Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 1 | /* |
| 2 | * Copyright © 2010 Kristian Høgsberg |
| 3 | * |
| 4 | * Permission to use, copy, modify, distribute, and sell this software and its |
| 5 | * documentation for any purpose is hereby granted without fee, provided that |
| 6 | * the above copyright notice appear in all copies and that both that copyright |
| 7 | * notice and this permission notice appear in supporting documentation, and |
| 8 | * that the name of the copyright holders not be used in advertising or |
| 9 | * publicity pertaining to distribution of the software without specific, |
| 10 | * written prior permission. The copyright holders make no representations |
| 11 | * about the suitability of this software for any purpose. It is provided "as |
| 12 | * is" without express or implied warranty. |
| 13 | * |
| 14 | * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, |
| 15 | * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO |
| 16 | * EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY SPECIAL, INDIRECT OR |
| 17 | * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, |
| 18 | * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 19 | * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE |
| 20 | * OF THIS SOFTWARE. |
| 21 | */ |
| 22 | |
| 23 | #include <stdint.h> |
| 24 | #include <stdio.h> |
| 25 | #include <stdlib.h> |
| 26 | #include <string.h> |
| 27 | #include <fcntl.h> |
| 28 | #include <unistd.h> |
| 29 | #include <math.h> |
| 30 | #include <sys/time.h> |
| 31 | #include <cairo.h> |
| 32 | #include <glib.h> |
| 33 | #include <gdk-pixbuf/gdk-pixbuf.h> |
| 34 | |
| 35 | #include "wayland-client.h" |
| 36 | #include "wayland-glib.h" |
| 37 | |
| 38 | #include "window.h" |
| 39 | |
| 40 | static const char socket_name[] = "\0wayland"; |
| 41 | |
| 42 | struct dnd { |
| 43 | struct window *window; |
| 44 | struct display *display; |
| 45 | uint32_t key; |
| 46 | struct item *items[16]; |
Kristian Høgsberg | 1d7ffd3 | 2010-08-25 16:34:05 -0400 | [diff] [blame] | 47 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 48 | struct wl_buffer *translucent_buffer; |
| 49 | struct wl_buffer *opaque_buffer; |
Kristian Høgsberg | 1d7ffd3 | 2010-08-25 16:34:05 -0400 | [diff] [blame] | 50 | int hotspot_x, hotspot_y; |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 51 | uint32_t tag; |
| 52 | const char *drag_type; |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 53 | }; |
| 54 | |
| 55 | struct item { |
| 56 | cairo_surface_t *surface; |
| 57 | int x, y; |
| 58 | }; |
| 59 | |
| 60 | static const int item_width = 64; |
| 61 | static const int item_height = 64; |
| 62 | static const int item_padding = 16; |
| 63 | |
| 64 | static struct item * |
| 65 | item_create(struct display *display, int x, int y) |
| 66 | { |
| 67 | const int petal_count = 3 + random() % 5; |
| 68 | const double r1 = 20 + random() % 10; |
| 69 | const double r2 = 5 + random() % 12; |
| 70 | const double u = (10 + random() % 90) / 100.0; |
| 71 | const double v = (random() % 90) / 100.0; |
| 72 | |
| 73 | cairo_t *cr; |
| 74 | int i; |
| 75 | double t, dt = 2 * M_PI / (petal_count * 2); |
| 76 | double x1, y1, x2, y2, x3, y3; |
| 77 | struct rectangle rect; |
| 78 | struct item *item; |
| 79 | |
| 80 | item = malloc(sizeof *item); |
| 81 | if (item == NULL) |
| 82 | return NULL; |
| 83 | |
| 84 | rect.width = item_width; |
| 85 | rect.height = item_height; |
| 86 | item->surface = display_create_surface(display, &rect); |
