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Restore screenshot functionality to compositor (ctrl+super+s/w)

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This commit is contained in:
Kevin Lange 2014-08-05 17:32:29 -07:00
parent ae570f8f48
commit 5d90fa8c24
2 changed files with 71 additions and 8 deletions
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74
userspace/gui/compositor/compositor.c
View File

@ -731,10 +731,10 @@ static uint32_t color_for_wid(yutani_wid_t wid) {
* Applies transformations (rotation, animations) and then renders
* the window with Cairo.
*/
static int yutani_blit_window(yutani_globals_t * yg, yutani_server_window_t * window, int x, int y) {
static int yutani_blit_window(yutani_globals_t * yg, cairo_t * ctx, yutani_server_window_t * window, int x, int y) {
/* Obtain the previously initialized cairo contexts */
cairo_t * cr = yg->framebuffer_ctx;
cairo_t * cr = ctx;
/* Window stride is always 4 bytes per pixel... */
int stride = window->width * 4;
@ -899,6 +899,55 @@ static void draw_resizing_box(yutani_globals_t * yg) {
}
/**
* Blit all windows into the given context.
*
* This is called for rendering and for screenshots.
*/
static void yutani_blit_windows(yutani_globals_t * yg, cairo_t * ctx) {
if (yg->bottom_z) yutani_blit_window(yg, ctx, yg->bottom_z, yg->bottom_z->x, yg->bottom_z->y);
foreach (node, yg->mid_zs) {
yutani_server_window_t * w = node->value;
if (w) yutani_blit_window(yg, ctx, w, w->x, w->y);
}
if (yg->top_z) yutani_blit_window(yg, ctx, yg->top_z, yg->top_z->x, yg->top_z->y);
}
/**
* Take a screenshot
*/
static void yutani_screenshot(yutani_globals_t * yg) {
int target_width;
int target_height;
void * target_data;
switch (yg->screenshot_frame) {
case YUTANI_SCREENSHOT_FULL:
target_width = yg->width;
target_height = yg->height;
target_data = yg->backend_framebuffer;
break;
case YUTANI_SCREENSHOT_WINDOW:
if (!yg->focused_window) goto screenshot_done;
target_width = yg->focused_window->width;
target_height = yg->focused_window->height;
target_data = yg->focused_window->buffer;
break;
default:
/* ??? */
goto screenshot_done;
}
cairo_surface_t * s = cairo_image_surface_create_for_data(target_data, CAIRO_FORMAT_ARGB32, target_width, target_height, target_width * 4);
cairo_surface_write_to_png(s, "/tmp/screenshot.png");
cairo_surface_destroy(s);
screenshot_done:
yg->screenshot_frame = 0;
}
/**
* Redraw all windows, as well as the mouse cursor.
*
@ -959,12 +1008,7 @@ static void redraw_windows(yutani_globals_t * yg) {
* we also need to render windows in stacking order...
*/
spin_lock(&yg->redraw_lock);
if (yg->bottom_z) yutani_blit_window(yg, yg->bottom_z, yg->bottom_z->x, yg->bottom_z->y);
foreach (node, yg->mid_zs) {
yutani_server_window_t * w = node->value;
if (w) yutani_blit_window(yg, w, w->x, w->y);
}
if (yg->top_z) yutani_blit_window(yg, yg->top_z, yg->top_z->x, yg->top_z->y);
yutani_blit_windows(yg, yg->framebuffer_ctx);
spin_unlock(&yg->redraw_lock);
if (yg->resizing_window) {
@ -1035,6 +1079,10 @@ static void redraw_windows(yutani_globals_t * yg) {
}
if (yg->screenshot_frame) {
yutani_screenshot(yg);
}
/* Restore the cairo contexts to reset clip regions */
restore_cairo_states(yg);
}
@ -1383,6 +1431,16 @@ static void handle_key_event(yutani_globals_t * yg, struct yutani_msg_key_event
return;
}
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == 's')) {
yg->screenshot_frame = YUTANI_SCREENSHOT_FULL;
return;
}
if ((ke->event.modifiers & KEY_MOD_LEFT_CTRL) &&
(ke->event.keycode == 'w')) {
yg->screenshot_frame = YUTANI_SCREENSHOT_WINDOW;
return;
}
}
}

5
userspace/gui/compositor/yutani_int.h
View File

@ -14,6 +14,9 @@
#define YUTANI_BYTE_DEPTH 4
#define YUTANI_SCREENSHOT_FULL 1
#define YUTANI_SCREENSHOT_WINDOW 2
typedef enum {
YUTANI_EFFECT_NONE,
YUTANI_EFFECT_FADE_IN,
@ -137,6 +140,8 @@ typedef struct {
int debug_bounds;
int debug_shapes;
int screenshot_frame;
} yutani_globals_t;
struct key_bind {