/*
- * GQview image viewer
- * (C)2000 John Ellis
+ * GQview
+ * (C) 2004 John Ellis
*
* 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 "gqview.h"
#include "image.h"
-#include "icons/img_unknown.xpm"
-#include <gdk/gdkx.h>
-static gchar *zoom_as_text(gint zoom, gfloat scale);
-static void set_zoom_label(GtkWidget *label, gint zoom, gfloat scale);
-static void set_info_label(GtkWidget *label, gint width, gint height, gint size, gint unknown);
-static void set_window_title(ImageWindow *imd, gchar *text);
-static gint image_area_size_top_window(ImageWindow *imd, gint w, gint h);
+#include "image-load.h"
+#include "collect.h"
+#include "exif.h"
+#include "pixbuf_util.h"
+#include "ui_fileops.h"
-static void image_area_recalc_size(ImageWindow *imd, GtkAllocation *allocation);
+#include <math.h>
-static void image_area_redraw(ImageWindow *imd);
-static gint image_area_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data);
-static gint image_area_update_cb(GtkWidget *widget, GdkEventConfigure *event, gpointer data);
-static void set_mouse_cursor (GdkWindow *window, gint icon);
-static void image_area_mouse_moved(GtkWidget *widget, GdkEventButton *bevent, gpointer data);
-static void image_area_mouse_pressed(GtkWidget *widget, GdkEventButton *bevent, gpointer data);
-static void image_area_mouse_released(GtkWidget *widget, GdkEventButton *bevent, gpointer data);
-static void image_area_mouse_drag(GtkWidget *widget, GdkDragContext *context, gpointer data);
+#define IMAGE_TILE_SIZE 128
+#define IMAGE_ZOOM_MIN -32.0
+#define IMAGE_ZOOM_MAX 32.0
-/*
- *-----------------------------------------------------------------------------
- * image status widget update routines (private)
- *-----------------------------------------------------------------------------
+/* size of the image loader buffer (512 bytes x defined number) */
+#define IMAGE_LOAD_BUFFER_COUNT 8
+
+/* define this so that more bytes are read per idle loop on larger images (> 1MB) */
+#define IMAGE_THROTTLE_LARGER_IMAGES 1
+
+/* throttle factor to increase read bytes by (2 is double, 3 is triple, etc.) */
+#define IMAGE_THROTTLE_FACTOR 4
+
+/* the file size at which throttling take place */
+#define IMAGE_THROTTLE_THRESHOLD 1048576
+
+/* distance to drag mouse to disable image flip */
+#define IMAGE_DRAG_SCROLL_THRESHHOLD 4
+
+/* alpha channel checkerboard background (same as gimp) */
+#define IMAGE_ALPHA_CHECK1 0x00999999
+#define IMAGE_ALPHA_CHECK2 0x00666666
+#define IMAGE_ALPHA_CHECK_SIZE 16
+
+#define IMAGE_AUTO_REFRESH_TIME 3000
+
+/* 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 IMAGE_MIN_SCALE_SIZE 8
+
-static gchar *zoom_as_text(gint zoom, gfloat scale)
+typedef enum {
+ TILE_RENDER_NONE = 0, /* do nothing */
+ TILE_RENDER_AREA, /* render an area of the tile */
+ TILE_RENDER_ALL /* render the whole tile */
+} TileRenderType;
+
+typedef struct _ImageTile ImageTile;
+struct _ImageTile
{
- gint l = 1;
- gint r = 1;
- gchar *approx = " ";
- if (zoom > 1) l = zoom;
- if (zoom < -1) r = -zoom;
- if (zoom == 0 && scale != 0)
+ 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 '' */
+
+ gint 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*
+*/
+
+ TileRenderType render_todo; /* what to do (see above) */
+ TileRenderType render_done; /* highest that has been done before on tile */
+};
+
+typedef struct _QueueData QueueData;
+struct _QueueData
+{
+ ImageTile *it;
+ gint x;
+ gint y;
+ gint w;
+ gint h;
+ gint new_data;
+};
+
+typedef struct _CacheData CacheData;
+struct _CacheData
+{
+ GdkPixmap *pixmap;
+ GdkPixbuf *pixbuf;
+ ImageTile *it;
+ guint size;
+};
+
+typedef struct _OverlayData OverlayData;
+struct _OverlayData
+{
+ gint id;
+
+ GdkPixbuf *pixbuf;
+
+ gint x;
+ gint y;
+ gint relative; /* x,y coordinates are relative, negative values start bottom right */
+
+ gint visible;
+ gint always; /* hide temporarily when scrolling */
+};
+
+
+static void image_queue_clear(ImageWindow *imd);
+
+static void image_update_title(ImageWindow *imd);
+static void image_update_util(ImageWindow *imd);
+static void image_complete_util(ImageWindow *imd, gint preload);
+
+static void image_button_do(ImageWindow *imd, GdkEventButton *bevent);
+
+static void image_overlay_draw(ImageWindow *imd, gint x, gint y, gint w, gint h);
+static void image_overlay_queue_all(ImageWindow *imd);
+
+static void image_scroller_timer_set(ImageWindow *imd, gint start);
+
+
+static gint util_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)
{
- if (scale < 1) r = 1 / scale + 0.5;
- approx = " ~";
+ return FALSE;
}
- return g_strdup_printf("%d :%s%d", l, approx, r);
+
+ *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 void set_zoom_label(GtkWidget *label, gint zoom, gfloat scale)
+
+/*
+ *-------------------------------------------------------------------
+ * tile cache
+ *-------------------------------------------------------------------
+ */
+
+static gint pixmap_calc_size(GdkPixmap *pixmap)
{
- gchar *buf;
- buf = zoom_as_text(zoom, scale);
- gtk_label_set(GTK_LABEL(label), buf);
- g_free(buf);
+ gint w, h, d;
+
+ d = gdk_drawable_get_depth(pixmap);
+ gdk_drawable_get_size(pixmap, &w, &h);
+ return w * h * (d / 8);
}
-static void set_info_label(GtkWidget *label, gint width, gint height, gint size, gint unknown)
+static void image_tile_cache_remove(ImageWindow *imd, ImageTile *it)
{
- gchar buf[64];
- if (unknown)
- sprintf(buf, _("( ? x ? ) %d bytes"), size);
- else
- sprintf(buf, _("( %d x %d ) %d bytes"), width, height, size);
- gtk_label_set(GTK_LABEL(label), buf);
+ GList *work;
+
+ work = imd->tile_cache;
+ while(work)
+ {
+ CacheData *cd = work->data;
+ work = work->next;
+
+ if (cd->it == it)
+ {
+ imd->tile_cache = g_list_remove(imd->tile_cache, cd);
+ imd->tile_cache_size -= cd->size;
+ g_free(cd);
+ }
+ }
}
-static void set_window_title(ImageWindow *imd, gchar *text)
+static void image_tile_cache_free(ImageWindow *imd, CacheData *cd)
{
- gchar *title = NULL;
- if (!imd->top_window) return;
-
- if (imd->title)
+ imd->tile_cache = g_list_remove(imd->tile_cache, cd);
+ if (cd->pixmap)
{
- title = g_strconcat(imd->title, imd->image_name, text, NULL);
+ g_object_unref(cd->it->pixmap);
+ cd->it->pixmap = NULL;
+ cd->it->render_done = TILE_RENDER_NONE;
}
- else
+ if (cd->pixbuf)
{
- title = g_strconcat(imd->image_name, text, NULL);
+ gdk_pixbuf_unref(cd->it->pixbuf);
+ cd->it->pixbuf = NULL;
}
-
- gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
- g_free(title);
+ imd->tile_cache_size -= cd->size;
+ g_free(cd);
}
-/*
- *-----------------------------------------------------------------------------
- * fit window to image utility (private)
- *-----------------------------------------------------------------------------
- */
-
-static gint image_area_size_top_window(ImageWindow *imd, gint w, gint h)
+static void image_tile_cache_free_space(ImageWindow *imd, gint space, ImageTile *it)
{
- if (!imd->top_window) return FALSE;
- if (imd == full_screen_image) return FALSE;
- if (imd == normal_image && !toolwindow) return FALSE;
- if (!fit_window) return FALSE;
+ GList *work = g_list_last(imd->tile_cache);
- if (imd == normal_image)
+ while (work && imd->tile_cache_size > 0 && imd->tile_cache_size + space > tile_cache_max * 1048576)
{
- /* account for border frame */
- w += 4;
- h += 4;
+ CacheData *cd = work->data;
+ work = work->prev;
+ if (cd->it != it) image_tile_cache_free(imd, cd);
}
+}
- if (limit_window_size)
+static void image_tile_cache_add(ImageWindow *imd, ImageTile *it,
+ GdkPixmap *pixmap, GdkPixbuf *pixbuf, guint size)
+{
+ CacheData *cd;
+
+ cd = g_new(CacheData, 1);
+ cd->pixmap = pixmap;
+ cd->pixbuf = pixbuf;
+ cd->it = it;
+ cd->size = size;
+
+ imd->tile_cache = g_list_prepend(imd->tile_cache, cd);
+
+ imd->tile_cache_size += cd->size;
+}
+
+static void image_tile_prepare(ImageWindow *imd, ImageTile *it)
+{
+ if (!it->pixmap)
{
- gint sw = gdk_screen_width() * max_window_size / 100;
- gint sh = gdk_screen_height() * max_window_size / 100;
+ GdkPixmap *pixmap;
+ guint size;
- if (w > sw) w = sw;
- if (h > sh) h = sh;
- }
+ pixmap = gdk_pixmap_new(imd->image->window, imd->tile_width, imd->tile_height, -1);
- /* to cheat on a prob a little, don't resize if within 1 either way...
- ...dumb off by 1 errors! ;) */
+ size = pixmap_calc_size(pixmap);
+ image_tile_cache_free_space(imd, size, it);
-/* if (w >= (imd->top_window)->allocation.width - 1 &&
- w <= (imd->top_window)->allocation.width + 1 &&
- h >= (imd->top_window)->allocation.height - 1 &&
- h <= (imd->top_window)->allocation.height + 1)
- return FALSE;
-*/
- if (debug) printf("auto sized to %d x %d\n", w, h);
+ it->pixmap = pixmap;
+ image_tile_cache_add(imd, it, pixmap, NULL, size);
+ }
+
+ if ((imd->zoom != 1.0 || gdk_pixbuf_get_has_alpha(imd->pixbuf)) &&
+ !it->pixbuf)
+ {
+ GdkPixbuf *pixbuf;
+ guint size;
- gdk_window_resize(imd->top_window->window, w, h);
- gtk_widget_set_usize(imd->top_window, w, h);
+ pixbuf = gdk_pixbuf_new(gdk_pixbuf_get_colorspace(imd->pixbuf),
+ gdk_pixbuf_get_has_alpha(imd->pixbuf),
+ gdk_pixbuf_get_bits_per_sample(imd->pixbuf),
+ imd->tile_width, imd->tile_height);
- return TRUE;
+ size = gdk_pixbuf_get_rowstride(pixbuf) * imd->tile_height;
+ image_tile_cache_free_space(imd, size, it);
+
+ it->pixbuf = pixbuf;
+ image_tile_cache_add(imd, it, NULL, pixbuf, size);
+ }
}
/*
- *-----------------------------------------------------------------------------
- * image widget zoom/recalc routines
- *-----------------------------------------------------------------------------
- */
+ *-------------------------------------------------------------------
+ * tiles
+ *-------------------------------------------------------------------
+ */
-void image_area_scroll(ImageWindow *imd, gint x, gint y)
+static ImageTile *image_tile_new(gint w, gint h)
{
- if (x != 0)
- {
- GtkAdjustment *h = gtk_viewport_get_hadjustment(GTK_VIEWPORT(imd->viewport));
- gfloat val = h->value + x;
- if (val < h->lower) val = h->lower;
- if (val > h->upper - h->page_size) val = h->upper - h->page_size;
- gtk_adjustment_set_value(GTK_ADJUSTMENT(h), val);
- }
-
- if (y != 0)
- {
- GtkAdjustment *v = gtk_viewport_get_vadjustment(GTK_VIEWPORT(imd->viewport));
- gfloat val = v->value + y;
- if (val < v->lower) val = v->lower;
- if (val > v->upper - v->page_size) val = v->upper - v->page_size;
- gtk_adjustment_set_value(GTK_ADJUSTMENT(v), val);
- }
+ ImageTile *it;
+
+ it = g_new0(ImageTile, 1);
+ it->w = w;
+ it->h = h;
+ it->pixmap = NULL;
+ it->pixbuf = NULL;
+ it->blank = TRUE;
+ it->render_todo = TILE_RENDER_NONE;
+ it->render_done = TILE_RENDER_NONE;
+
+ return it;
}
-gint image_area_get_zoom(ImageWindow *imd)
+static void image_tile_free(ImageTile *it)
{
- return imd->zoom;
+ if (!it) return;
+
+ if (it->pixbuf) gdk_pixbuf_unref(it->pixbuf);
+ if (it->pixmap) g_object_unref(it->pixmap);
+
+ g_free(it);
}
-void image_area_adjust_zoom(ImageWindow *imd, gint increment)
+static void image_tile_sync_count(ImageWindow *imd, gint n)
{
- gint zoom = imd->zoom;
- if (increment < 0)
+ gint l;
+
+ l = g_list_length(imd->tiles);
+
+ if (l == n) return;
+
+ if (l < n)
{
- while (increment < 0)
+ while (l < n)
{
- zoom--;
- if (zoom == 0 || zoom == -1) zoom = -2;
- increment++;
+ imd->tiles = g_list_prepend(imd->tiles, image_tile_new(imd->tile_width, imd->tile_height));
+ l++;
}
- if (zoom < -8) zoom = -8;
}
else
{
- while (increment > 0)
+ /* This should remove from the tail of the GList, but with large images there are many tiles,
+ * making this significantly faster for those cases.
