* Carsten Haitzler <raster@rasterman.com>
*/
+#include <string.h>
+
#include "pixbuf.h"
#include <gdk-pixbuf/gdk-pixbuf.h>
GCache *pixbuf_cache = NULL;
+static GdkPixbuf *
+replicate_single (GdkPixbuf *src,
+ gint src_x,
+ gint src_y,
+ gint width,
+ gint height)
+{
+ guint n_channels = gdk_pixbuf_get_n_channels (src);
+ guchar *pixels = (gdk_pixbuf_get_pixels (src) +
+ src_y * gdk_pixbuf_get_rowstride (src) +
+ src_x * n_channels);
+ guchar r = *(pixels++);
+ guchar g = *(pixels++);
+ guchar b = *(pixels++);
+ guint dest_rowstride;
+ guchar *dest_pixels;
+ guchar a = 0;
+ GdkPixbuf *result;
+ int i, j;
+
+ if (n_channels == 4)
+ a = *(pixels++);
+
+ result = gdk_pixbuf_new (GDK_COLORSPACE_RGB, n_channels == 4, 8,
+ width, height);
+ dest_rowstride = gdk_pixbuf_get_rowstride (result);
+ dest_pixels = gdk_pixbuf_get_pixels (result);
+
+ for (i = 0; i < height; i++)
+ {
+ guchar *p = dest_pixels + dest_rowstride *i;
+
+ for (j = 0; j < width; j++)
+ {
+ *(p++) = r;
+ *(p++) = g;
+ *(p++) = b;
+
+ if (n_channels == 4)
+ *(p++) = a;
+ }
+ }
+
+ return result;
+}
+
+static GdkPixbuf *
+replicate_rows (GdkPixbuf *src,
+ gint src_x,
+ gint src_y,
+ gint width,
+ gint height)
+{
+ guint n_channels = gdk_pixbuf_get_n_channels (src);
+ guint src_rowstride = gdk_pixbuf_get_rowstride (src);
+ guchar *pixels = (gdk_pixbuf_get_pixels (src) + src_y * src_rowstride + src_x * n_channels);
+ guchar *dest_pixels;
+ GdkPixbuf *result;
+ guint dest_rowstride;
+ int i;
+
+ result = gdk_pixbuf_new (GDK_COLORSPACE_RGB, n_channels == 4, 8,
+ width, height);
+ dest_rowstride = gdk_pixbuf_get_rowstride (result);
+ dest_pixels = gdk_pixbuf_get_pixels (result);
+
+ for (i = 0; i < height; i++)
+ memcpy (dest_pixels + dest_rowstride * i, pixels, n_channels * width);
+
+ return result;
+}
+
+static GdkPixbuf *
+replicate_cols (GdkPixbuf *src,
+ gint src_x,
+ gint src_y,
+ gint width,
+ gint height)
+{
+ guint n_channels = gdk_pixbuf_get_n_channels (src);
+ guint src_rowstride = gdk_pixbuf_get_rowstride (src);
+ guchar *pixels = (gdk_pixbuf_get_pixels (src) + src_y * src_rowstride + src_x * n_channels);
+ guchar *dest_pixels;
+ GdkPixbuf *result;
+ guint dest_rowstride;
+ int i, j;
+
+ result = gdk_pixbuf_new (GDK_COLORSPACE_RGB, n_channels == 4, 8,
+ width, height);
+ dest_rowstride = gdk_pixbuf_get_rowstride (result);
+ dest_pixels = gdk_pixbuf_get_pixels (result);
+
+ for (i = 0; i < height; i++)
+ {
+ guchar *p = dest_pixels + dest_rowstride * i;
+ guchar *q = pixels + src_rowstride * i;
+
+ guchar r = *(q++);
+ guchar g = *(q++);
+ guchar b = *(q++);
+ guchar a = 0;
+
+ if (n_channels == 4)
+ a = *(q++);
+
+ for (j = 0; j < width; j++)
+ {
+ *(p++) = r;
+ *(p++) = g;
+ *(p++) = b;
+
+ if (n_channels == 4)
+ *(p++) = a;
+ }
+ }
+
+ return result;
+}
+
/* Scale the rectangle (src_x, src_y, src_width, src_height)
* onto the rectangle (dest_x, dest_y, dest_width, dest_height)
* of the destination, clip by clip_rect and render
*/
static void
pixbuf_render (GdkPixbuf *src,
+ guint hints,
GdkWindow *window,
GdkBitmap *mask,
GdkRectangle *clip_rect,
*/
if (!mask && clip_rect)
{
- /* The temporary is necessary only for GDK+-1.2, and not
- * for later versions of GDK, where you can have the
- * same source and dest for gdk_rectangle_intersect().
