#include "libi3.h"
-xcb_connection_t *xcb_connection;
+/* The default visual_type to use if none is specified when creating the surface. Must be defined globally. */
xcb_visualtype_t *visual_type;
/* Forward declarations */
-static void draw_util_set_source_color(surface_t *surface, color_t color);
+static void draw_util_set_source_color(xcb_connection_t *conn, surface_t *surface, color_t color);
+
+#define RETURN_UNLESS_SURFACE_INITIALIZED(surface) \
+ do { \
+ if ((surface)->id == XCB_NONE) { \
+ ELOG("Surface %p is not initialized, skipping drawing.\n", surface); \
+ return; \
+ } \
+ } while (0)
/*
* Initialize the surface to represent the given drawable.
*
*/
-void draw_util_surface_init(surface_t *surface, xcb_drawable_t drawable, int width, int height) {
+void draw_util_surface_init(xcb_connection_t *conn, surface_t *surface, xcb_drawable_t drawable,
+ xcb_visualtype_t *visual, int width, int height) {
surface->id = drawable;
+ surface->visual_type = (visual == NULL) ? visual_type : visual;
surface->width = width;
surface->height = height;
- surface->gc = xcb_generate_id(xcb_connection);
- xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(xcb_connection, surface->gc, surface->id, 0, NULL);
+ surface->gc = xcb_generate_id(conn);
+ xcb_void_cookie_t gc_cookie = xcb_create_gc_checked(conn, surface->gc, surface->id, 0, NULL);
- xcb_generic_error_t *error = xcb_request_check(xcb_connection, gc_cookie);
+ xcb_generic_error_t *error = xcb_request_check(conn, gc_cookie);
if (error != NULL) {
ELOG("Could not create graphical context. Error code: %d\n", error->error_code);
exit(EXIT_FAILURE);
}
#ifdef CAIRO_SUPPORT
- surface->surface = cairo_xcb_surface_create(xcb_connection, surface->id, visual_type, width, height);
+ surface->surface = cairo_xcb_surface_create(conn, surface->id, surface->visual_type, width, height);
surface->cr = cairo_create(surface->surface);
#endif
}
* Destroys the surface.
*
*/
-void draw_util_surface_free(surface_t *surface) {
- xcb_free_gc(xcb_connection, surface->gc);
+void draw_util_surface_free(xcb_connection_t *conn, surface_t *surface) {
+ xcb_free_gc(conn, surface->gc);
#ifdef CAIRO_SUPPORT
cairo_surface_destroy(surface->surface);
cairo_destroy(surface->cr);
#endif
}
+/*
+ * Resize the surface to the given size.
+ *
+ */
+void draw_util_surface_set_size(surface_t *surface, int width, int height) {
+ surface->width = width;
+ surface->height = height;
+#ifdef CAIRO_SUPPORT
+ cairo_xcb_surface_set_size(surface->surface, width, height);
+#endif
+}
+
/*
* Parses the given color in hex format to an internal color representation.
* Note that the input must begin with a hash sign, e.g., "#3fbc59".
.colorpixel = get_colorpixel(color)};
}
+color_t draw_util_colorpixel_to_color(uint32_t colorpixel) {
+ return (color_t){
+ .red = ((colorpixel >> 16) & 0xFF) / 255.0,
+ .green = ((colorpixel >> 8) & 0xFF) / 255.0,
+ .blue = (colorpixel & 0xFF) / 255.0,
+ .colorpixel = colorpixel};
+}
+
/*
* Set the given color as the source color on the surface.
*
*/
-static void draw_util_set_source_color(surface_t *surface, color_t color) {
+static void draw_util_set_source_color(xcb_connection_t *conn, surface_t *surface, color_t color) {
+ RETURN_UNLESS_SURFACE_INITIALIZED(surface);
+
#ifdef CAIRO_SUPPORT
cairo_set_source_rgb(surface->cr, color.red, color.green, color.blue);
#else
uint32_t colorpixel = color.colorpixel;
- xcb_change_gc(xcb_connection, surface->gc, XCB_GC_FOREGROUND | XCB_GC_BACKGROUND,
+ xcb_change_gc(conn, surface->gc, XCB_GC_FOREGROUND | XCB_GC_BACKGROUND,
(uint32_t[]){colorpixel, colorpixel});
#endif
}
*
*/
void draw_util_text(i3String *text, surface_t *surface, color_t fg_color, color_t bg_color, int x, int y, int max_width) {
+ RETURN_UNLESS_SURFACE_INITIALIZED(surface);
+
#ifdef CAIRO_SUPPORT
/* Flush any changes before we draw the text as this might use XCB directly. */
CAIRO_SURFACE_FLUSH(surface->surface);
#endif
set_font_colors(surface->gc, fg_color.colorpixel, bg_color.colorpixel);
- draw_text(text, surface->id, surface->gc, visual_type, x, y, max_width);
+ draw_text(text, surface->id, surface->gc, surface->visual_type, x, y, max_width);
#ifdef CAIRO_SUPPORT
/* Notify cairo that we (possibly) used another way to draw on the surface. */
* surface as well as restoring the cairo state.