+ */
+ while (l > n && imd->tiles)
{
- zoom++;
- if (zoom == -1) zoom = 1;
- increment--;
+ ImageTile *it = imd->tiles->data;
+ imd->tiles = g_list_remove(imd->tiles, it);
+ image_tile_cache_remove(imd, it);
+ image_tile_free(it);
+ l--;
}
- if (zoom > 3) zoom = 3;
}
- if (zoom != imd->zoom)
- image_area_set_zoom(imd, zoom);
}
-void image_area_set_zoom(ImageWindow *imd, gint zoom)
+static void image_tile_sync(ImageWindow *imd, gint width, gint height, gint blank)
{
- if (zoom == imd->zoom && imd->width > 0 && imd->height > 0) return;
+ gint rows;
+ gint x, y;
+ GList *work;
- imd->zoom = zoom;
- image_area_recalc_size(imd, NULL);
+ imd->tile_cols = (width + imd->tile_width - 1) / imd->tile_width;
- gtk_widget_set_usize (imd->table, imd->width, imd->height);
- gtk_drawing_area_size(GTK_DRAWING_AREA(imd->image), imd->width, imd->height);
+ rows = (height + imd->tile_height - 1) / imd->tile_height;
+
+ image_tile_sync_count(imd, imd->tile_cols * rows);
+
+ x = y = 0;
+ work = imd->tiles;
+ while(work)
+ {
+ ImageTile *it = work->data;
+ work = work->next;
+
+ it->x = x;
+ it->y = y;
+ if (x + imd->tile_width > width)
+ {
+ it->w = width - x;
+ }
+ else
+ {
+ it->w = imd->tile_width;
+ }
+ if (y + imd->tile_height > height)
+ {
+ it->h = height - y;
+ }
+ else
+ {
+ it->h = imd->tile_height;
+ }
+
+ it->blank = blank;
+ it->render_todo = TILE_RENDER_NONE;
+ it->render_done = TILE_RENDER_NONE;
+
+ x += imd->tile_width;
+ if (x >= width)
+ {
+ x = 0;
+ y += imd->tile_height;
+ }
+ }
+
+ /* all it's are now useless in queue */
+ image_queue_clear(imd);
}
-static void image_area_recalc_size(ImageWindow *imd, GtkAllocation *allocation)
+static void image_tile_render(ImageWindow *imd, ImageTile *it,
+ gint x, gint y, gint w, gint h,
+ gint new_data, gint fast)
{
- gint w, h, ww, wh;
- gfloat scale_factor = 1;
+ gint has_alpha;
+ gint draw = FALSE;
+
+ if (it->render_todo == TILE_RENDER_NONE && it->pixmap) return;
- w = imd->image_data->rgb_width;
- h = imd->image_data->rgb_height;
- if (allocation)
+ if (it->render_done != TILE_RENDER_ALL)
{
- ww = allocation->width;
- wh = allocation->height;
+ x = 0;
+ y = 0;
+ w = it->w;
+ h = it->h;
+ if (!fast) it->render_done = TILE_RENDER_ALL;
}
- else
+ else if (it->render_todo != TILE_RENDER_AREA)
{
- ww = (imd->eventbox)->allocation.width;
- wh = (imd->eventbox)->allocation.height;
+ if (!fast) it->render_todo = TILE_RENDER_NONE;
+ return;
}
- if (imd == normal_image)
+ if (!fast) it->render_todo = TILE_RENDER_NONE;
+
+ if (new_data) it->blank = FALSE;
+
+ image_tile_prepare(imd, it);
+ has_alpha = gdk_pixbuf_get_has_alpha(imd->pixbuf);
+
+ /* FIXME checker colors for alpha should be configurable,
+ * also should be drawn for blank = TRUE
+ */
+
+ if (it->blank)
{
- /* account for frame */
- ww -= 4;
- wh -= 4;
+ /* no data, do fast rect fill */
+ gdk_draw_rectangle(it->pixmap, imd->image->style->black_gc, TRUE,
+ 0, 0, it->w, it->h);
}
-
- if (imd->zoom == 0) /* zoom to fit */
+ else if (imd->zoom == 1.0 || imd->scale == 1.0)
{
- if (imd == normal_image && imd->width == 0 && imd->height == 0 &&
- fit_window && toolwindow)
+ if (has_alpha)
{
- if (limit_window_size)
- {
- ww = (gdk_screen_width() * max_window_size / 100) - 4;
- wh = (gdk_screen_height() * max_window_size / 100) - 4;
- }
- else
- {
- ww = w;
- wh = h;
- }
+ gdk_pixbuf_composite_color(imd->pixbuf, it->pixbuf, x, y, w, h,
+ (double) 0.0 - it->x,
+ (double) 0.0 - it->y,
+ 1.0, 1.0, GDK_INTERP_NEAREST,
+ 255, it->x + x, it->y + y,
+ IMAGE_ALPHA_CHECK_SIZE, IMAGE_ALPHA_CHECK1, IMAGE_ALPHA_CHECK2);
+ draw = TRUE;
}
- if (w > ww || h > wh)
+ else
{
- if ((gfloat)ww / w > (gfloat)wh / h)
- {
- scale_factor = (gfloat) wh / h;
- h = wh;
- w = w * scale_factor + 0.5;
- if (w > ww) w = ww;
- }
- else
- {
- scale_factor = (gfloat)ww / w;
- w = ww;
- h = h * scale_factor + 0.5;
- if (h > wh) h = wh;
- }
- if (w < 1) w = 1;
- if (h < 1) h = 1;
+ /* faster, simple */
+ gdk_draw_pixbuf(it->pixmap,
+ imd->image->style->fg_gc[GTK_WIDGET_STATE(imd->image)],
+ imd->pixbuf,
+ it->x + x, it->y + y,
+ x, y,
+ w, h,
+ (GdkRgbDither)dither_quality, it->x + x, it->y + y);
}
}
- else if (imd->zoom > 0) /* zoom orig, in */
- {
- scale_factor = imd->zoom;
- w = w * scale_factor;
- h = h * scale_factor;
- }
- else if (imd->zoom < -1) /* zoom out */
+ else
{
- scale_factor = (- imd->zoom);
- w = w / scale_factor;
- h = h / scale_factor;
- }
-
- imd->width = w;
- imd->height = h;
+ double scale_x, scale_y;
- if (debug) printf("recalc %d x %d @ %f\n", w, h, scale_factor);
+ if (imd->image_width == 0 || imd->image_height == 0) return;
+ scale_x = (double)imd->width / imd->image_width;
+ scale_y = (double)imd->height / imd->image_height;
- if (imd->zoom_label)
- {
- set_zoom_label(imd->zoom_label, imd->zoom, scale_factor);
- }
+ /* HACK: The pixbuf scalers get kinda buggy(crash) with extremely
+ * small sizes for anything but GDK_INTERP_NEAREST
+ */
+ if (imd->width < IMAGE_MIN_SCALE_SIZE || imd->height < IMAGE_MIN_SCALE_SIZE) fast = TRUE;
-/* this is causing problems with resizing
- if (imd->top_window && imd->show_title_zoom)
- {
- gchar *buf = zoom_as_text(imd->zoom, scale_factor);
- gchar *zbuf = g_strconcat(" [ ", buf, "]", NULL);
- g_free(buf);
- set_window_title(imd, zbuf);
- g_free(zbuf);
+ if (!has_alpha)
+ {
+ gdk_pixbuf_scale(imd->pixbuf, it->pixbuf, x, y, w, h,
+ (double) 0.0 - it->x,
+ (double) 0.0 - it->y,
+ scale_x, scale_y,
+ (fast) ? GDK_INTERP_NEAREST : (GdkInterpType)zoom_quality);
+ }
+ else
+ {
+ gdk_pixbuf_composite_color(imd->pixbuf, it->pixbuf, x, y, w, h,
+ (double) 0.0 - it->x,
+ (double) 0.0 - it->y,
+ scale_x, scale_y,
+ (fast) ? GDK_INTERP_NEAREST : (GdkInterpType)zoom_quality,
+ 255, it->x + x, it->y + y,
+ IMAGE_ALPHA_CHECK_SIZE, IMAGE_ALPHA_CHECK1, IMAGE_ALPHA_CHECK2);
+ }
+ draw = TRUE;
}
-*/
- if (image_area_size_top_window(imd, w, h))
+ if (draw && it->pixbuf && !it->blank)
{
- /* this is hacky */
- imd->artificial_size = TRUE;
- gtk_grab_add (info_zoom);
- while(gtk_events_pending()) gtk_main_iteration();
- gtk_grab_remove(info_zoom);
- imd->artificial_size = FALSE;
+ gdk_draw_pixbuf(it->pixmap,
+ imd->image->style->fg_gc[GTK_WIDGET_STATE(imd->image)],
+ it->pixbuf,
+ x, y,
+ x, y,
+ w, h,
+ (GdkRgbDither)dither_quality, it->x + x, it->y + y);
}
}
-/*
- *-----------------------------------------------------------------------------
- * image widget set/get image information
- *-----------------------------------------------------------------------------
- */
-
-void image_area_set_path(ImageWindow *imd, gchar *newpath)
+static void image_tile_expose(ImageWindow *imd, ImageTile *it,
+ gint x, gint y, gint w, gint h,
+ gint new_data, gint fast)
{
- if (!imd->image_path || !newpath) return;
+ image_tile_render(imd, it, x, y, w, h, new_data, fast);
- g_free(imd->image_path);
- imd->image_path = g_strdup(newpath);
- imd->image_name = filename_from_path(imd->image_path);
+ gdk_draw_drawable(imd->image->window, imd->image->style->fg_gc[GTK_WIDGET_STATE(imd->image)],
+ it->pixmap, x, y,
+ imd->x_offset + (it->x - imd->x_scroll) + x, imd->y_offset + (it->y - imd->y_scroll) + y, w, h);
- if (imd->top_window)
+ if (imd->overlay_list)
{
- set_window_title(imd, NULL);
+ image_overlay_draw(imd, imd->x_offset + (it->x - imd->x_scroll) + x,
+ imd->y_offset + (it->y - imd->y_scroll) + y,
+ w, h);
}
}
-gchar *image_area_get_path(ImageWindow *imd)
+static gint image_tile_is_visible(ImageWindow *imd, ImageTile *it)
{
- return imd->image_path;
+ return (it->x + it->w >= imd->x_scroll && it->x <= imd->x_scroll + imd->window_width - imd->x_offset * 2 &&
+ it->y + it->h >= imd->y_scroll && it->y <= imd->y_scroll + imd->window_height - imd->y_offset * 2);
}
-gchar *image_area_get_name(ImageWindow *imd)
-{
- return imd->image_name;
-}
+/*
+ *-------------------------------------------------------------------
+ * render queue
+ *-------------------------------------------------------------------
+ */
+
-void image_area_set_image(ImageWindow *imd, gchar *path, gint zoom)
+static gint image_queue_draw_idle_cb(gpointer data)
{
- if (path && imd->image_path && !strcmp(path, imd->image_path)) return;
+ ImageWindow *imd = data;
+ QueueData *qd;
+ gint fast;
- g_free(imd->image_path);
- if (path)
+ if (!imd->pixbuf || (!imd->draw_queue && !imd->draw_queue_2pass) || imd->draw_idle_id == -1)
+ {
+ if (!imd->completed) image_complete_util(imd, FALSE);
+
+ imd->draw_idle_id = -1;
+ return FALSE;
+ }
+
+ if (imd->draw_queue)
{
- imd->image_path = g_strdup(path);
- imd->image_name = filename_from_path(imd->image_path);
+ qd = imd->draw_queue->data;
+ fast = (two_pass_zoom && (GdkInterpType)zoom_quality != GDK_INTERP_NEAREST && imd->scale != 1.0);
}
else
{
- imd->image_path = NULL;
- imd->image_name = " ";
- zoom = 1;
+ if (imd->il)
+ {
+ /* still loading, wait till done (also drops the higher priority) */
+
+ imd->draw_idle_id = g_idle_add_full(G_PRIORITY_DEFAULT_IDLE,
+ image_queue_draw_idle_cb, imd, NULL);
+ imd->draw_idle_high = FALSE;
+ return FALSE;
+ }
+ qd = imd->draw_queue_2pass->data;
+ fast = FALSE;
+ }
+
+ if (GTK_WIDGET_REALIZED(imd->image))
+ {
+ if (image_tile_is_visible(imd, qd->it))
+ {
+ image_tile_expose(imd, 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)
+ {
+ image_tile_render(imd, qd->it, qd->x, qd->y, qd->w, qd->h, qd->new_data, fast);
+ }
+ }
}
- if (imd->image_data) gdk_imlib_destroy_image(imd->image_data);
- if (path && isfile(path))
+ if (imd->draw_queue)
{
- imd->image_data = gdk_imlib_load_image(path);
- if (!imd->image_data)
+ imd->draw_queue = g_list_remove(imd->draw_queue, qd);
+ if (fast)
{
- imd->image_data = gdk_imlib_create_image_from_xpm_data((gchar **)img_unknown_xpm);
- imd->unknown = TRUE;
+ imd->draw_queue_2pass = g_list_append(imd->draw_queue_2pass, qd);
}
else
{
- imd->unknown = FALSE;
+ g_free(qd);
}
- imd->size = filesize(path);
}
else
{
- if (path)
- imd->image_data = gdk_imlib_create_image_from_xpm_data((gchar **)img_unknown_xpm);
- else
- imd->image_data = gdk_imlib_create_image_from_data((char *)logo, NULL, logo_width, logo_height);
- imd->unknown = TRUE;
- imd->size = 0;
+ imd->draw_queue_2pass = g_list_remove(imd->draw_queue_2pass, qd);
+ g_free(qd);
}
- imd->width = imd->old_width = 0;
- imd->height = imd->old_height = 0;
-
- if (imd->top_window)
+ if (!imd->draw_queue && !imd->draw_queue_2pass)
{
- set_window_title(imd, NULL);
+ if (!imd->completed) image_complete_util(imd, FALSE);
+
+ imd->draw_idle_id = -1;
+ return FALSE;
}
- if (imd->info_label)
+
+ return TRUE;
+}
+
+static QueueData *image_queue_combine(ImageWindow *imd, QueueData *qd)
+{
+ QueueData *found = NULL;
+ GList *work;
+
+ work = imd->draw_queue;
+ while (work && !found)
{
- set_info_label(imd->info_label, imd->image_data->rgb_width, imd->image_data->rgb_height, imd->size, imd->unknown);
+ found = work->data;
+ work = work->next;
+
+ if (found->it != qd->it) found = NULL;
}
- /* do info area updates here */
+ if (found)
+ {
+ if (found->x + found->w < qd->x + qd->w) found->w += (qd->x + qd->w) - (found->x + found->w);
+ if (found->x > qd->x)
+ {
+ found->w += found->x - qd->x;
+ found->x = qd->x;
+ }
- imd->new_img = TRUE;
- image_area_set_zoom(imd, zoom);
-}
+ if (found->y + found->h < qd->y + qd->h) found->h += (qd->y + qd->h) - (found->y + found->h);
+ if (found->y > qd->y)
