+++ /dev/null
-/*
- * 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 "pixbuf_util.h"
-
-#include "icons/icons_inline.h"
-
-
-/*
- *-----------------------------------------------------------------------------
- * png save
- *-----------------------------------------------------------------------------
- */
-
-gboolean pixbuf_to_file_as_png (GdkPixbuf *pixbuf, const char *filename)
-{
- GError *error = NULL;
- gint ret;
-
- if (!pixbuf || !filename) return FALSE;
-
- ret = gdk_pixbuf_save(pixbuf, filename, "png", &error,
- "tEXt::Software", "GQview "VERSION, NULL);
-
- if (error)
- {
- printf("Error saving png file: %s\n", error->message);
- g_error_free(error);
- }
-
- return ret;
-}
-
-/*
- *-----------------------------------------------------------------------------
- * jpeg save
- *-----------------------------------------------------------------------------
- */
-
-gboolean pixbuf_to_file_as_jpg(GdkPixbuf *pixbuf, const gchar *filename, gint quality)
-{
- GError *error = NULL;
- gchar *qbuf;
- gboolean ret;
-
- if (!pixbuf || !filename) return FALSE;
-
- if (quality == -1) quality = 75;
- if (quality < 1 || quality > 100)
- {
- printf("Jpeg not saved, invalid quality %d\n", quality);
- return FALSE;
- }
-
- qbuf = g_strdup_printf("%d", quality);
- ret = gdk_pixbuf_save(pixbuf, filename, "jpeg", &error, "quality", qbuf, NULL);
- g_free(qbuf);
-
- if (error)
- {
- printf("Error saving jpeg to %s\n%s\n", filename, error->message);
- g_error_free(error);
- }
-
- return ret;
-}
-
-/*
- *-----------------------------------------------------------------------------
- * pixbuf from inline
- *-----------------------------------------------------------------------------
- */
-
-typedef struct _PixbufInline PixbufInline;
-struct _PixbufInline
-{
- const gchar *key;
- const guint8 *data;
-};
-
-static PixbufInline inline_pixbuf_data[] = {
- { PIXBUF_INLINE_FOLDER_CLOSED, folder_closed },
- { PIXBUF_INLINE_FOLDER_LOCKED, folder_locked },
- { PIXBUF_INLINE_FOLDER_OPEN, folder_open },
- { PIXBUF_INLINE_FOLDER_UP, folder_up },
- { PIXBUF_INLINE_SCROLLER, icon_scroller },
- { PIXBUF_INLINE_BROKEN, icon_broken },
- { PIXBUF_INLINE_LOGO, gqview_logo },
- { NULL, NULL }
-};
-
-GdkPixbuf *pixbuf_inline(const gchar *key)
-{
- gint i;
-
- if (!key) return NULL;
-
- i = 0;
- while (inline_pixbuf_data[i].key)
- {
- if (strcmp(inline_pixbuf_data[i].key, key) == 0)
- {
- return gdk_pixbuf_new_from_inline(-1, inline_pixbuf_data[i].data, FALSE, NULL);
- }
- i++;
- }
-
- printf("warning: inline pixbuf key \"%s\" not found.\n", key);
-
- return NULL;
-}
-
-/*
- *-----------------------------------------------------------------------------
- * pixbuf rotation
- *-----------------------------------------------------------------------------
- */
-
-static void pixbuf_copy_block_rotate(guchar *src, gint src_row_stride, gint x, gint y,
- guchar *dest, gint dest_row_stride, gint w, gint h,
- gint bytes_per_pixel, gint counter_clockwise)
-{
- gint i, j;
