pane for rendering */
-#define PR_TILE_SIZE 128
-
-/* default size of tile cache (mb) */
-#define PR_CACHE_SIZE_DEFAULT 8
-
-/* default min and max zoom */
-#define PR_ZOOM_MIN -32.0
-#define PR_ZOOM_MAX 32.0
-
-/* distance to drag mouse to disable image flip */
-#define PR_DRAG_SCROLL_THRESHHOLD 4
-
-/* increase pan rate when holding down shift */
-#define PR_PAN_SHIFT_MULTIPLIER 6
-
-/* scroller config */
-#define PR_SCROLLER_UPDATES_PER_SEC 30
-#define PR_SCROLLER_DEAD_ZONE 6
-
-/* alpha channel checkerboard background (same as gimp) */
-#define PR_ALPHA_CHECK1 0x00999999
-#define PR_ALPHA_CHECK2 0x00666666
-#define PR_ALPHA_CHECK_SIZE 16
-
-/* when scaling image to below this size, use nearest pixel for scaling
- * (below about 4, the other scale types become slow generating their conversion tables)
- */
-#define PR_MIN_SCALE_SIZE 8
-
-/* round A up/down to integer count of B */
-#define ROUND_UP(A,B) ((gint)(((A)+(B)-1)/(B))*(B))
-#define ROUND_DOWN(A,B) ((gint)(((A))/(B))*(B))
-
-typedef enum {
- TILE_RENDER_NONE = 0, /* do nothing */
- TILE_RENDER_AREA, /* render an area of the tile */
- TILE_RENDER_ALL /* render the whole tile */
-} ImageTileRenderType;
-
-typedef struct _ImageTile ImageTile;
-typedef struct _QueueData QueueData;
-
-struct _ImageTile
-{
- GdkPixmap *pixmap; /* off screen buffer */
- GdkPixbuf *pixbuf; /* pixbuf area for zooming */
- gint x; /* x offset into image */
- gint y; /* y offset into image */
- gint w; /* width that is visible (may be less if at edge of image) */
- gint h; /* height '' */
-
- gboolean blank;
-
-/* render_todo: (explanation)
- NONE do nothing
- AREA render area of tile, usually only used when loading an image
- note: will jump to an ALL if render_done is not ALL.
- ALL render entire tile, if never done before w/ ALL, for expose events *only*
-*/
-
- ImageTileRenderType render_todo; /* what to do (see above) */
- ImageTileRenderType render_done; /* highest that has been done before on tile */
-
- QueueData *qd;
- QueueData *qd2;
-
- guint size; /* est. memory used by pixmap and pixbuf */
-};
-
-struct _QueueData
-{
- ImageTile *it;
- gint x;
- gint y;
- gint w;
- gint h;
- gboolean new_data;
-};
-
-typedef struct _SourceTile SourceTile;
-struct _SourceTile
-{
- gint x;
- gint y;
- GdkPixbuf *pixbuf;
- gboolean blank;
-};
-
-typedef struct _OverlayData OverlayData;
-struct _OverlayData
-{
- gint id;
-
- GdkPixbuf *pixbuf;
- GdkWindow *window;
-
- gint x;
- gint y;
-
- OverlayRendererFlags flags;
-};
-
-enum {
- SIGNAL_ZOOM = 0,
- SIGNAL_CLICKED,
- SIGNAL_SCROLL_NOTIFY,
- SIGNAL_RENDER_COMPLETE,
- SIGNAL_DRAG,
- SIGNAL_UPDATE_PIXEL,
- SIGNAL_COUNT
-};
-
-enum {
- PROP_0,
- PROP_ZOOM_MIN,
- PROP_ZOOM_MAX,
- PROP_ZOOM_QUALITY,
- PROP_ZOOM_2PASS,
- PROP_ZOOM_EXPAND,
- PROP_DITHER_QUALITY,
- PROP_SCROLL_RESET,
- PROP_DELAY_FLIP,
- PROP_LOADING,
- PROP_COMPLETE,
- PROP_CACHE_SIZE_DISPLAY,
- PROP_CACHE_SIZE_TILES,
- PROP_WINDOW_FIT,
- PROP_WINDOW_LIMIT,
- PROP_WINDOW_LIMIT_VALUE,
- PROP_AUTOFIT_LIMIT,
- PROP_AUTOFIT_LIMIT_VALUE
-};
-
-typedef enum {
- PR_ZOOM_NONE = 0,
- PR_ZOOM_FORCE = 1 << 0,
- PR_ZOOM_NEW = 1 << 1,
- PR_ZOOM_CENTER = 1 << 2,
- PR_ZOOM_INVALIDATE = 1 << 3,
- PR_ZOOM_LAZY = 1 << 4 /* wait with redraw for pixbuf_renderer_area_changed */
-} PrZoomFlags;
-
-static guint signals[SIGNAL_COUNT] = { 0 };
-static GtkEventBoxClass *parent_class = NULL;
-
-
-
-static void pixbuf_renderer_class_init(PixbufRendererClass *class);
-static void pixbuf_renderer_init(PixbufRenderer *pr);
-static void pixbuf_renderer_finalize(GObject *object);
-static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
- const GValue *value, GParamSpec *pspec);
-static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
- GValue *value, GParamSpec *pspec);
-static gboolean pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event);
-
-static void pr_render_complete_signal(PixbufRenderer *pr);
-
-static void pr_overlay_list_clear(PixbufRenderer *pr);
-static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start);
-static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
-
-
-static void pr_source_tile_free_all(PixbufRenderer *pr);
-static void pr_tile_free_all(PixbufRenderer *pr);
-static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h);
-static gboolean pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it);
-static void pr_queue_clear(PixbufRenderer *pr);
-static void pr_queue_merge(QueueData *parent, QueueData *qd);
-static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
- gint clamp, ImageTileRenderType render, gboolean new_data, gboolean only_existing);
-
-static void pr_redraw(PixbufRenderer *pr, gboolean new_data);
-
-static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
- PrZoomFlags flags, gint px, gint py);
-
-static void pr_signals_connect(PixbufRenderer *pr);
-static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
-static void pr_hierarchy_changed_cb(GtkWidget *widget, GtkWidget *previous_toplevel, gpointer data);
-static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area);
-static gint pr_queue_draw_idle_cb(gpointer data);
-
-
-/*
- *-------------------------------------------------------------------
- * Pixbuf Renderer object
- *-------------------------------------------------------------------
- */
-
-GType pixbuf_renderer_get_type(void)
-{
- static GType pixbuf_renderer_type = 0;
-
- if (!pixbuf_renderer_type)
- {
- static const GTypeInfo pixbuf_renderer_info =
- {
- sizeof(PixbufRendererClass), /* class_size */
- NULL, /* base_init */
- NULL, /* base_finalize */
- (GClassInitFunc)pixbuf_renderer_class_init,
- NULL, /* class_finalize */
- NULL, /* class_data */
- sizeof(PixbufRenderer), /* instance_size */
- 0, /* n_preallocs */
- (GInstanceInitFunc)pixbuf_renderer_init, /* instance_init */
- NULL, /* value_table */
- };
-
- pixbuf_renderer_type = g_type_register_static(GTK_TYPE_EVENT_BOX, "PixbufRenderer",
- &pixbuf_renderer_info, 0);
- }
-
- return pixbuf_renderer_type;
-}
-
-static void pixbuf_renderer_class_init(PixbufRendererClass *class)
-{
- GObjectClass *gobject_class = G_OBJECT_CLASS(class);
- GtkWidgetClass *widget_class = GTK_WIDGET_CLASS(class);
-
- parent_class = g_type_class_peek_parent(class);
-
- gobject_class->set_property = pixbuf_renderer_set_property;
- gobject_class->get_property = pixbuf_renderer_get_property;
-
- gobject_class->finalize = pixbuf_renderer_finalize;
-
- widget_class->expose_event = pixbuf_renderer_expose;
-
- g_object_class_install_property(gobject_class,
- PROP_ZOOM_MIN,
- g_param_spec_double("zoom_min",
- "Zoom minimum",
- NULL,
- -1000.0,
- 1000.0,
- PR_ZOOM_MIN,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_ZOOM_MAX,
- g_param_spec_double("zoom_max",
- "Zoom maximum",
- NULL,
- -1000.0,
- 1000.0,
- PR_ZOOM_MIN,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_ZOOM_QUALITY,
- g_param_spec_uint("zoom_quality",
- "Zoom quality",
- NULL,
- GDK_INTERP_NEAREST,
- GDK_INTERP_HYPER,
- GDK_INTERP_BILINEAR,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_ZOOM_2PASS,
- g_param_spec_boolean("zoom_2pass",
- "2 pass zoom",
- NULL,
- TRUE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_ZOOM_EXPAND,
- g_param_spec_boolean("zoom_expand",
- "Expand image in autozoom.",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_DITHER_QUALITY,
- g_param_spec_uint("dither_quality",
- "Dither quality",
- NULL,
- GDK_RGB_DITHER_NONE,
- GDK_RGB_DITHER_MAX,
- GDK_RGB_DITHER_NORMAL,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_SCROLL_RESET,
- g_param_spec_uint("scroll_reset",
- "New image scroll reset",
- NULL,
- PR_SCROLL_RESET_TOPLEFT,
- PR_SCROLL_RESET_NOCHANGE,
- PR_SCROLL_RESET_TOPLEFT,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_DELAY_FLIP,
- g_param_spec_boolean("delay_flip",
- "Delay image update",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_LOADING,
- g_param_spec_boolean("loading",
- "Image actively loading",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_COMPLETE,
- g_param_spec_boolean("complete",
- "Image rendering complete",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_CACHE_SIZE_DISPLAY,
- g_param_spec_uint("cache_display",
- "Display cache size MB",
- NULL,
- 0,
- 128,
- PR_CACHE_SIZE_DEFAULT,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_CACHE_SIZE_TILES,
- g_param_spec_uint("cache_tiles",
- "Tile cache count",
- "Number of tiles to retain in memory at any one time.",
- 0,
- 256,
- PR_CACHE_SIZE_DEFAULT,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_WINDOW_FIT,
- g_param_spec_boolean("window_fit",
- "Fit window to image size",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_WINDOW_LIMIT,
- g_param_spec_boolean("window_limit",
- "Limit size of parent window",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_WINDOW_LIMIT_VALUE,
- g_param_spec_uint("window_limit_value",
- "Size limit of parent window",
- NULL,
- 10,
- 150,
- 100,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_AUTOFIT_LIMIT,
- g_param_spec_boolean("autofit_limit",
- "Limit size of image when autofitting",
- NULL,
- FALSE,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
- g_object_class_install_property(gobject_class,
- PROP_AUTOFIT_LIMIT_VALUE,
- g_param_spec_uint("autofit_limit_value",
- "Size limit of image when autofitting",
- NULL,
- 10,
- 150,
- 100,
- G_PARAM_READABLE | G_PARAM_WRITABLE));
-
-
- signals[SIGNAL_ZOOM] =
- g_signal_new("zoom",
- G_OBJECT_CLASS_TYPE(gobject_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(PixbufRendererClass, zoom),
- NULL, NULL,
- g_cclosure_marshal_VOID__DOUBLE,
- G_TYPE_NONE, 1,
- G_TYPE_DOUBLE);
-
- signals[SIGNAL_CLICKED] =
- g_signal_new("clicked",
- G_OBJECT_CLASS_TYPE(gobject_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(PixbufRendererClass, clicked),
- NULL, NULL,
- g_cclosure_marshal_VOID__BOXED,
- G_TYPE_NONE, 1,
- GDK_TYPE_EVENT);
-
- signals[SIGNAL_SCROLL_NOTIFY] =
- g_signal_new("scroll-notify",
- G_OBJECT_CLASS_TYPE(gobject_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(PixbufRendererClass, scroll_notify),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- signals[SIGNAL_RENDER_COMPLETE] =
- g_signal_new("render-complete",
- G_OBJECT_CLASS_TYPE(gobject_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(PixbufRendererClass, render_complete),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- signals[SIGNAL_DRAG] =
- g_signal_new("drag",
- G_OBJECT_CLASS_TYPE(gobject_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(PixbufRendererClass, drag),
- NULL, NULL,
- g_cclosure_marshal_VOID__BOXED,
- G_TYPE_NONE, 1,
- GDK_TYPE_EVENT);
-
- signals[SIGNAL_UPDATE_PIXEL] =
- g_signal_new("update-pixel",
- G_OBJECT_CLASS_TYPE(gobject_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET(PixbufRendererClass, update_pixel),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-}
-
-static void pixbuf_renderer_init(PixbufRenderer *pr)
-{
- GtkWidget *box;
-
- box = GTK_WIDGET(pr);
-
- pr->zoom_min = PR_ZOOM_MIN;
- pr->zoom_max = PR_ZOOM_MAX;
- pr->zoom_quality = GDK_INTERP_BILINEAR;
- pr->zoom_2pass = FALSE;
-
- pr->zoom = 1.0;
- pr->scale = 1.0;
-
- pr->dither_quality = GDK_RGB_DITHER_NORMAL;
-
- pr->scroll_reset = PR_SCROLL_RESET_TOPLEFT;
-
- pr->draw_idle_id = 0;
-
- pr->tile_width = PR_TILE_SIZE;
- pr->tile_height = PR_TILE_SIZE;
-
- pr->tiles = NULL;
- pr->tile_cache_size = 0;
-
- pr->tile_cache_max = PR_CACHE_SIZE_DEFAULT;
-
- pr->scroller_id = 0;
- pr->scroller_overlay = -1;
-
- pr->x_mouse = -1;
- pr->y_mouse = -1;
-
- pr->source_tiles_enabled = FALSE;
- pr->source_tiles = NULL;
-
- pr->orientation = 1;
-
- pr->norm_center_x = 0.5;
- pr->norm_center_y = 0.5;
-
- gtk_widget_set_double_buffered(box, FALSE);
- g_signal_connect_after(G_OBJECT(box), "size_allocate",
- G_CALLBACK(pr_size_cb), pr);
-
- g_signal_connect(G_OBJECT(pr), "hierarchy-changed",
- G_CALLBACK(pr_hierarchy_changed_cb), pr);
-
- pr_signals_connect(pr);
-}
-
-static void pixbuf_renderer_finalize(GObject *object)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(object);
-
- pr_queue_clear(pr);
- pr_tile_free_all(pr);
-
-
- if (pr->pixbuf) g_object_unref(pr->pixbuf);
- if (pr->spare_tile) g_object_unref(pr->spare_tile);
-
- pr_scroller_timer_set(pr, FALSE);
- pr_overlay_list_clear(pr);
-
- pr_source_tile_free_all(pr);
-}
-
-PixbufRenderer *pixbuf_renderer_new(void)
-{
- return g_object_new(TYPE_PIXBUF_RENDERER, NULL);
-}
-
-static void pixbuf_renderer_set_property(GObject *object, guint prop_id,
- const GValue *value, GParamSpec *pspec)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(object);
-
- switch (prop_id)
- {
- case PROP_ZOOM_MIN:
- pr->zoom_min = g_value_get_double(value);
- break;
- case PROP_ZOOM_MAX:
- pr->zoom_max = g_value_get_double(value);
- break;
- case PROP_ZOOM_QUALITY:
- pr->zoom_quality = g_value_get_uint(value);
- break;
- case PROP_ZOOM_2PASS:
- pr->zoom_2pass = g_value_get_boolean(value);
- break;
- case PROP_ZOOM_EXPAND:
- pr->zoom_expand = g_value_get_boolean(value);
- break;
- case PROP_DITHER_QUALITY:
- pr->dither_quality = g_value_get_uint(value);
- break;
- case PROP_SCROLL_RESET:
- pr->scroll_reset = g_value_get_uint(value);
- break;
- case PROP_DELAY_FLIP:
- pr->delay_flip = g_value_get_boolean(value);
- break;
- case PROP_LOADING:
- pr->loading = g_value_get_boolean(value);
- break;