+ {
+ found->h += found->y - qd->y;
+ found->y = qd->y;
+ }
+ found->new_data |= qd->new_data;
+ }
-/*
- *-----------------------------------------------------------------------------
- * image widget redraw/callbacks (private)
- *-----------------------------------------------------------------------------
- */
+ return found;
+}
-static void image_area_redraw(ImageWindow *imd)
+static gint image_clamp_to_visible(ImageWindow *imd, gint *x, gint *y, gint *w, gint *h)
{
- GdkBitmap *mask = NULL;
+ gint nx, ny;
+ gint nw, nh;
+ gint vx, vy;
+ gint vw, vh;
- if (debug) printf("redrawn %d x %d\n", imd->width, imd->height);
+ vw = imd->vis_width;
+ vh = imd->vis_height;
- if (!imd->image_data) return;
+ vx = imd->x_scroll;
+ vy = imd->y_scroll;
- if (imd->width == imd->old_width && imd->height == imd->old_height)
- {
- if (debug) printf("redraw cancelled\n");
- return;
- }
+ if (*x + *w < vx || *x > vx + vw || *y + *h < vy || *y > vy + vh) return FALSE;
- if (imd->image_pixmap) gdk_imlib_free_pixmap(imd->image_pixmap);
- imd->image_pixmap = NULL;
+ /* now clamp it */
+ nx = CLAMP(*x, vx, vx + vw);
+ nw = CLAMP(*w - (nx - *x), 1, vw);
- gdk_imlib_render(imd->image_data, imd->width, imd->height);
- imd->image_pixmap = gdk_imlib_move_image(imd->image_data);
- mask = gdk_imlib_move_mask(imd->image_data);
+ ny = CLAMP(*y, vy, vy + vh);
+ nh = CLAMP(*h - (ny - *y), 1, vh);
- gdk_window_set_back_pixmap(imd->image->window, imd->image_pixmap, FALSE);
- gdk_window_shape_combine_mask (imd->image->window, mask, 0, 0);
- gdk_window_clear(imd->image->window);
- gdk_flush();
+ *x = nx;
+ *y = ny;
+ *w = nw;
+ *h = nh;
- imd->old_width = imd->width;
- imd->old_height = imd->height;
+ return TRUE;
}
-static gint image_area_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
+static gint image_queue_to_tiles(ImageWindow *imd, gint x, gint y, gint w, gint h,
+ gint clamp, TileRenderType render, gint new_data)
{
- ImageWindow *imd = data;
- gint old_w, old_h;
- GtkAdjustment *h;
- GtkAdjustment *v;
- gfloat h_pos;
- gfloat v_pos;
- gfloat h_max;
- gfloat v_max;
+ gint i, j;
+ gint x1, x2;
+ gint y1, y2;
+ GList *work;
- if (imd->artificial_size) return FALSE;
+ if (clamp && !image_clamp_to_visible(imd, &x, &y, &w, &h)) return FALSE;
- h = gtk_viewport_get_hadjustment(GTK_VIEWPORT(imd->viewport));
- v = gtk_viewport_get_vadjustment(GTK_VIEWPORT(imd->viewport));
+ x1 = (gint)floor(x / imd->tile_width) * imd->tile_width;
+ x2 = (gint)ceil((x + w) / imd->tile_width) * imd->tile_width;
- h_pos = h->value;
- h_max = allocation->width;
- v_pos = v->value;
- v_max = allocation->height;
+ y1 = (gint)floor(y / imd->tile_height) * imd->tile_height;
+ y2 = (gint)ceil((y + h) / imd->tile_height) * imd->tile_height;
- if (imd == normal_image)
+ work = g_list_nth(imd->tiles, y1 / imd->tile_height * imd->tile_cols + (x1 / imd->tile_width));
+ for (j = y1; j <= y2; j += imd->tile_height)
{
- h_max -= 4.0;
- v_max -= 4.0;
+ GList *tmp;
+ tmp = work;
+ for (i = x1; i <= x2; i += imd->tile_width)
+ {
+ if (tmp)
+ {
+ ImageTile *it = tmp->data;
+ 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 > imd->tile_width) qd->w = imd->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 > imd->tile_height) qd->h = imd->tile_height - qd->y;
+
+ if (qd->w < 1 || qd->h < 1 || /* <--- sanity checks, rare cases cause this */
+ image_queue_combine(imd, qd))
+ {
+ g_free(qd);
+ }
+ else
+ {
+ imd->draw_queue = g_list_append(imd->draw_queue, qd);
+ }
+
+ tmp = tmp->next;
+ }
+ }
+ work = g_list_nth(work, imd->tile_cols); /* step 1 row */
}
- if (h_pos > h->upper - h_max) h_pos = h->upper - h_max;
- if (v_pos > v->upper - v_max) v_pos = v->upper - v_max;
+ return TRUE;
+}
- if (imd->new_img)
- {
- imd->new_img = FALSE;
- gtk_adjustment_clamp_page(h, 0.0, h_max);
- gtk_adjustment_clamp_page(v, 0.0, v_max);
- }
- else
+static void image_queue(ImageWindow *imd, gint x, gint y, gint w, gint h,
+ gint clamp, TileRenderType render, gint new_data)
+{
+ gint nx, ny;
+
+ nx = CLAMP(x, 0, imd->width - 1);
+ ny = CLAMP(y, 0, imd->height - 1);
+ w -= (nx - x);
+ h -= (ny - y);
+ w = CLAMP(w, 0, imd->width - nx);
+ h = CLAMP(h, 0, imd->height - ny);
+ if (w < 1 || h < 1) return;
+
+ if (image_queue_to_tiles(imd, nx, ny, w, h, clamp, render, new_data) &&
+ ((!imd->draw_queue && !imd->draw_queue_2pass) || imd->draw_idle_id == -1 || !imd->draw_idle_high))
{
- gtk_adjustment_clamp_page(h, h_pos, h_max);
- gtk_adjustment_clamp_page(v, v_pos, v_max);
+ if (imd->draw_idle_id != -1) g_source_remove(imd->draw_idle_id);
+ imd->draw_idle_id = g_idle_add_full(GDK_PRIORITY_REDRAW,
+ image_queue_draw_idle_cb, imd, NULL);
+ imd->draw_idle_high = TRUE;
}
+}
- gtk_adjustment_changed(h);
- gtk_adjustment_changed(v);
-
- if (!imd->image_data || imd->zoom != 0) return FALSE;
+static void image_queue_list_free(GList *list)
+{
+ GList *work;
- old_w = imd->width;
- old_h = imd->height;
- image_area_recalc_size(imd, allocation);
- if (old_w != imd->width || old_h != imd->height)
+ work = list;
+ while (work)
{
- gtk_widget_set_usize (imd->table, imd->width, imd->height);
- gtk_drawing_area_size(GTK_DRAWING_AREA(imd->image), imd->width, imd->height);
- }
+ QueueData *qd;
- if (debug) printf("sized %d x %d (%d x %d)\n", allocation->width, allocation->height, imd->width, imd->height);
+ qd = work->data;
+ work = work->next;
+ g_free(qd);
+ }
- return FALSE;
+ g_list_free(list);
}
-static gint image_area_update_cb(GtkWidget *widget, GdkEventConfigure *event, gpointer data)
+static void image_queue_clear(ImageWindow *imd)
{
- ImageWindow *imd = data;
-
- if (imd->artificial_size) return FALSE;
+ image_queue_list_free(imd->draw_queue);
+ imd->draw_queue = NULL;
- image_area_redraw(imd);
+ image_queue_list_free(imd->draw_queue_2pass);
+ imd->draw_queue_2pass = NULL;
- return FALSE;
+ if (imd->draw_idle_id != -1) g_source_remove(imd->draw_idle_id);
+ imd->draw_idle_id = -1;
}
/*
- *-----------------------------------------------------------------------------
- * image widget mouse routines (private)
- *-----------------------------------------------------------------------------
- */
+ *-------------------------------------------------------------------
+ * core calculations
+ *-------------------------------------------------------------------
+ */
-static void set_mouse_cursor (GdkWindow *window, gint icon)
+static gint image_top_window_sizable(ImageWindow *imd)
{
- GdkCursor *cursor;
-
- if (icon == -1)
- {
- cursor = NULL;
- }
- else
- {
- cursor = gdk_cursor_new (icon);
- }
-
- gdk_window_set_cursor (window, cursor);
+ if (!imd->top_window) return FALSE;
+ if (!fit_window) return FALSE;
+ if (!imd->top_window_sync) return FALSE;
+ if (!imd->image->window) return FALSE;
+ if (window_maximized(imd->top_window)) return FALSE;
- if (cursor) gdk_cursor_destroy (cursor);
+ return TRUE;
}
-static void image_area_mouse_moved(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
+static gint image_size_top_window(ImageWindow *imd, gint w, gint h)
{
- ImageWindow *imd = data;
- GtkAdjustment* h;
- GtkAdjustment* v;
- gfloat x, y;
- gfloat val;
+ gint ww, wh;
- if (!imd->in_drag || !gdk_pointer_is_grabbed()) return;
+ if (!image_top_window_sizable(imd)) return FALSE;
- if (imd->drag_moved < 4)
- {
- imd->drag_moved++;
- }
- else
+ if (limit_window_size)
{
- set_mouse_cursor (imd->eventbox->window, GDK_FLEUR);
+ gint sw = gdk_screen_width() * max_window_size / 100;
+ gint sh = gdk_screen_height() * max_window_size / 100;
+
+ if (w > sw) w = sw;
+ if (h > sh) h = sh;
+ }
+
+ w += (imd->top_window->allocation.width - imd->image->allocation.width);
+ h += (imd->top_window->allocation.height - imd->image->allocation.height);
+
+ gdk_drawable_get_size(imd->top_window->window, &ww, &wh);
+ if (w == ww && h == wh) return FALSE;
+
+ gdk_window_resize(imd->top_window->window, w, h);
+
+ return TRUE;
+}
+
+static void image_redraw(ImageWindow *imd, gint new_data)
+{
+ image_queue_clear(imd);
+ image_queue(imd, 0, 0, imd->width, imd->height, TRUE, TILE_RENDER_ALL, new_data);
+}
+
+static void image_border_draw(ImageWindow *imd, gint x, gint y, gint w, gint h)
+{
+ gint rx, ry, rw, rh;
+
+ if (!imd->image->window) return;
+
+ if (!imd->pixbuf)
+ {
+ if (util_clip_region(x, y, w, h,
+ 0, 0,
+ imd->window_width, imd->window_height,
+ &rx, &ry, &rw, &rh))
+ {
+ gdk_window_clear_area(imd->image->window, rx, ry, rw, rh);
+ image_overlay_draw(imd, rx, ry, rw, rh);
+ }
+ return;
+ }
+
+ if (imd->vis_width < imd->window_width)
+ {
+ if (imd->x_offset > 0 &&
+ util_clip_region(x, y, w, h,
+ 0, 0,
+ imd->x_offset, imd->window_height,
+ &rx, &ry, &rw, &rh))
+ {
+ gdk_window_clear_area(imd->image->window, rx, ry, rw, rh);
+ image_overlay_draw(imd, rx, ry, rw, rh);
+ }
+ if (imd->window_width - imd->vis_width - imd->x_offset > 0 &&
+ util_clip_region(x, y, w, h,
+ imd->x_offset + imd->vis_width, 0,
+ imd->window_width - imd->vis_width - imd->x_offset, imd->window_height,
+ &rx, &ry, &rw, &rh))
+ {
+ gdk_window_clear_area(imd->image->window, rx, ry, rw, rh);
+ image_overlay_draw(imd, rx, ry, rw, rh);
+ }
+ }
+ if (imd->vis_height < imd->window_height)
+ {
+ if (imd->y_offset > 0 &&
+ util_clip_region(x, y, w, h,
+ imd->x_offset, 0,
+ imd->vis_width, imd->y_offset,
+ &rx, &ry, &rw, &rh))
+ {
+ gdk_window_clear_area(imd->image->window, rx, ry, rw, rh);
+ image_overlay_draw(imd, rx, ry, rw, rh);
+ }
+ if (imd->window_height - imd->vis_height - imd->y_offset > 0 &&
+ util_clip_region(x, y, w, h,
+ imd->x_offset, imd->y_offset + imd->vis_height,
+ imd->vis_width, imd->window_height - imd->vis_height - imd->y_offset,
+ &rx, &ry, &rw, &rh))
+ {
+ gdk_window_clear_area(imd->image->window, rx, ry, rw, rh);
+ image_overlay_draw(imd, rx, ry, rw, rh);
+ }
+ }
+}
+
+static void image_border_clear(ImageWindow *imd)
+{
+ image_border_draw(imd, 0, 0, imd->window_width, imd->window_height);
+}
+
+static gint image_scroll_clamp(ImageWindow *imd)
+{
+ gint old_xs;
+ gint old_ys;
+
+ if (imd->zoom == 0.0)
+ {
+ imd->x_scroll = 0;
+ imd->y_scroll = 0;
+ return FALSE;
+ }
+
+ old_xs = imd->x_scroll;
+ old_ys = imd->y_scroll;
+
+ if (imd->x_offset > 0)
+ {
+ imd->x_scroll = 0;
+ }
+ else
+ {
+ imd->x_scroll = CLAMP(imd->x_scroll, 0, imd->width - imd->vis_width);
+ }
+
+ if (imd->y_offset > 0)
+ {
+ imd->y_scroll = 0;
+ }
+ else
+ {
+ imd->y_scroll = CLAMP(imd->y_scroll, 0, imd->height - imd->vis_height);
+ }
+
+ return (old_xs != imd->x_scroll || old_ys != imd->y_scroll);
+}
+
+static gint image_zoom_clamp(ImageWindow *imd, gdouble zoom, gint force, gint new)
+{
+ gint w, h;
+ gdouble scale;
+
+ zoom = CLAMP(zoom, IMAGE_ZOOM_MIN, IMAGE_ZOOM_MAX);
+
+ if (imd->zoom == zoom && !force) return FALSE;
+
+ w = imd->image_width;
+ h = imd->image_height;
+
+ if (zoom == 0.0 && !imd->pixbuf)
+ {
+ scale = 1.0;
+ }
+ else if (zoom == 0.0)
+ {
+ gint max_w;
+ gint max_h;
+ gint sizeable;
+
+ sizeable = (new && image_top_window_sizable(imd));
+
+ if (sizeable)
+ {
+ max_w = gdk_screen_width();
+ max_h = gdk_screen_height();
+
+ if (limit_window_size)
+ {
+ max_w = max_w * max_window_size / 100;
+ max_h = max_h * max_window_size / 100;
+ }
+ }
+ else
+ {
+ max_w = imd->window_width;
+ max_h = imd->window_height;
+ }
+
+ if ((zoom_to_fit_expands && !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 (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;