- guchar *sp;
- guchar *dp;
-
- for (i = 0; i < h; i++)
- {
- sp = src + ((i + y) * src_row_stride) + (x * bytes_per_pixel);
- for (j = 0; j < w; j++)
- {
- if (counter_clockwise)
- {
- dp = dest + ((w - j - 1) * dest_row_stride) + (i * bytes_per_pixel);
- }
- else
- {
- dp = dest + (j * dest_row_stride) + ((h - i - 1) * bytes_per_pixel);
- }
- *(dp++) = *(sp++); /* r */
- *(dp++) = *(sp++); /* g */
- *(dp++) = *(sp++); /* b */
- if (bytes_per_pixel == 4) *(dp) = *(sp++); /* a */
- }
- }
-
-}
-
-static void pixbuf_copy_block(guchar *src, gint src_row_stride, gint w, gint h,
- guchar *dest, gint dest_row_stride, gint x, gint y, gint bytes_per_pixel)
-{
- gint i;
- guchar *sp;
- guchar *dp;
-
- for (i = 0; i < h; i++)
- {
- sp = src + (i * src_row_stride);
- dp = dest + ((y + i) * dest_row_stride) + (x * bytes_per_pixel);
- memcpy(dp, sp, w * bytes_per_pixel);
- }
-}
-
-#define ROTATE_BUFFER_WIDTH 48
-#define ROTATE_BUFFER_HEIGHT 48
-
-/*
- * Returns a copy of pixbuf src rotated 90 degrees clockwise or 90 counterclockwise
- *
- */
-GdkPixbuf *pixbuf_copy_rotate_90(GdkPixbuf *src, gint counter_clockwise)
-{
- GdkPixbuf *dest;
- gint has_alpha;
- gint sw, sh, srs;
- gint dw, dh, drs;
- guchar *s_pix;
- guchar *d_pix;
-#if 0
- guchar *sp;
- guchar *dp;
-#endif
- gint i, j;
- gint a;
- GdkPixbuf *buffer;
- guchar *b_pix;
- gint brs;
- gint w, h;
-
- if (!src) return NULL;
-
- sw = gdk_pixbuf_get_width(src);
- sh = gdk_pixbuf_get_height(src);
- has_alpha = gdk_pixbuf_get_has_alpha(src);
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
-
- dw = sh;
- dh = sw;
- dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, has_alpha, 8, dw, dh);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
-
- a = (has_alpha ? 4 : 3);
-
- buffer = gdk_pixbuf_new(GDK_COLORSPACE_RGB, has_alpha, 8,
- ROTATE_BUFFER_WIDTH, ROTATE_BUFFER_HEIGHT);
- b_pix = gdk_pixbuf_get_pixels(buffer);
- brs = gdk_pixbuf_get_rowstride(buffer);
-
- for (i = 0; i < sh; i+= ROTATE_BUFFER_WIDTH)
- {
- w = MIN(ROTATE_BUFFER_WIDTH, (sh - i));
- for (j = 0; j < sw; j += ROTATE_BUFFER_HEIGHT)
- {
- gint x, y;
-
- h = MIN(ROTATE_BUFFER_HEIGHT, (sw - j));
- pixbuf_copy_block_rotate(s_pix, srs, j, i,
- b_pix, brs, h, w,
- a, counter_clockwise);
-
- if (counter_clockwise)
- {
- x = i;
- y = sw - h - j;
- }
- else
- {
- x = sh - w - i;
- y = j;
- }
- pixbuf_copy_block(b_pix, brs, w, h,
- d_pix, drs, x, y, a);
- }
- }
-
- gdk_pixbuf_unref(buffer);
-
-#if 0
- /* this is the simple version of rotation (roughly 2-4x slower) */
-
- for (i = 0; i < sh; i++)
- {
- sp = s_pix + (i * srs);
- for (j = 0; j < sw; j++)
- {
- if (counter_clockwise)
- {
- dp = d_pix + ((dh - j - 1) * drs) + (i * a);
- }
- else
- {
- dp = d_pix + (j * drs) + ((dw - i - 1) * a);
- }
-
- *(dp++) = *(sp++); /* r */
- *(dp++) = *(sp++); /* g */
- *(dp++) = *(sp++); /* b */
- if (has_alpha) *(dp) = *(sp++); /* a */
- }
- }
-#endif
-
- return dest;
-}
-
-/*
- * Returns a copy of pixbuf mirrored and or flipped.
