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comparison mupdf-source/platform/gl/gl-app.h @ 2:b50eed0cc0ef upstream

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ADD: MuPDF v1.26.7: the MuPDF source as downloaded by a default build of PyMuPDF 1.26.4. The directory name has changed: no version number in the expanded directory now.
author Franz Glasner <fzglas.hg@dom66.de>
date Mon, 15 Sep 2025 11:43:07 +0200
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1:1d09e1dec1d9 2:b50eed0cc0ef
1 // Copyright (C) 2004-2022 Artifex Software, Inc.
2 //
3 // This file is part of MuPDF.
4 //
5 // MuPDF is free software: you can redistribute it and/or modify it under the
6 // terms of the GNU Affero General Public License as published by the Free
7 // Software Foundation, either version 3 of the License, or (at your option)
8 // any later version.
9 //
10 // MuPDF is distributed in the hope that it will be useful, but WITHOUT ANY
11 // WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
12 // FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
13 // details.
14 //
15 // You should have received a copy of the GNU Affero General Public License
16 // along with MuPDF. If not, see <https://www.gnu.org/licenses/agpl-3.0.en.html>
17 //
18 // Alternative licensing terms are available from the licensor.
19 // For commercial licensing, see <https://www.artifex.com/> or contact
20 // Artifex Software, Inc., 39 Mesa Street, Suite 108A, San Francisco,
21 // CA 94129, USA, for further information.
22
23 #ifndef MUPDF_GL_APP_H
24 #define MUPDF_GL_APP_H
25
26 #ifdef _WIN32
27 #include <windows.h>
28 void win_install(void);
29 #endif
30
31 #include "mupdf/fitz.h"
32 #include "mupdf/ucdn.h"
33 #include "mupdf/pdf.h" /* for pdf specifics and forms */
34
35 #ifndef __APPLE__
36 #include <GL/freeglut.h>
37 #else
38 #include <GLUT/glut.h>
39 #endif
40
41 /* UI */
42
43 enum
44 {
45 /* regular control characters */
46 KEY_ESCAPE = 27,
47 KEY_ENTER = '\r',
48 KEY_TAB = '\t',
49 KEY_BACKSPACE = '\b',
50 KEY_DELETE = 127,
51
52 KEY_CTL_A = 'A' - 64,
53 KEY_CTL_B, KEY_CTL_C, KEY_CTL_D, KEY_CTL_E, KEY_CTL_F,
54 KEY_CTL_G, KEY_CTL_H, KEY_CTL_I, KEY_CTL_J, KEY_CTL_K, KEY_CTL_L,
55 KEY_CTL_M, KEY_CTL_N, KEY_CTL_O, KEY_CTL_P, KEY_CTL_Q, KEY_CTL_R,
56 KEY_CTL_S, KEY_CTL_T, KEY_CTL_U, KEY_CTL_V, KEY_CTL_W, KEY_CTL_X,
57 KEY_CTL_Y, KEY_CTL_Z,
58
59 /* reuse control characters > 127 for special keys */
60 KEY_INSERT = 128,
61 KEY_PAGE_UP,
62 KEY_PAGE_DOWN,
63 KEY_HOME,
64 KEY_END,
65 KEY_LEFT,
66 KEY_UP,
67 KEY_RIGHT,
68 KEY_DOWN,
69 KEY_F1,
70 KEY_F2,
71 KEY_F3,
72 KEY_F4,
73 KEY_F5,
74 KEY_F6,
75 KEY_F7,
76 KEY_F8,
77 KEY_F9,
78 KEY_F10,
79 KEY_F11,
80 KEY_F12,
81 };
82
83 enum side { ALL, T, R, B, L };
84 enum fill { NONE = 0, X = 1, Y = 2, BOTH = 3 };
85 enum anchor { CENTER, N, NE, E, SE, S, SW, W, NW };
86
87 struct layout
88 {
89 enum side side;
90 enum fill fill;
91 enum anchor anchor;
92 int padx, pady;
93 };
94
95 struct ui
96 {
97 int window_w, window_h;
98
99 int x, y;
100 int down, down_x, down_y;
101 int middle, middle_x, middle_y;
102 int right, right_x, right_y;
103
104 int scroll_x, scroll_y;
105 int key, mod, plain;
106
107 int grab_down, grab_middle, grab_right;
108 const void *hot, *active, *focus;
109 int last_cursor, cursor;
110