| 87 | |
| 88 | item->x = x; |
| 89 | item->y = y; |
| 90 | |
| 91 | cr = cairo_create(item->surface); |
| 92 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
| 93 | cairo_set_source_rgba(cr, 0, 0, 0, 0); |
| 94 | cairo_paint(cr); |
| 95 | |
| 96 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
| 97 | cairo_translate(cr, item_width / 2, item_height / 2); |
| 98 | t = random(); |
| 99 | cairo_move_to(cr, cos(t) * r1, sin(t) * r1); |
| 100 | for (i = 0; i < petal_count; i++, t += dt * 2) { |
| 101 | x1 = cos(t) * r1; |
| 102 | y1 = sin(t) * r1; |
| 103 | x2 = cos(t + dt) * r2; |
| 104 | y2 = sin(t + dt) * r2; |
| 105 | x3 = cos(t + 2 * dt) * r1; |
| 106 | y3 = sin(t + 2 * dt) * r1; |
| 107 | |
| 108 | cairo_curve_to(cr, |
| 109 | x1 - y1 * u, y1 + x1 * u, |
| 110 | x2 + y2 * v, y2 - x2 * v, |
| 111 | x2, y2); |
| 112 | |
| 113 | cairo_curve_to(cr, |
| 114 | x2 - y2 * v, y2 + x2 * v, |
| 115 | x3 + y3 * u, y3 - x3 * u, |
| 116 | x3, y3); |
| 117 | } |
| 118 | |
| 119 | cairo_close_path(cr); |
| 120 | |
| 121 | cairo_set_source_rgba(cr, |
| 122 | 0.5 + (random() % 50) / 49.0, |
| 123 | 0.5 + (random() % 50) / 49.0, |
| 124 | 0.5 + (random() % 50) / 49.0, |
| 125 | 0.5 + (random() % 100) / 99.0); |
| 126 | |
| 127 | cairo_fill_preserve(cr); |
| 128 | |
| 129 | cairo_set_line_width(cr, 1); |
| 130 | cairo_set_source_rgba(cr, |
| 131 | 0.5 + (random() % 50) / 49.0, |
| 132 | 0.5 + (random() % 50) / 49.0, |
| 133 | 0.5 + (random() % 50) / 49.0, |
| 134 | 0.5 + (random() % 100) / 99.0); |
| 135 | cairo_stroke(cr); |
| 136 | |
| 137 | cairo_destroy(cr); |
| 138 | |
| 139 | return item; |
| 140 | } |
| 141 | |
| 142 | static void |
| 143 | dnd_draw(struct dnd *dnd) |
| 144 | { |
| 145 | struct rectangle rectangle; |
| 146 | cairo_t *cr; |
| 147 | cairo_surface_t *wsurface, *surface; |
| 148 | int i; |
| 149 | |
| 150 | window_draw(dnd->window); |
| 151 | |
| 152 | window_get_child_rectangle(dnd->window, &rectangle); |
| 153 | |
| 154 | wsurface = window_get_surface(dnd->window); |
| 155 | surface = cairo_surface_create_similar(wsurface, |
| 156 | CAIRO_CONTENT_COLOR_ALPHA, |
| 157 | rectangle.width, |
| 158 | rectangle.height); |
| 159 | |
| 160 | cr = cairo_create(surface); |
| 161 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
| 162 | cairo_set_source_rgba(cr, 0, 0, 0, 0.8); |
| 163 | cairo_paint(cr); |
| 164 | |
| 165 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
| 166 | for (i = 0; i < ARRAY_LENGTH(dnd->items); i++) { |
| 167 | if (!dnd->items[i]) |
| 168 | continue; |
| 169 | cairo_set_source_surface(cr, dnd->items[i]->surface, |
| 170 | dnd->items[i]->x, dnd->items[i]->y); |
| 171 | cairo_paint(cr); |
| 172 | } |
| 173 | |
| 174 | cairo_destroy(cr); |
| 175 | |
| 176 | window_copy_surface(dnd->window, &rectangle, surface); |
| 177 | window_commit(dnd->window, dnd->key); |
| 178 | cairo_surface_destroy(surface); |
| 179 | } |
| 180 | |
| 181 | static void |
| 182 | redraw_handler(struct window *window, void *data) |
| 183 | { |
| 184 | struct dnd *dnd = data; |
| 185 | |
| 186 | dnd_draw(dnd); |
| 187 | } |
| 188 | |
| 189 | static void |
| 190 | keyboard_focus_handler(struct window *window, |
| 191 | struct input *device, void *data) |
| 192 | { |
| 193 | struct dnd *dnd = data; |
| 194 | |
| 195 | window_schedule_redraw(dnd->window); |
| 196 | } |
| 197 | |
| 198 | static struct item * |
| 199 | dnd_get_item(struct dnd *dnd, int32_t x, int32_t y) |
| 200 | { |