+ }
+
+ imd->zoom = zoom;
+ imd->width = w;
+ imd->height = h;
+ imd->scale = scale;
+
+ return TRUE;
+}
+
+static gint image_size_clamp(ImageWindow *imd)
+{
+ gint old_vw, old_vh;
+
+ old_vw = imd->vis_width;
+ old_vh = imd->vis_height;
+
+ if (imd->width < imd->window_width)
+ {
+ imd->vis_width = imd->width;
+ imd->x_offset = (imd->window_width - imd->width) / 2;
+ }
+ else
+ {
+ imd->vis_width = imd->window_width;
+ imd->x_offset = 0;
+ }
+
+ if (imd->height < imd->window_height)
+ {
+ imd->vis_height = imd->height;
+ imd->y_offset = (imd->window_height - imd->height) / 2;
+ }
+ else
+ {
+ imd->vis_height = imd->window_height;
+ imd->y_offset = 0;
+ }
+
+ return (old_vw != imd->vis_width || old_vh != imd->vis_height);
+}
+
+static void image_size_sync(ImageWindow *imd, gint new_width, gint new_height)
+{
+ if (imd->window_width == new_width && imd->window_height == new_height) return;
+
+ imd->window_width = new_width;
+ imd->window_height = new_height;
+
+ if (imd->zoom == 0.0) image_zoom_clamp(imd, 0.0, TRUE, FALSE);
+
+ image_size_clamp(imd);
+ image_scroll_clamp(imd);
+
+ gtk_widget_set_size_request(imd->image, imd->window_width, imd->window_height);
+
+ /* ensure scroller remains visible */
+ if (imd->scroller_overlay != -1)
+ {
+ gint update = FALSE;
+
+ if (imd->scroller_x > new_width)
+ {
+ imd->scroller_x = new_width;
+ imd->scroller_xpos = new_width;
+ update = TRUE;
+ }
+ if (imd->scroller_y > new_height)
+ {
+ imd->scroller_y = new_height;
+ imd->scroller_ypos = new_height;
+ update = TRUE;
+ }
+
+ if (update)
+ {
+ GdkPixbuf *pixbuf;
+
+ if (image_overlay_get(imd, imd->scroller_overlay, &pixbuf, NULL, NULL))
+ {
+ gint w, h;
+
+ w = gdk_pixbuf_get_width(pixbuf);
+ h = gdk_pixbuf_get_height(pixbuf);
+ image_overlay_set(imd, imd->scroller_overlay, pixbuf,
+ imd->scroller_x - w / 2, imd->scroller_y - h / 2);
+ }
+ }
+ }
+
+ /* clear any borders */
+ image_border_clear(imd);
+
+ image_tile_sync(imd, imd->width, imd->height, FALSE);
+#if 0
+ /* no longer needed? (expose event should be doing this for us) */
+ image_redraw(imd, FALSE);
+#endif
+
+ if (imd->title_show_zoom) image_update_title(imd);
+ image_update_util(imd);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * misc
+ *-------------------------------------------------------------------
+ */
+
+static void image_update_title(ImageWindow *imd)
+{
+ gchar *title = NULL;
+ gchar *zoom = NULL;
+ gchar *collection = NULL;
+
+ if (!imd->top_window) return;
+
+ if (imd->collection && collection_to_number(imd->collection) >= 0)
+ {
+ const gchar *name;
+ name = imd->collection->name;
+ if (!name) name = _("Untitled");
+ collection = g_strdup_printf(" (Collection %s)", name);
+ }
+
+ if (imd->title_show_zoom)
+ {
+ gchar *buf = image_zoom_get_as_text(imd);
+ zoom = g_strconcat(" [", buf, "]", NULL);
+ g_free(buf);
+ }
+
+ title = g_strdup_printf("%s%s%s%s%s%s",
+ imd->title ? imd->title : "",
+ imd->image_name ? imd->image_name : "",
+ zoom ? zoom : "",
+ collection ? collection : "",
+ imd->image_name ? " - " : "",
+ imd->title_right ? imd->title_right : "");
+
+ gtk_window_set_title(GTK_WINDOW(imd->top_window), title);
+
+ g_free(title);
+ g_free(zoom);
+ g_free(collection);
+}
+
+static void image_update_util(ImageWindow *imd)
+{
+ if (imd->func_update) imd->func_update(imd, imd->data_update);
+}
+
+static void image_complete_util(ImageWindow *imd, gint preload)
+{
+ if (imd->il && imd->pixbuf != image_loader_get_pixbuf(imd->il)) return;
+
+ if (debug) printf("image load completed \"%s\" (%s)\n",
+ (preload) ? imd->read_ahead_path : imd->image_path,
+ (preload) ? "preload" : "current");
+
+ if (!preload) imd->completed = TRUE;
+ if (imd->func_complete) imd->func_complete(imd, preload, imd->data_complete);
+}
+
+static void image_new_util(ImageWindow *imd)
+{
+ if (imd->func_new) imd->func_new(imd, imd->data_new);
+}
+
+static void image_scroll_real(ImageWindow *imd, gint x, gint y)
+{
+ gint old_x, old_y;
+ gint x_off, y_off;
+ gint w, h;
+
+ if (!imd->pixbuf) return;
+
+ old_x = imd->x_scroll;
+ old_y = imd->y_scroll;
+
+ imd->x_scroll += x;
+ imd->y_scroll += y;
+
+ image_scroll_clamp(imd);
+ if (imd->x_scroll == old_x && imd->y_scroll == old_y) return;
+
+ if (imd->overlay_list)
+ {
+ gint new_x, new_y;
+
+ new_x = imd->x_scroll;
+ new_y = imd->y_scroll;
+ imd->x_scroll = old_x;
+ imd->y_scroll = old_y;
+ image_overlay_queue_all(imd);
+ imd->x_scroll = new_x;
+ imd->y_scroll = new_y;
+ }
+
+ x_off = imd->x_scroll - old_x;
+ y_off = imd->y_scroll - old_y;
+
+ w = imd->vis_width - abs(x_off);
+ h = imd->vis_height - abs(y_off);
+
+ if (w < 1 || h < 1)
+ {
+ /* scrolled completely to new material */
+ image_queue(imd, 0, 0, imd->width, imd->height, TRUE, TILE_RENDER_ALL, FALSE);
+ return;
+ }
+ else
+ {
+ gint x1, y1;
+ gint x2, y2;
+ GdkGC *gc;
+
+ 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);
+ }
+
+ gc = gdk_gc_new(imd->image->window);
+ gdk_gc_set_exposures(gc, TRUE);
+ gdk_draw_drawable(imd->image->window, gc,
+ imd->image->window,
+ x2 + imd->x_offset, y2 + imd->y_offset,
+ x1 + imd->x_offset, y1 + imd->y_offset, w, h);
+ g_object_unref(gc);
+
+ if (imd->overlay_list)
+ {
+ image_overlay_queue_all(imd);
+ }
+
+ w = imd->vis_width - w;
+ h = imd->vis_height - h;
+
+ if (w > 0)
+ {
+ image_queue(imd,
+ x_off > 0 ? imd->x_scroll + (imd->vis_width - w) : imd->x_scroll, imd->y_scroll,
+ w, imd->vis_height, TRUE, TILE_RENDER_ALL, FALSE);
+ }
+ if (h > 0)
+ {
+ /* FIXME, to optimize this, remove overlap */
+ image_queue(imd,
+ imd->x_scroll, y_off > 0 ? imd->y_scroll + (imd->vis_height - h) : imd->y_scroll,
+ imd->vis_width, h, TRUE, TILE_RENDER_ALL, FALSE);
+ }
+ }
+}
+
+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);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * image pixbuf handling
+ *-------------------------------------------------------------------
+ */
+
+static void image_zoom_sync(ImageWindow *imd, gdouble zoom,
+ gint force, gint blank, gint new,
+ gint center_point, gint px, gint py)
+{
+ gdouble old_scale;
+ gint old_cx, old_cy;
+ gint clamped;
+ gint sized;
+
+ old_scale = imd->scale;
+ if (center_point)
+ {
+ px = CLAMP(px, 0, imd->width);
+ py = CLAMP(py, 0, imd->height);
+ old_cx = imd->x_scroll + (px - imd->x_offset);
+ old_cy = imd->y_scroll + (py - imd->y_offset);
+ }
+ else
+ {
+ px = py = 0;
+ old_cx = imd->x_scroll + imd->vis_width / 2;
+ old_cy = imd->y_scroll + imd->vis_height / 2;
+ }
+
+ if (!image_zoom_clamp(imd, zoom, force, new)) return;
+
+ clamped = image_size_clamp(imd);
+ sized = image_size_top_window(imd, imd->width, imd->height);
+
+ if (force)
+ {
+ /* force means new image, so update scroll offset per options */
+ switch (scroll_reset_method)
+ {
+ case SCROLL_RESET_NOCHANGE:
+ /* maintain old scroll position, do nothing */
+ break;
+ case SCROLL_RESET_CENTER:
+ /* center new image */
+ imd->x_scroll = ((double)imd->image_width / 2.0 * imd->scale) - imd->vis_width / 2;
+ imd->y_scroll = ((double)imd->image_height / 2.0 * imd->scale) - imd->vis_height / 2;
+ break;
+ case SCROLL_RESET_TOPLEFT:
+ default:
+ /* reset to upper left */
+ imd->x_scroll = 0;
+ imd->y_scroll = 0;
+ break;
+ }
+ }
+ else
+ {
+ /* user zoom does not force, so keep visible center point */
+ if (center_point)
+ {
+ imd->x_scroll = old_cx / old_scale * imd->scale - (px - imd->x_offset);
+ imd->y_scroll = old_cy / old_scale * imd->scale - (py - imd->y_offset);
+ }
+ else
+ {
+ imd->x_scroll = old_cx / old_scale * imd->scale - (imd->vis_width / 2);
+ imd->y_scroll = old_cy / old_scale * imd->scale - (imd->vis_height / 2);
+ }
+ }
+ image_scroll_clamp(imd);
+
+ image_tile_sync(imd, imd->width, imd->height, blank);
+
+ /* 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) image_border_clear(imd);
+ image_redraw(imd, FALSE);
+
+ if (imd->title_show_zoom) image_update_title(imd);
+ image_update_util(imd);
+}
+
+static void image_pixbuf_sync(ImageWindow *imd, gdouble zoom, gint blank, gint new)
+{
+ if (!imd->pixbuf)
+ {
+ /* no pixbuf so just clear the window */
+ imd->image_width = 0;
+ imd->image_height = 0;
+ imd->scale = 1.0;
+
+ if (imd->image->window)
+ {
+ gdk_window_clear(imd->image->window);
+ image_overlay_draw(imd, 0, 0, imd->window_width, imd->window_height);
+ }
+
+ image_update_util(imd);
+
+ return;
+ }
+
+ imd->image_width = gdk_pixbuf_get_width(imd->pixbuf);
+ imd->image_height = gdk_pixbuf_get_height(imd->pixbuf);
+
+#if 0
+ /* reset scrolling */
+ imd->x_scroll = 0;
+ imd->y_scroll = 0;
+#endif
+
+ image_zoom_sync(imd, zoom, TRUE, blank, new, FALSE, 0, 0);
+}
+
+static void image_set_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom, gint new)
+{
+ if (pixbuf) g_object_ref(pixbuf);
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = pixbuf;
+
+ image_pixbuf_sync(imd, zoom, FALSE, new);
+}
+
+static void image_alter_real(ImageWindow *imd, AlterType type, gint clamp)
+{
+ GdkPixbuf *new = NULL;
+ gint x, y;
+ gint t;
+
+ imd->delay_alter_type = ALTER_NONE;
+
+ if (!imd->pixbuf) return;
+
+ x = imd->x_scroll + (imd->vis_width / 2);
+ y = imd->y_scroll + (imd->vis_height / 2);
+
+ switch (type)
+ {
+ case ALTER_ROTATE_90:
+ new = pixbuf_copy_rotate_90(imd->pixbuf, FALSE);
+ t = x;
+ x = imd->height - y;
+ y = t;
+ break;
+ case ALTER_ROTATE_90_CC:
+ new = pixbuf_copy_rotate_90(imd->pixbuf, TRUE);
+ t = x;
+ x = y;
+ y = imd->width - t;
+ break;
+ case ALTER_ROTATE_180:
+ new = pixbuf_copy_mirror(imd->pixbuf, TRUE, TRUE);
+ x = imd->width - x;
+ y = imd->height - y;
+ break;
+ case ALTER_MIRROR:
+ new = pixbuf_copy_mirror(imd->pixbuf, TRUE, FALSE);
+ x = imd->width - x;
+ break;
+ case ALTER_FLIP:
+ new = pixbuf_copy_mirror(imd->pixbuf, FALSE, TRUE);
+ y = imd->height - y;
+ break;
+ case ALTER_NONE:
+ default:
+ return;
+ break;
+ }
+
+ if (!new) return;
+
+ if (clamp)
+ {
+ image_set_pixbuf(imd, new, imd->zoom, TRUE);
+ g_object_unref(new);
+
+ if (imd->zoom != 0.0)
+ {
+ image_scroll(imd, x - (imd->vis_width / 2), y - (imd->vis_height / 2));
+ }
+ }
+ else
+ {
+ g_object_unref(imd->pixbuf);
+ imd->pixbuf = new;
+ }
+}
+
+static void image_post_process(ImageWindow *imd, gint clamp)
+{
+ if (exif_rotate_enable && imd->pixbuf)
+ {
+ ExifData *ed;
+ gint orientation;
+
+ ed = exif_read(imd->image_path);
+ if (ed && exif_get_integer(ed, "Orientation", &orientation))
+ {
+ /* see http://jpegclub.org/exif_orientation.html
+ 1 2 3 4 5 6 7 8
+
+ 888888 888888 88 88 8888888888 88 88 8888888888
+ 88 88 88 88 88 88 88 88 88 88 88 88
+ 8888 8888 8888 8888 88 8888888888 8888888888 88
+ 88 88 88 88
+ 88 88 888888 888888
+ */
+
+ switch (orientation)
+ {
+ case EXIF_ORIENTATION_TOP_LEFT:
+ /* normal -- nothing to do */
+ break;
+ case EXIF_ORIENTATION_TOP_RIGHT:
+ /* mirrored */
+ imd->delay_alter_type = ALTER_MIRROR;
+ break;
+ case EXIF_ORIENTATION_BOTTOM_RIGHT:
+ /* upside down */
+ imd->delay_alter_type = ALTER_ROTATE_180;
+ break;
+ case EXIF_ORIENTATION_BOTTOM_LEFT:
+ /* flipped */
+ imd->delay_alter_type = ALTER_FLIP;
+ break;
+ case EXIF_ORIENTATION_LEFT_TOP:
+ /* not implemented -- too wacky to fix in one step */
+ break;
+ case EXIF_ORIENTATION_RIGHT_TOP:
+ /* rotated -90 (270) */
+ imd->delay_alter_type = ALTER_ROTATE_90;
+ break;
+ case EXIF_ORIENTATION_RIGHT_BOTTOM:
+ /* not implemented -- too wacky to fix in one step */