- case PROP_COMPLETE:
- pr->complete = g_value_get_boolean(value);
- break;
- case PROP_CACHE_SIZE_DISPLAY:
- pr->tile_cache_max = g_value_get_uint(value);
- break;
- case PROP_CACHE_SIZE_TILES:
- pr->source_tiles_cache_size = g_value_get_uint(value);
- break;
- case PROP_WINDOW_FIT:
- pr->window_fit = g_value_get_boolean(value);
- break;
- case PROP_WINDOW_LIMIT:
- pr->window_limit = g_value_get_boolean(value);
- break;
- case PROP_WINDOW_LIMIT_VALUE:
- pr->window_limit_size = g_value_get_uint(value);
- break;
- case PROP_AUTOFIT_LIMIT:
- pr->autofit_limit = g_value_get_boolean(value);
- break;
- case PROP_AUTOFIT_LIMIT_VALUE:
- pr->autofit_limit_size = g_value_get_uint(value);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static void pixbuf_renderer_get_property(GObject *object, guint prop_id,
- GValue *value, GParamSpec *pspec)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(object);
-
- switch (prop_id)
- {
- case PROP_ZOOM_MIN:
- g_value_set_double(value, pr->zoom_min);
- break;
- case PROP_ZOOM_MAX:
- g_value_set_double(value, pr->zoom_max);
- break;
- case PROP_ZOOM_QUALITY:
- g_value_set_uint(value, pr->zoom_quality);
- break;
- case PROP_ZOOM_2PASS:
- g_value_set_boolean(value, pr->zoom_2pass);
- break;
- case PROP_ZOOM_EXPAND:
- g_value_set_boolean(value, pr->zoom_expand);
- break;
- case PROP_DITHER_QUALITY:
- g_value_set_uint(value, pr->dither_quality);
- break;
- case PROP_SCROLL_RESET:
- g_value_set_uint(value, pr->scroll_reset);
- break;
- case PROP_DELAY_FLIP:
- g_value_set_boolean(value, pr->delay_flip);
- break;
- case PROP_LOADING:
- g_value_set_boolean(value, pr->loading);
- break;
- case PROP_COMPLETE:
- g_value_set_boolean(value, pr->complete);
- break;
- case PROP_CACHE_SIZE_DISPLAY:
- g_value_set_uint(value, pr->tile_cache_max);
- break;
- case PROP_CACHE_SIZE_TILES:
- g_value_set_uint(value, pr->source_tiles_cache_size);
- break;
- case PROP_WINDOW_FIT:
- g_value_set_boolean(value, pr->window_fit);
- break;
- case PROP_WINDOW_LIMIT:
- g_value_set_boolean(value, pr->window_limit);
- break;
- case PROP_WINDOW_LIMIT_VALUE:
- g_value_set_uint(value, pr->window_limit_size);
- break;
- case PROP_AUTOFIT_LIMIT:
- g_value_set_boolean(value, pr->autofit_limit);
- break;
- case PROP_AUTOFIT_LIMIT_VALUE:
- g_value_set_uint(value, pr->autofit_limit_size);
- break;
- default:
- G_OBJECT_WARN_INVALID_PROPERTY_ID(object, prop_id, pspec);
- break;
- }
-}
-
-static gboolean pixbuf_renderer_expose(GtkWidget *widget, GdkEventExpose *event)
-{
- if (GTK_WIDGET_DRAWABLE(widget))
- {
- if (!GTK_WIDGET_NO_WINDOW(widget))
- {
- if (event->window != widget->window)
- {
- GdkRectangle area;
-
- gdk_window_get_position(event->window, &area.x, &area.y);
-
- area.x += event->area.x;
- area.y += event->area.y;
- area.width = event->area.width;
- area.height = event->area.height;
- pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &area);
- }
- else
- {
- pixbuf_renderer_paint(PIXBUF_RENDERER(widget), &event->area);
- }
- }
- }
-
- return FALSE;
-}
-
-/*
- *-------------------------------------------------------------------
- * misc utilities
- *-------------------------------------------------------------------
- */
-
-static void widget_set_cursor(GtkWidget *widget, gint icon)
-{
- GdkCursor *cursor;
-
- if (!widget->window) return;
-
- if (icon == -1)
- {
- cursor = NULL;
- }
- else
- {
- cursor = gdk_cursor_new(icon);
- }
-
- gdk_window_set_cursor(widget->window, cursor);
-
- if (cursor) gdk_cursor_unref(cursor);
-}
-
-static gint pixmap_calc_size(GdkPixmap *pixmap)
-{
- gint w, h, d;
-
- d = gdk_drawable_get_depth(pixmap);
- gdk_drawable_get_size(pixmap, &w, &h);
- return w * h * (d / 8);
-}
-
-static gboolean pr_clip_region(gint x, gint y, gint w, gint h,
- gint clip_x, gint clip_y, gint clip_w, gint clip_h,
- gint *rx, gint *ry, gint *rw, gint *rh)
-{
- if (clip_x + clip_w <= x ||
- clip_x >= x + w ||
- clip_y + clip_h <= y ||
- clip_y >= y + h)
- {
- return FALSE;
- }
-
- *rx = MAX(x, clip_x);
- *rw = MIN((x + w), (clip_x + clip_w)) - *rx;
-
- *ry = MAX(y, clip_y);
- *rh = MIN((y + h), (clip_y + clip_h)) - *ry;
-
- return TRUE;
-}
-
-static gboolean pr_parent_window_sizable(PixbufRenderer *pr)
-{
- GdkWindowState state;
-
- if (!pr->parent_window) return FALSE;
- if (!pr->window_fit) return FALSE;
- if (!GTK_WIDGET(pr)->window) return FALSE;
-
- if (!pr->parent_window->window) return FALSE;
- state = gdk_window_get_state(pr->parent_window->window);
- if (state & GDK_WINDOW_STATE_MAXIMIZED) return FALSE;
-
- return TRUE;
-}
-
-static gboolean pr_parent_window_resize(PixbufRenderer *pr, gint w, gint h)
-{
- GtkWidget *widget;
- GtkWidget *parent;
- gint ww, wh;
-
- if (!pr_parent_window_sizable(pr)) return FALSE;
-
- if (pr->window_limit)
- {
- gint sw = gdk_screen_width() * pr->window_limit_size / 100;
- gint sh = gdk_screen_height() * pr->window_limit_size / 100;
-
- if (w > sw) w = sw;
- if (h > sh) h = sh;
- }
-
- widget = GTK_WIDGET(pr);
- parent = GTK_WIDGET(pr->parent_window);
-
- w += (parent->allocation.width - widget->allocation.width);
- h += (parent->allocation.height - widget->allocation.height);
-
- gdk_drawable_get_size(parent->window, &ww, &wh);
- if (w == ww && h == wh) return FALSE;
-
- gdk_window_resize(parent->window, w, h);
-
- return TRUE;
-}
-
-void pixbuf_renderer_set_parent(PixbufRenderer *pr, GtkWindow *window)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
- g_return_if_fail(window == NULL || GTK_IS_WINDOW(window));
-
- pr->parent_window = GTK_WIDGET(window);
-}
-
-GtkWindow *pixbuf_renderer_get_parent(PixbufRenderer *pr)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
-
- return GTK_WINDOW(pr->parent_window);
-}
-
-
-/*
- *-------------------------------------------------------------------
- * overlays
- *-------------------------------------------------------------------
- */
-
-static void pr_overlay_get_position(PixbufRenderer *pr, OverlayData *od,
- gint *x, gint *y, gint *w, gint *h)
-{
- gint px, py, pw, ph;
-
- pw = gdk_pixbuf_get_width(od->pixbuf);
- ph = gdk_pixbuf_get_height(od->pixbuf);
- px = od->x;
- py = od->y;
-
- if (od->flags & OVL_RELATIVE)
- {
- if (px < 0) px = pr->window_width - pw + px;
- if (py < 0) py = pr->window_height - ph + py;
- }
-
- if (x) *x = px;
- if (y) *y = py;
- if (w) *w = pw;
- if (h) *h = ph;
-}
-
-static void pr_overlay_init_window(PixbufRenderer *pr, OverlayData *od)
-{
- gint px, py, pw, ph;
- GdkWindowAttr attributes;
- gint attributes_mask;
-
- pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
-
- attributes.window_type = GDK_WINDOW_CHILD;
- attributes.wclass = GDK_INPUT_OUTPUT;
- attributes.width = pw;
- attributes.height = ph;
- attributes.event_mask = GDK_EXPOSURE_MASK;
- attributes_mask = 0;
-
- od->window = gdk_window_new(GTK_WIDGET(pr)->window, &attributes, attributes_mask);
- gdk_window_set_user_data(od->window, pr);
- gdk_window_move(od->window, px, py);
- gdk_window_show(od->window);
-}
-
-static void pr_overlay_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
- ImageTile *it)
-{
- GtkWidget *box;
- GList *work;
-
- box = GTK_WIDGET(pr);
-
- work = pr->overlay_list;
- while (work)
- {
- OverlayData *od;
- gint px, py, pw, ph;
- gint rx, ry, rw, rh;
-
- od = work->data;
- work = work->next;
-
- if (!od->window) pr_overlay_init_window(pr, od);
-
- pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
- if (pr_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
- {
- if (!pr->overlay_buffer)
- {
- pr->overlay_buffer = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
- }
-
- if (it)
- {
- gdk_draw_drawable(pr->overlay_buffer, box->style->fg_gc[GTK_WIDGET_STATE(box)],
- it->pixmap,
- rx - (pr->x_offset + (it->x - pr->x_scroll)),
- ry - (pr->y_offset + (it->y - pr->y_scroll)),
- 0, 0, rw, rh);
- gdk_draw_pixbuf(pr->overlay_buffer,
- box->style->fg_gc[GTK_WIDGET_STATE(box)],
- od->pixbuf,
- rx - px, ry - py,
- 0, 0, rw, rh,
- pr->dither_quality, rx, ry);
- gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
- pr->overlay_buffer,
- 0, 0,
- rx - px, ry - py, rw, rh);
- }
- else
- {
- /* no ImageTile means region may be larger than our scratch buffer */
- gint sx, sy;
-
- for (sx = rx; sx < rx + rw; sx += pr->tile_width)
- for (sy = ry; sy < ry + rh; sy += pr->tile_height)
- {
- gint sw, sh;
-
- sw = MIN(rx + rw - sx, pr->tile_width);
- sh = MIN(ry + rh - sy, pr->tile_height);
-
- gdk_draw_rectangle(pr->overlay_buffer,
- box->style->bg_gc[GTK_WIDGET_STATE(box)], TRUE,
- 0, 0, sw, sh);
- gdk_draw_pixbuf(pr->overlay_buffer,
- box->style->fg_gc[GTK_WIDGET_STATE(box)],
- od->pixbuf,
- sx - px, sy - py,
- 0, 0, sw, sh,
- pr->dither_quality, sx, sy);
- gdk_draw_drawable(od->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
- pr->overlay_buffer,
- 0, 0,
- sx - px, sy - py, sw, sh);
- }
- }
- }
- }
-}
-
-static void pr_overlay_queue_draw(PixbufRenderer *pr, OverlayData *od)
-{
- gint x, y, w, h;
-
- pr_overlay_get_position(pr, od, &x, &y, &w, &h);
- pr_queue(pr, pr->x_scroll - pr->x_offset + x,
- pr->y_scroll - pr->y_offset + y,
- w, h,
- FALSE, TILE_RENDER_ALL, FALSE, FALSE);
-
- pr_border_draw(pr, x, y, w, h);
-}
-
-static void pr_overlay_queue_all(PixbufRenderer *pr)
-{
- GList *work;
-
- work = pr->overlay_list;
- while (work)
- {
- OverlayData *od = work->data;
- work = work->next;
-
- pr_overlay_queue_draw(pr, od);
- }
-}
-
-static void pr_overlay_update_sizes(PixbufRenderer *pr)
-{
- GList *work;
-
- work = pr->overlay_list;
- while (work)
- {
- OverlayData *od = work->data;
- work = work->next;
-
- if (!od->window) pr_overlay_init_window(pr, od);
-
- if (od->flags & OVL_RELATIVE)
- {
- gint x, y, w, h;
-
- pr_overlay_get_position(pr, od, &x, &y, &w, &h);
- gdk_window_move_resize(od->window, x, y, w, h);
- }
- }
-}
-
-static OverlayData *pr_overlay_find(PixbufRenderer *pr, gint id)
-{
- GList *work;
-
- work = pr->overlay_list;
- while (work)
- {
- OverlayData *od = work->data;
- work = work->next;
-
- if (od->id == id) return od;
- }
-
- return NULL;
-}
-
-
-gint pixbuf_renderer_overlay_add(PixbufRenderer *pr, GdkPixbuf *pixbuf, gint x, gint y,
- OverlayRendererFlags flags)
-{
- OverlayData *od;
- gint id;
-
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), -1);
- g_return_val_if_fail(pixbuf != NULL, -1);
-
- id = 1;
- while (pr_overlay_find(pr, id)) id++;
-
- od = g_new0(OverlayData, 1);
- od->id = id;
- od->pixbuf = pixbuf;
- g_object_ref(G_OBJECT(od->pixbuf));
- od->x = x;
- od->y = y;
- od->flags = flags;
-
- pr_overlay_init_window(pr, od);
-
- pr->overlay_list = g_list_append(pr->overlay_list, od);
-
- pr_overlay_queue_draw(pr, od);
-
- return od->id;
-}
-
-static void pr_overlay_free(PixbufRenderer *pr, OverlayData *od)
-{
- pr->overlay_list = g_list_remove(pr->overlay_list, od);
-
- if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
- if (od->window) gdk_window_destroy(od->window);
- g_free(od);
-
- if (!pr->overlay_list && pr->overlay_buffer)
- {
- g_object_unref(pr->overlay_buffer);
- pr->overlay_buffer = NULL;
- }
-}
-
-static void pr_overlay_list_clear(PixbufRenderer *pr)
-{
- while (pr->overlay_list)
- {
- OverlayData *od;
-
- od = pr->overlay_list->data;
- pr_overlay_free(pr, od);
- }
-}
-
-static void pr_overlay_list_reset_window(PixbufRenderer *pr)
-{
- GList *work;
-
- if (pr->overlay_buffer) g_object_unref(pr->overlay_buffer);
- pr->overlay_buffer = NULL;
-
- work = pr->overlay_list;
- while (work)
- {
- OverlayData *od = work->data;
- work = work->next;
- if (od->window) gdk_window_destroy(od->window);
- od->window = NULL;
- }
-}
-
-void pixbuf_renderer_overlay_set(PixbufRenderer *pr, gint id, GdkPixbuf *pixbuf, gint x, gint y)
-{
- OverlayData *od;
-
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- od = pr_overlay_find(pr, id);
- if (!od) return;
-
- if (pixbuf)
- {
- gint px, py, pw, ph;
-
- g_object_ref(G_OBJECT(pixbuf));
- g_object_unref(G_OBJECT(od->pixbuf));
- od->pixbuf = pixbuf;
-
- od->x = x;
- od->y = y;
-
- if (!od->window) pr_overlay_init_window(pr, od);
-
- pr_overlay_queue_draw(pr, od);
- pr_overlay_get_position(pr, od, &px, &py, &pw, &ph);
- gdk_window_move_resize(od->window, px, py, pw, ph);
- }
- else
- {
- pr_overlay_queue_draw(pr, od);
- pr_overlay_free(pr, od);
- }
-}
-
-gboolean pixbuf_renderer_overlay_get(PixbufRenderer *pr, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
-{
- OverlayData *od;
-
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
-
- od = pr_overlay_find(pr, id);
- if (!od) return FALSE;
-
- if (pixbuf) *pixbuf = od->pixbuf;
- if (x) *x = od->x;
- if (y) *y = od->y;
-
- return TRUE;
-}
-
-void pixbuf_renderer_overlay_remove(PixbufRenderer *pr, gint id)
-{
- pixbuf_renderer_overlay_set(pr, id, NULL, 0, 0);
-}
-
-static void pr_hierarchy_changed_cb(GtkWidget *widget, GtkWidget *previous_toplevel, gpointer data)
-{
- PixbufRenderer *pr = data;
- pr_overlay_list_reset_window(pr);
-}
-
-
-/*
- *-------------------------------------------------------------------
- * scroller overlay
- *-------------------------------------------------------------------
- */
-
-
-static gboolean pr_scroller_update_cb(gpointer data)
-{
- PixbufRenderer *pr = data;
- gint x, y;
- gint xinc, yinc;
-
- /* this was a simple scroll by difference between scroller and mouse position,
- * but all this math results in a smoother result and accounts for a dead zone.