| 201 | struct item *item; |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 202 | struct rectangle rectangle; |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 203 | int i; |
| 204 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 205 | window_get_child_rectangle(dnd->window, &rectangle); |
| 206 | |
| 207 | x -= rectangle.x; |
| 208 | y -= rectangle.y; |
| 209 | |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 210 | for (i = 0; i < ARRAY_LENGTH(dnd->items); i++) { |
| 211 | item = dnd->items[i]; |
| 212 | if (item && |
| 213 | item->x <= x && x < item->x + item_width && |
| 214 | item->y <= y && y < item->y + item_height) |
| 215 | return item; |
| 216 | } |
| 217 | |
| 218 | return NULL; |
| 219 | } |
| 220 | |
| 221 | static void |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 222 | drag_handle_device(void *data, |
| 223 | struct wl_drag *drag, struct wl_input_device *device) |
| 224 | { |
| 225 | } |
| 226 | |
| 227 | static void |
| 228 | drag_pointer_focus(void *data, |
| 229 | struct wl_drag *drag, |
| 230 | uint32_t time, struct wl_surface *surface, |
| 231 | int32_t x, int32_t y, int32_t surface_x, int32_t surface_y) |
| 232 | { |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 233 | struct dnd *dnd = data; |
| 234 | |
| 235 | /* FIXME: We need the offered types before we get the |
| 236 | * pointer_focus event so we know which one we want and can |
| 237 | * send the accept request back. */ |
| 238 | |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 239 | fprintf(stderr, "drag pointer focus %p\n", surface); |
| 240 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 241 | if (!surface) { |
| 242 | dnd->drag_type = NULL; |
| 243 | return; |
| 244 | } |
| 245 | |
| 246 | if (!dnd_get_item(dnd, surface_x, surface_y)) { |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 247 | wl_drag_accept(drag, "text/plain"); |
| 248 | dnd->drag_type = "text/plain"; |
| 249 | } else { |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 250 | wl_drag_accept(drag, NULL); |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 251 | dnd->drag_type = NULL; |
| 252 | } |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 253 | } |
| 254 | |
| 255 | static void |
| 256 | drag_offer(void *data, |
| 257 | struct wl_drag *drag, const char *type) |
| 258 | { |
| 259 | fprintf(stderr, "drag offer %s\n", type); |
| 260 | } |
| 261 | |
| 262 | static void |
| 263 | drag_motion(void *data, |
| 264 | struct wl_drag *drag, |
| 265 | uint32_t time, |
| 266 | int32_t x, int32_t y, int32_t surface_x, int32_t surface_y) |
| 267 | { |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 268 | struct dnd *dnd = data; |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 269 | |
| 270 | /* FIXME: Need to correlate this with the offer event. |
| 271 | * Problem is, we don't know when we've seen that last offer |
| 272 | * event, and we might need to look at all of them before we |
| 273 | * can decide which one to go with. */ |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 274 | if (!dnd_get_item(dnd, surface_x, surface_y)) { |
| 275 | wl_drag_accept(drag, "text/plain"); |
| 276 | dnd->drag_type = "text/plain"; |
| 277 | } else { |
| 278 | wl_drag_accept(drag, NULL); |
| 279 | dnd->drag_type = NULL; |
| 280 | } |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 281 | } |
| 282 | |
| 283 | static void |
| 284 | drag_target(void *data, |
| 285 | struct wl_drag *drag, const char *mime_type) |
| 286 | { |
Kristian Høgsberg | 1d7ffd3 | 2010-08-25 16:34:05 -0400 | [diff] [blame] | 287 | struct dnd *dnd = data; |