- * TO do a 180 degree rotations set both mirror and flipped TRUE
- * if mirror and flip are FALSE, result is a simple copy.
- */
-GdkPixbuf *pixbuf_copy_mirror(GdkPixbuf *src, gint mirror, gint flip)
-{
- GdkPixbuf *dest;
- gint has_alpha;
- gint w, h, srs;
- gint drs;
- guchar *s_pix;
- guchar *d_pix;
- guchar *sp;
- guchar *dp;
- gint i, j;
- gint a;
-
- if (!src) return NULL;
-
- w = gdk_pixbuf_get_width(src);
- h = gdk_pixbuf_get_height(src);
- has_alpha = gdk_pixbuf_get_has_alpha(src);
- srs = gdk_pixbuf_get_rowstride(src);
- s_pix = gdk_pixbuf_get_pixels(src);
-
- dest = gdk_pixbuf_new(GDK_COLORSPACE_RGB, has_alpha, 8, w, h);
- drs = gdk_pixbuf_get_rowstride(dest);
- d_pix = gdk_pixbuf_get_pixels(dest);
-
- a = has_alpha ? 4 : 3;
-
- for (i = 0; i < h; i++)
- {
- sp = s_pix + (i * srs);
- if (flip)
- {
- dp = d_pix + ((h - i - 1) * drs);
- }
- else
- {
- dp = d_pix + (i * drs);
- }
- if (mirror)
- {
- dp += (w - 1) * a;
- for (j = 0; j < w; j++)
- {
- *(dp++) = *(sp++); /* r */
- *(dp++) = *(sp++); /* g */
- *(dp++) = *(sp++); /* b */
- if (has_alpha) *(dp) = *(sp++); /* a */
- dp -= (a + 3);
- }
- }
- else
- {
- for (j = 0; j < w; j++)
- {
- *(dp++) = *(sp++); /* r */
- *(dp++) = *(sp++); /* g */
- *(dp++) = *(sp++); /* b */
- if (has_alpha) *(dp++) = *(sp++); /* a */
- }
- }
- }
-
- return dest;
-}
-
-
-/*
- *-----------------------------------------------------------------------------
- * pixbuf drawing
- *-----------------------------------------------------------------------------
- */
-
-/*
- * Fills region of pixbuf at x,y over w,h
- * with colors red (r), green (g), blue (b)
- * applying alpha (a), use a=255 for solid.
- */
-void pixbuf_draw_rect_fill(GdkPixbuf *pb,
- gint x, gint y, gint w, gint h,
- gint r, gint g, gint b, gint a)
-{
- gint p_alpha;
- gint pw, ph, prs;
- guchar *p_pix;
- guchar *pp;
- gint i, j;
-
- if (!pb) return;
-
- pw = gdk_pixbuf_get_width(pb);
- ph = gdk_pixbuf_get_height(pb);
-
- if (x < 0 || x + w > pw) return;
- if (y < 0 || y + h > ph) return;
-
- p_alpha = gdk_pixbuf_get_has_alpha(pb);
- prs = gdk_pixbuf_get_rowstride(pb);
- p_pix = gdk_pixbuf_get_pixels(pb);
-
- for (i = 0; i < h; i++)
- {
- pp = p_pix + (y + i) * prs + (x * (p_alpha ? 4 : 3));
- for (j = 0; j < w; j++)
- {
- *pp = (r * a + *pp * (256-a)) >> 8;
- pp++;
- *pp = (g * a + *pp * (256-a)) >> 8;
- pp++;
- *pp = (b * a + *pp * (256-a)) >> 8;
- pp++;
- if (p_alpha) pp++;
- }
- }
-}
-
-void pixbuf_draw_rect(GdkPixbuf *pb,
- gint x, gint y, gint w, gint h,
