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authorLibravatar Christoph Gysin <christoph.gysin@gmail.com>2016-01-25 21:16:00 +0200
committerLibravatar Christoph Gysin <christoph.gysin@gmail.com>2016-01-25 21:18:53 +0200
commit2b58c03ed58d8f06695631af3af73d70e67cc3b7 (patch)
tree6804cc07ee1557efdf37eabea05f33ba5e895281 /swaylock
parentMerge pull request #474 from christophgysin/swaylock_pam (diff)
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swaylock: extract render_image
Diffstat (limited to 'swaylock')
-rw-r--r--swaylock/main.c177
1 files changed, 92 insertions, 85 deletions
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
115 } 115 }
116} 116}
117 117
118void render_image(struct window *window, cairo_surface_t *image, enum scaling_mode scaling_mode) {
119 double width = cairo_image_surface_get_width(image);
120 double height = cairo_image_surface_get_height(image);
121
122 switch (scaling_mode) {
123 case SCALING_MODE_STRETCH:
124 cairo_scale(window->cairo,
125 (double) window->width / width,
126 (double) window->height / height);
127 cairo_set_source_surface(window->cairo, image, 0, 0);
128 break;
129 case SCALING_MODE_FILL:
130 {
131 double window_ratio = (double) window->width / window->height;
132 double bg_ratio = width / height;
133
134 if (window_ratio > bg_ratio) {
135 double scale = (double) window->width / width;
136 cairo_scale(window->cairo, scale, scale);
137 cairo_set_source_surface(window->cairo, image,
138 0,
139 (double) window->height/2 / scale - height/2);
140 } else {
141 double scale = (double) window->height / height;
142 cairo_scale(window->cairo, scale, scale);
143 cairo_set_source_surface(window->cairo, image,
144 (double) window->width/2 / scale - width/2,
145 0);
146 }
147 break;
148 }
149 case SCALING_MODE_FIT:
150 {
151 double window_ratio = (double) window->width / window->height;
152 double bg_ratio = width / height;
153
154 if (window_ratio > bg_ratio) {
155 double scale = (double) window->height / height;
156 cairo_scale(window->cairo, scale, scale);
157 cairo_set_source_surface(window->cairo, image,
158 (double) window->width/2 / scale - width/2,
159 0);
160 } else {
161 double scale = (double) window->width / width;
162 cairo_scale(window->cairo, scale, scale);
163 cairo_set_source_surface(window->cairo, image,
164 0,
165 (double) window->height/2 / scale - height/2);
166 }
167 break;
168 }
169 case SCALING_MODE_CENTER:
170 cairo_set_source_surface(window->cairo, image,
171 (double) window->width/2 - width/2,
172 (double) window->height/2 - height/2);
173 break;
174 case SCALING_MODE_TILE:
175 {
176 cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
177 cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
178 cairo_set_source(window->cairo, pattern);
179 break;
180 }
181 }
182
183 cairo_paint(window->cairo);
184
185 window_render(window);
186}
187
118int main(int argc, char **argv) { 188int main(int argc, char **argv) {
119 char *image_path = NULL; 189 char *image_path = NULL;
120 char *scaling_mode_str = "fit"; 190 char *scaling_mode_str = "fit";
@@ -176,6 +246,21 @@ int main(int argc, char **argv) {
176 exit(EXIT_FAILURE); 246 exit(EXIT_FAILURE);
177 } 247 }
178 248
249 enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
250 if (strcmp(scaling_mode_str, "stretch") == 0) {
251 scaling_mode = SCALING_MODE_STRETCH;
252 } else if (strcmp(scaling_mode_str, "fill") == 0) {
253 scaling_mode = SCALING_MODE_FILL;
254 } else if (strcmp(scaling_mode_str, "fit") == 0) {
255 scaling_mode = SCALING_MODE_FIT;
256 } else if (strcmp(scaling_mode_str, "center") == 0) {
257 scaling_mode = SCALING_MODE_CENTER;
258 } else if (strcmp(scaling_mode_str, "tile") == 0) {
259 scaling_mode = SCALING_MODE_TILE;
260 } else {
261 sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
262 }
263
179 password = malloc(1024); // TODO: Let this grow 264 password = malloc(1024); // TODO: Let this grow
180 password[0] = '\0'; 265 password[0] = '\0';
181 surfaces = create_list(); 266 surfaces = create_list();
@@ -197,13 +282,14 @@ int main(int argc, char **argv) {
197 282
198 registry->input->notify = notify_key; 283 registry->input->notify = notify_key;
199 284
285 cairo_surface_t *image = NULL;