| 288 | struct input *input; |
| 289 | struct wl_input_device *device; |
| 290 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 291 | fprintf(stderr, "target %s\n", mime_type); |
Kristian Høgsberg | 1d7ffd3 | 2010-08-25 16:34:05 -0400 | [diff] [blame] | 292 | input = wl_drag_get_user_data(drag); |
| 293 | device = input_get_input_device(input); |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 294 | if (mime_type) |
| 295 | wl_input_device_attach(device, dnd->opaque_buffer, |
| 296 | dnd->hotspot_x, dnd->hotspot_y); |
| 297 | else |
| 298 | wl_input_device_attach(device, dnd->translucent_buffer, |
| 299 | dnd->hotspot_x, dnd->hotspot_y); |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 300 | } |
| 301 | |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 302 | static gboolean |
| 303 | drop_io_func(GIOChannel *source, GIOCondition condition, gpointer data) |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 304 | { |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 305 | struct dnd *dnd = data; |
| 306 | char buffer[256]; |
| 307 | int fd; |
| 308 | unsigned int len; |
| 309 | GError *err = NULL; |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 310 | |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 311 | g_io_channel_read_chars(source, buffer, sizeof buffer, &len, &err); |
| 312 | fprintf(stderr, "read %d bytes: %s\n", len, buffer); |
| 313 | fd = g_io_channel_unix_get_fd(source); |
| 314 | close(fd); |
| 315 | g_source_remove(dnd->tag); |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 316 | |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 317 | g_io_channel_unref(source); |
| 318 | |
| 319 | return TRUE; |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 320 | } |
| 321 | |
| 322 | static void |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 323 | drag_drop(void *data, struct wl_drag *drag) |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 324 | { |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 325 | struct dnd *dnd = data; |
| 326 | int p[2]; |
| 327 | GIOChannel *channel; |
| 328 | |
| 329 | if (!dnd->drag_type) { |
| 330 | fprintf(stderr, "got 'drop', but no target\n"); |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 331 | /* FIXME: Should send response so compositor and |
| 332 | * source knows it's over. Can't send -1 to indicate |
| 333 | * 'no target' though becauses of the way fd passing |
| 334 | * currently works. */ |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 335 | return; |
| 336 | } |
| 337 | |
| 338 | fprintf(stderr, "got 'drop', sending write end of pipe\n"); |
| 339 | |
| 340 | pipe(p); |
| 341 | wl_drag_receive(drag, p[1]); |
| 342 | close(p[1]); |
| 343 | |
| 344 | channel = g_io_channel_unix_new(p[0]); |
| 345 | dnd->tag = g_io_add_watch(channel, G_IO_IN, drop_io_func, dnd); |
| 346 | } |
| 347 | |
| 348 | static void |
| 349 | drag_finish(void *data, struct wl_drag *drag, int fd) |
| 350 | { |
| 351 | char text[] = "[drop data]"; |
| 352 | |
| 353 | fprintf(stderr, "got 'finish', fd %d, sending message\n", fd); |
| 354 | |
| 355 | write(fd, text, sizeof text); |
| 356 | close(fd); |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 357 | } |
| 358 | |
| 359 | static const struct wl_drag_listener drag_listener = { |
| 360 | drag_handle_device, |
| 361 | drag_pointer_focus, |
| 362 | drag_offer, |
| 363 | drag_motion, |
| 364 | drag_target, |
Kristian Høgsberg | 4eb5360 | 2010-08-27 20:29:56 -0400 | [diff] [blame] | 365 | drag_drop, |