- */
-
- if (abs(pr->scroller_xpos - pr->scroller_x) < PR_SCROLLER_DEAD_ZONE)
- {
- x = 0;
- }
- else
- {
- gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
- x = (pr->scroller_xpos - pr->scroller_x) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
- x += (x > 0) ? -shift : shift;
- }
-
- if (abs(pr->scroller_ypos - pr->scroller_y) < PR_SCROLLER_DEAD_ZONE)
- {
- y = 0;
- }
- else
- {
- gint shift = PR_SCROLLER_DEAD_ZONE / 2 * PR_SCROLLER_UPDATES_PER_SEC;
- y = (pr->scroller_ypos - pr->scroller_y) / 2 * PR_SCROLLER_UPDATES_PER_SEC;
- y += (y > 0) ? -shift : shift;
- }
-
- if (abs(x) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
- {
- xinc = x;
- }
- else
- {
- xinc = pr->scroller_xinc;
-
- if (x >= 0)
- {
- if (xinc < 0) xinc = 0;
- if (x < xinc) xinc = x;
- if (x > xinc) xinc = MIN(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
- }
- else
- {
- if (xinc > 0) xinc = 0;
- if (x > xinc) xinc = x;
- if (x < xinc) xinc = MAX(xinc + x / PR_SCROLLER_UPDATES_PER_SEC, x);
- }
- }
-
- if (abs(y) < PR_SCROLLER_DEAD_ZONE * PR_SCROLLER_UPDATES_PER_SEC)
- {
- yinc = y;
- }
- else
- {
- yinc = pr->scroller_yinc;
-
- if (y >= 0)
- {
- if (yinc < 0) yinc = 0;
- if (y < yinc) yinc = y;
- if (y > yinc) yinc = MIN(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
- }
- else
- {
- if (yinc > 0) yinc = 0;
- if (y > yinc) yinc = y;
- if (y < yinc) yinc = MAX(yinc + y / PR_SCROLLER_UPDATES_PER_SEC, y);
- }
- }
-
- pr->scroller_xinc = xinc;
- pr->scroller_yinc = yinc;
-
- xinc = xinc / PR_SCROLLER_UPDATES_PER_SEC;
- yinc = yinc / PR_SCROLLER_UPDATES_PER_SEC;
-
- pixbuf_renderer_scroll(pr, xinc, yinc);
-
- return TRUE;
-}
-
-static void pr_scroller_timer_set(PixbufRenderer *pr, gboolean start)
-{
- if (pr->scroller_id)
- {
- g_source_remove(pr->scroller_id);
- pr->scroller_id = 0;
- }
-
- if (start)
- {
- pr->scroller_id = g_timeout_add(1000 / PR_SCROLLER_UPDATES_PER_SEC,
- pr_scroller_update_cb, pr);
- }
-}
-
-static void pr_scroller_start(PixbufRenderer *pr, gint x, gint y)
-{
- if (pr->scroller_overlay == -1)
- {
- GdkPixbuf *pixbuf;
- gint w, h;
-
-#ifdef GQ_BUILD
- pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
-#else
- pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, 32, 32);
- gdk_pixbuf_fill(pixbuf, 0x000000ff);
-#endif
- w = gdk_pixbuf_get_width(pixbuf);
- h = gdk_pixbuf_get_height(pixbuf);
-
- pr->scroller_overlay = pixbuf_renderer_overlay_add(pr, pixbuf, x - w / 2, y - h / 2, OVL_NORMAL);
- g_object_unref(pixbuf);
- }
-
- pr->scroller_x = x;
- pr->scroller_y = y;
- pr->scroller_xpos = x;
- pr->scroller_ypos = y;
-
- pr_scroller_timer_set(pr, TRUE);
-}
-
-static void pr_scroller_stop(PixbufRenderer *pr)
-{
- if (!pr->scroller_id) return;
-
- pixbuf_renderer_overlay_remove(pr, pr->scroller_overlay);
- pr->scroller_overlay = -1;
-
- pr_scroller_timer_set(pr, FALSE);
-}
-
-/*
- *-------------------------------------------------------------------
- * borders
- *-------------------------------------------------------------------
- */
-
-static void pr_border_draw(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
-{
- GtkWidget *box;
- gint rx, ry, rw, rh;
-
- box = GTK_WIDGET(pr);
-
- if (!box->window) return;
-
- if (!pr->pixbuf && !pr->source_tiles_enabled)
- {
- if (pr_clip_region(x, y, w, h,
- 0, 0,
- pr->window_width, pr->window_height,
- &rx, &ry, &rw, &rh))
- {
- gdk_window_clear_area(box->window, rx, ry, rw, rh);
- pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
- }
- return;
- }
-
- if (pr->vis_width < pr->window_width)
- {
- if (pr->x_offset > 0 &&
- pr_clip_region(x, y, w, h,
- 0, 0,
- pr->x_offset, pr->window_height,
- &rx, &ry, &rw, &rh))
- {
- gdk_window_clear_area(box->window, rx, ry, rw, rh);
- pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
- }
- if (pr->window_width - pr->vis_width - pr->x_offset > 0 &&
- pr_clip_region(x, y, w, h,
- pr->x_offset + pr->vis_width, 0,
- pr->window_width - pr->vis_width - pr->x_offset, pr->window_height,
- &rx, &ry, &rw, &rh))
- {
- gdk_window_clear_area(box->window, rx, ry, rw, rh);
- pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
- }
- }
- if (pr->vis_height < pr->window_height)
- {
- if (pr->y_offset > 0 &&
- pr_clip_region(x, y, w, h,
- pr->x_offset, 0,
- pr->vis_width, pr->y_offset,
- &rx, &ry, &rw, &rh))
- {
- gdk_window_clear_area(box->window, rx, ry, rw, rh);
- pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
- }
- if (pr->window_height - pr->vis_height - pr->y_offset > 0 &&
- pr_clip_region(x, y, w, h,
- pr->x_offset, pr->y_offset + pr->vis_height,
- pr->vis_width, pr->window_height - pr->vis_height - pr->y_offset,
- &rx, &ry, &rw, &rh))
- {
- gdk_window_clear_area(box->window, rx, ry, rw, rh);
- pr_overlay_draw(pr, rx, ry, rw, rh, NULL);
- }
- }
-}
-
-static void pr_border_clear(PixbufRenderer *pr)
-{
- pr_border_draw(pr, 0, 0, pr->window_width, pr->window_height);
-}
-
-void pixbuf_renderer_set_color(PixbufRenderer *pr, GdkColor *color)
-{
- GtkStyle *style;
- GtkWidget *widget;
-
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- widget = GTK_WIDGET(pr);
-
- if (color) {
- GdkColor *slot;
-
- style = gtk_style_copy(gtk_widget_get_style(widget));
- slot = &style->bg[GTK_STATE_NORMAL];
-
- slot->red = color->red;
- slot->green = color->green;
- slot->blue = color->blue;
- }
- else {
- style = gtk_style_copy(gtk_widget_get_default_style());
- }
-
- gtk_widget_set_style(widget, style);
-
- if (GTK_WIDGET_VISIBLE(widget)) pr_border_clear(pr);
-}
-
-
-/*
- *-------------------------------------------------------------------
- * source tiles
- *-------------------------------------------------------------------
- */
-
-static void pr_source_tile_free(SourceTile *st)
-{
- if (!st) return;
-
- if (st->pixbuf) g_object_unref(st->pixbuf);
- g_free(st);
-}
-
-static void pr_source_tile_free_all(PixbufRenderer *pr)
-{
- GList *work;
-
- work = pr->source_tiles;
- while (work)
- {
- SourceTile *st;
-
- st = work->data;
- work = work->next;
-
- pr_source_tile_free(st);
- }
-
- g_list_free(pr->source_tiles);
- pr->source_tiles = NULL;
-}
-
-static void pr_source_tile_unset(PixbufRenderer *pr)
-{
- pr_source_tile_free_all(pr);
- pr->source_tiles_enabled = FALSE;
-}
-
-static gboolean pr_source_tile_visible(PixbufRenderer *pr, SourceTile *st)
-{
- gint x1, y1, x2, y2;
-
- if (!st) return FALSE;
-
- x1 = ROUND_DOWN(pr->x_scroll, pr->tile_width);
- y1 = ROUND_DOWN(pr->y_scroll, pr->tile_height);
- x2 = ROUND_UP(pr->x_scroll + pr->vis_width, pr->tile_width);
- y2 = ROUND_UP(pr->y_scroll + pr->vis_height, pr->tile_height);
-
- return !((gdouble)st->x * pr->scale > (gdouble)x2 ||
- (gdouble)(st->x + pr->source_tile_width) * pr->scale < (gdouble)x1 ||
- (gdouble)st->y * pr->scale > (gdouble)y2 ||
- (gdouble)(st->y + pr->source_tile_height) * pr->scale < (gdouble)y1);
-}
-
-static SourceTile *pr_source_tile_new(PixbufRenderer *pr, gint x, gint y)
-{
- SourceTile *st = NULL;
- gint count;
-
- g_return_val_if_fail(pr->source_tile_width >= 1 && pr->source_tile_height >= 1, NULL);
-
- if (pr->source_tiles_cache_size < 4) pr->source_tiles_cache_size = 4;
-
- count = g_list_length(pr->source_tiles);
- if (count >= pr->source_tiles_cache_size)
- {
- GList *work;
-
- work = g_list_last(pr->source_tiles);
- while (work && count >= pr->source_tiles_cache_size)
- {
- SourceTile *needle;
-
- needle = work->data;
- work = work->prev;
-
- if (!pr_source_tile_visible(pr, needle))
- {
- pr->source_tiles = g_list_remove(pr->source_tiles, needle);
-
- if (pr->func_tile_dispose)
- {
- pr->func_tile_dispose(pr, needle->x, needle->y,
- pr->source_tile_width, pr->source_tile_height,
- needle->pixbuf, pr->func_tile_data);
- }
-
- if (!st)
- {
- st = needle;
- }
- else
- {
- pr_source_tile_free(needle);
- }
-
- count--;
- }
- }
- }
-
- if (!st)
- {
- st = g_new0(SourceTile, 1);
- st->pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8,
- pr->source_tile_width, pr->source_tile_height);
- }
-
- st->x = ROUND_DOWN(x, pr->source_tile_width);
- st->y = ROUND_DOWN(y, pr->source_tile_height);
- st->blank = TRUE;
-
- pr->source_tiles = g_list_prepend(pr->source_tiles, st);
-
- return st;
-}
-
-static SourceTile *pr_source_tile_request(PixbufRenderer *pr, gint x, gint y)
-{
- SourceTile *st;
-
- st = pr_source_tile_new(pr, x, y);
- if (!st) return NULL;
-
- if (pr->func_tile_request &&
- pr->func_tile_request(pr, st->x, st->y,
- pr->source_tile_width, pr->source_tile_height, st->pixbuf, pr->func_tile_data))
- {
- st->blank = FALSE;
- }
-
- pr_tile_invalidate_region(pr, st->x * pr->scale, st->y * pr->scale,
- pr->source_tile_width * pr->scale, pr->source_tile_height * pr->scale);
-
- return st;
-}
-
-static SourceTile *pr_source_tile_find(PixbufRenderer *pr, gint x, gint y)
-{
- GList *work;
-
- work = pr->source_tiles;
- while (work)
- {
- SourceTile *st = work->data;
-
- if (x >= st->x && x < st->x + pr->source_tile_width &&
- y >= st->y && y < st->y + pr->source_tile_height)
- {
- if (work != pr->source_tiles)
- {
- pr->source_tiles = g_list_remove_link(pr->source_tiles, work);
- pr->source_tiles = g_list_concat(work, pr->source_tiles);
- }
- return st;
- }
-
- work = work->next;
- }
-
- return NULL;
-}
-
-static GList *pr_source_tile_compute_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h, gboolean request)
-{
- gint x1, y1;
- GList *list = NULL;
- gint sx, sy;
-
- if (x < 0) x = 0;
- if (y < 0) y = 0;
- if (w > pr->image_width) w = pr->image_width;
- if (h > pr->image_height) h = pr->image_height;
-
- sx = ROUND_DOWN(x, pr->source_tile_width);
- sy = ROUND_DOWN(y, pr->source_tile_height);
-
- for (x1 = sx; x1 < x + w; x1+= pr->source_tile_width)
- {
- for (y1 = sy; y1 < y + h; y1 += pr->source_tile_height)
- {
- SourceTile *st;
-
- st = pr_source_tile_find(pr, x1, y1);
- if (!st && request) st = pr_source_tile_request(pr, x1, y1);
-
- if (st) list = g_list_prepend(list, st);
- }
- }
-
- return g_list_reverse(list);
-}
-
-static void pr_source_tile_changed(PixbufRenderer *pr, gint x, gint y, gint width, gint height)
-{
- GList *work;
-
- if (width < 1 || height < 1) return;
-
- work = pr->source_tiles;
- while (work)
- {
- SourceTile *st;
- gint rx, ry, rw, rh;
-
- st = work->data;
- work = work->next;
-
- if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
- x, y, width, height,
- &rx, &ry, &rw, &rh))
- {
- GdkPixbuf *pixbuf;
-
- pixbuf = gdk_pixbuf_new_subpixbuf(st->pixbuf, rx - st->x, ry - st->y, rw, rh);
- if (pr->func_tile_request &&
- pr->func_tile_request(pr, rx, ry, rw, rh, pixbuf, pr->func_tile_data))
- {
- pr_tile_invalidate_region(pr, rx * pr->scale, ry * pr->scale,
- rw * pr->scale, rh * pr->scale);
- }
- g_object_unref(pixbuf);
- }
- }
-}
-
-static gboolean pr_source_tile_render(PixbufRenderer *pr, ImageTile *it,
- gint x, gint y, gint w, gint h,
- gboolean new_data, gboolean fast)
-{
- GtkWidget *box;
- GList *list;
- GList *work;
- gboolean draw = FALSE;
-
- box = GTK_WIDGET(pr);
-
- if (pr->zoom == 1.0 || pr->scale == 1.0)
- {
- list = pr_source_tile_compute_region(pr, it->x + x, it->y + y, w, h, TRUE);
- work = list;
- while (work)
- {
- SourceTile *st;
- gint rx, ry, rw, rh;
-
- st = work->data;
- work = work->next;
-
- if (pr_clip_region(st->x, st->y, pr->source_tile_width, pr->source_tile_height,
- it->x + x, it->y + y, w, h,
- &rx, &ry, &rw, &rh))
- {