+ break;
+ case EXIF_ORIENTATION_LEFT_BOTTOM:
+ /* rotated 90 */
+ imd->delay_alter_type = ALTER_ROTATE_90_CC;
+ break;
+ default:
+ /* The other values are out of range */
+ break;
+ }
+ }
+ exif_free(ed);
+ }
+
+ if (imd->delay_alter_type != ALTER_NONE)
+ {
+ image_alter_real(imd, imd->delay_alter_type, clamp);
+ }
+}
+
+/*
+ *-------------------------------------------------------------------
+ * read ahead (prebuffer)
+ *-------------------------------------------------------------------
+ */
+
+static void image_read_ahead_cancel(ImageWindow *imd)
+{
+ if (debug) printf("read ahead cancelled for :%s\n", imd->read_ahead_path);
+
+ image_loader_free(imd->read_ahead_il);
+ imd->read_ahead_il = NULL;
+
+ if (imd->read_ahead_pixbuf) g_object_unref(imd->read_ahead_pixbuf);
+ imd->read_ahead_pixbuf = NULL;
+
+ g_free(imd->read_ahead_path);
+ imd->read_ahead_path = NULL;
+}
+
+static void image_read_ahead_done_cb(ImageLoader *il, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (debug) printf("read ahead done for :%s\n", imd->read_ahead_path);
+
+ imd->read_ahead_pixbuf = image_loader_get_pixbuf(imd->read_ahead_il);
+ if (imd->read_ahead_pixbuf)
+ {
+ g_object_ref(imd->read_ahead_pixbuf);
+ }
+ else
+ {
+ imd->read_ahead_pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
+ }
+ image_loader_free(imd->read_ahead_il);
+ imd->read_ahead_il = NULL;
+
+ image_complete_util(imd, TRUE);
+}
+
+static void image_read_ahead_error_cb(ImageLoader *il, gpointer data)
+{
+ /* we even treat errors as success, maybe at least some of the file was ok */
+ image_read_ahead_done_cb(il, data);
+}
+
+static void image_read_ahead_start(ImageWindow *imd)
+{
+ /* already started ? */
+ if (!imd->read_ahead_path || imd->read_ahead_il || imd->read_ahead_pixbuf) return;
+
+ /* still loading ?, do later */
+ if (imd->il) return;
+
+ if (debug) printf("read ahead started for :%s\n", imd->read_ahead_path);
+
+ imd->read_ahead_il = image_loader_new(imd->read_ahead_path);
+
+ image_loader_set_error_func(imd->read_ahead_il, image_read_ahead_error_cb, imd);
+ if (!image_loader_start(imd->read_ahead_il, image_read_ahead_done_cb, imd))
+ {
+ image_read_ahead_cancel(imd);
+ image_complete_util(imd, TRUE);
+ }
+}
+
+static void image_read_ahead_set(ImageWindow *imd, const gchar *path)
+{
+ if (imd->read_ahead_path && path && strcmp(imd->read_ahead_path, path) == 0) return;
+
+ image_read_ahead_cancel(imd);
+
+ imd->read_ahead_path = g_strdup(path);
+
+ if (debug) printf("read ahead set to :%s\n", imd->read_ahead_path);
+
+ image_read_ahead_start(imd);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * post buffering
+ *-------------------------------------------------------------------
+ */
+
+static void image_post_buffer_set(ImageWindow *imd, const gchar *path, GdkPixbuf *pixbuf)
+{
+ g_free(imd->prev_path);
+ if (imd->prev_pixbuf) g_object_unref(imd->prev_pixbuf);
+
+ if (path && pixbuf)
+ {
+ imd->prev_path = g_strdup(path);
+
+ g_object_ref(pixbuf);
+ imd->prev_pixbuf = pixbuf;
+ }
+ else
+ {
+ imd->prev_path = NULL;
+ imd->prev_pixbuf = NULL;
+ }
+
+ if (debug) printf("post buffer set: %s\n", path);
+}
+
+static gint image_post_buffer_get(ImageWindow *imd)
+{
+ gint success;
+
+ if (imd->prev_pixbuf &&
+ imd->image_path && imd->prev_path && strcmp(imd->image_path, imd->prev_path) == 0)
+ {
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = imd->prev_pixbuf;
+ success = TRUE;
+ }
+ else
+ {
+ if (imd->prev_pixbuf) g_object_unref(imd->prev_pixbuf);
+ success = FALSE;
+ }
+
+ imd->prev_pixbuf = NULL;
+
+ g_free(imd->prev_path);
+ imd->prev_path = NULL;
+
+ return success;
+}
+
+/*
+ *-------------------------------------------------------------------
+ * loading
+ *-------------------------------------------------------------------
+ */
+
+static void image_load_pixbuf_ready(ImageWindow *imd)
+{
+ if (imd->pixbuf || !imd->il) return;
+
+ imd->pixbuf = image_loader_get_pixbuf(imd->il);
+
+ if (imd->pixbuf) g_object_ref(imd->pixbuf);
+
+ image_pixbuf_sync(imd, imd->zoom, TRUE, TRUE);
+}
+
+static void image_load_area_cb(ImageLoader *il, guint x, guint y, guint w, guint h, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (imd->delay_flip &&
+ imd->pixbuf != image_loader_get_pixbuf(il))
+ {
+ return;
+ }
+
+ if (!imd->pixbuf) image_load_pixbuf_ready(imd);
+
+ if (imd->scale != 1.0)
+ {
+ x = (guint) floor((double)x * imd->scale);
+ y = (guint) floor((double)y * imd->scale);
+ w = (guint) ceil((double)w * imd->scale);
+ h = (guint) ceil((double)h * imd->scale);
+
+ if (w == 0) w = 1;
+ if (h == 0) h = 1;
+
+ if ((GdkInterpType)zoom_quality != GDK_INTERP_NEAREST)
+ {
+ /* some scaling types use surrounding pixels to smooth the image,
+ * this will expand the new area to cover up for faint black
+ * lines caused by previous renders with non-complete image
+ */
+ y -= 1;
+ h += 2;
+ }
+
+ }
+
+ image_queue(imd, (gint) x, (gint) y, (gint) w, (gint) h, FALSE, TILE_RENDER_AREA, TRUE);
+}
+
+static void image_load_done_cb(ImageLoader *il, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (debug) printf ("image done\n");
+
+ if (imd->delay_flip &&
+ imd->pixbuf != image_loader_get_pixbuf(imd->il))
+ {
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = image_loader_get_pixbuf(imd->il);
+ if (imd->pixbuf) g_object_ref(imd->pixbuf);
+ image_pixbuf_sync(imd, imd->zoom, FALSE, TRUE);
+ }
+
+ image_loader_free(imd->il);
+ imd->il = NULL;
+
+ image_post_process(imd, TRUE);
+
+ image_read_ahead_start(imd);
+}
+
+static void image_load_error_cb(ImageLoader *il, gpointer data)
+{
+ if (debug) printf ("image error\n");
+
+ /* even on error handle it like it was done,
+ * since we have a pixbuf with _something_ */
+
+ image_load_done_cb(il, data);
+}
+
+#ifdef IMAGE_THROTTLE_LARGER_IMAGES
+static void image_load_buffer_throttle(ImageLoader *il)
+{
+ if (!il || il->bytes_total < IMAGE_THROTTLE_THRESHOLD) return;
+
+ /* Larger image files usually have larger chunks of data per pixel...
+ * So increase the buffer read size so that the rendering chunks called
+ * are also larger.
+ */
+
+ image_loader_set_buffer_size(il, IMAGE_LOAD_BUFFER_COUNT * IMAGE_THROTTLE_FACTOR);
+}
+#endif
+
+/* this read ahead is located here merely for the callbacks, above */
+
+static gint image_read_ahead_check(ImageWindow *imd)
+{
+ if (!imd->read_ahead_path) return FALSE;
+ if (imd->il) return FALSE;
+
+ if (!imd->image_path || strcmp(imd->read_ahead_path, imd->image_path) != 0)
+ {
+ image_read_ahead_cancel(imd);
+ return FALSE;
+ }
+
+ if (imd->read_ahead_il)
+ {
+ imd->il = imd->read_ahead_il;
+ imd->read_ahead_il = NULL;
+
+ /* override the old signals */
+ image_loader_set_area_ready_func(imd->il, image_load_area_cb, imd);
+ image_loader_set_error_func(imd->il, image_load_error_cb, imd);
+ image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
+
+#ifdef IMAGE_THROTTLE_LARGER_IMAGES
+ image_load_buffer_throttle(imd->il);
+#endif
+
+ /* do this one directly (probably should add a set func) */
+ imd->il->func_done = image_load_done_cb;
+
+ if (!imd->delay_flip)
+ {
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = image_loader_get_pixbuf(imd->il);
+ if (imd->pixbuf) g_object_ref(imd->pixbuf);
+ }
+
+ image_read_ahead_cancel(imd);
+ return TRUE;
+ }
+ else if (imd->read_ahead_pixbuf)
+ {
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = imd->read_ahead_pixbuf;
+ imd->read_ahead_pixbuf = NULL;
+
+ image_read_ahead_cancel(imd);
+
+ image_post_process(imd, FALSE);
+ return TRUE;
+ }
+
+ image_read_ahead_cancel(imd);
+ return FALSE;
+}
+
+static gint image_load_begin(ImageWindow *imd, const gchar *path)
+{
+ if (debug) printf ("image begin \n");
+
+ if (imd->il) return FALSE;
+
+ imd->completed = FALSE;
+
+ if (image_post_buffer_get(imd))
+ {
+ if (debug) printf("from post buffer: %s\n", imd->image_path);
+
+ image_pixbuf_sync(imd, imd->zoom, FALSE, TRUE);
+ return TRUE;
+ }
+
+ if (image_read_ahead_check(imd))
+ {
+ if (debug) printf("from read ahead buffer: %s\n", imd->image_path);
+
+ if (!imd->delay_flip || !imd->il) image_pixbuf_sync(imd, imd->zoom, FALSE, TRUE);
+ return TRUE;
+ }
+
+ if (!imd->delay_flip && imd->pixbuf)
+ {
+ g_object_unref(imd->pixbuf);
+ imd->pixbuf = NULL;
+ }
+
+ imd->il = image_loader_new(path);
+
+ image_loader_set_area_ready_func(imd->il, image_load_area_cb, imd);
+ image_loader_set_error_func(imd->il, image_load_error_cb, imd);
+ image_loader_set_buffer_size(imd->il, IMAGE_LOAD_BUFFER_COUNT);
+
+ if (!image_loader_start(imd->il, image_load_done_cb, imd))
+ {
+ if (debug) printf("image start error\n");
+
+ image_loader_free(imd->il);
+ imd->il = NULL;
+
+ image_complete_util(imd, FALSE);
+
+ return FALSE;
+ }
+
+#ifdef IMAGE_THROTTLE_LARGER_IMAGES
+ image_load_buffer_throttle(imd->il);
+#endif
+
+ if (!imd->delay_flip && !imd->pixbuf) image_load_pixbuf_ready(imd);
+
+ return TRUE;
+}
+
+static void image_reset(ImageWindow *imd)
+{
+ /* stops anything currently being done */
+
+ if (debug) printf("image reset\n");
+
+ image_loader_free(imd->il);
+ imd->il = NULL;
+
+ image_queue_clear(imd);
+ imd->delay_alter_type = ALTER_NONE;
+}
+
+/*
+ *-------------------------------------------------------------------
+ * image changer
+ *-------------------------------------------------------------------
+ */
+
+static void image_change_complete(ImageWindow *imd, gdouble zoom, gint new)
+{
+ gint sync = TRUE;
+
+ imd->zoom = zoom; /* store the zoom, needed by the loader */
+
+ image_reset(imd);
+
+ if (imd->image_path && isfile(imd->image_path))
+ {
+ if (image_load_begin(imd, imd->image_path))
+ {
+ imd->unknown = FALSE;
+ sync = FALSE;
+ }
+ else
+ {
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
+ imd->unknown = TRUE;
+ }
+ imd->size = filesize(imd->image_path);
+ imd->mtime = filetime(imd->image_path);
+ }
+ else
+ {
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = NULL;
+
+ if (imd->image_path)
+ {
+ imd->pixbuf = pixbuf_inline(PIXBUF_INLINE_BROKEN);
+ imd->mtime = filetime(imd->image_path);
+ }
+ else
+ {
+ imd->pixbuf = NULL;
+ imd->mtime = 0;
+ }
+ imd->unknown = TRUE;
+ imd->size = 0;
+ }
+
+ if (sync)
+ {
+ image_pixbuf_sync(imd, zoom, FALSE, new);
+ }
+ else
+ {
+ image_update_util(imd);
+ }
+}
+
+static void image_change_real(ImageWindow *imd, const gchar *path,
+ CollectionData *cd, CollectInfo *info, gdouble zoom)
+{
+ GdkPixbuf *prev_pixbuf = NULL;
+ gchar *prev_path = NULL;
+ gint prev_clear = FALSE;
+
+ imd->collection = cd;
+ imd->collection_info = info;
+
+ if (enable_read_ahead && imd->image_path && imd->pixbuf)
+ {
+ if (imd->il)
+ {
+ /* current image is not finished */
+ prev_clear = TRUE;
+ }
+ else
+ {
+ prev_path = g_strdup(imd->image_path);
+ prev_pixbuf = imd->pixbuf;
+ g_object_ref(prev_pixbuf);
+ }
+ }
+
+ g_free(imd->image_path);
+ imd->image_path = g_strdup(path);
+ imd->image_name = filename_from_path(imd->image_path);
+
+ image_change_complete(imd, zoom, TRUE);
+
+ if (prev_pixbuf)
+ {
+ image_post_buffer_set(imd, prev_path, prev_pixbuf);
+ g_free(prev_path);
+ g_object_unref(prev_pixbuf);
+ }
+ else if (prev_clear)
+ {
+ image_post_buffer_set(imd, NULL, NULL);
+ }
+
+ image_update_title(imd);
+ image_new_util(imd);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * callbacks
+ *-------------------------------------------------------------------
