2 * Copyright © 2012 Openismus GmbH
4 * Permission to use, copy, modify, distribute, and sell this software and
5 * its documentation for any purpose is hereby granted without fee, provided
6 * that the above copyright notice appear in all copies and that both that
7 * copyright notice and this permission notice appear in supporting
8 * documentation, and that the name of the copyright holders not be used in
9 * advertising or publicity pertaining to distribution of the software
10 * without specific, written prior permission. The copyright holders make
11 * no representations about the suitability of this software for any
12 * purpose. It is provided "as is" without express or implied warranty.
14 * THE COPYRIGHT HOLDERS DISCLAIM ALL WARRANTIES WITH REGARD TO THIS
15 * SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
16 * FITNESS, IN NO EVENT SHALL THE COPYRIGHT HOLDERS BE LIABLE FOR ANY
17 * SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER
18 * RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF
19 * CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
20 * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
28 #include <linux/input.h>
32 #include "text-client-protocol.h"
35 struct widget *widget;
38 struct rectangle allocation;
39 struct text_model *model;
43 struct text_model_factory *text_model_factory;
44 struct display *display;
45 struct window *window;
46 struct widget *widget;
47 struct text_entry *entry;
48 struct text_entry *editor;
52 text_entry_append(struct text_entry *entry, const char *text)
54 entry->text = realloc(entry->text, strlen(entry->text) + strlen(text) + 1);
55 strcat(entry->text, text);
60 text_model_commit_string(void *data,
61 struct text_model *text_model,
65 struct text_entry *entry = data;
67 text_entry_append(entry, text);
69 widget_schedule_redraw(entry->widget);
73 text_model_preedit_string(void *data,
74 struct text_model *text_model,
81 text_model_preedit_styling(void *data,
82 struct text_model *text_model)
87 text_model_key(void *data,
88 struct text_model *text_model)
93 text_model_selection_replacement(void *data,
94 struct text_model *text_model)
99 text_model_direction(void *data,
100 struct text_model *text_model)
105 text_model_locale(void *data,
106 struct text_model *text_model)
110 static const struct text_model_listener text_model_listener = {
111 text_model_commit_string,
112 text_model_preedit_string,
113 text_model_preedit_styling,
115 text_model_selection_replacement,
116 text_model_direction,
120 static struct text_entry*
121 text_entry_create(struct editor *editor, const char *text)
123 struct text_entry *entry;
124 struct wl_surface *surface;
126 entry = malloc(sizeof *entry);
128 surface = window_get_wl_surface(editor->window);
130 entry->widget = editor->widget;
131 entry->text = strdup(text);
133 entry->model = text_model_factory_create_text_model(editor->text_model_factory, surface);
134 text_model_add_listener(entry->model, &text_model_listener, entry);
140 text_entry_destroy(struct text_entry *entry)
142 text_model_destroy(entry->model);
148 text_entry_draw(struct text_entry *entry, cairo_t *cr)
151 cairo_set_operator(cr, CAIRO_OPERATOR_OVER);
153 cairo_rectangle(cr, entry->allocation.x, entry->allocation.y, entry->allocation.width, entry->allocation.height);
156 cairo_translate(cr, entry->allocation.x, entry->allocation.y);
157 cairo_rectangle(cr, 0, 0, entry->allocation.width, entry->allocation.height);
158 cairo_set_source_rgba(cr, 1, 1, 1, 0.5);
161 cairo_rectangle(cr, 0, 0, entry->allocation.width, entry->allocation.height);
162 cairo_set_source_rgba(cr, 0, 0, 1, 0.5);
166 cairo_set_source_rgb(cr, 0, 0, 0);
167 cairo_select_font_face(cr, "sans",
168 CAIRO_FONT_SLANT_NORMAL,
169 CAIRO_FONT_WEIGHT_BOLD);
170 cairo_set_font_size(cr, 14);
172 cairo_translate(cr, 10, entry->allocation.height / 2);
173 cairo_show_text(cr, entry->text);
179 redraw_handler(struct widget *widget, void *data)
181 struct editor *editor = data;
182 cairo_surface_t *surface;
183 struct rectangle allocation;
186 surface = window_get_surface(editor->window);