- if (st->blank)
- {
- gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
- rx - st->x, ry - st->y, rw, rh);
- }
- else /* (pr->zoom == 1.0 || pr->scale == 1.0) */
- {
- gdk_draw_pixbuf(it->pixmap,
- box->style->fg_gc[GTK_WIDGET_STATE(box)],
- st->pixbuf,
- rx - st->x, ry - st->y,
- rx - it->x, ry - it->y,
- rw, rh,
- pr->dither_quality, rx, ry);
- }
- }
- }
- }
- else
- {
- gdouble scale_x, scale_y;
- gint sx, sy, sw, sh;
-
- if (pr->image_width == 0 || pr->image_height == 0) return FALSE;
- scale_x = (gdouble)pr->width / pr->image_width;
- scale_y = (gdouble)pr->height / pr->image_height;
-
- sx = (gdouble)(it->x + x) / scale_x;
- sy = (gdouble)(it->y + y) / scale_y;
- sw = (gdouble)w / scale_x;
- sh = (gdouble)h / scale_y;
-
- if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
-
-#if 0
- /* draws red over draw region, to check for leaks (regions not filled) */
- pixbuf_set_rect_fill(it->pixbuf, x, y, w, h, 255, 0, 0, 255);
-#endif
-
- list = pr_source_tile_compute_region(pr, sx, sy, sw, sh, TRUE);
- work = list;
- while (work)
- {
- SourceTile *st;
- gint rx, ry, rw, rh;
- gint stx, sty, stw, sth;
-
- st = work->data;
- work = work->next;
-
- stx = floor((gdouble)st->x * scale_x);
- sty = floor((gdouble)st->y * scale_y);
- stw = ceil((gdouble)(st->x + pr->source_tile_width) * scale_x) - stx;
- sth = ceil((gdouble)(st->y + pr->source_tile_height) * scale_y) - sty;
-
- if (pr_clip_region(stx, sty, stw, sth,
- it->x + x, it->y + y, w, h,
- &rx, &ry, &rw, &rh))
- {
- if (st->blank)
- {
- gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
- rx - st->x, ry - st->y, rw, rh);
- }
- else
- {
- gdouble offset_x;
- gdouble offset_y;
-
- /* may need to use unfloored stx,sty values here */
- offset_x = (gdouble)(stx - it->x);
- offset_y = (gdouble)(sty - it->y);
-
- gdk_pixbuf_scale(st->pixbuf, it->pixbuf, rx - it->x, ry - it->y, rw, rh,
- (gdouble) 0.0 + offset_x,
- (gdouble) 0.0 + offset_y,
- scale_x, scale_y,
- (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
- draw = TRUE;
- }
- }
- }
- }
-
- g_list_free(list);
-
- return draw;
-}
-
-void pixbuf_renderer_set_tiles(PixbufRenderer *pr, gint width, gint height,
- gint tile_width, gint tile_height, gint cache_size,
- PixbufRendererTileRequestFunc func_request,
- PixbufRendererTileDisposeFunc func_dispose,
- gpointer user_data,
- gdouble zoom)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
- g_return_if_fail(tile_width >= 32 && tile_width >= 32);
- g_return_if_fail(width >= 32 && height > 32);
- g_return_if_fail(func_request != NULL);
-
- if (pr->pixbuf) g_object_unref(pr->pixbuf);
- pr->pixbuf = NULL;
-
- pr_source_tile_unset(pr);
-
- if (cache_size < 4) cache_size = 4;
-
- pr->source_tiles_enabled = TRUE;
- pr->source_tiles_cache_size = cache_size;
- pr->source_tile_width = tile_width;
- pr->source_tile_height = tile_height;
-
- pr->image_width = width;
- pr->image_height = height;
-
- pr->func_tile_request = func_request;
- pr->func_tile_dispose = func_dispose;
- pr->func_tile_data = user_data;
-
- pr_zoom_sync(pr, zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
- pr_redraw(pr, TRUE);
-}
-
-void pixbuf_renderer_set_tiles_size(PixbufRenderer *pr, gint width, gint height)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
- g_return_if_fail(width >= 32 && height > 32);
-
- if (!pr->source_tiles_enabled) return;
- if (pr->image_width == width && pr->image_height == height) return;
-
- pr->image_width = width;
- pr->image_height = height;
-
- pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
-}
-
-gint pixbuf_renderer_get_tiles(PixbufRenderer *pr)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
-
- return pr->source_tiles_enabled;
-}
-
-static void pr_zoom_adjust_real(PixbufRenderer *pr, gdouble increment,
- PrZoomFlags flags, gint x, gint y)
-{
- gdouble zoom = pr->zoom;
-
- if (increment == 0.0) return;
-
- if (zoom == 0.0)
- {
- if (pr->scale < 1.0)
- {
- zoom = 0.0 - 1.0 / pr->scale;
- }
- else
- {
- zoom = pr->scale;
- }
- }
-
- if (increment < 0.0)
- {
- if (zoom >= 1.0 && zoom + increment < 1.0)
- {
- zoom = zoom + increment - 2.0;
- }
- else
- {
- zoom = zoom + increment;
- }
- }
- else
- {
- if (zoom <= -1.0 && zoom + increment > -1.0)
- {
- zoom = zoom + increment + 2.0;
- }
- else
- {
- zoom = zoom + increment;
- }
- }
-
- pr_zoom_sync(pr, zoom, flags, x, y);
-}
-
-/*
- *-------------------------------------------------------------------
- * display tiles
- *-------------------------------------------------------------------
- */
-
-static ImageTile *pr_tile_new(gint x, gint y, gint width, gint height)
-{
- ImageTile *it;
-
- it = g_new0(ImageTile, 1);
-
- it->x = x;
- it->y = y;
- it->w = width;
- it->h = height;
-
- it->render_done = TILE_RENDER_NONE;
-
- return it;
-}
-
-static void pr_tile_free(ImageTile *it)
-{
- if (!it) return;
-
- if (it->pixbuf) g_object_unref(it->pixbuf);
- if (it->pixmap) g_object_unref(it->pixmap);
-
- g_free(it);
-}
-
-static void pr_tile_free_all(PixbufRenderer *pr)
-{
- GList *work;
-
- work = pr->tiles;
- while (work)
- {
- ImageTile *it;
-
- it = work->data;
- work = work->next;
-
- pr_tile_free(it);
- }
-
- g_list_free(pr->tiles);
- pr->tiles = NULL;
- pr->tile_cache_size = 0;
-}
-
-static ImageTile *pr_tile_add(PixbufRenderer *pr, gint x, gint y)
-{
- ImageTile *it;
-
- it = pr_tile_new(x, y, pr->tile_width, pr->tile_height);
-
- if (it->x + it->w > pr->width) it->w = pr->width - it->x;
- if (it->y + it->h > pr->height) it->h = pr->height - it->y;
-
- pr->tiles = g_list_prepend(pr->tiles, it);
- pr->tile_cache_size += it->size;
-
- return it;
-}
-
-static void pr_tile_remove(PixbufRenderer *pr, ImageTile *it)
-{
- if (it->qd)
- {
- QueueData *qd = it->qd;
-
- it->qd = NULL;
- pr->draw_queue = g_list_remove(pr->draw_queue, qd);
- g_free(qd);
- }
-
- if (it->qd2)
- {
- QueueData *qd = it->qd2;
-
- it->qd2 = NULL;
- pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
- g_free(qd);
- }
-
- pr->tiles = g_list_remove(pr->tiles, it);
- pr->tile_cache_size -= it->size;
-
- pr_tile_free(it);
-}
-
-static void pr_tile_free_space(PixbufRenderer *pr, guint space, ImageTile *it)
-{
- GList *work;
- guint tile_max;
-
- work = g_list_last(pr->tiles);
-
- if (pr->source_tiles_enabled && pr->scale < 1.0)
- {
- gint tiles;
-
- tiles = (pr->vis_width / pr->tile_width + 1) * (pr->vis_height / pr->tile_height + 1);
- tile_max = MAX(tiles * pr->tile_width * pr->tile_height * 3,
- (gint)((gdouble)pr->tile_cache_max * 1048576.0 * pr->scale));
- }
- else
- {
- tile_max = pr->tile_cache_max * 1048576;
- }
-
- while (work && pr->tile_cache_size + space > tile_max)
- {
- ImageTile *needle;
-
- needle = work->data;
- work = work->prev;
- if (needle != it &&
- ((!needle->qd && !needle->qd2) || !pr_tile_is_visible(pr, needle))) pr_tile_remove(pr, needle);
- }
-}
-
-static void pr_tile_invalidate_all(PixbufRenderer *pr)
-{
- GList *work;
-
- work = pr->tiles;
- while (work)
- {
- ImageTile *it;
-
- it = work->data;
- work = work->next;
-
- it->render_done = TILE_RENDER_NONE;
- it->render_todo = TILE_RENDER_ALL;
- it->blank = FALSE;
-
- it->w = MIN(pr->tile_width, pr->width - it->x);
- it->h = MIN(pr->tile_height, pr->height - it->y);
- }
-}
-
-static void pr_tile_invalidate_region(PixbufRenderer *pr, gint x, gint y, gint w, gint h)
-{
- gint x1, x2;
- gint y1, y2;
- GList *work;
-
- x1 = ROUND_DOWN(x, pr->tile_width);
- x2 = ROUND_UP(x + w, pr->tile_width);
-
- y1 = ROUND_DOWN(y, pr->tile_height);
- y2 = ROUND_UP(y + h, pr->tile_height);
-
- work = pr->tiles;
- while (work)
- {
- ImageTile *it;
-
- it = work->data;
- work = work->next;
-
- if (it->x < x2 && it->x + it->w > x1 &&
- it->y < y2 && it->y + it->h > y1)
- {
- it->render_done = TILE_RENDER_NONE;
- it->render_todo = TILE_RENDER_ALL;
- }
- }
-}
-
-static ImageTile *pr_tile_get(PixbufRenderer *pr, gint x, gint y, gboolean only_existing)
-{
- GList *work;
-
- work = pr->tiles;
- while (work)
- {
- ImageTile *it;
-
- it = work->data;
- if (it->x == x && it->y == y)
- {
- pr->tiles = g_list_delete_link(pr->tiles, work);
- pr->tiles = g_list_prepend(pr->tiles, it);
- return it;
- }
-
- work = work->next;
- }
-
- if (only_existing) return NULL;
-
- return pr_tile_add(pr, x, y);
-}
-
-static void pr_tile_prepare(PixbufRenderer *pr, ImageTile *it)
-{
- if (!it->pixmap)
- {
- GdkPixmap *pixmap;
- guint size;
-
- pixmap = gdk_pixmap_new(((GtkWidget *)pr)->window, pr->tile_width, pr->tile_height, -1);
-
- size = pixmap_calc_size(pixmap);
- pr_tile_free_space(pr, size, it);
-
- it->pixmap = pixmap;
- it->size += size;
- pr->tile_cache_size += size;
- }
-
- if ((pr->zoom != 1.0 || pr->source_tiles_enabled || (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf)) ||
- pr->orientation != EXIF_ORIENTATION_TOP_LEFT || pr->func_post_process) && !it->pixbuf)
- {
- GdkPixbuf *pixbuf;
- guint size;
-#if 0
-/* I don't think that we need a pixbuf with alpha channel here */
- if (pr->pixbuf)
- {
- pixbuf = gdk_pixbuf_new(gdk_pixbuf_get_colorspace(pr->pixbuf),
- gdk_pixbuf_get_has_alpha(pr->pixbuf),
- gdk_pixbuf_get_bits_per_sample(pr->pixbuf),
- pr->tile_width, pr->tile_height);
- }
- else
-#endif
- {
- pixbuf = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
- }
-
- size = gdk_pixbuf_get_rowstride(pixbuf) * pr->tile_height;
- pr_tile_free_space(pr, size, it);
-
- it->pixbuf = pixbuf;
- it->size += size;
- pr->tile_cache_size += size;
- }
-}
-
-/*
- *-------------------------------------------------------------------
- * drawing
- *-------------------------------------------------------------------
- */
-
-
-static void pr_tile_coords_map_orientation(PixbufRenderer *pr,
- gdouble tile_x, gdouble tile_y, /* coordinates of the tile */
- gdouble image_w, gdouble image_h,
- gdouble tile_w, gdouble tile_h,
- gdouble *res_x, gdouble *res_y)
-{
- *res_x = tile_x;
- *res_y = tile_y;
- switch (pr->orientation)
- {
- case EXIF_ORIENTATION_TOP_LEFT:
- /* normal -- nothing to do */
- break;
- case EXIF_ORIENTATION_TOP_RIGHT:
- /* mirrored */
- *res_x = image_w - tile_x - tile_w;
- break;
- case EXIF_ORIENTATION_BOTTOM_RIGHT:
- /* upside down */
- *res_x = image_w - tile_x - tile_w;
- *res_y = image_h - tile_y - tile_h;
- break;
- case EXIF_ORIENTATION_BOTTOM_LEFT:
- /* flipped */
- *res_y = image_h - tile_y - tile_h;
- break;
- case EXIF_ORIENTATION_LEFT_TOP:
- *res_x = tile_y;
- *res_y = tile_x;
- break;
- case EXIF_ORIENTATION_RIGHT_TOP:
- /* rotated -90 (270) */
- *res_x = tile_y;
- *res_y = image_w - tile_x - tile_w;
- break;
- case EXIF_ORIENTATION_RIGHT_BOTTOM:
- *res_x = image_h - tile_y - tile_h;
- *res_y = image_w - tile_x - tile_w;
- break;
- case EXIF_ORIENTATION_LEFT_BOTTOM:
- /* rotated 90 */
- *res_x = image_h - tile_y - tile_h;
- *res_y = tile_x;
- break;
- default:
- /* The other values are out of range */
- break;
- }
-// log_printf("tile coord y:%f, ih:%d, th:%f ry:%f\n", tile_y, image_h, tile_h, *res_x);
-}
-
-static void pr_tile_region_map_orientation(PixbufRenderer *pr,
- gint area_x, gint area_y, /* coordinates of the area inside tile */
- gint tile_w, gint tile_h,
- gint area_w, gint area_h,
- gint *res_x, gint *res_y,
- gint *res_w, gint *res_h)
-{
- *res_x = area_x;
- *res_y = area_y;
- *res_w = area_w;
- *res_h = area_h;
-
- switch (pr->orientation)
- {
- case EXIF_ORIENTATION_TOP_LEFT:
- /* normal -- nothing to do */
- break;
- case EXIF_ORIENTATION_TOP_RIGHT:
- /* mirrored */
- *res_x = tile_w - area_x - area_w;
- break;
- case EXIF_ORIENTATION_BOTTOM_RIGHT:
- /* upside down */
- *res_x = tile_w - area_x - area_w;
- *res_y = tile_h - area_y - area_h;
- break;
- case EXIF_ORIENTATION_BOTTOM_LEFT:
- /* flipped */
- *res_y = tile_h - area_y - area_h;
- break;
- case EXIF_ORIENTATION_LEFT_TOP:
- *res_x = area_y;
- *res_y = area_x;
- *res_w = area_h;
- *res_h = area_w;
- break;
- case EXIF_ORIENTATION_RIGHT_TOP:
- /* rotated -90 (270) */
- *res_x = area_y;
- *res_y = tile_w - area_x - area_w;
- *res_w = area_h;
- *res_h = area_w;
- break;
- case EXIF_ORIENTATION_RIGHT_BOTTOM:
- *res_x = tile_h - area_y - area_h;
- *res_y = tile_w - area_x - area_w;
- *res_w = area_h;
- *res_h = area_w;
- break;
- case EXIF_ORIENTATION_LEFT_BOTTOM:
- /* rotated 90 */
- *res_x = tile_h - area_y - area_h;
- *res_y = area_x;
- *res_w = area_h;
- *res_h = area_w;
- break;
- default:
- /* The other values are out of range */
- break;
- }
-// log_printf("inside y:%d, th:%d, ah:%d ry:%d\n", area_y, tile_h, area_h, *res_x);
-}
-
-static void pr_coords_map_orientation_reverse(PixbufRenderer *pr,
- gint area_x, gint area_y,
- gint tile_w, gint tile_h,
- gint area_w, gint area_h,
- gint *res_x, gint *res_y,
- gint *res_w, gint *res_h)
-{
- *res_x = area_x;
- *res_y = area_y;
- *res_w = area_w;
- *res_h = area_h;
-
- switch (pr->orientation)
- {
- case EXIF_ORIENTATION_TOP_LEFT:
- /* normal -- nothing to do */
- break;
- case EXIF_ORIENTATION_TOP_RIGHT:
- /* mirrored */
- *res_x = tile_w - area_x - area_w;
- break;
- case EXIF_ORIENTATION_BOTTOM_RIGHT:
- /* upside down */
- *res_x = tile_w - area_x - area_w;
- *res_y = tile_h - area_y - area_h;
- break;
- case EXIF_ORIENTATION_BOTTOM_LEFT:
- /* flipped */
- *res_y = tile_h - area_y - area_h;
- break;
- case EXIF_ORIENTATION_LEFT_TOP:
- *res_x = area_y;
- *res_y = area_x;
- *res_w = area_h;
- *res_h = area_w;
- break;
- case EXIF_ORIENTATION_RIGHT_TOP:
- /* rotated -90 (270) */
- *res_x = tile_w - area_y - area_h;
- *res_y = area_x;
- *res_w = area_h;
- *res_h = area_w;
- break;
- case EXIF_ORIENTATION_RIGHT_BOTTOM:
- *res_x = tile_w - area_y - area_h;
- *res_y = tile_h - area_x - area_w;
- *res_w = area_h;
- *res_h = area_w;
- break;
- case EXIF_ORIENTATION_LEFT_BOTTOM:
- /* rotated 90 */
- *res_x = area_y;
- *res_y = tile_h - area_x - area_w;
- *res_w = area_h;
- *res_h = area_w;
- break;
- default:
- /* The other values are out of range */
- break;
- }
-}
-
-
-static GdkPixbuf *pr_get_spare_tile(PixbufRenderer *pr)
-{
- if (!pr->spare_tile) pr->spare_tile = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, pr->tile_width, pr->tile_height);
- return pr->spare_tile;
-}
-
-#define COLOR_BYTES 3 /* rgb */
-
-static void pr_tile_rotate_90_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
-{
- GdkPixbuf *src = *tile;
- GdkPixbuf *dest;
- gint srs, drs;
- guchar *s_pix, *d_pix;
- guchar *sp, *dp;
- guchar *ip, *spi, *dpi;
- gint i, j;
- gint tw = pr->tile_width;
-
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
- spi = s_pix + (x * COLOR_BYTES);
-
- dest = pr_get_spare_tile(pr);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
- dpi = d_pix + (tw - 1) * COLOR_BYTES;
-
- for (i = y; i < y + h; i++)
- {
- sp = spi + (i * srs);
- ip = dpi - (i * COLOR_BYTES);
- for (j = x; j < x + w; j++)
- {
- dp = ip + (j * drs);
- memcpy(dp, sp, COLOR_BYTES);
- sp += COLOR_BYTES;
- }
- }
-
- pr->spare_tile = src;
- *tile = dest;
-}
-
-static void pr_tile_rotate_90_counter_clockwise(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
-{
- GdkPixbuf *src = *tile;
- GdkPixbuf *dest;
- gint srs, drs;
- guchar *s_pix, *d_pix;
- guchar *sp, *dp;
- guchar *ip, *spi, *dpi;
- gint i, j;
- gint th = pr->tile_height;
-
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
- spi = s_pix + (x * COLOR_BYTES);
-
- dest = pr_get_spare_tile(pr);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
- dpi = d_pix + (th - 1) * drs;
-
- for (i = y; i < y + h; i++)
- {
- sp = spi + (i * srs);
- ip = dpi + (i * COLOR_BYTES);
- for (j = x; j < x + w; j++)
- {
- dp = ip - (j * drs);
- memcpy(dp, sp, COLOR_BYTES);
- sp += COLOR_BYTES;
- }
- }
-
- pr->spare_tile = src;
- *tile = dest;
-}
-
-static void pr_tile_mirror_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
-{
- GdkPixbuf *src = *tile;
- GdkPixbuf *dest;
- gint srs, drs;
- guchar *s_pix, *d_pix;
- guchar *sp, *dp;
- guchar *spi, *dpi;
- gint i, j;
-
- gint tw = pr->tile_width;
-
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
- spi = s_pix + (x * COLOR_BYTES);
-
- dest = pr_get_spare_tile(pr);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
- dpi = d_pix + (tw - x - 1) * COLOR_BYTES;
-
- for (i = y; i < y + h; i++)
- {
- sp = spi + (i * srs);
- dp = dpi + (i * drs);
- for (j = 0; j < w; j++)
- {
- memcpy(dp, sp, COLOR_BYTES);
- sp += COLOR_BYTES;
- dp -= COLOR_BYTES;
- }
- }
-
- pr->spare_tile = src;
- *tile = dest;
-}
-
-static void pr_tile_mirror_and_flip(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
-{
- GdkPixbuf *src = *tile;
- GdkPixbuf *dest;
- gint srs, drs;
- guchar *s_pix, *d_pix;
- guchar *sp, *dp;
- guchar *spi, *dpi;
- gint i, j;
- gint tw = pr->tile_width;
- gint th = pr->tile_height;
-
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
- spi = s_pix + (x * COLOR_BYTES);
-
- dest = pr_get_spare_tile(pr);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
- dpi = d_pix + (th - 1) * drs + (tw - 1) * COLOR_BYTES;
-
- for (i = y; i < y + h; i++)
- {
- sp = s_pix + (i * srs) + (x * COLOR_BYTES);
- dp = dpi - (i * drs) - (x * COLOR_BYTES);
- for (j = 0; j < w; j++)
- {
- memcpy(dp, sp, COLOR_BYTES);
- sp += COLOR_BYTES;
- dp -= COLOR_BYTES;
- }
- }
-
- pr->spare_tile = src;
- *tile = dest;
-}
-
-static void pr_tile_flip_only(PixbufRenderer *pr, GdkPixbuf **tile, gint x, gint y, gint w, gint h)
-{
- GdkPixbuf *src = *tile;
- GdkPixbuf *dest;
- gint srs, drs;
- guchar *s_pix, *d_pix;
- guchar *sp, *dp;
- guchar *spi, *dpi;
- gint i;
- gint th = pr->tile_height;
-
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
- spi = s_pix + (x * COLOR_BYTES);
-
- dest = pr_get_spare_tile(pr);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
- dpi = d_pix + (th - 1) * drs + (x * COLOR_BYTES);
-
- for (i = y; i < y + h; i++)
- {
- sp = spi + (i * srs);
- dp = dpi - (i * drs);
- memcpy(dp, sp, w * COLOR_BYTES);
- }
-
- pr->spare_tile = src;
- *tile = dest;
-}
-
-static void pr_tile_apply_orientation(PixbufRenderer *pr, GdkPixbuf **pixbuf, gint x, gint y, gint w, gint h)
-{
- switch (pr->orientation)
- {
- case EXIF_ORIENTATION_TOP_LEFT:
- /* normal -- nothing to do */
- break;
- case EXIF_ORIENTATION_TOP_RIGHT:
- /* mirrored */
- {
- pr_tile_mirror_only(pr, pixbuf, x, y, w, h);
- }
- break;
- case EXIF_ORIENTATION_BOTTOM_RIGHT:
- /* upside down */
- {
- pr_tile_mirror_and_flip(pr, pixbuf, x, y, w, h);
- }
- break;
- case EXIF_ORIENTATION_BOTTOM_LEFT:
- /* flipped */
- {
- pr_tile_flip_only(pr, pixbuf, x, y, w, h);
- }
- break;
- case EXIF_ORIENTATION_LEFT_TOP:
- {
- pr_tile_flip_only(pr, pixbuf, x, y, w, h);
- pr_tile_rotate_90_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
- }
- break;
- case EXIF_ORIENTATION_RIGHT_TOP:
- /* rotated -90 (270) */
- {
- pr_tile_rotate_90_clockwise(pr, pixbuf, x, y, w, h);
- }
- break;
- case EXIF_ORIENTATION_RIGHT_BOTTOM:
- {
- pr_tile_flip_only(pr, pixbuf, x, y, w, h);
- pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, pr->tile_height - y - h, w, h);
- }
- break;
- case EXIF_ORIENTATION_LEFT_BOTTOM:
- /* rotated 90 */
- {
- pr_tile_rotate_90_counter_clockwise(pr, pixbuf, x, y, w, h);
- }
- break;
- default:
- /* The other values are out of range */
- break;
- }
-}
-
-
-static void pr_tile_render(PixbufRenderer *pr, ImageTile *it,
- gint x, gint y, gint w, gint h,
- gboolean new_data, gboolean fast)
-{
- GtkWidget *box;
- gboolean has_alpha;
- gboolean draw = FALSE;
-
- if (it->render_todo == TILE_RENDER_NONE && it->pixmap && !new_data) return;
-
- if (it->render_done != TILE_RENDER_ALL)
- {
- x = 0;
- y = 0;
- w = it->w;
- h = it->h;
- if (!fast) it->render_done = TILE_RENDER_ALL;
- }
- else if (it->render_todo != TILE_RENDER_AREA)
- {
- if (!fast) it->render_todo = TILE_RENDER_NONE;
- return;
- }
-
- if (!fast) it->render_todo = TILE_RENDER_NONE;
-
- if (new_data) it->blank = FALSE;
-
- pr_tile_prepare(pr, it);
- has_alpha = (pr->pixbuf && gdk_pixbuf_get_has_alpha(pr->pixbuf));
-
- box = GTK_WIDGET(pr);
-
- /* FIXME checker colors for alpha should be configurable,
- * also should be drawn for blank = TRUE
- */
-
- if (it->blank)
- {
- /* no data, do fast rect fill */
- gdk_draw_rectangle(it->pixmap, box->style->black_gc, TRUE,
- 0, 0, it->w, it->h);
- }
- else if (pr->source_tiles_enabled)
- {
- draw = pr_source_tile_render(pr, it, x, y, w, h, new_data, fast);
- }
- else if (pr->zoom == 1.0 || pr->scale == 1.0)
- {
-
- gdouble src_x, src_y;
- gint pb_x, pb_y;
- gint pb_w, pb_h;
- pr_tile_coords_map_orientation(pr, it->x, it->y,
- pr->image_width, pr->image_height,
- pr->tile_width, pr->tile_height,
- &src_x, &src_y);
- pr_tile_region_map_orientation(pr, x, y,
- pr->tile_width, pr->tile_height,
- w, h,
- &pb_x, &pb_y,
- &pb_w, &pb_h);
-
- if (has_alpha)
- {
- gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
- (gdouble) 0.0 - src_x,
- (gdouble) 0.0 - src_y,
- 1.0, 1.0, GDK_INTERP_NEAREST,
- 255, it->x + pb_x, it->y + pb_y,
- PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
- pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
- draw = TRUE;
- }
- else
- {
-
-
- if (pr->orientation == EXIF_ORIENTATION_TOP_LEFT && !(pr->func_post_process && !(pr->post_process_slow && fast)))
- {
- /* faster, simple, base orientation, no postprocessing */
- gdk_draw_pixbuf(it->pixmap,
- box->style->fg_gc[GTK_WIDGET_STATE(box)],
- pr->pixbuf,
- it->x + x, it->y + y,
- x, y,
- w, h,
- pr->dither_quality, it->x + x, it->y + y);
- }
- else
- {
- gdk_pixbuf_copy_area(pr->pixbuf,
- src_x + pb_x, src_y + pb_y,
- pb_w, pb_h,
- it->pixbuf,
- pb_x, pb_y);
- pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
- draw = TRUE;
- }
- }
- }
- else
- {
- gdouble scale_x, scale_y;
- gdouble src_x, src_y;
- gint pb_x, pb_y;
- gint pb_w, pb_h;
-
- if (pr->image_width == 0 || pr->image_height == 0) return;
-
- scale_x = (gdouble)pr->width / pr->image_width;
- scale_y = (gdouble)pr->height / pr->image_height;
-
- pr_tile_coords_map_orientation(pr, it->x, it->y,
- pr->image_width * scale_x, pr->image_height * scale_y,
- pr->tile_width, pr->tile_height,
- &src_x, &src_y);
- pr_tile_region_map_orientation(pr, x, y,
- pr->tile_width, pr->tile_height,
- w, h,
- &pb_x, &pb_y,
- &pb_w, &pb_h);
- switch (pr->orientation)
- {
- gdouble tmp;
- case EXIF_ORIENTATION_LEFT_TOP:
- case EXIF_ORIENTATION_RIGHT_TOP:
- case EXIF_ORIENTATION_RIGHT_BOTTOM:
- case EXIF_ORIENTATION_LEFT_BOTTOM:
- tmp = scale_x;
- scale_x = scale_y;
- scale_y = tmp;
- break;
- default:
- /* nothing to do */
- break;
- }
-
- /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
- * small sizes for anything but GDK_INTERP_NEAREST
- */
- if (pr->width < PR_MIN_SCALE_SIZE || pr->height < PR_MIN_SCALE_SIZE) fast = TRUE;
-
- if (!has_alpha)
- {
- gdk_pixbuf_scale(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