- gint r, gint g, gint b, gint a,
- gint left, gint right, gint top, gint bottom)
-{
- pixbuf_draw_rect_fill(pb, x + left, y, w - left - right, top,
- r, g, b ,a);
- pixbuf_draw_rect_fill(pb, x + w - right, y, right, h,
- r, g, b ,a);
- pixbuf_draw_rect_fill(pb, x + left, y + h - bottom, w - left - right, bottom,
- r, g, b ,a);
- pixbuf_draw_rect_fill(pb, x, y, left, h,
- r, g, b ,a);
-}
-
-void pixbuf_set_rect_fill(GdkPixbuf *pb,
- gint x, gint y, gint w, gint h,
- gint r, gint g, gint b, gint a)
-{
- gint p_alpha;
- gint pw, ph, prs;
- guchar *p_pix;
- guchar *pp;
- gint i, j;
-
- if (!pb) return;
-
- pw = gdk_pixbuf_get_width(pb);
- ph = gdk_pixbuf_get_height(pb);
-
- if (x < 0 || x + w > pw) return;
- if (y < 0 || y + h > ph) return;
-
- p_alpha = gdk_pixbuf_get_has_alpha(pb);
- prs = gdk_pixbuf_get_rowstride(pb);
- p_pix = gdk_pixbuf_get_pixels(pb);
-
- for (i = 0; i < h; i++)
- {
- pp = p_pix + (y + i) * prs + (x * (p_alpha ? 4 : 3));
- for (j = 0; j < w; j++)
- {
- *pp = r; pp++;
- *pp = g; pp++;
- *pp = b; pp++;
- if (p_alpha) { *pp = a; pp++; }
- }
- }
-}
-
-void pixbuf_set_rect(GdkPixbuf *pb,
- gint x, gint y, gint w, gint h,
- gint r, gint g, gint b, gint a,
- gint left, gint right, gint top, gint bottom)
-{
- pixbuf_set_rect_fill(pb, x + left, y, w - left - right, top,
- r, g, b ,a);
- pixbuf_set_rect_fill(pb, x + w - right, y, right, h,
- r, g, b ,a);
- pixbuf_set_rect_fill(pb, x + left, y + h - bottom, w - left - right, bottom,
- r, g, b ,a);
- pixbuf_set_rect_fill(pb, x, y, left, h,
- r, g, b ,a);
-}
-
-void pixbuf_pixel_set(GdkPixbuf *pb, gint x, gint y, gint r, gint g, gint b, gint a)
-{
- guchar *buf;
- gint has_alpha;
- gint rowstride;
- guchar *p;
-
- if (x < 0 || x >= gdk_pixbuf_get_width(pb) ||
- y < 0 || y >= gdk_pixbuf_get_height(pb)) return;
-
- buf = gdk_pixbuf_get_pixels(pb);
- has_alpha = gdk_pixbuf_get_has_alpha(pb);
- rowstride = gdk_pixbuf_get_rowstride(pb);
-
- p = buf + (y * rowstride) + (x * (has_alpha ? 4 : 3));
- *p = r; p++;
- *p = g; p++;
- *p = b; p++;
- if (has_alpha) *p = a;
-}
-
-
-/*
- *-----------------------------------------------------------------------------
- * pixbuf text rendering
- *-----------------------------------------------------------------------------
- */
-
-static void pixbuf_copy_font(GdkPixbuf *src, gint sx, gint sy,
- GdkPixbuf *dest, gint dx, gint dy,
- gint w, gint h,
- guint8 r, guint8 g, guint8 b, guint8 a)
-{
- gint sw, sh, srs;
- gint s_alpha;
- gint s_step;
- guchar *s_pix;
- gint dw, dh, drs;
- gint d_alpha;
- gint d_step;