187 widget_get_allocation(editor->widget, &allocation);
189 cr = cairo_create(surface);
190 cairo_rectangle(cr, allocation.x, allocation.y, allocation.width, allocation.height);
193 cairo_translate(cr, allocation.x, allocation.y);
195 /* Draw background */
196 cairo_push_group(cr);
197 cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
198 cairo_set_source_rgba(cr, 1, 1, 1, 1);
199 cairo_rectangle(cr, 0, 0, allocation.width, allocation.height);
203 text_entry_draw(editor->entry, cr);
206 text_entry_draw(editor->editor, cr);
208 cairo_pop_group_to_source(cr);
212 cairo_surface_destroy(surface);
216 text_entry_allocate(struct text_entry *entry, int32_t x, int32_t y,
217 int32_t width, int32_t height)
219 entry->allocation.x = x;
220 entry->allocation.y = y;
221 entry->allocation.width = width;
222 entry->allocation.height = height;
226 resize_handler(struct widget *widget,
227 int32_t width, int32_t height, void *data)
229 struct editor *editor = data;
231 text_entry_allocate(editor->entry, 20, 20, width - 40, height / 2 - 40);
232 text_entry_allocate(editor->editor, 20, height / 2 + 20, width - 40, height / 2 - 40);
236 rectangle_contains(struct rectangle *rectangle, int32_t x, int32_t y)
238 if (x < rectangle->x || x > rectangle->x + rectangle->width) {
242 if (y < rectangle->y || y > rectangle->y + rectangle->height) {
250 text_entry_activate(struct text_entry *entry)
252 text_model_activate(entry->model);
256 text_entry_deactivate(struct text_entry *entry)
258 text_model_deactivate(entry->model);
262 button_handler(struct widget *widget,
263 struct input *input, uint32_t time,
265 enum wl_pointer_button_state state, void *data)
267 struct editor *editor = data;
268 struct rectangle allocation;
271 if (state != WL_POINTER_BUTTON_STATE_PRESSED || button != BTN_LEFT) {
275 input_get_position(input, &x, &y);
277 widget_get_allocation(editor->widget, &allocation);
281 int32_t activate_entry = rectangle_contains(&editor->entry->allocation, x, y);
282 int32_t activate_editor = rectangle_contains(&editor->editor->allocation, x, y);
283 assert(!(activate_entry && activate_editor));
285 if (activate_entry) {
286 if (editor->editor->active)
287 text_entry_deactivate(editor->editor);
288 if (!editor->entry->active)
289 text_entry_activate(editor->entry);
290 } else if (activate_editor) {
291 if (editor->entry->active)
292 text_entry_deactivate(editor->entry);
293 if (!editor->editor->active)
294 text_entry_activate(editor->editor);
296 if (editor->entry->active)
297 text_entry_deactivate(editor->entry);
298 if (editor->editor->active)
299 text_entry_deactivate(editor->editor);
301 editor->entry->active = activate_entry;
302 editor->editor->active = activate_editor;
303 assert(!(editor->entry->active && editor->editor->active));
305 widget_schedule_redraw(widget);
309 global_handler(struct wl_display *display, uint32_t id,
310 const char *interface, uint32_t version, void *data)
312 struct editor *editor = data;
314 if (!strcmp(interface, "text_model_factory")) {
315 editor->text_model_factory = wl_display_bind(display, id,
316 &text_model_factory_interface);
317 } else if (!strcmp(interface, "wl_seat")) {
318 fprintf(stderr, "wl_seat added\n");
323 main(int argc, char *argv[])
325 struct editor editor;
327 editor.display = display_create(argc, argv);
328 if (editor.display == NULL) {
329 fprintf(stderr, "failed to create display: %m\n");
332 wl_display_add_global_listener(display_get_display(editor.display),
333 global_handler, &editor);
336 editor.window = window_create(editor.display);
337 editor.widget = frame_create(editor.window, &editor);
339 editor.entry = text_entry_create(&editor, "Entry");
340 editor.editor = text_entry_create(&editor, "Editor");
342 window_set_title(editor.window, "Text Editor");
344 widget_set_redraw_handler(editor.widget, redraw_handler);
345 widget_set_resize_handler(editor.widget, resize_handler);
346 widget_set_button_handler(editor.widget, button_handler);
348 window_schedule_resize(editor.window, 500, 400);
350 display_run(editor.display);
352 text_entry_destroy(editor.entry);
353 text_entry_destroy(editor.editor);