- (gdouble) 0.0 - src_x,
- (gdouble) 0.0 - src_y,
- scale_x, scale_y,
- (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality);
- }
- else
- {
- gdk_pixbuf_composite_color(pr->pixbuf, it->pixbuf, pb_x, pb_y, pb_w, pb_h,
- (gdouble) 0.0 - src_x,
- (gdouble) 0.0 - src_y,
- scale_x, scale_y,
- (fast) ? GDK_INTERP_NEAREST : pr->zoom_quality,
- 255, it->x + pb_x, it->y + pb_y,
- PR_ALPHA_CHECK_SIZE, PR_ALPHA_CHECK1, PR_ALPHA_CHECK2);
- }
- pr_tile_apply_orientation(pr, &it->pixbuf, pb_x, pb_y, pb_w, pb_h);
- draw = TRUE;
- }
-
- if (draw && it->pixbuf && !it->blank)
- {
-
- if (pr->func_post_process && !(pr->post_process_slow && fast))
- pr->func_post_process(pr, &it->pixbuf, x, y, w, h, pr->post_process_user_data);
-
- gdk_draw_pixbuf(it->pixmap,
- box->style->fg_gc[GTK_WIDGET_STATE(box)],
- it->pixbuf,
- x, y,
- x, y,
- w, h,
- pr->dither_quality, it->x + x, it->y + y);
- }
-
-#if 0
- /* enable this line for debugging the edges of tiles */
- gdk_draw_rectangle(it->pixmap, box->style->white_gc,
- FALSE, 0, 0, it->w, it->h);
- gdk_draw_rectangle(it->pixmap, box->style->white_gc,
- FALSE, x, y, w, h);
-#endif
-}
-
-
-static void pr_tile_expose(PixbufRenderer *pr, ImageTile *it,
- gint x, gint y, gint w, gint h,
- gboolean new_data, gboolean fast)
-{
- GtkWidget *box;
-
- pr_tile_render(pr, it, x, y, w, h, new_data, fast);
-
- box = GTK_WIDGET(pr);
-
- gdk_draw_drawable(box->window, box->style->fg_gc[GTK_WIDGET_STATE(box)],
- it->pixmap, x, y,
- pr->x_offset + (it->x - pr->x_scroll) + x, pr->y_offset + (it->y - pr->y_scroll) + y, w, h);
-
- if (pr->overlay_list)
- {
- pr_overlay_draw(pr, pr->x_offset + (it->x - pr->x_scroll) + x,
- pr->y_offset + (it->y - pr->y_scroll) + y,
- w, h,
- it);
- }
-}
-
-
-static gboolean pr_tile_is_visible(PixbufRenderer *pr, ImageTile *it)
-{
- return (it->x + it->w >= pr->x_scroll && it->x < pr->x_scroll + pr->vis_width &&
- it->y + it->h >= pr->y_scroll && it->y < pr->y_scroll + pr->vis_height);
-}
-
-/*
- *-------------------------------------------------------------------
- * draw queue
- *-------------------------------------------------------------------
- */
-
-static gint pr_get_queued_area(GList *work)
-{
- gint area = 0;
-
- while (work)
- {
- QueueData *qd = work->data;
- area += qd->w * qd->h;
- work = work->next;
- }
- return area;
-}
-
-
-static gboolean pr_queue_schedule_next_draw(PixbufRenderer *pr, gboolean force_set)
-{
- gfloat percent;
- gint visible_area = pr->vis_width * pr->vis_height;
-
- if (!pr->loading)
- {
- /* 2pass prio */
- DEBUG_2("redraw priority: 2pass");
- pr->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE, pr_queue_draw_idle_cb, pr, NULL);
- return FALSE;
- }
-
- if (visible_area == 0)
- {
- /* not known yet */
- percent = 100.0;
- }
- else
- {
- percent = 100.0 * pr_get_queued_area(pr->draw_queue) / visible_area;
- }
-
- if (percent > 10.0)
- {
- /* we have enough data for starting intensive redrawing */
- DEBUG_2("redraw priority: high %.2f %%", percent);
- pr->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW, pr_queue_draw_idle_cb, pr, NULL);
- return FALSE;
- }
-
- if (percent < 1.0 || force_set)
- {
- /* queue is (almost) empty, wait 50 ms*/
- DEBUG_2("redraw priority: wait %.2f %%", percent);
- pr->draw_idle_id = g_timeout_add_full(G_PRIORITY_DEFAULT_IDLE, 50, pr_queue_draw_idle_cb, pr, NULL);
- return FALSE;
- }
-
- /* keep the same priority as before */
- DEBUG_2("redraw priority: no change %.2f %%", percent);
- return TRUE;
-}
-
-
-static gboolean pr_queue_draw_idle_cb(gpointer data)
-{
- PixbufRenderer *pr = data;
- QueueData *qd;
- gboolean fast;
-
-
- if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
- (!pr->draw_queue && !pr->draw_queue_2pass) ||
- !pr->draw_idle_id)
- {
- pr_render_complete_signal(pr);
-
- pr->draw_idle_id = 0;
- return FALSE;
- }
-
- if (pr->draw_queue)
- {
- qd = pr->draw_queue->data;
- fast = (pr->zoom_2pass && ((pr->zoom_quality != GDK_INTERP_NEAREST && pr->scale != 1.0) || pr->post_process_slow));
- }
- else
- {
- if (pr->loading)
- {
- /* still loading, wait till done (also drops the higher priority) */
-
- return pr_queue_schedule_next_draw(pr, FALSE);
- }
-
- qd = pr->draw_queue_2pass->data;
- fast = FALSE;
- }
-
- if (GTK_WIDGET_REALIZED(pr))
- {
- if (pr_tile_is_visible(pr, qd->it))
- {
- pr_tile_expose(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
- }
- else if (qd->new_data)
- {
- /* if new pixel data, and we already have a pixmap, update the tile */
- qd->it->blank = FALSE;
- if (qd->it->pixmap && qd->it->render_done == TILE_RENDER_ALL)
- {
- pr_tile_render(pr, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
- }
- }
- }
-
- if (pr->draw_queue)
- {
- qd->it->qd = NULL;
- pr->draw_queue = g_list_remove(pr->draw_queue, qd);
- if (fast)
- {
- if (qd->it->qd2)
- {
- pr_queue_merge(qd->it->qd2, qd);
- g_free(qd);
- }
- else
- {
- qd->it->qd2 = qd;
- pr->draw_queue_2pass = g_list_append(pr->draw_queue_2pass, qd);
- }
- }
- else
- {
- g_free(qd);
- }
- }
- else
- {
- qd->it->qd2 = NULL;
- pr->draw_queue_2pass = g_list_remove(pr->draw_queue_2pass, qd);
- g_free(qd);
- }
-
- if (!pr->draw_queue && !pr->draw_queue_2pass)
- {
- pr_render_complete_signal(pr);
-
- pr->draw_idle_id = 0;
- return FALSE;
- }
-
- return pr_queue_schedule_next_draw(pr, FALSE);
-}
-
-static void pr_queue_list_free(GList *list)
-{
- GList *work;
-
- work = list;
- while (work)
- {
- QueueData *qd;
-
- qd = work->data;
- work = work->next;
-
- qd->it->qd = NULL;
- qd->it->qd2 = NULL;
- g_free(qd);
- }
-
- g_list_free(list);
-}
-
-static void pr_queue_clear(PixbufRenderer *pr)
-{
- pr_queue_list_free(pr->draw_queue);
- pr->draw_queue = NULL;
-
- pr_queue_list_free(pr->draw_queue_2pass);
- pr->draw_queue_2pass = NULL;
-
- if (pr->draw_idle_id)
- {
- g_source_remove(pr->draw_idle_id);
- pr->draw_idle_id = 0;
- }
-}
-
-static void pr_queue_merge(QueueData *parent, QueueData *qd)
-{
- if (parent->x + parent->w < qd->x + qd->w)
- {
- parent->w += (qd->x + qd->w) - (parent->x + parent->w);
- }
- if (parent->x > qd->x)
- {
- parent->w += parent->x - qd->x;
- parent->x = qd->x;
- }
-
- if (parent->y + parent->h < qd->y + qd->h)
- {
- parent->h += (qd->y + qd->h) - (parent->y + parent->h);
- }
- if (parent->y > qd->y)
- {
- parent->h += parent->y - qd->y;
- parent->y = qd->y;
- }
-
- parent->new_data |= qd->new_data;
-}
-
-static gboolean pr_clamp_to_visible(PixbufRenderer *pr, gint *x, gint *y, gint *w, gint *h)
-{
- gint nx, ny;
- gint nw, nh;
- gint vx, vy;
- gint vw, vh;
-
- vw = pr->vis_width;
- vh = pr->vis_height;
-
- vx = pr->x_scroll;
- vy = pr->y_scroll;
-
- if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
-
- /* now clamp it */
- nx = CLAMP(*x, vx, vx + vw);
- nw = CLAMP(*w - (nx - *x), 1, vw);
-
- ny = CLAMP(*y, vy, vy + vh);
- nh = CLAMP(*h - (ny - *y), 1, vh);
-
- *x = nx;
- *y = ny;
- *w = nw;
- *h = nh;
-
- return TRUE;
-}
-
-static gboolean pr_queue_to_tiles(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
- gboolean clamp, ImageTileRenderType render,
- gboolean new_data, gboolean only_existing)
-{
- gint i, j;
- gint x1, x2;
- gint y1, y2;
-
- if (clamp && !pr_clamp_to_visible(pr, &x, &y, &w, &h)) return FALSE;
-
- x1 = ROUND_DOWN(x, pr->tile_width);
- x2 = ROUND_UP(x + w, pr->tile_width);
-
- y1 = ROUND_DOWN(y, pr->tile_height);
- y2 = ROUND_UP(y + h, pr->tile_height);
-
- for (j = y1; j <= y2; j += pr->tile_height)
- {
- for (i = x1; i <= x2; i += pr->tile_width)
- {
- ImageTile *it;
-
- it = pr_tile_get(pr, i, j,
- (only_existing &&
- (i + pr->tile_width < pr->x_scroll ||
- i > pr->x_scroll + pr->vis_width ||
- j + pr->tile_height < pr->y_scroll ||
- j > pr->y_scroll + pr->vis_height)));
- if (it)
- {
- QueueData *qd;
-
- if ((render == TILE_RENDER_ALL && it->render_done != TILE_RENDER_ALL) ||
- (render == TILE_RENDER_AREA && it->render_todo != TILE_RENDER_ALL))
- {
- it->render_todo = render;
- }
-
- qd = g_new(QueueData, 1);
- qd->it = it;
- qd->new_data = new_data;
-
- if (i < x)
- {
- qd->x = x - i;
- }
- else
- {
- qd->x = 0;
- }
- qd->w = x + w - i - qd->x;
- if (qd->x + qd->w > pr->tile_width) qd->w = pr->tile_width - qd->x;
-
- if (j < y)
- {
- qd->y = y - j;
- }
- else
- {
- qd->y = 0;
- }
- qd->h = y + h - j - qd->y;
- if (qd->y + qd->h > pr->tile_height) qd->h = pr->tile_height - qd->y;
-
- if (qd->w < 1 || qd->h < 1)
- {
- g_free(qd);
- }
- else if (it->qd)
- {
- pr_queue_merge(it->qd, qd);
- g_free(qd);
- }
- else
- {
- it->qd = qd;
- pr->draw_queue = g_list_append(pr->draw_queue, qd);
- }
- }
- }
- }
-
- return TRUE;
-}
-
-static void pr_queue(PixbufRenderer *pr, gint x, gint y, gint w, gint h,
- gboolean clamp, ImageTileRenderType render,
- gboolean new_data, gboolean only_existing)
-{
- gint nx, ny;
-
- nx = CLAMP(x, 0, pr->width - 1);
- ny = CLAMP(y, 0, pr->height - 1);
- w -= (nx - x);
- h -= (ny - y);
- w = CLAMP(w, 0, pr->width - nx);
- h = CLAMP(h, 0, pr->height - ny);
- if (w < 1 || h < 1) return;
-
- if (pr_queue_to_tiles(pr, nx, ny, w, h, clamp, render, new_data, only_existing) &&
- ((!pr->draw_queue && !pr->draw_queue_2pass) || !pr->draw_idle_id))
- {
- if (pr->draw_idle_id)
- {
- g_source_remove(pr->draw_idle_id);
- pr->draw_idle_id = 0;
- }
- pr_queue_schedule_next_draw(pr, TRUE);
- }
-}
-
-static void pr_redraw(PixbufRenderer *pr, gboolean new_data)
-{
- pr_queue_clear(pr);
- pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, new_data, FALSE);
-}
-
-/*
- *-------------------------------------------------------------------
- * signal emission
- *-------------------------------------------------------------------
- */
-
-static void pr_update_signal(PixbufRenderer *pr)
-{
-#if 0
- log_printf("FIXME: send updated signal\n");
-#endif
- DEBUG_1("%s pixbuf renderer updated - started drawing %p", get_exec_time(), pr);
- pr->debug_updated = TRUE;
-}
-
-static void pr_zoom_signal(PixbufRenderer *pr)
-{
- g_signal_emit(pr, signals[SIGNAL_ZOOM], 0, pr->zoom);
-}
-
-static void pr_clicked_signal(PixbufRenderer *pr, GdkEventButton *bevent)
-{
- g_signal_emit(pr, signals[SIGNAL_CLICKED], 0, bevent);
-}
-
-static void pr_scroll_notify_signal(PixbufRenderer *pr)
-{
- g_signal_emit(pr, signals[SIGNAL_SCROLL_NOTIFY], 0);
-}
-
-static void pr_render_complete_signal(PixbufRenderer *pr)
-{
- if (!pr->complete)
- {
- g_signal_emit(pr, signals[SIGNAL_RENDER_COMPLETE], 0);
- g_object_set(G_OBJECT(pr), "complete", TRUE, NULL);
- }
- if (pr->debug_updated)
- {
- DEBUG_1("%s pixbuf renderer done %p", get_exec_time(), pr);
- pr->debug_updated = FALSE;
- }
-}
-
-static void pr_drag_signal(PixbufRenderer *pr, GdkEventButton *bevent)
-{
- g_signal_emit(pr, signals[SIGNAL_DRAG], 0, bevent);
-}
-
-static void pr_update_pixel_signal(PixbufRenderer *pr)
-{
- g_signal_emit(pr, signals[SIGNAL_UPDATE_PIXEL], 0);
-}
-
-/*
- *-------------------------------------------------------------------
- * sync and clamp
- *-------------------------------------------------------------------
- */
-
-static void pixbuf_renderer_sync_scroll_center(PixbufRenderer *pr)
-{
- gint src_x, src_y;
- if (!pr->width || !pr->height) return;
-
- /*
- * Update norm_center only if the image is bigger than the window.
- * With this condition the stored center survives also a temporary display
- * of the "broken image" icon.