111 float scale;
112 int fontsize;
113 int baseline;
114 int lineheight;
115 int gridsize;
116 int padsize;
117
118 struct layout *layout;
119 fz_irect *cavity;
120 struct layout layout_stack[32];
121 fz_irect cavity_stack[32];
122
123 int overlay;
124 GLuint overlay_list;
125
126 void (*dialog)(void);
127
128 pdf_annot *selected_annot;
129 };
130
131 extern struct ui ui;
132
133 void ui_init_dpi(float override_ui_scale);
134 void ui_init(int w, int h, const char *title);
135 void ui_quit(void);
136 void ui_invalidate(void);
137 void ui_finish(void);
138
139 void ui_set_clipboard(const char *buf);
140 const char *ui_get_clipboard(void);
141
142 void ui_init_fonts(void);
143 void ui_finish_fonts(void);
144
145 void ui_draw_string(float x, float y, const char *str);
146 void ui_draw_string_part(float x, float y, const char *s, const char *e);
147 void ui_draw_character(float x, float y, int c);
148 float ui_measure_character(int ucs);
149 float ui_measure_string(const char *str);
150 float ui_measure_string_part(const char *s, const char *e);
151
152 struct line { char *a, *b; };
153
154 int ui_break_lines(char *a, struct line *lines, int nlines, int width, int *maxwidth);
155 void ui_draw_lines(float x, float y, struct line *lines, int n);
156
157 struct texture
158 {
159 GLuint id;
160 int x, y, w, h;
161 float s, t;
162 };
163
164 void ui_texture_from_pixmap(struct texture *tex, fz_pixmap *pix);
165 void ui_draw_image(struct texture *tex, float x, float y);
166
167 enum
168 {
169 UI_INPUT_NONE = 0,
170 UI_INPUT_EDIT = 1,
171 UI_INPUT_ACCEPT = 2,
172 };
173
174 #define UI_INPUT_SIZE (16*1024)
175
176 struct input
177 {
178 char text[UI_INPUT_SIZE];
179 char *end, *p, *q;
180 int scroll;
181 pdf_annot *widget;
182 };
183
184 #define UI_READLINE_SIZE 20
185
186 struct readline
187 {
188 struct input input;
189 char buffer[UI_READLINE_SIZE][UI_INPUT_SIZE];
190 char *history[UI_READLINE_SIZE];
191 int used;
192 int current;
193 };
194
195 struct list
196 {
197 fz_irect area;
198 int scroll_y;
199 int item_y;
200 int is_tree;
201 };
202
203 void ui_begin(void);
204 void ui_end(void);
205
206 int ui_mouse_inside(fz_irect area);
207
208 void ui_layout(enum side side, enum fill fill, enum anchor anchor, int padx, int pady);
209 fz_irect ui_pack_layout(int slave_w, int slave_h, enum side side, enum fill fill, enum anchor anchor, int padx, int pady);
210 fz_irect ui_pack(int slave_w, int slave_h);
211 int ui_available_width(void);
212 int ui_available_height(void);
213 void ui_pack_push(fz_irect cavity);
214 void ui_pack_pop(void);
215
216 void ui_dialog_begin(int w, int h);
217 void ui_dialog_end(void);
218 void ui_panel_begin(int w, int h, int padx, int pady, int opaque);
219 void ui_panel_end(void);
220
221 void ui_spacer(void);
222 void ui_splitter(int *start, int *x, int min, int max, enum side side);
223 void ui_label(const char *fmt, ...);
224 void ui_label_with_scrollbar(char *text, int width, int height, int *scroll, int *sticky);
225
226 int ui_button(const char *label);
227 /* flags: bit 0 -> disabled. all other bits 0 for now. */
228 int ui_button_aux(const char *label, int flags);
229 int ui_checkbox(const char *label, int *value);
230 int ui_checkbox_aux(const char *label, int *value, int flags);
231 int ui_slider(int *value, int min, int max, int width);
