From 2b58c03ed58d8f06695631af3af73d70e67cc3b7 Mon Sep 17 00:00:00 2001 From: Christoph Gysin Date: Mon, 25 Jan 2016 21:16:00 +0200 Subject: swaylock: extract render_image --- swaylock/main.c | 177 +++++++++++++++++++++++++++++--------------------------- 1 file changed, 92 insertions(+), 85 deletions(-) (limited to 'swaylock/main.c') diff --git a/swaylock/main.c b/swaylock/main.c index 9530b6dc..d58fc868 100644 --- a/swaylock/main.c +++ b/swaylock/main.c @@ -115,6 +115,76 @@ void notify_key(enum wl_keyboard_key_state state, xkb_keysym_t sym, uint32_t cod } } +void render_image(struct window *window, cairo_surface_t *image, enum scaling_mode scaling_mode) { + double width = cairo_image_surface_get_width(image); + double height = cairo_image_surface_get_height(image); + + switch (scaling_mode) { + case SCALING_MODE_STRETCH: + cairo_scale(window->cairo, + (double) window->width / width, + (double) window->height / height); + cairo_set_source_surface(window->cairo, image, 0, 0); + break; + case SCALING_MODE_FILL: + { + double window_ratio = (double) window->width / window->height; + double bg_ratio = width / height; + + if (window_ratio > bg_ratio) { + double scale = (double) window->width / width; + cairo_scale(window->cairo, scale, scale); + cairo_set_source_surface(window->cairo, image, + 0, + (double) window->height/2 / scale - height/2); + } else { + double scale = (double) window->height / height; + cairo_scale(window->cairo, scale, scale); + cairo_set_source_surface(window->cairo, image, + (double) window->width/2 / scale - width/2, + 0); + } + break; + } + case SCALING_MODE_FIT: + { + double window_ratio = (double) window->width / window->height; + double bg_ratio = width / height; + + if (window_ratio > bg_ratio) { + double scale = (double) window->height / height; + cairo_scale(window->cairo, scale, scale); + cairo_set_source_surface(window->cairo, image, + (double) window->width/2 / scale - width/2, + 0); + } else { + double scale = (double) window->width / width; + cairo_scale(window->cairo, scale, scale); + cairo_set_source_surface(window->cairo, image, + 0, + (double) window->height/2 / scale - height/2); + } + break; + } + case SCALING_MODE_CENTER: + cairo_set_source_surface(window->cairo, image, + (double) window->width/2 - width/2, + (double) window->height/2 - height/2); + break; + case SCALING_MODE_TILE: + { + cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image); + cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); + cairo_set_source(window->cairo, pattern); + break; + } + } + + cairo_paint(window->cairo); + + window_render(window); +} + int main(int argc, char **argv) { char *image_path = NULL; char *scaling_mode_str = "fit"; @@ -176,6 +246,21 @@ int main(int argc, char **argv) { exit(EXIT_FAILURE); } + enum scaling_mode scaling_mode = SCALING_MODE_STRETCH; + if (strcmp(scaling_mode_str, "stretch") == 0) { + scaling_mode = SCALING_MODE_STRETCH; + } else if (strcmp(scaling_mode_str, "fill") == 0) { + scaling_mode = SCALING_MODE_FILL; + } else if (strcmp(scaling_mode_str, "fit") == 0) { + scaling_mode = SCALING_MODE_FIT; + } else if (strcmp(scaling_mode_str, "center") == 0) { + scaling_mode = SCALING_MODE_CENTER; + } else if (strcmp(scaling_mode_str, "tile") == 0) { + scaling_mode = SCALING_MODE_TILE; + } else { + sway_abort("Unsupported scaling mode: %s", scaling_mode_str); + } + password = malloc(1024); // TODO: Let this grow password[0] = '\0'; surfaces = create_list(); @@ -197,13 +282,14 @@ int main(int argc, char **argv) { registry->input->notify = notify_key; + cairo_surface_t *image = NULL; #ifdef WITH_GDK_PIXBUF GError *err = NULL; GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(image_path, &err); if (!pixbuf) { sway_abort("Failed to load background image."); } - cairo_surface_t *image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf); + image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf); g_object_unref(pixbuf); #else cairo_surface_t *image = cairo_image_surface_create_from_png(argv[1]); @@ -211,93 +297,14 @@ int main(int argc, char **argv) { if (!image) { sway_abort("Failed to read background image."); } - double width = cairo_image_surface_get_width(image); - double height = cairo_image_surface_get_height(image); - - enum scaling_mode scaling_mode = SCALING_MODE_STRETCH; - if (strcmp(scaling_mode_str, "stretch") == 0) { - scaling_mode = SCALING_MODE_STRETCH; - } else if (strcmp(scaling_mode_str, "fill") == 0) { - scaling_mode = SCALING_MODE_FILL; - } else if (strcmp(scaling_mode_str, "fit") == 0) { - scaling_mode = SCALING_MODE_FIT; - } else if (strcmp(scaling_mode_str, "center") == 0) { - scaling_mode = SCALING_MODE_CENTER; - } else if (strcmp(scaling_mode_str, "tile") == 0) { - scaling_mode = SCALING_MODE_TILE; - } else { - sway_abort("Unsupported scaling mode: %s", scaling_mode_str); - } for (i = 0; i < surfaces->length; ++i) { struct window *window = surfaces->items[i]; - if (window_prerender(window) && window->cairo) { - switch (scaling_mode) { - case SCALING_MODE_STRETCH: - cairo_scale(window->cairo, - (double) window->width / width, - (double) window->height / height); - cairo_set_source_surface(window->cairo, image, 0, 0); - break; - case SCALING_MODE_FILL: - { - double window_ratio = (double) window->width / window->height; - double bg_ratio = width / height; - - if (window_ratio > bg_ratio) { - double scale = (double) window->width / width; - cairo_scale(window->cairo, scale, scale); - cairo_set_source_surface(window->cairo, image, - 0, - (double) window->height/2 / scale - height/2); - } else { - double scale = (double) window->height / height; - cairo_scale(window->cairo, scale, scale); - cairo_set_source_surface(window->cairo, image, - (double) window->width/2 / scale - width/2, - 0); - } - break; - } - case SCALING_MODE_FIT: - { - double window_ratio = (double) window->width / window->height; - double bg_ratio = width / height; - - if (window_ratio > bg_ratio) { - double scale = (double) window->height / height; - cairo_scale(window->cairo, scale, scale); - cairo_set_source_surface(window->cairo, image, - (double) window->width/2 / scale - width/2, - 0); - } else { - double scale = (double) window->width / width; - cairo_scale(window->cairo, scale, scale); - cairo_set_source_surface(window->cairo, image, - 0, - (double) window->height/2 / scale - height/2); - } - break; - } - case SCALING_MODE_CENTER: - cairo_set_source_surface(window->cairo, image, - (double) window->width/2 - width/2, - (double) window->height/2 - height/2); - break; - case SCALING_MODE_TILE: - { - cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image); - cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT); - cairo_set_source(window->cairo, pattern); - break; - } - default: - sway_abort("Scaling mode '%s' not implemented yet!", scaling_mode_str); - } - - cairo_paint(window->cairo); - - window_render(window); + if (!window_prerender(window) || !window->cairo) { + continue; + } + if (image) { + render_image(window, image, scaling_mode); } } -- cgit v1.2.3-54-g00ecf