*
*/
-void draw_util_rectangle(surface_t *surface, color_t color, double x, double y, double w, double h) {
+void draw_util_rectangle(xcb_connection_t *conn, surface_t *surface, color_t color, double x, double y, double w, double h) {
+ RETURN_UNLESS_SURFACE_INITIALIZED(surface);
+
#ifdef CAIRO_SUPPORT
cairo_save(surface->cr);
* onto the surface rather than blending it. This is a bit more efficient and
* allows better color control for the user when using opacity. */
cairo_set_operator(surface->cr, CAIRO_OPERATOR_SOURCE);
- draw_util_set_source_color(surface, color);
+ draw_util_set_source_color(conn, surface, color);
cairo_rectangle(surface->cr, x, y, w, h);
cairo_fill(surface->cr);
cairo_restore(surface->cr);
#else
- draw_util_set_source_color(surface, color);
+ draw_util_set_source_color(conn, surface, color);
xcb_rectangle_t rect = {x, y, w, h};
- xcb_poly_fill_rectangle(xcb_connection, surface->id, surface->gc, 1, &rect);
+ xcb_poly_fill_rectangle(conn, surface->id, surface->gc, 1, &rect);
#endif
}
* Clears a surface with the given color.
*
*/
-void draw_util_clear_surface(surface_t *surface, color_t color) {
+void draw_util_clear_surface(xcb_connection_t *conn, surface_t *surface, color_t color) {
+ RETURN_UNLESS_SURFACE_INITIALIZED(surface);
+
#ifdef CAIRO_SUPPORT
cairo_save(surface->cr);
* onto the surface rather than blending it. This is a bit more efficient and
* allows better color control for the user when using opacity. */
cairo_set_operator(surface->cr, CAIRO_OPERATOR_SOURCE);
- draw_util_set_source_color(surface, color);
+ draw_util_set_source_color(conn, surface, color);
cairo_paint(surface->cr);
cairo_restore(surface->cr);
#else
- draw_util_set_source_color(surface, color);
+ draw_util_set_source_color(conn, surface, color);
xcb_rectangle_t rect = {0, 0, surface->width, surface->height};
- xcb_poly_fill_rectangle(xcb_connection, surface->id, surface->gc, 1, &rect);
+ xcb_poly_fill_rectangle(conn, surface->id, surface->gc, 1, &rect);
#endif
}
* Copies a surface onto another surface.
*
*/
-void draw_util_copy_surface(surface_t *src, surface_t *dest, double src_x, double src_y,
+void draw_util_copy_surface(xcb_connection_t *conn, surface_t *src, surface_t *dest, double src_x, double src_y,
double dest_x, double dest_y, double width, double height) {
+ RETURN_UNLESS_SURFACE_INITIALIZED(src);
+ RETURN_UNLESS_SURFACE_INITIALIZED(dest);
+
#ifdef CAIRO_SUPPORT
cairo_save(dest->cr);
* onto the surface rather than blending it. This is a bit more efficient and
* allows better color control for the user when using opacity. */
cairo_set_operator(dest->cr, CAIRO_OPERATOR_SOURCE);
- cairo_set_source_surface(dest->cr, src->surface, dest_x - src_x, src_y);
+ cairo_set_source_surface(dest->cr, src->surface, dest_x - src_x, dest_y - src_y);
cairo_rectangle(dest->cr, dest_x, dest_y, width, height);
cairo_fill(dest->cr);
cairo_restore(dest->cr);
#else
- xcb_copy_area(xcb_connection, src->id, dest->id, dest->gc, (int16_t)src_x, (int16_t)src_y,
+ xcb_copy_area(conn, src->id, dest->id, dest->gc, (int16_t)src_x, (int16_t)src_y,
(int16_t)dest_x, (int16_t)dest_y, (uint16_t)width, (uint16_t)height);
#endif
}
projects / i3 / i3 / blobdiff