200#ifdef WITH_GDK_PIXBUF 286#ifdef WITH_GDK_PIXBUF
201 GError *err = NULL; 287 GError *err = NULL;
202 GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(image_path, &err); 288 GdkPixbuf *pixbuf = gdk_pixbuf_new_from_file(image_path, &err);
203 if (!pixbuf) { 289 if (!pixbuf) {
204 sway_abort("Failed to load background image."); 290 sway_abort("Failed to load background image.");
205 } 291 }
206 cairo_surface_t *image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf); 292 image = gdk_cairo_image_surface_create_from_pixbuf(pixbuf);
207 g_object_unref(pixbuf); 293 g_object_unref(pixbuf);
208#else 294#else
209 cairo_surface_t *image = cairo_image_surface_create_from_png(argv[1]); 295 cairo_surface_t *image = cairo_image_surface_create_from_png(argv[1]);
@@ -211,93 +297,14 @@ int main(int argc, char **argv) {
211 if (!image) { 297 if (!image) {
212 sway_abort("Failed to read background image."); 298 sway_abort("Failed to read background image.");
213 } 299 }
214 double width = cairo_image_surface_get_width(image);
215 double height = cairo_image_surface_get_height(image);
216
217 enum scaling_mode scaling_mode = SCALING_MODE_STRETCH;
218 if (strcmp(scaling_mode_str, "stretch") == 0) {
219 scaling_mode = SCALING_MODE_STRETCH;
220 } else if (strcmp(scaling_mode_str, "fill") == 0) {
221 scaling_mode = SCALING_MODE_FILL;
222 } else if (strcmp(scaling_mode_str, "fit") == 0) {
223 scaling_mode = SCALING_MODE_FIT;
224 } else if (strcmp(scaling_mode_str, "center") == 0) {
225 scaling_mode = SCALING_MODE_CENTER;
226 } else if (strcmp(scaling_mode_str, "tile") == 0) {
227 scaling_mode = SCALING_MODE_TILE;
228 } else {
229 sway_abort("Unsupported scaling mode: %s", scaling_mode_str);
230 }
231 300
232 for (i = 0; i < surfaces->length; ++i) { 301 for (i = 0; i < surfaces->length; ++i) {
233 struct window *window = surfaces->items[i]; 302 struct window *window = surfaces->items[i];
234 if (window_prerender(window) && window->cairo) { 303 if (!window_prerender(window) || !window->cairo) {
235 switch (scaling_mode) { 304 continue;
236 case SCALING_MODE_STRETCH: 305 }
237 cairo_scale(window->cairo, 306 if (image) {
238 (double) window->width / width, 307 render_image(window, image, scaling_mode);
239 (double) window->height / height);
240 cairo_set_source_surface(window->cairo, image, 0, 0);
241 break;
242 case SCALING_MODE_FILL:
243 {
244 double window_ratio = (double) window->width / window->height;
245 double bg_ratio = width / height;
246
247 if (window_ratio > bg_ratio) {
248 double scale = (double) window->width / width;
249 cairo_scale(window->cairo, scale, scale);
250 cairo_set_source_surface(window->cairo, image,
251 0,
252 (double) window->height/2 / scale - height/2);
253 } else {
254 double scale = (double) window->height / height;
255 cairo_scale(window->cairo, scale, scale);
256 cairo_set_source_surface(window->cairo, image,
257 (double) window->width/2 / scale - width/2,
258 0);
259 }
260 break;
261 }
262 case SCALING_MODE_FIT:
263 {
264 double window_ratio = (double) window->width / window->height;
265 double bg_ratio = width / height;
266
267 if (window_ratio > bg_ratio) {
268 double scale = (double) window->height / height;
269 cairo_scale(window->cairo, scale, scale);
270 cairo_set_source_surface(window->cairo, image,
271 (double) window->width/2 / scale - width/2,
272 0);
273 } else {
274 double scale = (double) window->width / width;
275 cairo_scale(window->cairo, scale, scale);
276 cairo_set_source_surface(window->cairo, image,
277 0,
278 (double) window->height/2 / scale - height/2);
279 }
280 break;
281 }
282 case SCALING_MODE_CENTER:
283 cairo_set_source_surface(window->cairo, image,
284 (double) window->width/2 - width/2,
285 (double) window->height/2 - height/2);
286 break;
287 case SCALING_MODE_TILE:
288 {
289 cairo_pattern_t *pattern = cairo_pattern_create_for_surface(image);
290 cairo_pattern_set_extend(pattern, CAIRO_EXTEND_REPEAT);
291 cairo_set_source(window->cairo, pattern);
292 break;
293 }
294 default:
295 sway_abort("Scaling mode '%s' not implemented yet!", scaling_mode_str);
296 }
297
298 cairo_paint(window->cairo);
299
300 window_render(window);
301 } 308 }
302 } 309 }
303 310
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