+ */
+
+static gint image_expose_cb(GtkWidget *widget, GdkEventExpose *event, gpointer data)
+{
+ gint x, y;
+
+ ImageWindow *imd = data;
+
+ image_border_draw(imd, event->area.x, event->area.y,
+ event->area.width, event->area.height);
+
+ /* image */
+ x = MAX(0, (gint)event->area.x - imd->x_offset + imd->x_scroll);
+ y = MAX(0, (gint)event->area.y - imd->y_offset + imd->y_scroll);
+
+ image_queue(imd, x, y,
+ MIN((gint)event->area.width, imd->width - x),
+ MIN((gint)event->area.height, imd->height - y),
+ FALSE, TILE_RENDER_ALL, FALSE);
+
+ return TRUE;
+}
+
+static void image_size_cb(GtkWidget *widget, GtkAllocation *allocation, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ image_size_sync(imd, allocation->width, allocation->height);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * focus stuff
+ *-------------------------------------------------------------------
+ */
+
+static void image_focus_paint(ImageWindow *imd, gint has_focus, GdkRectangle *area)
+{
+ GtkWidget *widget;
+
+ widget = imd->widget;
+ if (!widget->window) return;
+
+ if (has_focus)
+ {
+ gtk_paint_focus (widget->style, widget->window, GTK_STATE_ACTIVE,
+ area, widget, "image_window",
+ widget->allocation.x, widget->allocation.y,
+ widget->allocation.width - 1, widget->allocation.height - 1);
+ }
+ else
+ {
+ gtk_paint_shadow (widget->style, widget->window, GTK_STATE_NORMAL, GTK_SHADOW_IN,
+ area, widget, "image_window",
+ widget->allocation.x, widget->allocation.y,
+ widget->allocation.width - 1, widget->allocation.height - 1);
+ }
+}
+
+static gint image_focus_expose(GtkWidget *widget, GdkEventExpose *event, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ image_focus_paint(imd, GTK_WIDGET_HAS_FOCUS(widget), &event->area);
+ return TRUE;
+}
+
+static gint image_focus_in_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ GTK_WIDGET_SET_FLAGS(imd->widget, GTK_HAS_FOCUS);
+ image_focus_paint(imd, TRUE, NULL);
+
+ return TRUE;
+}
+
+static gint image_focus_out_cb(GtkWidget *widget, GdkEventFocus *event, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ GTK_WIDGET_UNSET_FLAGS(imd->widget, GTK_HAS_FOCUS);
+ image_focus_paint(imd, FALSE, NULL);
+
+ return TRUE;
+}
+
+
+/*
+ *-------------------------------------------------------------------
+ * overlays
+ *-------------------------------------------------------------------
+ */
+
+static void image_overlay_draw(ImageWindow *imd, gint x, gint y, gint w, gint h)
+{
+ GList *work;
+
+ work = imd->overlay_list;
+ while (work)
+ {
+ OverlayData *od;
+ gint px, py, pw, ph;
+ gint rx, ry, rw, rh;
+
+ od = work->data;
+ work = work->next;
+
+ if (!od->visible) continue;
+
+ pw = gdk_pixbuf_get_width(od->pixbuf);
+ ph = gdk_pixbuf_get_height(od->pixbuf);
+ px = od->x;
+ py = od->y;
+
+ if (od->relative)
+ {
+ if (px < 0) px = imd->window_width - pw + px;
+ if (py < 0) py = imd->window_height - ph + py;
+ }
+
+ if (util_clip_region(x, y, w, h, px, py, pw, ph, &rx, &ry, &rw, &rh))
+ {
+ gdk_draw_pixbuf(imd->image->window,
+ imd->image->style->fg_gc[GTK_WIDGET_STATE(imd->image)],
+ od->pixbuf,
+ rx - px, ry - py,
+ rx, ry, rw, rh,
+ (GdkRgbDither)dither_quality, rx, ry);
+ }
+ }
+}
+
+static void image_overlay_queue_draw(ImageWindow *imd, OverlayData *od, gint hidden)
+{
+ gint x, y, w, h;
+ gint old_vis;
+
+ w = gdk_pixbuf_get_width(od->pixbuf);
+ h = gdk_pixbuf_get_height(od->pixbuf);
+ x = od->x;
+ y = od->y;
+
+ if (od->relative)
+ {
+ if (x < 0) x = imd->window_width - w + x;
+ if (y < 0) y = imd->window_height - h + y;
+ }
+
+ image_queue(imd, imd->x_scroll - imd->x_offset + x,
+ imd->y_scroll - imd->y_offset + y,
+ w, h,
+ FALSE, TILE_RENDER_ALL, FALSE);
+
+ old_vis = od->visible;
+ if (hidden) od->visible = FALSE;
+ image_border_draw(imd, x, y, w, h);
+ od->visible = old_vis;
+}
+
+static void image_overlay_queue_all(ImageWindow *imd)
+{
+ GList *work;
+
+ work = imd->overlay_list;
+ while (work)
+ {
+ OverlayData *od = work->data;
+ work = work->next;
+
+ image_overlay_queue_draw(imd, od, FALSE);
+ }
+}
+
+static OverlayData *image_overlay_find(ImageWindow *imd, gint id)
+{
+ GList *work;
+
+ work = imd->overlay_list;
+ while (work)
+ {
+ OverlayData *od = work->data;
+ work = work->next;
+
+ if (od->id == id) return od;
+ }
+
+ return NULL;
+}
+
+gint image_overlay_add(ImageWindow *imd, GdkPixbuf *pixbuf, gint x, gint y,
+ gint relative, gint always)
+{
+ OverlayData *od;
+ gint id;
+
+ if (!imd || !pixbuf) return -1;
+
+ id = 1;
+ while (image_overlay_find(imd, 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->relative = relative;
+ od->visible = TRUE;
+ od->always = always;
+
+ imd->overlay_list = g_list_append(imd->overlay_list, od);
+
+ image_overlay_queue_draw(imd, od, FALSE);
+
+ return od->id;
+}
+
+static void image_overlay_free(ImageWindow *imd, OverlayData *od)
+{
+ imd->overlay_list = g_list_remove(imd->overlay_list, od);
+
+ if (od->pixbuf) g_object_unref(G_OBJECT(od->pixbuf));
+ g_free(od);
+}
+
+static void image_overlay_list_clear(ImageWindow *imd)
+{
+ while (imd->overlay_list)
+ {
+ OverlayData *od;
+
+ od = imd->overlay_list->data;
+ image_overlay_free(imd, od);
+ }
+}
+
+void image_overlay_set(ImageWindow *imd, gint id, GdkPixbuf *pixbuf, gint x, gint y)
+{
+ OverlayData *od;
+
+ if (!imd) return;
+
+ od = image_overlay_find(imd, id);
+ if (!od) return;
+
+ if (pixbuf)
+ {
+ image_overlay_queue_draw(imd, od, TRUE);
+
+ g_object_ref(G_OBJECT(pixbuf));
+ g_object_unref(G_OBJECT(od->pixbuf));
+ od->pixbuf = pixbuf;
+
+ od->x = x;
+ od->y = y;
+
+ image_overlay_queue_draw(imd, od, FALSE);
+ }
+ else
+ {
+ image_overlay_queue_draw(imd, od, TRUE);
+ image_overlay_free(imd, od);
+ }
+}
+
+gint image_overlay_get(ImageWindow *imd, gint id, GdkPixbuf **pixbuf, gint *x, gint *y)
+{
+ OverlayData *od;
+
+ if (!imd) return FALSE;
+
+ od = image_overlay_find(imd, id);
+ if (!od) return FALSE;
+
+ if (pixbuf) *pixbuf = od->pixbuf;
+ if (x) *x = od->x;
+ if (y) *y = od->y;
+
+ return TRUE;
+}
+
+void image_overlay_remove(ImageWindow *imd, gint id)
+{
+ image_overlay_set(imd, id, NULL, 0, 0);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * scroller
+ *-------------------------------------------------------------------
+ */
+
+#define SCROLLER_UPDATES_PER_SEC 30
+#define SCROLLER_DEAD_ZONE 6
+
+
+static gboolean image_scroller_update_cb(gpointer data)
+{
+ ImageWindow *imd = 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(imd->scroller_xpos - imd->scroller_x) < SCROLLER_DEAD_ZONE)
+ {
+ x = 0;
+ }
+ else
+ {
+ gint shift = SCROLLER_DEAD_ZONE / 2 * SCROLLER_UPDATES_PER_SEC;
+ x = (imd->scroller_xpos - imd->scroller_x) / 2 * SCROLLER_UPDATES_PER_SEC;
+ x += (x > 0) ? -shift : shift;
+ }
+
+ if (abs(imd->scroller_ypos - imd->scroller_y) < SCROLLER_DEAD_ZONE)
+ {
+ y = 0;
+ }
+ else
+ {
+ gint shift = SCROLLER_DEAD_ZONE / 2 * SCROLLER_UPDATES_PER_SEC;
+ y = (imd->scroller_ypos - imd->scroller_y) / 2 * SCROLLER_UPDATES_PER_SEC;
+ y += (y > 0) ? -shift : shift;
+ }
+
+ if (abs(x) < SCROLLER_DEAD_ZONE * SCROLLER_UPDATES_PER_SEC)
+ {
+ xinc = x;
+ }
+ else
+ {
+ xinc = imd->scroller_xinc;
+
+ if (x >= 0)
+ {
+ if (xinc < 0) xinc = 0;
+ if (x < xinc) xinc = x;
+ if (x > xinc) xinc = MIN(xinc + x / SCROLLER_UPDATES_PER_SEC, x);
+ }
+ else
+ {
+ if (xinc > 0) xinc = 0;
+ if (x > xinc) xinc = x;
+ if (x < xinc) xinc = MAX(xinc + x / SCROLLER_UPDATES_PER_SEC, x);
+ }
+ }
+
+ if (abs(y) < SCROLLER_DEAD_ZONE * SCROLLER_UPDATES_PER_SEC)
+ {
+ yinc = y;
+ }
+ else
+ {
+ yinc = imd->scroller_yinc;
+
+ if (y >= 0)
+ {
+ if (yinc < 0) yinc = 0;
+ if (y < yinc) yinc = y;
+ if (y > yinc) yinc = MIN(yinc + y / SCROLLER_UPDATES_PER_SEC, y);
+ }
+ else
+ {
+ if (yinc > 0) yinc = 0;
+ if (y > yinc) yinc = y;
+ if (y < yinc) yinc = MAX(yinc + y / SCROLLER_UPDATES_PER_SEC, y);
+ }
+ }
+
+ imd->scroller_xinc = xinc;
+ imd->scroller_yinc = yinc;
+
+ xinc = xinc / SCROLLER_UPDATES_PER_SEC;
+ yinc = yinc / SCROLLER_UPDATES_PER_SEC;
+
+ image_scroll(imd, xinc, yinc);
+
+ return TRUE;
+}
+
+static void image_scroller_timer_set(ImageWindow *imd, gint start)
+{
+ if (imd->scroller_id != -1)
+ {
+ g_source_remove(imd->scroller_id);
+ imd->scroller_id = -1;
+ }
+
+ if (start)
+ {
+ imd->scroller_id = g_timeout_add(1000 / SCROLLER_UPDATES_PER_SEC,
+ image_scroller_update_cb, imd);
+ }
+}
+
+static void image_scroller_start(ImageWindow *imd, gint x, gint y)
+{
+ if (imd->scroller_overlay == -1)
+ {
+ GdkPixbuf *pixbuf;
+ gint w, h;
+
+ pixbuf = pixbuf_inline(PIXBUF_INLINE_SCROLLER);
+ w = gdk_pixbuf_get_width(pixbuf);
+ h = gdk_pixbuf_get_height(pixbuf);
+
+ imd->scroller_overlay = image_overlay_add(imd, pixbuf, x - w / 2, y - h / 2, FALSE, TRUE);
+ }
+
+ imd->scroller_x = x;
+ imd->scroller_y = y;
+ imd->scroller_xpos = x;
+ imd->scroller_ypos = y;
+
+ image_scroller_timer_set(imd, TRUE);
+}
+
+static void image_scroller_stop(ImageWindow *imd)
+{
+ if (imd->scroller_id == -1) return;
+
+ image_overlay_remove(imd, imd->scroller_overlay);
+ imd->scroller_overlay = -1;
+
+ image_scroller_timer_set(imd, FALSE);
+}
+
+/*
+ *-------------------------------------------------------------------
+ * mouse stuff
+ *-------------------------------------------------------------------
+ */
+
+static gint image_mouse_motion_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (imd->scroller_id != -1)
+ {
+ imd->scroller_xpos = bevent->x;
+ imd->scroller_ypos = bevent->y;
+ }
+
+ if (!imd->in_drag || !gdk_pointer_is_grabbed()) return FALSE;
+
+ if (imd->drag_moved < IMAGE_DRAG_SCROLL_THRESHHOLD)
+ {
+ imd->drag_moved++;
+ }
+ else
+ {
+ widget_set_cursor (imd->image, GDK_FLEUR);
+ }
+
+ /* do the scroll */
+ image_scroll_real(imd, imd->drag_last_x - bevent->x, imd->drag_last_y - bevent->y);
+
+ imd->drag_last_x = bevent->x;
+ imd->drag_last_y = bevent->y;
+
+ return FALSE;
+}
+
+static gint image_mouse_press_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (imd->scroller_id != -1) return TRUE;
+
+ switch (bevent->button)
+ {
+ case 1:
+ imd->in_drag = TRUE;
+ imd->drag_last_x = bevent->x;
+ imd->drag_last_y = bevent->y;
+ imd->drag_moved = 0;
+ gdk_pointer_grab(imd->image->window, FALSE,
+ GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK,
+ NULL, NULL, bevent->time);
+ gtk_grab_add(imd->image);
+ break;
+ case 2:
+ imd->drag_moved = 0;
+ break;
+ case 3:
+ image_button_do(imd, bevent);
+ break;
+ default:
+ break;
+ }
+
+ gtk_widget_grab_focus(imd->widget);
+
+ return FALSE;
+}
+
+static gint image_mouse_release_cb(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (imd->scroller_id != -1)
+ {
+ image_scroller_stop(imd);
+ return TRUE;
+ }
+
+ if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB(imd->image))
+ {
+ gtk_grab_remove(imd->image);
+ gdk_pointer_ungrab(bevent->time);
+ widget_set_cursor(imd->image, -1);
+ }
+
+ if (bevent->button == 1 && (bevent->state & GDK_SHIFT_MASK))
+ {
+ image_scroller_start(imd, bevent->x, bevent->y);
+ }
+ else if (bevent->button == 1 || bevent->button == 2)
+ {
+ if (imd->drag_moved < IMAGE_DRAG_SCROLL_THRESHHOLD) image_button_do(imd, bevent);
+ }
+
+ imd->in_drag = FALSE;
+
+ return FALSE;
+}
+
+static gint image_mouse_leave_cb(GtkWidget *widget, GdkEventCrossing *event, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (imd->scroller_id != -1)
+ {
+ imd->scroller_xpos = imd->scroller_x;