- */
- GdkRectangle tmp_rect = rect;
-
- if (!gdk_rectangle_intersect (clip_rect, &tmp_rect, &rect))
+ if (!gdk_rectangle_intersect (clip_rect, &rect, &rect))
return;
}
-
- if (dest_width != src_width ||
- dest_height != src_height)
+
+ if (dest_width == src_width && dest_height == src_height)
+ {
+ tmp_pixbuf = g_object_ref (src);
+
+ x_offset = src_x + rect.x - dest_x;
+ y_offset = src_y + rect.y - dest_y;
+ }
+ else if ((hints & THEME_CONSTANT_COLS) && (hints & THEME_CONSTANT_ROWS))
+ {
+ tmp_pixbuf = replicate_single (src, src_x, src_y, dest_width, dest_height);
+
+ x_offset = rect.x - dest_x;
+ y_offset = rect.y - dest_y;
+ }
+ else if (dest_width == src_width && (hints & THEME_CONSTANT_COLS))
+ {
+ tmp_pixbuf = replicate_rows (src, src_x, src_y, dest_width, dest_height);
+
+ x_offset = rect.x - dest_x;
+ y_offset = rect.y - dest_y;
+ }
+ else if (dest_height == src_height && (hints & THEME_CONSTANT_ROWS))
+ {
+ tmp_pixbuf = replicate_cols (src, src_x, src_y, dest_width, dest_height);
+
+ x_offset = rect.x - dest_x;
+ y_offset = rect.y - dest_y;
+ }
+ else
{
double x_scale = (double)dest_width / src_width;
double y_scale = (double)dest_height / src_height;
x_offset = 0;
y_offset = 0;
}
- else
- {
- tmp_pixbuf = src;
- gdk_pixbuf_ref (tmp_pixbuf);
-
- x_offset = src_x + rect.x - dest_x;
- y_offset = src_y + rect.y - dest_y;
- }
if (mask)
{
- GdkGC *tmp_gc;
-
gdk_pixbuf_render_threshold_alpha (tmp_pixbuf, mask,
x_offset, y_offset,
rect.x, rect.y,
rect.width, rect.height,
128);
-
- tmp_gc = gdk_gc_new (window);
- if (clip_rect)
- gdk_gc_set_clip_rectangle (tmp_gc, clip_rect);
-
- gdk_pixbuf_render_to_drawable (tmp_pixbuf, window, tmp_gc,
- x_offset, y_offset,
- rect.x, rect.y,
- rect.width, rect.height,
- GDK_RGB_DITHER_NORMAL,
- 0, 0);
- gdk_gc_unref (tmp_gc);
}
- else
- gdk_pixbuf_render_to_drawable_alpha (tmp_pixbuf, window,
- x_offset, y_offset,
- rect.x, rect.y,
- rect.width, rect.height,
- GDK_PIXBUF_ALPHA_BILEVEL, 128,
- GDK_RGB_DITHER_NORMAL,
- 0, 0);
+
+ gdk_pixbuf_render_to_drawable_alpha (tmp_pixbuf, window,
+ x_offset, y_offset,
+ rect.x, rect.y,
+ rect.width, rect.height,
+ GDK_PIXBUF_ALPHA_FULL, 128,
+ GDK_RGB_DITHER_NORMAL,
+ 0, 0);
gdk_pixbuf_unref (tmp_pixbuf);
}
ThemePixbuf *
theme_pixbuf_new (void)
{
- ThemePixbuf *result = g_new (ThemePixbuf, 1);
+ ThemePixbuf *result = g_new0 (ThemePixbuf, 1);
result->filename = NULL;
result->pixbuf = NULL;
theme_pb->filename = g_strdup (filename);
}
+static guint
+compute_hint (GdkPixbuf *pixbuf,
+ gint x0,
+ gint x1,
+ gint y0,
+ gint y1)
+{
+ int i, j;
+ int hints = THEME_CONSTANT_ROWS | THEME_CONSTANT_COLS;
+ int n_channels = gdk_pixbuf_get_n_channels (pixbuf);
+
+ guchar *data = gdk_pixbuf_get_pixels (pixbuf);
+ int rowstride = gdk_pixbuf_get_rowstride (pixbuf);
+
+ if (x0 == x1 || y0 == y1)
+ return 0;
+
+ for (i = y0; i < y1; i++)
+ {
+ guchar *p = data + i * rowstride + x0 * n_channels;