| 366 | drag_finish |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 367 | }; |
| 368 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 369 | static cairo_surface_t * |
| 370 | create_drag_cursor(struct dnd *dnd, struct item *item, int32_t x, int32_t y, |
| 371 | double opacity) |
| 372 | { |
| 373 | cairo_surface_t *surface, *pointer; |
| 374 | int32_t pointer_width, pointer_height, hotspot_x, hotspot_y; |
| 375 | struct rectangle rectangle; |
| 376 | cairo_pattern_t *pattern; |
| 377 | cairo_t *cr; |
| 378 | |
| 379 | pointer = display_get_pointer_surface(dnd->display, |
| 380 | POINTER_DRAGGING, |
| 381 | &pointer_width, |
| 382 | &pointer_height, |
| 383 | &hotspot_x, |
| 384 | &hotspot_y); |
| 385 | |
| 386 | rectangle.width = item_width + 2 * pointer_width; |
| 387 | rectangle.height = item_height + 2 * pointer_height; |
| 388 | surface = display_create_surface(dnd->display, &rectangle); |
| 389 | |
| 390 | cr = cairo_create(surface); |
| 391 | cairo_translate(cr, pointer_width, pointer_height); |
| 392 | |
| 393 | cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE); |
| 394 | cairo_set_source_rgba(cr, 0, 0, 0, 0); |
| 395 | cairo_paint(cr); |
| 396 | |
| 397 | cairo_set_operator(cr, CAIRO_OPERATOR_OVER); |
| 398 | cairo_set_source_surface(cr, item->surface, 0, 0); |
| 399 | pattern = cairo_pattern_create_rgba(0, 0, 0, opacity); |
| 400 | cairo_mask(cr, pattern); |
| 401 | cairo_pattern_destroy(pattern); |
| 402 | |
| 403 | cairo_set_source_surface(cr, pointer, |
| 404 | x - item->x - hotspot_x, |
| 405 | y - item->y - hotspot_y); |
| 406 | cairo_surface_destroy(pointer); |
| 407 | cairo_paint(cr); |
| 408 | /* FIXME: more cairo-gl brokeness */ |
| 409 | display_flush_cairo_device(dnd->display); |
| 410 | cairo_destroy(cr); |
| 411 | |
| 412 | dnd->hotspot_x = pointer_width + x - item->x; |
| 413 | dnd->hotspot_y = pointer_height + y - item->y; |
| 414 | |
| 415 | return surface; |
| 416 | } |
| 417 | |
Kristian Høgsberg | 506e20e | 2010-08-19 17:26:02 -0400 | [diff] [blame] | 418 | static void |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 419 | dnd_button_handler(struct window *window, |
| 420 | struct input *input, uint32_t time, |
| 421 | int button, int state, void *data) |
| 422 | { |
| 423 | struct dnd *dnd = data; |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 424 | int32_t x, y; |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 425 | struct item *item; |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 426 | cairo_surface_t *surface; |
| 427 | struct rectangle rectangle; |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 428 | |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 429 | window_get_child_rectangle(dnd->window, &rectangle); |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 430 | input_get_position(input, &x, &y); |
| 431 | item = dnd_get_item(dnd, x, y); |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 432 | x -= rectangle.x; |
| 433 | y -= rectangle.y; |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 434 | |
| 435 | if (item && state == 1) { |
| 436 | fprintf(stderr, "start drag, item %p\n", item); |
| 437 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 438 | surface = create_drag_cursor(dnd, item, x, y, 1); |
| 439 | dnd->opaque_buffer = |
| 440 | display_get_buffer_for_surface(dnd->display, surface); |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 441 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 442 | surface = create_drag_cursor(dnd, item, x, y, 0.2); |