+ imd->scroller_ypos = imd->scroller_y;
+ imd->scroller_xinc = 0;
+ imd->scroller_yinc = 0;
+ }
+
+ return FALSE;
+}
+
+static gint image_scroll_cb(GtkWidget *widget, GdkEventScroll *event, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ if (imd->func_scroll &&
+ event && event->type == GDK_SCROLL)
+ {
+ imd->func_scroll(imd, event->direction, event->time,
+ event->x, event->y, event->state, imd->data_scroll);
+ return TRUE;
}
- h = gtk_viewport_get_hadjustment(GTK_VIEWPORT(imd->viewport));
- v = gtk_viewport_get_vadjustment(GTK_VIEWPORT(imd->viewport));
+ return FALSE;
+}
+
+static void image_mouse_drag_cb(GtkWidget *widget, GdkDragContext *context, gpointer data)
+{
+ ImageWindow *imd = data;
+
+ imd->drag_moved = IMAGE_DRAG_SCROLL_THRESHHOLD;
+}
+
+/*
+ *-------------------------------------------------------------------
+ * drag and drop
+ *-------------------------------------------------------------------
+ */
+
+/*
+ *-------------------------------------------------------------------
+ * public interface
+ *-------------------------------------------------------------------
+ */
+
+void image_attach_window(ImageWindow *imd, GtkWidget *window,
+ const gchar *title, const gchar *title_right, gint show_zoom)
+{
+ imd->top_window = window;
+ g_free(imd->title);
+ imd->title = g_strdup(title);
+ g_free(imd->title_right);
+ imd->title_right = g_strdup(title_right);
+ imd->title_show_zoom = show_zoom;
+
+ image_update_title(imd);
+}
+
+void image_set_update_func(ImageWindow *imd,
+ void (*func)(ImageWindow *imd, gpointer data),
+ gpointer data)
+{
+ imd->func_update = func;
+ imd->data_update = data;
+}
+
+void image_set_complete_func(ImageWindow *imd,
+ void (*func)(ImageWindow *, gint preload, gpointer),
+ gpointer data)
+{
+ imd->func_complete = func;
+ imd->data_complete = data;
+}
+
+void image_set_new_func(ImageWindow *imd,
+ void (*func)(ImageWindow *, gpointer),
+ gpointer data)
+{
+ imd->func_new = func;
+ imd->data_new = data;
+}
+
+
+static void image_button_do(ImageWindow *imd, GdkEventButton *bevent)
+{
+ if (imd->func_button &&
+ bevent &&
+ (bevent->type == GDK_BUTTON_PRESS || bevent->type == GDK_BUTTON_RELEASE))
+ {
+ imd->func_button(imd, bevent->button, bevent->time,
+ bevent->x, bevent->y, bevent->state, imd->data_button);
+ }
+}
+
+void image_set_button_func(ImageWindow *imd,
+ void (*func)(ImageWindow *, gint button, guint32 time, gdouble x, gdouble y, guint state, gpointer),
+ gpointer data)
+{
+ imd->func_button = func;
+ imd->data_button = data;
+}
+
+void image_set_scroll_func(ImageWindow *imd,
+ void (*func)(ImageWindow *, GdkScrollDirection direction, guint32 time, gdouble x, gdouble y, guint state, gpointer),
+ gpointer data)
+{
+ imd->func_scroll = func;
+ imd->data_scroll = data;
+}
+
+/* path, name */
+
+const gchar *image_get_path(ImageWindow *imd)
+{
+ return imd->image_path;
+}
+
+const gchar *image_get_name(ImageWindow *imd)
+{
+ return imd->image_name;
+}
+
+/* merely changes path string, does not change the image! */
+void image_set_path(ImageWindow *imd, const gchar *newpath)
+{
+ g_free(imd->image_path);
+ imd->image_path = g_strdup(newpath);
+ imd->image_name = filename_from_path(imd->image_path);
+
+ image_update_title(imd);
+ image_new_util(imd);
+}
+
+/* load a new image */
+
+void image_change_path(ImageWindow *imd, const gchar *path, gdouble zoom)
+{
+ if (imd->image_path == path ||
+ (path && imd->image_path && !strcmp(path, imd->image_path)) ) return;
+
+ image_change_real(imd, path, NULL, NULL, zoom);
+}
+
+void image_change_pixbuf(ImageWindow *imd, GdkPixbuf *pixbuf, gdouble zoom)
+{
+ image_set_pixbuf(imd, pixbuf, zoom, TRUE);
+ image_new_util(imd);
+}
+
+void image_change_from_collection(ImageWindow *imd, CollectionData *cd, CollectInfo *info, gdouble zoom)
+{
+ if (!cd || !info || !g_list_find(cd->list, info)) return;
- x = imd->drag_last_x - bevent->x;
- y = imd->drag_last_y - bevent->y;
+ image_change_real(imd, info->path, cd, info, zoom);
+}
- /* x */
- if (h->upper - h->page_size > 0)
+CollectionData *image_get_collection(ImageWindow *imd, CollectInfo **info)
+{
+ if (collection_to_number(imd->collection) >= 0)
{
- val = (float)h->value + x;
- if (val < 0 ) val = 0;
- if (val > h->upper - h->page_size) val = h->upper - h->page_size;
- h->value = val;
- gtk_adjustment_set_value (GTK_ADJUSTMENT(h), val);
+ if (g_list_find(imd->collection->list, imd->collection_info) != NULL)
+ {
+ if (info) *info = imd->collection_info;
+ }
+ else
+ {
+ if (info) *info = NULL;
+ }
+ return imd->collection;
}
- /* y */
- if (v->upper - v->page_size > 0)
+ if (info) *info = NULL;
+ return NULL;
+}
+
+static void image_loader_sync_data(ImageLoader *il, gpointer data)
+{
+ /* change data for the callbacks directly */
+
+ il->data_area_ready = data;
+ il->data_error = data;
+ il->data_done = data;
+ il->data_percent = data;
+}
+
+/* this is more like a move function
+ * it moves most data from source to imd, source does keep a ref on the pixbuf
+ */
+void image_change_from_image(ImageWindow *imd, ImageWindow *source)
+{
+ if (imd == source) return;
+
+ imd->unknown = source->unknown;
+
+ image_set_pixbuf(imd, source->pixbuf, image_zoom_get(source), TRUE);
+
+ imd->collection = source->collection;
+ imd->collection_info = source->collection_info;
+ imd->size = source->size;
+ imd->mtime = source->mtime;
+
+ image_set_path(imd, image_get_path(source));
+
+ image_loader_free(imd->il);
+ imd->il = NULL;
+
+ if (imd->pixbuf && source->il)
{
- val = v->value + y;
- if (val < 0 ) val = 0;
- if (val > v->upper - v->page_size) val = v->upper - v->page_size;
- v->value = val;
- gtk_adjustment_set_value (GTK_ADJUSTMENT(v), val);
+ imd->il = source->il;
+ source->il = NULL;
+
+ image_loader_sync_data(imd->il, imd);
+
+ imd->delay_alter_type = source->delay_alter_type;
+ source->delay_alter_type = ALTER_NONE;
}
- gtk_adjustment_value_changed(h);
- gtk_adjustment_value_changed(v);
+ image_loader_free(imd->read_ahead_il);
+ imd->read_ahead_il = source->read_ahead_il;
+ source->read_ahead_il = NULL;
+ if (imd->read_ahead_il) image_loader_sync_data(imd->read_ahead_il, imd);
- imd->drag_last_x = bevent->x;
- imd->drag_last_y = bevent->y;
+ if (imd->read_ahead_pixbuf) g_object_unref(imd->read_ahead_pixbuf);
+ imd->read_ahead_pixbuf = source->read_ahead_pixbuf;
+ source->read_ahead_pixbuf = NULL;
+
+ g_free(imd->read_ahead_path);
+ imd->read_ahead_path = source->read_ahead_path;
+ source->read_ahead_path = NULL;
+
+ if (imd->prev_pixbuf) g_object_unref(imd->prev_pixbuf);
+ imd->prev_pixbuf = source->prev_pixbuf;
+ source->prev_pixbuf = NULL;
+
+ g_free(imd->prev_path);
+ imd->prev_path = source->prev_path;
+ source->prev_path = NULL;
+
+ imd->completed = source->completed;
+
+ imd->x_scroll = source->x_scroll;
+ imd->y_scroll = source->y_scroll;
+
+ image_scroll_clamp(imd);
}
-static void image_area_mouse_pressed(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
+/* manipulation */
+
+void image_area_changed(ImageWindow *imd, gint x, gint y, gint width, gint height)
{
- ImageWindow *imd = data;
- switch (bevent->button)
+ gint sx, sy, sw, sh;
+
+ sx = (gint)floor((double)x * imd->scale);
+ sy = (gint)floor((double)y * imd->scale);
+ sw = (gint)ceil((double)width * imd->scale);
+ sh = (gint)ceil((double)height * imd->scale);
+
+ image_queue(imd, sx, sy, sw, sh, FALSE, TILE_RENDER_AREA, TRUE);
+}
+
+void image_reload(ImageWindow *imd)
+{
+ image_change_complete(imd, imd->zoom, FALSE);
+}
+
+void image_scroll(ImageWindow *imd, gint x, gint y)
+{
+ image_scroll_real(imd, x, y);
+}
+
+void image_alter(ImageWindow *imd, AlterType type)
+{
+ if (imd->il)
{
- case 1:
- imd->in_drag = TRUE;
- imd->drag_last_x = bevent->x;
- imd->drag_last_y = bevent->y;
- imd->drag_moved = 0;
- gdk_pointer_grab (imd->eventbox->window, FALSE,
- GDK_POINTER_MOTION_MASK |
- GDK_BUTTON_RELEASE_MASK,
- NULL, NULL, bevent->time);
- gtk_grab_add (imd->eventbox);
- break;
- case 2:
- imd->drag_moved = 0;
- break;
- case 3:
- if (imd->func_btn3)
- imd->func_btn3(imd, bevent, imd->data_btn3);
- break;
- case 4:
- if (imd->func_btn4)
- imd->func_btn4(imd, bevent, imd->data_btn4);
- break;
- case 5:
- if (imd->func_btn5)
- imd->func_btn5(imd, bevent, imd->data_btn5);
- break;
- default:
- break;
+ /* still loading, wait till done */
+ imd->delay_alter_type = type;
+ return;
}
- gtk_widget_grab_focus(imd->viewport);
+
+ image_alter_real(imd, type, TRUE);
}
-static void image_area_mouse_released(GtkWidget *widget, GdkEventButton *bevent, gpointer data)
+/* zoom */
+
+static void image_zoom_adjust_real(ImageWindow *imd, gdouble increment,
+ gint center_point, gint x, gint y)
{
- ImageWindow *imd = data;
- if (gdk_pointer_is_grabbed() && GTK_WIDGET_HAS_GRAB (imd->eventbox))
+ gdouble zoom = imd->zoom;
+
+ if (increment == 0.0) return; /* avoid possible div by zero, a no-op anyway... */
+
+ if (zoom == 0.0)
{
- gtk_grab_remove (imd->eventbox);
- gdk_pointer_ungrab (bevent->time);
- set_mouse_cursor (imd->eventbox->window, -1);
+ if (imd->scale < 1.0)
+ {
+ zoom = 0.0 - 1.0 / imd->scale;
+ }
+ else
+ {
+ zoom = imd->scale;
+ }
}
- if (bevent->button == 1)
+ if (increment < 0.0)
{
- if (imd->drag_moved < 4 && imd->func_btn1)
- imd->func_btn1(imd, bevent, imd->data_btn1);
+ if (zoom >= 1.0 && zoom + increment < 1.0)
+ {
+ zoom = zoom + increment - 2.0;
+ }
+ else
+ {
+ zoom = zoom + increment;
+ }
}
-
- if (bevent->button == 2)
+ else
{
- if (imd->drag_moved < 4 && imd->func_btn2)
- imd->func_btn2(imd, bevent, imd->data_btn2);
+ if (zoom <= -1.0 && zoom + increment > -1.0)
+ {
+ zoom = zoom + increment + 2.0;
+ }
+ else
+ {
+ zoom = zoom + increment;
+ }
}
- imd->in_drag = FALSE;
+ image_zoom_sync(imd, zoom, FALSE, FALSE, FALSE, center_point, x, y);
}
-static void image_area_mouse_drag(GtkWidget *widget, GdkDragContext *context, gpointer data)
+void image_zoom_adjust(ImageWindow *imd, gdouble increment)
{
- ImageWindow *imd = data;
- imd->drag_moved = 4;
+ image_zoom_adjust_real(imd, increment, FALSE, 0, 0);
}
-/*
- *-----------------------------------------------------------------------------
- * image widget setup routines
- *-----------------------------------------------------------------------------
- */
+void image_zoom_adjust_at_point(ImageWindow *imd, gdouble increment, gint x, gint y)
+{
+ image_zoom_adjust_real(imd, increment, TRUE, x, y);
+}
-void image_area_set_topwindow(ImageWindow *imd, GtkWidget *window, gchar *title, gint show_zoom)
+void image_zoom_set(ImageWindow *imd, gdouble zoom)
{
- imd->top_window = window;
- imd->show_title_zoom = show_zoom;
+ image_zoom_sync(imd, zoom, FALSE, FALSE, FALSE, FALSE, 0, 0);
+}
- g_free(imd->title);
- if (title)
- imd->title = g_strdup(title);
+void image_zoom_set_fill_geometry(ImageWindow *imd, gint vertical)
+{
+ gdouble zoom;
+
+ if (!imd->pixbuf || imd->image_width < 1 || imd->image_height < 1) return;
+
+ if (vertical)
+ {
+ zoom = (gdouble)imd->window_height / imd->image_height;
+ }
else
- imd->title = NULL;
+ {
+ zoom = (gdouble)imd->window_width / imd->image_width;
+ }
+
+ if (zoom < 1.0)
+ {
+ zoom = 0.0 - 1.0 / zoom;
+ }
+
+ image_zoom_set(imd, zoom);
+}
+
+gdouble image_zoom_get(ImageWindow *imd)
+{
+ return imd->zoom;
}
-void image_area_set_labels(ImageWindow *imd, GtkWidget *info, GtkWidget *zoom)
+gdouble image_zoom_get_real(ImageWindow *imd)