+ guchar r = *(p++);
+ guchar g = *(p++);
+ guchar b = *(p++);
+ guchar a = 0;
+
+ if (n_channels == 4)
+ a = *(p++);
+
+ for (j = x0 + 1; j < x1 ; j++)
+ {
+ if (r != *(p++) ||
+ g != *(p++) ||
+ b != *(p++) ||
+ (n_channels == 4 && a != *(p++)))
+ {
+ hints &= ~THEME_CONSTANT_ROWS;
+ goto cols;
+ }
+ }
+ }
+
+ cols:
+ for (i = y0 + 1; i < y1; i++)
+ {
+ guchar *base = data + y0 * rowstride + x0 * n_channels;
+ guchar *p = data + i * rowstride + x0 * n_channels;
+
+ if (memcmp (p, base, n_channels * (x1 - x0)) != 0)
+ {
+ hints &= ~THEME_CONSTANT_COLS;
+ return hints;
+ }
+ }
+
+ return hints;
+}
+
+static void
+theme_pixbuf_compute_hints (ThemePixbuf *theme_pb)
+{
+ int i, j;
+ gint width = gdk_pixbuf_get_width (theme_pb->pixbuf);
+ gint height = gdk_pixbuf_get_height (theme_pb->pixbuf);
+
+ for (i = 0; i < 3; i++)
+ {
+ gint y0, y1;
+
+ switch (i)
+ {
+ case 0:
+ y0 = 0;
+ y1 = theme_pb->border_top;
+ break;
+ case 1:
+ y0 = theme_pb->border_top;
+ y1 = height - theme_pb->border_bottom;
+ break;
+ default:
+ y0 = height - theme_pb->border_bottom;
+ y1 = height;
+ break;
+ }
+
+ for (j = 0; j < 3; j++)
+ {
+ gint x0, x1;
+
+ switch (j)
+ {
+ case 0:
+ x0 = 0;
+ x1 = theme_pb->border_left;
+ break;
+ case 1:
+ x0 = theme_pb->border_left;
+ x1 = width - theme_pb->border_right;
+ break;
+ default:
+ x0 = width - theme_pb->border_right;
+ x1 = width;
+ break;
+ }
+
+ theme_pb->hints[i][j] = compute_hint (theme_pb->pixbuf, x0, x1, y0, y1);
+ }
+ }
+
+}
+
void
theme_pixbuf_set_border (ThemePixbuf *theme_pb,
gint left,
theme_pb->border_right = right;
theme_pb->border_top = top;
theme_pb->border_bottom = bottom;
+
+ if (theme_pb->pixbuf)
+ theme_pixbuf_compute_hints (theme_pb);
}
void
gboolean stretch)
{
theme_pb->stretch = stretch;
+
+ if (theme_pb->pixbuf)
+ theme_pixbuf_compute_hints (theme_pb);
}
GdkPixbuf *
g_str_hash, g_direct_hash, g_str_equal);
theme_pb->pixbuf = g_cache_insert (pixbuf_cache, theme_pb->filename);
+
+ if (theme_pb->stretch)
+ theme_pixbuf_compute_hints (theme_pb);
}
return theme_pb->pixbuf;
if (component_mask & COMPONENT_ALL)
component_mask = (COMPONENT_ALL - 1) & ~component_mask;
-#define RENDER_COMPONENT(X1,X2,Y1,Y2) \
- pixbuf_render (pixbuf, window, mask, clip_rect, \
- src_x[X1], src_y[Y1], \
- src_x[X2] - src_x[X1], src_y[Y2] - src_y[Y1], \
- dest_x[X1], dest_y[Y1], \
+#define RENDER_COMPONENT(X1,X2,Y1,Y2) \
+ pixbuf_render (pixbuf, theme_pb->hints[Y1][X1], window, mask, clip_rect, \
+ src_x[X1], src_y[Y1], \
+ src_x[X2] - src_x[X1], src_y[Y2] - src_y[Y1], \
+ dest_x[X1], dest_y[Y1], \
dest_x[X2] - dest_x[X1], dest_y[Y2] - dest_y[Y1]);
if (component_mask & COMPONENT_NORTH_WEST)
x += (width - pixbuf_width) / 2;
y += (height - pixbuf_height) / 2;
- pixbuf_render (pixbuf, window, NULL, clip_rect,
+ pixbuf_render (pixbuf, 0, window, NULL, clip_rect,
0, 0,
pixbuf_width, pixbuf_height,
x, y,
projects / ~andy / gtk / commitdiff