| 443 | dnd->translucent_buffer = |
| 444 | display_get_buffer_for_surface(dnd->display, surface); |
Kristian Høgsberg | 1d7ffd3 | 2010-08-25 16:34:05 -0400 | [diff] [blame] | 445 | |
| 446 | window_start_drag(window, input, time); |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 447 | |
| 448 | /* FIXME: We leak the surface because we can't free it |
| 449 | * until the server has referenced it. */ |
| 450 | } |
| 451 | } |
| 452 | |
| 453 | static int |
| 454 | dnd_motion_handler(struct window *window, |
| 455 | struct input *input, uint32_t time, |
| 456 | int32_t x, int32_t y, |
| 457 | int32_t sx, int32_t sy, void *data) |
| 458 | { |
| 459 | struct dnd *dnd = data; |
| 460 | struct item *item; |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 461 | |
Kristian Høgsberg | e968f9c | 2010-08-27 22:18:00 -0400 | [diff] [blame^] | 462 | item = dnd_get_item(dnd, sx, sy); |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 463 | |
| 464 | if (item) |
| 465 | return POINTER_HAND1; |
| 466 | else |
| 467 | return POINTER_LEFT_PTR; |
| 468 | } |
| 469 | |
| 470 | static struct dnd * |
| 471 | dnd_create(struct display *display) |
| 472 | { |
| 473 | struct dnd *dnd; |
| 474 | gchar *title; |
| 475 | int i, x, y; |
| 476 | struct rectangle rectangle; |
| 477 | |
| 478 | dnd = malloc(sizeof *dnd); |
| 479 | if (dnd == NULL) |
| 480 | return dnd; |
| 481 | memset(dnd, 0, sizeof *dnd); |
| 482 | |
| 483 | title = g_strdup_printf("Wayland Drag and Drop Demo"); |
| 484 | |
| 485 | dnd->window = window_create(display, title, 100, 100, 500, 400); |
| 486 | dnd->display = display; |
| 487 | dnd->key = 100; |
| 488 | |
| 489 | for (i = 0; i < ARRAY_LENGTH(dnd->items); i++) { |
| 490 | x = (i % 4) * (item_width + item_padding) + item_padding; |
| 491 | y = (i / 4) * (item_height + item_padding) + item_padding; |
| 492 | if ((i ^ (i >> 2)) & 1) |
| 493 | dnd->items[i] = item_create(display, x, y); |
| 494 | else |
| 495 | dnd->items[i] = NULL; |
| 496 | } |
| 497 | |
| 498 | window_set_user_data(dnd->window, dnd); |
| 499 | window_set_redraw_handler(dnd->window, redraw_handler); |
| 500 | window_set_keyboard_focus_handler(dnd->window, |
| 501 | keyboard_focus_handler); |
| 502 | window_set_button_handler(dnd->window, |
| 503 | dnd_button_handler); |
| 504 | |
| 505 | window_set_motion_handler(dnd->window, |
| 506 | dnd_motion_handler); |
| 507 | |
| 508 | rectangle.width = 4 * (item_width + item_padding) + item_padding; |
| 509 | rectangle.height = 4 * (item_height + item_padding) + item_padding; |
| 510 | window_set_child_size(dnd->window, &rectangle); |
| 511 | |
Kristian Høgsberg | 1d7ffd3 | 2010-08-25 16:34:05 -0400 | [diff] [blame] | 512 | display_add_drag_listener(display, &drag_listener, dnd); |
| 513 | |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 514 | dnd_draw(dnd); |
| 515 | |
| 516 | return dnd; |
| 517 | } |
| 518 | |
| 519 | static const GOptionEntry option_entries[] = { |
| 520 | { NULL } |
| 521 | }; |
| 522 | |
| 523 | int |
| 524 | main(int argc, char *argv[]) |
| 525 | { |
| 526 | struct display *d; |
| 527 | struct dnd *dnd; |
| 528 | struct timeval tv; |
| 529 | |
| 530 | gettimeofday(&tv, NULL); |
| 531 | srandom(tv.tv_usec); |
| 532 | |
| 533 | d = display_create(&argc, &argv, option_entries); |
| 534 | |
Kristian Høgsberg | b8cc24e | 2010-08-18 20:31:06 -0400 | [diff] [blame] | 535 | dnd = dnd_create (d); |
| 536 | |
| 537 | display_run(d); |
| 538 | |
| 539 | return 0; |
| 540 | } |