- */
-
- if (pr->width > pr->window_width)
- {
- src_x = pr->x_scroll + pr->vis_width / 2;
- pr->norm_center_x = (gdouble)src_x / pr->width;
- }
-
- if (pr->height > pr->window_height)
- {
- src_y = pr->y_scroll + pr->vis_height / 2;
- pr->norm_center_y = (gdouble)src_y / pr->height;
- }
-}
-
-
-static gboolean pr_scroll_clamp(PixbufRenderer *pr)
-{
- gint old_xs;
- gint old_ys;
-
- if (pr->zoom == 0.0)
- {
- pr->x_scroll = 0;
- pr->y_scroll = 0;
-
- return FALSE;
- }
-
- old_xs = pr->x_scroll;
- old_ys = pr->y_scroll;
-
- if (pr->x_offset > 0)
- {
- pr->x_scroll = 0;
- }
- else
- {
- pr->x_scroll = CLAMP(pr->x_scroll, 0, pr->width - pr->vis_width);
- }
-
- if (pr->y_offset > 0)
- {
- pr->y_scroll = 0;
- }
- else
- {
- pr->y_scroll = CLAMP(pr->y_scroll, 0, pr->height - pr->vis_height);
- }
-
- pixbuf_renderer_sync_scroll_center(pr);
-
- return (old_xs != pr->x_scroll || old_ys != pr->y_scroll);
-}
-
-static gboolean pr_size_clamp(PixbufRenderer *pr)
-{
- gint old_vw, old_vh;
-
- old_vw = pr->vis_width;
- old_vh = pr->vis_height;
-
- if (pr->width < pr->window_width)
- {
- pr->vis_width = pr->width;
- pr->x_offset = (pr->window_width - pr->width) / 2;
- }
- else
- {
- pr->vis_width = pr->window_width;
- pr->x_offset = 0;
- }
-
- if (pr->height < pr->window_height)
- {
- pr->vis_height = pr->height;
- pr->y_offset = (pr->window_height - pr->height) / 2;
- }
- else
- {
- pr->vis_height = pr->window_height;
- pr->y_offset = 0;
- }
-
- pixbuf_renderer_sync_scroll_center(pr);
-
- return (old_vw != pr->vis_width || old_vh != pr->vis_height);
-}
-
-static gboolean pr_zoom_clamp(PixbufRenderer *pr, gdouble zoom,
- PrZoomFlags flags, gboolean *redrawn)
-{
- gint w, h;
- gdouble scale;
- gboolean invalid;
- gboolean force = !!(flags & PR_ZOOM_FORCE);
- gboolean new = !!(flags & PR_ZOOM_NEW);
- gboolean invalidate = !!(flags & PR_ZOOM_INVALIDATE);
- gboolean lazy = !!(flags & PR_ZOOM_LAZY);
-
- zoom = CLAMP(zoom, pr->zoom_min, pr->zoom_max);
-
- if (pr->zoom == zoom && !force) return FALSE;
-
- w = pr->image_width;
- h = pr->image_height;
-
- if (zoom == 0.0 && !pr->pixbuf)
- {
- scale = 1.0;
- }
- else if (zoom == 0.0)
- {
- gint max_w;
- gint max_h;
- gboolean sizeable;
-
- sizeable = (new && pr_parent_window_sizable(pr));
-
- if (sizeable)
- {
- max_w = gdk_screen_width();
- max_h = gdk_screen_height();
-
- if (pr->window_limit)
- {
- max_w = max_w * pr->window_limit_size / 100;
- max_h = max_h * pr->window_limit_size / 100;
- }
- }
- else
- {
- max_w = pr->window_width;
- max_h = pr->window_height;
- }
-
- if ((pr->zoom_expand && !sizeable) || w > max_w || h > max_h)
- {
- if ((gdouble)max_w / w > (gdouble)max_h / h)
- {
- scale = (gdouble)max_h / h;
- h = max_h;
- w = w * scale + 0.5;
- if (w > max_w) w = max_w;
- }
- else
- {
- scale = (gdouble)max_w / w;
- w = max_w;
- h = h * scale + 0.5;
- if (h > max_h) h = max_h;
- }
-
- if (pr->autofit_limit)
- {
- gdouble factor = (gdouble)pr->autofit_limit_size / 100;
- w = w * factor + 0.5;
- h = h * factor + 0.5;
- scale = scale * factor;
- }
-
- if (w < 1) w = 1;
- if (h < 1) h = 1;
- }
- else
- {
- scale = 1.0;
- }
- }
- else if (zoom > 0.0) /* zoom orig, in */
- {
- scale = zoom;
- w = w * scale;
- h = h * scale;
- }
- else /* zoom out */
- {
- scale = 1.0 / (0.0 - zoom);
- w = w * scale;
- h = h * scale;
- }
-
- invalid = (pr->width != w || pr->height != h);
-
- pr->zoom = zoom;
- pr->width = w;
- pr->height = h;
- pr->scale = scale;
-
- if (invalidate || invalid)
- {
- pr_tile_invalidate_all(pr);
- if (!lazy) pr_redraw(pr, TRUE);
- }
- if (redrawn) *redrawn = (invalidate || invalid);
-
- pixbuf_renderer_sync_scroll_center(pr);
-
- return TRUE;
-}
-
-static void pr_zoom_sync(PixbufRenderer *pr, gdouble zoom,
- PrZoomFlags flags, gint px, gint py)
-{
- gdouble old_scale;
- gint old_cx, old_cy;
- gboolean clamped;
- gboolean sized;
- gboolean redrawn = FALSE;
- gboolean center_point = !!(flags & PR_ZOOM_CENTER);
- gboolean force = !!(flags & PR_ZOOM_FORCE);
- gboolean new = !!(flags & PR_ZOOM_NEW);
- gboolean lazy = !!(flags & PR_ZOOM_LAZY);
- PrZoomFlags clamp_flags = flags;
- gdouble old_center_x = pr->norm_center_x;
- gdouble old_center_y = pr->norm_center_y;
-
- old_scale = pr->scale;
- if (center_point)
- {
- px = CLAMP(px, 0, pr->width);
- py = CLAMP(py, 0, pr->height);
- old_cx = pr->x_scroll + (px - pr->x_offset);
- old_cy = pr->y_scroll + (py - pr->y_offset);
- }
- else
- {
- px = py = 0;
- old_cx = pr->x_scroll + pr->vis_width / 2;
- old_cy = pr->y_scroll + pr->vis_height / 2;
- }
-
- if (force) clamp_flags |= PR_ZOOM_INVALIDATE;
- if (lazy) clamp_flags |= PR_ZOOM_LAZY;
- if (!pr_zoom_clamp(pr, zoom, clamp_flags, &redrawn)) return;
-
- clamped = pr_size_clamp(pr);
- sized = pr_parent_window_resize(pr, pr->width, pr->height);
-
- if (force && new)
- {
- switch (pr->scroll_reset)
- {
- case PR_SCROLL_RESET_NOCHANGE:
- /* maintain old scroll position */
- pr->x_scroll = ((gdouble)pr->image_width * old_center_x * pr->scale) - pr->vis_width / 2;
- pr->y_scroll = ((gdouble)pr->image_height * old_center_y * pr->scale) - pr->vis_height / 2;
- break;
- case PR_SCROLL_RESET_CENTER:
- /* center new image */
- pr->x_scroll = ((gdouble)pr->image_width / 2.0 * pr->scale) - pr->vis_width / 2;
- pr->y_scroll = ((gdouble)pr->image_height / 2.0 * pr->scale) - pr->vis_height / 2;
- break;
- case PR_SCROLL_RESET_TOPLEFT:
- default:
- /* reset to upper left */
- pr->x_scroll = 0;
- pr->y_scroll = 0;
- break;
- }
- }
- else
- {
- /* user zoom does not force, so keep visible center point */
- if (center_point)
- {
- pr->x_scroll = old_cx / old_scale * pr->scale - (px - pr->x_offset);
- pr->y_scroll = old_cy / old_scale * pr->scale - (py - pr->y_offset);
- }
- else
- {
- pr->x_scroll = old_cx / old_scale * pr->scale - (pr->vis_width / 2);
- pr->y_scroll = old_cy / old_scale * pr->scale - (pr->vis_height / 2);
- }
- }
-
- pr_scroll_clamp(pr);
-
- /* If the window was not sized, redraw the image - we know there will be no size/expose signal.
- * But even if a size is claimed, there is no guarantee that the window manager will allow it,
- * so redraw the window anyway :/
- */
- if (sized || clamped) pr_border_clear(pr);
-
- if (lazy)
- {
- pr_queue_clear(pr);
- }
- else
- {
- pr_redraw(pr, redrawn);
- }
-
- pr_scroll_notify_signal(pr);
- pr_zoom_signal(pr);
- pr_update_signal(pr);
-}
-
-static void pr_size_sync(PixbufRenderer *pr, gint new_width, gint new_height)
-{
- gboolean zoom_changed = FALSE;
-
- if (pr->window_width == new_width && pr->window_height == new_height) return;
-
- pr->window_width = new_width;
- pr->window_height = new_height;
-
- if (pr->zoom == 0.0)
- {
- gdouble old_scale = pr->scale;
- pr_zoom_clamp(pr, 0.0, PR_ZOOM_FORCE, NULL);
- zoom_changed = (old_scale != pr->scale);
- }
-
- pr_size_clamp(pr);
- pr_scroll_clamp(pr);
-
- pr_overlay_update_sizes(pr);
-
- /* ensure scroller remains visible */
- if (pr->scroller_overlay != -1)
- {
- gboolean update = FALSE;
-
- if (pr->scroller_x > new_width)
- {
- pr->scroller_x = new_width;
- pr->scroller_xpos = new_width;
- update = TRUE;
- }
- if (pr->scroller_y > new_height)
- {
- pr->scroller_y = new_height;
- pr->scroller_ypos = new_height;
- update = TRUE;
- }
-
- if (update)
- {
- GdkPixbuf *pixbuf;
-
- if (pixbuf_renderer_overlay_get(pr, pr->scroller_overlay, &pixbuf, NULL, NULL))
- {
- gint w, h;
-
- w = gdk_pixbuf_get_width(pixbuf);
- h = gdk_pixbuf_get_height(pixbuf);
- pixbuf_renderer_overlay_set(pr, pr->scroller_overlay, pixbuf,
- pr->scroller_x - w / 2, pr->scroller_y - h / 2);
- }
- }
- }
-
- pr_border_clear(pr);
-
- pr_scroll_notify_signal(pr);
- if (zoom_changed) pr_zoom_signal(pr);
- pr_update_signal(pr);
-}
-
-static void pr_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
-{
- PixbufRenderer *pr = data;
-
- pr_size_sync(pr, allocation->width, allocation->height);
-}
-
-static void pixbuf_renderer_paint(PixbufRenderer *pr, GdkRectangle *area)
-{
- gint x, y;
-
- pr_border_draw(pr, area->x, area->y, area->width, area->height);
-
- x = MAX(0, (gint)area->x - pr->x_offset + pr->x_scroll);
- y = MAX(0, (gint)area->y - pr->y_offset + pr->y_scroll);
-
- pr_queue(pr, x, y,
- MIN((gint)area->width, pr->width - x),
- MIN((gint)area->height, pr->height - y),
- FALSE, TILE_RENDER_ALL, FALSE, FALSE);
-}
-
-/*
- *-------------------------------------------------------------------
- * scrolling
- *-------------------------------------------------------------------
- */
-
-void pixbuf_renderer_scroll(PixbufRenderer *pr, gint x, gint y)
-{
- gint old_x, old_y;
- gint x_off, y_off;
- gint w, h;
-
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- if (!pr->pixbuf && !pr->source_tiles_enabled) return;
-
- old_x = pr->x_scroll;
- old_y = pr->y_scroll;
-
- pr->x_scroll += x;
- pr->y_scroll += y;
-
- pr_scroll_clamp(pr);
-
- pixbuf_renderer_sync_scroll_center(pr);
-
- if (pr->x_scroll == old_x && pr->y_scroll == old_y) return;
-
- pr_scroll_notify_signal(pr);
-
- x_off = pr->x_scroll - old_x;
- y_off = pr->y_scroll - old_y;
-
- w = pr->vis_width - abs(x_off);
- h = pr->vis_height - abs(y_off);
-
- if (w < 1 || h < 1)
- {
- /* scrolled completely to new material */
- pr_queue(pr, 0, 0, pr->width, pr->height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
- return;
- }
- else
- {
- gint x1, y1;
- gint x2, y2;
- GtkWidget *box;
- GdkGC *gc;
- GdkEvent *event;
-
- if (x_off < 0)
- {
- x1 = abs(x_off);
- x2 = 0;
- }
- else
- {
- x1 = 0;
- x2 = abs(x_off);
- }
-
- if (y_off < 0)
- {
- y1 = abs(y_off);
- y2 = 0;
- }
- else
- {
- y1 = 0;
- y2 = abs(y_off);
- }
-
- box = GTK_WIDGET(pr);
-
- gc = gdk_gc_new(box->window);
- gdk_gc_set_exposures(gc, TRUE);
- gdk_draw_drawable(box->window, gc,
- box->window,
- x2 + pr->x_offset, y2 + pr->y_offset,
- x1 + pr->x_offset, y1 + pr->y_offset, w, h);
- g_object_unref(gc);
-
- if (pr->overlay_list)
- {
- pr_overlay_queue_all(pr);
- }
-
- w = pr->vis_width - w;
- h = pr->vis_height - h;
-
- if (w > 0)
- {
- pr_queue(pr,
- x_off > 0 ? pr->x_scroll + (pr->vis_width - w) : pr->x_scroll, pr->y_scroll,
- w, pr->vis_height, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
- }
- if (h > 0)
- {
- /* FIXME, to optimize this, remove overlap */
- pr_queue(pr,
- pr->x_scroll, y_off > 0 ? pr->y_scroll + (pr->vis_height - h) : pr->y_scroll,
- pr->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE, FALSE);
- }
-
- /* process exposures here, "expose_event" seems to miss a few with obstructed windows */
- while ((event = gdk_event_get_graphics_expose(box->window)) != NULL)
- {
- pixbuf_renderer_paint(pr, &event->expose.area);
-
- if (event->expose.count == 0)
- {
- gdk_event_free(event);
- break;
- }
- gdk_event_free(event);
- }
- }
-}
-
-void pixbuf_renderer_scroll_to_point(PixbufRenderer *pr, gint x, gint y,
- gdouble x_align, gdouble y_align)
-{
- gint px, py;
- gint ax, ay;
-
- x_align = CLAMP(x_align, 0.0, 1.0);
- y_align = CLAMP(y_align, 0.0, 1.0);
-
- ax = (gdouble)pr->vis_width * x_align;
- ay = (gdouble)pr->vis_height * y_align;
-
- px = (gdouble)x * pr->scale - (pr->x_scroll + ax);
- py = (gdouble)y * pr->scale - (pr->y_scroll + ay);
-
- pixbuf_renderer_scroll(pr, px, py);
-}
-
-/* get or set coordinates of viewport center in the image, in range 0.0 - 1.0 */
-
-void pixbuf_renderer_get_scroll_center(PixbufRenderer *pr, gdouble *x, gdouble *y)
-{
- *x = pr->norm_center_x;
- *y = pr->norm_center_y;
-}
-
-void pixbuf_renderer_set_scroll_center(PixbufRenderer *pr, gdouble x, gdouble y)
-{
- gdouble dst_x, dst_y;
-
- dst_x = x * pr->width - pr->vis_width / 2 - pr->x_scroll + CLAMP(pr->subpixel_x_scroll, -1.0, 1.0);
- dst_y = y * pr->height - pr->vis_height / 2 - pr->y_scroll + CLAMP(pr->subpixel_y_scroll, -1.0, 1.0);
-
- pr->subpixel_x_scroll = dst_x - (gint)dst_x;
- pr->subpixel_y_scroll = dst_y - (gint)dst_y;
-
- pixbuf_renderer_scroll(pr, (gint)dst_x, (gint)dst_y);
-}
-
-/*
- *-------------------------------------------------------------------
- * mouse
- *-------------------------------------------------------------------
- */
-
-static gboolean pr_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
-{
- PixbufRenderer *pr;
- gint accel;
-
- pr = PIXBUF_RENDERER(widget);
-
- if (pr->scroller_id)
- {
- pr->scroller_xpos = bevent->x;
- pr->scroller_ypos = bevent->y;
- }
-
- pr->x_mouse = bevent->x;
- pr->y_mouse = bevent->y;
- pr_update_pixel_signal(pr);
-
- if (!pr->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
-
- if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
- {
- pr->drag_moved++;
- }
- else
- {
- widget_set_cursor(widget, GDK_FLEUR);
- }
-
- if (bevent->state & GDK_CONTROL_MASK)
- {
- accel = PR_PAN_SHIFT_MULTIPLIER;
- }
- else
- {
- accel = 1;
- }
-
- /* do the scroll */
- pixbuf_renderer_scroll(pr, (pr->drag_last_x - bevent->x) * accel,
- (pr->drag_last_y - bevent->y) * accel);
-
- pr_drag_signal(pr, bevent);
-
- pr->drag_last_x = bevent->x;
- pr->drag_last_y = bevent->y;
-
- return FALSE;
-}
-
-static gboolean pr_leave_notify_cb(GtkWidget *widget, GdkEventCrossing *cevent, gpointer data)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(widget);
- pr->x_mouse = -1;
- pr->y_mouse = -1;
-
- pr_update_pixel_signal(pr);
- return FALSE;
-}
-
-static gboolean pr_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
-{
- PixbufRenderer *pr;
- GtkWidget *parent;
-
- pr = PIXBUF_RENDERER(widget);
-
- if (pr->scroller_id) return TRUE;
-
- switch (bevent->button)
- {
- case MOUSE_BUTTON_LEFT:
- pr->in_drag = TRUE;
- pr->drag_last_x = bevent->x;