- guchar *d_pix;
-
- guchar *sp;
- guchar *dp;
- gint i, j;
-
- if (!src || !dest) return;
-
- sw = gdk_pixbuf_get_width(src);
- sh = gdk_pixbuf_get_height(src);
-
- if (sx < 0 || sx + w > sw) return;
- if (sy < 0 || sy + h > sh) return;
-
- dw = gdk_pixbuf_get_width(dest);
- dh = gdk_pixbuf_get_height(dest);
-
- if (dx < 0 || dx + w > dw) return;
- if (dy < 0 || dy + h > dh) return;
-
- s_alpha = gdk_pixbuf_get_has_alpha(src);
- d_alpha = gdk_pixbuf_get_has_alpha(dest);
- srs = gdk_pixbuf_get_rowstride(src);
- drs = gdk_pixbuf_get_rowstride(dest);
- s_pix = gdk_pixbuf_get_pixels(src);
- d_pix = gdk_pixbuf_get_pixels(dest);
-
- s_step = (s_alpha) ? 4 : 3;
- d_step = (d_alpha) ? 4 : 3;
-
- for (i = 0; i < h; i++)
- {
- sp = s_pix + (sy + i) * srs + sx * s_step;
- dp = d_pix + (dy + i) * drs + dx * d_step;
- for (j = 0; j < w; j++)
- {
- if (*sp)
- {
- guint8 asub;
-
- asub = a * sp[0] / 255;
- *dp = (r * asub + *dp * (256-asub)) >> 8;
- dp++;
- asub = a * sp[1] / 255;
- *dp = (g * asub + *dp * (256-asub)) >> 8;
- dp++;
- asub = a * sp[2] / 255;
- *dp = (b * asub + *dp * (256-asub)) >> 8;
- dp++;
-
- if (d_alpha)
- {
- *dp = MAX(*dp, a * ((sp[0] + sp[1] + sp[2]) / 3) / 255);
- dp++;
- }
- }
- else
- {
- dp += d_step;
- }
-
- sp += s_step;
- }
- }
-}
-
-void pixbuf_draw_layout(GdkPixbuf *pixbuf, PangoLayout *layout, GtkWidget *widget,
- gint x, gint y,
- guint8 r, guint8 g, guint8 b, guint8 a)
-{
- GdkPixmap *pixmap;
- GdkPixbuf *buffer;
- gint w, h;
- GdkGC *gc;
- gint sx, sy;
- gint dw, dh;
-
- if (!widget || !widget->window) return;
-
- pango_layout_get_pixel_size(layout, &w, &h);
- pixmap = gdk_pixmap_new(widget->window, w, h, -1);
-
- gc = gdk_gc_new(widget->window);
- gdk_gc_copy(gc, widget->style->black_gc);
- gdk_draw_rectangle(pixmap, gc, TRUE, 0, 0, w, h);
- gdk_gc_copy(gc, widget->style->white_gc);
- gdk_draw_layout(pixmap, gc, 0, 0, layout);
- g_object_unref(gc);
-
- buffer = gdk_pixbuf_new(GDK_COLORSPACE_RGB, FALSE, 8, w, h);
- gdk_pixbuf_get_from_drawable(buffer, pixmap,
- gdk_drawable_get_colormap(widget->window),
- 0, 0, 0, 0, w, h);
- g_object_unref(pixmap);
-
- sx = 0;
- sy = 0;
- dw = gdk_pixbuf_get_width(pixbuf);
- dh = gdk_pixbuf_get_height(pixbuf);
-
- if (x < 0)
- {
- w += x;
- sx = -x;
- x = 0;
- }
-
- if (y < 0)
- {
- h += y;
- sy = -y;
- y = 0;
- }
-
- if (x + w > dw) w = dw - x;
- if (y + h > dh) h = dh - y;
-
- pixbuf_copy_font(buffer, 0, 0,
- pixbuf, x, y, w, h,
- r, g, b, a);
-
- g_object_unref(buffer);
-}
-
projects / geeqie.git / blobdiff