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desktop-shell: Support tiling of background images

This commit is contained in:
Kristian Høgsberg 2012-01-25 16:34:36 -05:00
parent d654876510
commit 07f729441e
1 changed files with 31 additions and 7 deletions
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38
clients/desktop-shell.c
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@ -96,6 +96,7 @@ struct unlock_dialog {
};
static char *key_background_image;
static char *key_background_type;
static uint32_t key_panel_color;
static uint32_t key_background_color;
static char *key_launcher_icon;
@ -105,6 +106,7 @@ static int key_locking = 1;
static const struct config_key shell_config_keys[] = {
{ "background-image", CONFIG_KEY_STRING, &key_background_image },
{ "background-type", CONFIG_KEY_STRING, &key_background_type },
{ "panel-color", CONFIG_KEY_INTEGER, &key_panel_color },
{ "background-color", CONFIG_KEY_INTEGER, &key_background_color },
{ "locking", CONFIG_KEY_BOOLEAN, &key_locking },
@ -355,6 +357,11 @@ panel_add_launcher(struct panel *panel, const char *icon, const char *path)
panel_launcher_redraw_handler);
}
enum {
BACKGROUND_SCALE,
BACKGROUND_TILE
};
static void
background_draw(struct widget *widget, void *data)
{
@ -365,6 +372,7 @@ background_draw(struct widget *widget, void *data)
cairo_t *cr;
double sx, sy;
struct rectangle allocation;
int type = -1;
surface = window_get_surface(background->window);
@ -377,14 +385,30 @@ background_draw(struct widget *widget, void *data)
image = NULL;
if (key_background_image)
image = load_image(key_background_image);
if (image) {
if (strcmp(key_background_type, "scale") == 0)
type = BACKGROUND_SCALE;
else if (strcmp(key_background_type, "tile") == 0)
type = BACKGROUND_TILE;
else
fprintf(stderr, "invalid background-type: %s\n",
key_background_type);
if (image && type != -1) {
pattern = cairo_pattern_create_for_surface(image);
sx = (double) cairo_image_surface_get_width(image) /
allocation.width;
sy = (double) cairo_image_surface_get_height(image) /
allocation.height;
cairo_matrix_init_scale(&matrix, sx, sy);
cairo_pattern_set_matrix(pattern, &matrix);
switch (type) {
case BACKGROUND_SCALE:
sx = (double) cairo_image_surface_get_width(image) /
allocation.width;
sy = (double) cairo_image_surface_get_height(image) /
allocation.height;
cairo_matrix_init_scale(&matrix, sx, sy);
cairo_pattern_set_matrix(pattern, &matrix);
break;
case BACKGROUND_TILE:
cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
break;
}
cairo_set_source(cr, pattern);
cairo_pattern_destroy (pattern);
cairo_surface_destroy(image);