{
- imd->info_label = info;
- imd->zoom_label = zoom;
+ return imd->scale;
}
-void image_area_set_button(ImageWindow *imd, gint button,
- void (*func)(ImageWindow *, GdkEventButton *, gpointer), gpointer data)
+gchar *image_zoom_get_as_text(ImageWindow *imd)
{
- switch (button)
+ gdouble l = 1.0;
+ gdouble r = 1.0;
+ gint pl = 0;
+ gint pr = 0;
+ gchar *approx = " ";
+
+ if (imd->zoom > 0.0)
{
- case 1:
- imd->func_btn1 = func;
- imd->data_btn1 = data;
- break;
- case 2:
- imd->func_btn2 = func;
- imd->data_btn2 = data;
- break;
- case 3:
- imd->func_btn3 = func;
- imd->data_btn3 = data;
- break;
- case 4:
- imd->func_btn4 = func;
- imd->data_btn4 = data;
- break;
- case 5:
- imd->func_btn5 = func;
- imd->data_btn5 = data;
- break;
+ l = imd->zoom;
+ }
+ else if (imd->zoom < 0.0)
+ {
+ r = 0.0 - imd->zoom;
+ }
+ else if (imd->zoom == 0.0 && imd->scale != 0.0)
+ {
+ if (imd->scale >= 1.0)
+ {
+ l = imd->scale;
+ }
+ else
+ {
+ r = 1.0 / imd->scale;
+ }
+ approx = " ~";
}
+
+ if (rint(l) != l) pl = 1;
+ if (rint(r) != r) pr = 1;
+
+ return g_strdup_printf("%.*f :%s%.*f", pl, l, approx, pr, r);
}
-ImageWindow *image_area_new(GtkWidget *top_window)
+gdouble image_zoom_get_default(ImageWindow *imd, gint mode)
{
- GtkObject *h_adj;
- GtkObject *v_adj;
- ImageWindow *imd;
+ gdouble zoom;
- imd = g_new0(ImageWindow, 1);
- imd->zoom = 0;
+ if (mode == ZOOM_RESET_ORIGINAL)
+ {
+ zoom = 1.0;
+ }
+ else if (mode == ZOOM_RESET_FIT_WINDOW)
+ {
+ zoom = 0.0;
+ }
+ else
+ {
+ if (imd)
+ {
+ zoom = image_zoom_get(imd);
+ }
+ else
+ {
+ zoom = 1.0;
+ }
+ }
+
+ return zoom;
+}
+
+/* read ahead */
+
+void image_prebuffer_set(ImageWindow *imd, const gchar *path)
+{
+ if (path)
+ {
+ image_read_ahead_set(imd, path);
+ }
+ else
+ {
+ image_read_ahead_cancel(imd);
+ }
+}
- imd->top_window = top_window;
- imd->title = g_strdup("GQview - ");
- imd->show_title_zoom = FALSE;
- imd->new_img = FALSE;
+static gint image_auto_refresh_cb(gpointer data)
+{
+ ImageWindow *imd = data;
+ time_t newtime;
+
+ if (!imd || !imd->pixbuf ||
+ imd->il || !imd->image_path ||
+ !update_on_time_change) return TRUE;
+
+ newtime = filetime(imd->image_path);
+ if (newtime > 0 && newtime != imd->mtime)
+ {
+ imd->mtime = newtime;
+ image_reload(imd);
+ }
- imd->eventbox = gtk_event_box_new();
+ return TRUE;
+}
- gtk_signal_connect(GTK_OBJECT(imd->eventbox),"motion_notify_event",
- GTK_SIGNAL_FUNC(image_area_mouse_moved), imd);
- gtk_signal_connect(GTK_OBJECT(imd->eventbox),"button_press_event",
- GTK_SIGNAL_FUNC(image_area_mouse_pressed), imd);
- gtk_signal_connect(GTK_OBJECT(imd->eventbox),"button_release_event",
- GTK_SIGNAL_FUNC(image_area_mouse_released), imd);
- gtk_widget_set_events(imd->eventbox, GDK_POINTER_MOTION_MASK | GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK);
+/* image auto refresh on time stamp change, in 1/1000's second, -1 disables */
- /* viewer */
- h_adj = gtk_adjustment_new(0.0,0.0,0.0,1.0,1.0,1.0);
- v_adj = gtk_adjustment_new(0.0,0.0,0.0,1.0,1.0,1.0);
+void image_auto_refresh(ImageWindow *imd, gint interval)
+{
+ if (!imd) return;
- imd->viewport = gtk_viewport_new (GTK_ADJUSTMENT(h_adj), GTK_ADJUSTMENT(v_adj));
- gtk_container_add(GTK_CONTAINER(imd->eventbox), imd->viewport);
+ if (imd->auto_refresh_id > -1)
+ {
+ g_source_remove(imd->auto_refresh_id);
+ imd->auto_refresh_id = -1;
+ imd->auto_refresh_interval = -1;
+ }
- /* table for resize */
- imd->table = gtk_table_new (1,1,TRUE);
- gtk_container_add(GTK_CONTAINER (imd->viewport), imd->table);
+ if (interval < 0) return;
- /* imagewindow */
- imd->image = gtk_drawing_area_new();
- gtk_table_attach(GTK_TABLE (imd->table),imd->image,0,1,0,1,GTK_EXPAND,GTK_EXPAND,0,0);
+ if (interval == 0) interval = IMAGE_AUTO_REFRESH_TIME;
- gtk_signal_connect(GTK_OBJECT(imd->eventbox),"size_allocate",GTK_SIGNAL_FUNC(image_area_size_cb), imd);
- gtk_signal_connect(GTK_OBJECT(imd->image),"configure_event",GTK_SIGNAL_FUNC(image_area_update_cb), imd);
+ imd->auto_refresh_id = g_timeout_add((guint32)interval, image_auto_refresh_cb, imd);
+ imd->auto_refresh_interval = interval;
+}
- gtk_signal_connect(GTK_OBJECT(imd->viewport),"drag_begin",
- GTK_SIGNAL_FUNC(image_area_mouse_drag), imd);
+/* allow top window to be resized ? */
- return imd;
+void image_top_window_set_sync(ImageWindow *imd, gint allow_sync)
+{
+ imd->top_window_sync = allow_sync;
}
-void image_area_free(ImageWindow *imd)
+/* background colors */
+
+void image_background_set_black(ImageWindow *imd, gint black)
{
- g_free(imd->image_path);
- g_free(imd->title);
+ GtkStyle *style;
- if (imd->image_pixmap) gdk_imlib_free_pixmap(imd->image_pixmap);
- if (imd->image_data) gdk_imlib_destroy_image(imd->image_data);
+ if (!imd) return;
- g_free(imd);
+ style = gtk_style_copy(gtk_widget_get_style(imd->widget));
+ g_object_ref(G_OBJECT(style));
+
+ if (black)
+ {
+ style->bg[GTK_STATE_NORMAL] = style->black;
+ }
+
+ gtk_widget_set_style(imd->image, style);
+ g_object_unref(G_OBJECT(style));
+
+ if (GTK_WIDGET_VISIBLE(imd->widget)) image_border_clear(imd);
}
-gint get_default_zoom(ImageWindow *imd)
+void image_background_set_color(ImageWindow *imd, GdkColor *color)
{
- gint zoom;
+ GtkStyle *style;
- if (zoom_mode == ZOOM_RESET_ORIGINAL)
- {
- zoom = 1;
- }
- else if (zoom_mode == ZOOM_RESET_FIT_WINDOW)
+ if (!imd) return;
+
+ style = gtk_style_copy(gtk_widget_get_style(imd->widget));
+ g_object_ref(G_OBJECT(style));
+
+ if (color)
{
- zoom = 0;
+ GdkColor *slot;
+
+ slot = &style->bg[GTK_STATE_NORMAL];
+
+ slot->red = color->red;
+ slot->green = color->green;
+ slot->blue = color->blue;
}
- else
+
+ gtk_widget_set_style(imd->image, style);
+ g_object_unref(G_OBJECT(style));
+
+ if (GTK_WIDGET_VISIBLE(imd->widget)) image_border_clear(imd);
+}
+
+void image_set_delay_flip(ImageWindow *imd, gint delay)
+{
+ if (!imd ||
+ imd->delay_flip == delay) return;
+
+ imd->delay_flip = delay;
+ if (!imd->delay_flip && imd->il)
{
- if (imd)
- {
- zoom = image_area_get_zoom(imd);
- }
- else
- {
- zoom = 1;
- }
- }
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+ imd->pixbuf = NULL;
+ image_load_pixbuf_ready(imd);
- return zoom;
+ image_queue_clear(imd);
+ image_queue(imd, 0, 0, imd->width, imd->height, FALSE, TILE_RENDER_AREA, TRUE);
+ }
}
-/*
- *-----------------------------------------------------------------------------
- * image widget misc utils
- *-----------------------------------------------------------------------------
- */
-
-void image_area_to_root(ImageWindow *imd, gint scaled)
-{
- GdkVisual *gdkvisual;
+/* wallpaper util */
+
+void image_to_root_window(ImageWindow *imd, gint scaled)
+{
+ GdkScreen *screen;
GdkWindow *rootwindow;
GdkPixmap *pixmap;
+ GdkPixbuf *pb;
- if (!imd || !imd->image_data) return;
+ if (!imd || !imd->pixbuf) return;
- rootwindow = (GdkWindow *) &gdk_root_parent; /* hmm, don't know, correct? */
- gdkvisual = gdk_window_get_visual(rootwindow);
- if (gdkvisual != gdk_imlib_get_visual()) return;
+ screen = gtk_widget_get_screen(imd->image);
+ rootwindow = gdk_screen_get_root_window(screen);
+ if (gdk_drawable_get_visual(rootwindow) != gdk_visual_get_system()) return;
if (scaled)
{
- gdk_imlib_render(imd->image_data, gdk_screen_width(), gdk_screen_height());
+ pb = gdk_pixbuf_scale_simple(imd->pixbuf, gdk_screen_width(), gdk_screen_height(), (GdkInterpType)zoom_quality);
}
else
{
- gdk_imlib_render(imd->image_data, imd->width, imd->height);
+ pb = gdk_pixbuf_scale_simple(imd->pixbuf, imd->width, imd->height, (GdkInterpType)zoom_quality);
}
- pixmap = gdk_imlib_move_image(imd->image_data);
+ gdk_pixbuf_render_pixmap_and_mask (pb, &pixmap, NULL, 128);
gdk_window_set_back_pixmap(rootwindow, pixmap, FALSE);
gdk_window_clear(rootwindow);
- gdk_imlib_free_pixmap(pixmap);
+ g_object_unref(pb);
+ g_object_unref(pixmap);
gdk_flush();
}
+/*
+ *-------------------------------------------------------------------
+ * init / destroy
+ *-------------------------------------------------------------------
+ */
+
+static void image_free(ImageWindow *imd)
+{
+ image_read_ahead_cancel(imd);
+ image_post_buffer_set(imd, NULL, NULL);
+ image_auto_refresh(imd, -1);
+
+ g_free(imd->image_path);
+ g_free(imd->title);
+ g_free(imd->title_right);
+
+ image_reset(imd);
+ image_tile_sync_count(imd, 0);
+ if (imd->pixbuf) g_object_unref(imd->pixbuf);
+
+ image_scroller_timer_set(imd, FALSE);
+
+ image_overlay_list_clear(imd);
+
+ g_free(imd);
+}
+
+static void image_destroy_cb(GtkObject *widget, gpointer data)
+{
+ ImageWindow *imd = data;
+ image_free(imd);
+}
+
+ImageWindow *image_new(gint frame)
+{
+ ImageWindow *imd;
+
+ imd = g_new0(ImageWindow, 1);
+ imd->zoom = 1.0;
+ imd->scale = 1.0;
+
+ imd->draw_idle_id = -1;
+
+ imd->tile_width = IMAGE_TILE_SIZE;
+ imd->tile_height = IMAGE_TILE_SIZE;
+
+ imd->top_window = NULL;
+ imd->title = NULL;
+ imd->title_right = NULL;
+ imd->title_show_zoom = FALSE;
+
+ imd->unknown = TRUE;
+
+ imd->pixbuf = NULL;
+
+ imd->has_frame = frame;
+ imd->top_window_sync = FALSE;
+
+ imd->tile_cache = NULL;
+ imd->tile_cache_size = 0;
+
+ imd->delay_alter_type = ALTER_NONE;
+
+ imd->read_ahead_il = NULL;
+ imd->read_ahead_pixbuf = NULL;
+ imd->read_ahead_path = NULL;
+
+ imd->completed = FALSE;
+
+ imd->auto_refresh_id = -1;
+ imd->auto_refresh_interval = -1;
+
+ imd->delay_flip = FALSE;
+
+ imd->func_update = NULL;
+ imd->func_complete = NULL;
+
+ imd->func_button = NULL;
+ imd->func_scroll = NULL;
+
+ imd->scroller_id = -1;
+ imd->scroller_overlay = -1;
+
+ imd->image = gtk_drawing_area_new();
+ gtk_widget_set_double_buffered(imd->image, FALSE);
+
+ if (imd->has_frame)
+ {
+ imd->widget = gtk_frame_new(NULL);
+ gtk_frame_set_shadow_type(GTK_FRAME(imd->widget), GTK_SHADOW_IN);
+ gtk_container_add(GTK_CONTAINER(imd->widget), imd->image);
+ gtk_widget_show(imd->image);
+
+ GTK_WIDGET_SET_FLAGS(imd->widget, GTK_CAN_FOCUS);
+ g_signal_connect(G_OBJECT(imd->widget), "focus_in_event",
+ G_CALLBACK(image_focus_in_cb), imd);
+ g_signal_connect(G_OBJECT(imd->widget), "focus_out_event",
+ G_CALLBACK(image_focus_out_cb), imd);
+
+ g_signal_connect_after(G_OBJECT(imd->widget), "expose_event",
+ G_CALLBACK(image_focus_expose), imd);
+ }
+ else
+ {
+ imd->widget = imd->image;
+ }
+
+ g_signal_connect(G_OBJECT(imd->image), "motion_notify_event",
+ G_CALLBACK(image_mouse_motion_cb), imd);
+ g_signal_connect(G_OBJECT(imd->image), "button_press_event",
+ G_CALLBACK(image_mouse_press_cb), imd);
+ g_signal_connect(G_OBJECT(imd->image), "button_release_event",
+ G_CALLBACK(image_mouse_release_cb), imd);
+ g_signal_connect(G_OBJECT(imd->image), "leave_notify_event",
+ G_CALLBACK(image_mouse_leave_cb), imd);
+ gtk_widget_set_events(imd->image, GDK_POINTER_MOTION_MASK |
+ GDK_BUTTON_RELEASE_MASK | GDK_BUTTON_PRESS_MASK |
+ GDK_LEAVE_NOTIFY_MASK);
+
+ g_signal_connect(G_OBJECT(imd->image), "expose_event",
+ G_CALLBACK(image_expose_cb), imd);
+ g_signal_connect_after(G_OBJECT(imd->image), "size_allocate",
+ G_CALLBACK(image_size_cb), imd);
+
+ g_signal_connect(G_OBJECT(imd->image), "drag_begin",
+ G_CALLBACK(image_mouse_drag_cb), imd);
+ g_signal_connect(G_OBJECT(imd->image), "scroll_event",
+ G_CALLBACK(image_scroll_cb), imd);
+
+ g_signal_connect(G_OBJECT(imd->widget), "destroy",
+ G_CALLBACK(image_destroy_cb), imd);
+
+ return imd;
+}
+
projects / geeqie.git / blobdiff