- pr->drag_last_y = bevent->y;
- pr->drag_moved = 0;
- gdk_pointer_grab(widget->window, FALSE,
- GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
- NULL, NULL, bevent->time);
- gtk_grab_add(widget);
- break;
- case MOUSE_BUTTON_MIDDLE:
- pr->drag_moved = 0;
- break;
- case MOUSE_BUTTON_RIGHT:
- pr_clicked_signal(pr, bevent);
- break;
- default:
- break;
- }
-
- parent = gtk_widget_get_parent(widget);
- if (widget && GTK_WIDGET_CAN_FOCUS(parent))
- {
- gtk_widget_grab_focus(parent);
- }
-
- return FALSE;
-}
-
-static gboolean pr_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(widget);
-
- if (pr->scroller_id)
- {
- pr_scroller_stop(pr);
- return TRUE;
- }
-
- if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(pr))
- {
- gtk_grab_remove(widget);
- gdk_pointer_ungrab(bevent->time);
- widget_set_cursor(widget, -1);
- }
-
- if (pr->drag_moved < PR_DRAG_SCROLL_THRESHHOLD)
- {
- if (bevent->button == MOUSE_BUTTON_LEFT && (bevent->state & GDK_CONTROL_MASK))
- {
- pr_scroller_start(pr, bevent->x, bevent->y);
- }
- else if (bevent->button == MOUSE_BUTTON_LEFT || bevent->button == MOUSE_BUTTON_MIDDLE)
- {
- pr_clicked_signal(pr, bevent);
- }
- }
-
- pr->in_drag = FALSE;
-
- return FALSE;
-}
-
-static gboolean pr_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(widget);
-
- if (pr->scroller_id)
- {
- pr->scroller_xpos = pr->scroller_x;
- pr->scroller_ypos = pr->scroller_y;
- pr->scroller_xinc = 0;
- pr->scroller_yinc = 0;
- }
-
- return FALSE;
-}
-
-static void pr_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
-{
- PixbufRenderer *pr;
-
- pr = PIXBUF_RENDERER(widget);
-
- pr->drag_moved = PR_DRAG_SCROLL_THRESHHOLD;
-}
-
-static void pr_signals_connect(PixbufRenderer *pr)
-{
- g_signal_connect(G_OBJECT(pr), "motion_notify_event",
- G_CALLBACK(pr_mouse_motion_cb), pr);
- g_signal_connect(G_OBJECT(pr), "button_press_event",
- G_CALLBACK(pr_mouse_press_cb), pr);
- g_signal_connect(G_OBJECT(pr), "button_release_event",
- G_CALLBACK(pr_mouse_release_cb), pr);
- g_signal_connect(G_OBJECT(pr), "leave_notify_event",
- G_CALLBACK(pr_mouse_leave_cb), pr);
- g_signal_connect(G_OBJECT(pr), "hierarchy-changed",
- G_CALLBACK(pr_hierarchy_changed_cb), pr);
- g_signal_connect(G_OBJECT(pr), "leave_notify_event",
- G_CALLBACK(pr_leave_notify_cb), pr);
-
- gtk_widget_set_events(GTK_WIDGET(pr), GDK_POINTER_MOTION_MASK |
- GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
- GDK_LEAVE_NOTIFY_MASK);
-
- g_signal_connect(G_OBJECT(pr), "drag_begin",
- G_CALLBACK(pr_mouse_drag_cb), pr);
-
-}
-
-/*
- *-------------------------------------------------------------------
- * public
- *-------------------------------------------------------------------
- */
-static void pr_pixbuf_size_sync(PixbufRenderer *pr)
-{
- if (!pr->pixbuf) return;
- switch (pr->orientation)
- {
- case EXIF_ORIENTATION_LEFT_TOP:
- case EXIF_ORIENTATION_RIGHT_TOP:
- case EXIF_ORIENTATION_RIGHT_BOTTOM:
- case EXIF_ORIENTATION_LEFT_BOTTOM:
- pr->image_width = gdk_pixbuf_get_height(pr->pixbuf);
- pr->image_height = gdk_pixbuf_get_width(pr->pixbuf);
- break;
- default:
- pr->image_width = gdk_pixbuf_get_width(pr->pixbuf);
- pr->image_height = gdk_pixbuf_get_height(pr->pixbuf);
- }
-}
-
-static void pr_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, PrZoomFlags flags)
-{
- if (pixbuf) g_object_ref(pixbuf);
- if (pr->pixbuf) g_object_unref(pr->pixbuf);
- pr->pixbuf = pixbuf;
-
- if (!pr->pixbuf)
- {
- GtkWidget *box;
-
- /* no pixbuf so just clear the window */
- pr->image_width = 0;
- pr->image_height = 0;
- pr->scale = 1.0;
- pr->zoom = zoom; /* don't throw away the zoom value, it is set by pixbuf_renderer_move, among others,
- and used for pixbuf_renderer_zoom_get */
-
- box = GTK_WIDGET(pr);
-
- if (GTK_WIDGET_REALIZED(box))
- {
- gdk_window_clear(box->window);
- pr_overlay_draw(pr, 0, 0, pr->window_width, pr->window_height, NULL);
- }
-
- pr_update_signal(pr);
-
- return;
- }
-
- pr_pixbuf_size_sync(pr);
- pr_zoom_sync(pr, zoom, flags | PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
-}
-
-void pixbuf_renderer_set_pixbuf(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr_source_tile_unset(pr);
-
- pr_set_pixbuf(pr, pixbuf, zoom, 0);
-
- pr_update_signal(pr);
-}
-
-void pixbuf_renderer_set_pixbuf_lazy(PixbufRenderer *pr, GdkPixbuf *pixbuf, gdouble zoom, gint orientation)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr_source_tile_unset(pr);
-
- pr->orientation = orientation;
- pr_set_pixbuf(pr, pixbuf, zoom, PR_ZOOM_LAZY);
-
- pr_update_signal(pr);
-}
-
-GdkPixbuf *pixbuf_renderer_get_pixbuf(PixbufRenderer *pr)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), NULL);
-
- return pr->pixbuf;
-}
-
-void pixbuf_renderer_set_orientation(PixbufRenderer *pr, gint orientation)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr->orientation = orientation;
-
- pr_pixbuf_size_sync(pr);
- pr_zoom_sync(pr, pr->zoom, PR_ZOOM_FORCE, 0, 0);
-}
-
-gint pixbuf_renderer_get_orientation(PixbufRenderer *pr)
-{
- if (!pr) return 1;
- return pr->orientation;
-}
-
-void pixbuf_renderer_set_post_process_func(PixbufRenderer *pr, PixbufRendererPostProcessFunc func, gpointer user_data, gboolean slow)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr->func_post_process = func;
- pr->post_process_user_data = user_data;
- pr->post_process_slow = func && slow;
-
-}
-
-
-void pixbuf_renderer_move(PixbufRenderer *pr, PixbufRenderer *source)
-{
- GObject *object;
- PixbufRendererScrollResetType scroll_reset;
-
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
- g_return_if_fail(IS_PIXBUF_RENDERER(source));
-
- if (pr == source) return;
-
- object = G_OBJECT(pr);
-
- g_object_set(object, "zoom_min", source->zoom_min, NULL);
- g_object_set(object, "zoom_max", source->zoom_max, NULL);
- g_object_set(object, "loading", source->loading, NULL);
-
- pr->complete = source->complete;
-
- pr->x_scroll = source->x_scroll;
- pr->y_scroll = source->y_scroll;
- pr->x_mouse = source->x_mouse;
- pr->y_mouse = source->y_mouse;
-
- scroll_reset = pr->scroll_reset;
- pr->scroll_reset = PR_SCROLL_RESET_NOCHANGE;
-
- pr->func_post_process = source->func_post_process;
- pr->post_process_user_data = source->post_process_user_data;
- pr->post_process_slow = source->post_process_slow;
- pr->orientation = source->orientation;
-
- if (source->source_tiles_enabled)
- {
- pr_source_tile_unset(pr);
-
- pr->source_tiles_enabled = source->source_tiles_enabled;
- pr->source_tiles_cache_size = source->source_tiles_cache_size;
- pr->source_tile_width = source->source_tile_width;
- pr->source_tile_height = source->source_tile_height;
- pr->image_width = source->image_width;
- pr->image_height = source->image_height;
-
- pr->func_tile_request = source->func_tile_request;
- pr->func_tile_dispose = source->func_tile_dispose;
- pr->func_tile_data = source->func_tile_data;
-
- pr->source_tiles = source->source_tiles;
- source->source_tiles = NULL;
-
- pr_zoom_sync(pr, source->zoom, PR_ZOOM_FORCE | PR_ZOOM_NEW, 0, 0);
- pr_redraw(pr, TRUE);
- }
- else
- {
- pixbuf_renderer_set_pixbuf(pr, source->pixbuf, source->zoom);
- }
-
- pr->scroll_reset = scroll_reset;
-
- pixbuf_renderer_set_pixbuf(source, NULL, source->zoom);
- pr_queue_clear(source);
- pr_tile_free_all(source);
-}
-
-void pixbuf_renderer_area_changed(PixbufRenderer *pr, gint src_x, gint src_y, gint src_w, gint src_h)
-{
- gint x, y, width, height, x1, y1, x2, y2;
-
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr_coords_map_orientation_reverse(pr,
- src_x, src_y,
- pr->image_width, pr->image_height,
- src_w, src_h,
- &x, &y,
- &width, &height);
-
- if (pr->source_tiles_enabled)
- {
- pr_source_tile_changed(pr, x, y, width, height);
- }
-
- if (pr->scale != 1.0 && pr->zoom_quality != GDK_INTERP_NEAREST)
- {
- /* increase region when using a zoom quality that may access surrounding pixels */
- y -= 1;
- height += 2;
- }
-
- x1 = (gint)floor((gdouble)x * pr->scale);
- y1 = (gint)floor((gdouble)y * pr->scale);
- x2 = (gint)ceil((gdouble)(x + width) * pr->scale);
- y2 = (gint)ceil((gdouble)(y + height) * pr->scale);
-
- pr_queue(pr, x1, y1, x2 - x1, y2 - y1, FALSE, TILE_RENDER_AREA, TRUE, TRUE);
-}
-
-void pixbuf_renderer_zoom_adjust(PixbufRenderer *pr, gdouble increment)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr_zoom_adjust_real(pr, increment, PR_ZOOM_NONE, 0, 0);
-}
-
-void pixbuf_renderer_zoom_adjust_at_point(PixbufRenderer *pr, gdouble increment, gint x, gint y)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr_zoom_adjust_real(pr, increment, PR_ZOOM_CENTER, x, y);
-}
-
-void pixbuf_renderer_zoom_set(PixbufRenderer *pr, gdouble zoom)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- pr_zoom_sync(pr, zoom, PR_ZOOM_NONE, 0, 0);
-}
-
-gdouble pixbuf_renderer_zoom_get(PixbufRenderer *pr)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
-
- return pr->zoom;
-}
-
-gdouble pixbuf_renderer_zoom_get_scale(PixbufRenderer *pr)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), 1.0);
-
- return pr->scale;
-}
-
-void pixbuf_renderer_zoom_set_limits(PixbufRenderer *pr, gdouble min, gdouble max)
-{
- g_return_if_fail(IS_PIXBUF_RENDERER(pr));
-
- if (min > 1.0 || max < 1.0) return;
- if (min < 1.0 && min > -1.0) return;
- if (min < -200.0 || max > 200.0) return;
-
- if (pr->zoom_min != min)
- {
- pr->zoom_min = min;
- g_object_notify(G_OBJECT(pr), "zoom_min");
- }
- if (pr->zoom_max != max)
- {
- pr->zoom_max = max;
- g_object_notify(G_OBJECT(pr), "zoom_max");
- }
-}
-
-gboolean pixbuf_renderer_get_pixel_colors(PixbufRenderer *pr, gint x_pixel, gint y_pixel,
- gint *r_mouse, gint *g_mouse, gint *b_mouse)
-{
- GdkPixbuf *pb = pr->pixbuf;
- gint p_alpha, prs;
- guchar *p_pix, *pp;
- gint map_x, map_y, map_w, map_h;
-
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
- g_return_val_if_fail(r_mouse != NULL && g_mouse != NULL && b_mouse != NULL, FALSE);
-
- if (!pr->pixbuf && !pr->source_tiles_enabled)
- {
- *r_mouse = -1;
- *g_mouse = -1;
- *b_mouse = -1;
- return FALSE;
- }
-
- if (!pb) return FALSE;
-
- pr_tile_region_map_orientation(pr,
- x_pixel, y_pixel,
- pr->image_width, pr->image_height,
- 1, 1, /*single pixel */
- &map_x, &map_y,
- &map_w, &map_h);
-
- if (map_x < 0 || map_x > gdk_pixbuf_get_width(pr->pixbuf) - 1) return FALSE;
- if (map_y < 0 || map_y > gdk_pixbuf_get_height(pr->pixbuf) - 1) return FALSE;
-
- p_alpha = gdk_pixbuf_get_has_alpha(pb);
- prs = gdk_pixbuf_get_rowstride(pb);
- p_pix = gdk_pixbuf_get_pixels(pb);
-
- pp = p_pix + map_y * prs + (map_x * (p_alpha ? 4 : 3));
- *r_mouse = *pp;
- pp++;
- *g_mouse = *pp;
- pp++;
- *b_mouse = *pp;
-
- return TRUE;
-}
-
-gboolean pixbuf_renderer_get_mouse_position(PixbufRenderer *pr, gint *x_pixel_return, gint *y_pixel_return)
-{
- gint x_pixel, y_pixel, x_pixel_clamped, y_pixel_clamped;
-
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
- g_return_val_if_fail(x_pixel_return != NULL && y_pixel_return != NULL, FALSE);
-
- if (!pr->pixbuf && !pr->source_tiles_enabled)
- {
- *x_pixel_return = -1;
- *y_pixel_return = -1;
- return FALSE;
- }
-
- x_pixel = floor((gdouble)(pr->x_mouse - pr->x_offset + pr->x_scroll) / pr->scale);
- y_pixel = floor((gdouble)(pr->y_mouse - pr->y_offset + pr->y_scroll) / pr->scale);
- x_pixel_clamped = CLAMP(x_pixel, 0, pr->image_width - 1);
- y_pixel_clamped = CLAMP(y_pixel, 0, pr->image_height - 1);
-
- if(x_pixel != x_pixel_clamped || y_pixel != y_pixel_clamped)
- {
- /* mouse is not on pr */
- x_pixel = y_pixel = -1;
- }
-
- *x_pixel_return = x_pixel;
- *y_pixel_return = y_pixel;
-
- return TRUE;
-}
-
-gboolean pixbuf_renderer_get_image_size(PixbufRenderer *pr, gint *width, gint *height)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
- g_return_val_if_fail(width != NULL && height != NULL, FALSE);
-
- if (!pr->pixbuf && !pr->source_tiles_enabled)
- {
- *width = 0;
- *height = 0;
- return FALSE;
- }
-
- *width = pr->image_width;
- *height = pr->image_height;
- return TRUE;
-}
-
-gboolean pixbuf_renderer_get_scaled_size(PixbufRenderer *pr, gint *width, gint *height)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
- g_return_val_if_fail(width != NULL && height != NULL, FALSE);
-
- if (!pr->pixbuf && !pr->source_tiles_enabled)
- {
- *width = 0;
- *height = 0;
- return FALSE;
- }
-
- *width = pr->width;
- *height = pr->height;
- return TRUE;
-}
-
-gboolean pixbuf_renderer_get_visible_rect(PixbufRenderer *pr, GdkRectangle *rect)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
- g_return_val_if_fail(rect != NULL, FALSE);
-
- if ((!pr->pixbuf && !pr->source_tiles_enabled) ||
- !pr->scale)
- {
- rect->x = 0;
- rect->y = 0;
- rect->width = 0;
- rect->height = 0;
- return FALSE;
- }
-
- rect->x = (gint)((gdouble)pr->x_scroll / pr->scale);
- rect->y = (gint)((gdouble)pr->y_scroll / pr->scale);
- rect->width = (gint)((gdouble)pr->vis_width / pr->scale);
- rect->height = (gint)((gdouble)pr->vis_height / pr->scale);
- return TRUE;
-}
-
-gboolean pixbuf_renderer_get_virtual_rect(PixbufRenderer *pr, GdkRectangle *rect)
-{
- g_return_val_if_fail(IS_PIXBUF_RENDERER(pr), FALSE);
- g_return_val_if_fail(rect != NULL, FALSE);
-
- if ((!pr->pixbuf && !pr->source_tiles_enabled))
- {
- rect->x = 0;
- rect->y = 0;
- rect->width = 0;
- rect->height = 0;
- return FALSE;
- }
-
- rect->x = pr->x_scroll;
- rect->y = pr->y_scroll;
- rect->width = pr->vis_width;
- rect->height = pr->vis_height;
- return TRUE;
-}
-/* vim: set shiftwidth=8 softtabstop=0 cindent cinoptions={1s: */
projects / geeqie.git / blobdiff