232 int ui_select(const void *id, const char *current, const char *options[], int n);
233 int ui_select_aux(const void *id, const char *current, const char *options[], int n, int flags);
234
235 void ui_input_init(struct input *input, const char *text);
236 int ui_input(struct input *input, int width, int height);
237 void ui_scrollbar(int x0, int y0, int x1, int y1, int *value, int page_size, int max, int *sticky);
238
239 void ui_readline_init(struct readline *readline, const char *text);
240 const char *ui_readline(struct readline *readline, int width);
241
242 void ui_tree_begin(struct list *list, int count, int req_w, int req_h, int is_tree);
243 int ui_tree_item(struct list *list, const void *id, const char *label, int selected, int depth, int is_branch, int *is_open);
244 void ui_tree_end(struct list *list);
245
246 void ui_list_begin(struct list *list, int count, int req_w, int req_h);
247 int ui_list_item(struct list *list, const void *id, const char *label, int selected);
248 void ui_list_end(struct list *list);
249
250 int ui_popup(const void *id, const char *label, int is_button, int count);
251 int ui_popup_item(const char *title);
252 int ui_popup_aux(const void *id, const char *label, int is_button, int count, int flags);
253 int ui_popup_item_aux(const char *title, int flags);
254 void ui_popup_end(void);
255
256 void ui_init_open_file(const char *dir, int (*filter)(const char *fn));
257 int ui_open_file(char *filename, const char *label);
258 void ui_init_save_file(const char *path, int (*filter)(const char *fn));
259 int ui_save_file(char *filename, void (*extra_panel)(void), const char *label);
260
261 void ui_show_warning_dialog(const char *fmt, ...);
262 void ui_show_error_dialog(const char *fmt, ...);
263
264 void ui_select_annot(pdf_annot *annot);
265
266 /* Theming */
267
268 enum
269 {
270 UI_COLOR_PANEL = 0xc0c0c0,
271 UI_COLOR_BUTTON = 0xc0c0c0,
272 UI_COLOR_SCROLLBAR = 0xdfdfdf,
273 UI_COLOR_TEXT_BG = 0xffffff,
274 UI_COLOR_TEXT_FG = 0x000000,
275 UI_COLOR_TEXT_GRAY = 0x808080,
276 UI_COLOR_TEXT_SEL_BG = 0x000080,
277 UI_COLOR_TEXT_SEL_FG = 0xffffff,
278 UI_COLOR_BEVEL_1 = 0x000000,
279 UI_COLOR_BEVEL_2 = 0x808080,
280 UI_COLOR_BEVEL_3 = 0xdfdfdf,
281 UI_COLOR_BEVEL_4 = 0xffffff,
282 };
283
284 void glColorHex(unsigned int hex);
285 void ui_draw_bevel(fz_irect area, int depressed);
286 void ui_draw_ibevel(fz_irect area, int depressed);
287 void ui_draw_bevel_rect(fz_irect area, unsigned int fill, int depressed);
288 void ui_draw_ibevel_rect(fz_irect area, unsigned int fill, int depressed);
289
290 /* App */
291
292 extern fz_context *ctx;
293 extern fz_colorspace *profile;
294 extern pdf_document *pdf;
295 extern pdf_page *page;
296 extern fz_stext_page *page_text;
297 extern fz_matrix draw_page_ctm, view_page_ctm, view_page_inv_ctm;
298 extern fz_rect page_bounds, draw_page_bounds, view_page_bounds;
299 extern fz_irect view_page_area;
300 extern char filename[];
301 extern int showform;
302 extern int showannotate;
303 extern int reloadrequested;
304 extern char *search_needle;
305 extern int search_hit_count;
306 extern fz_quad search_hit_quads[];
307 extern int page_contents_changed;
308 extern int page_annots_changed;
309
310 int search_has_results(void);
311 enum {
312 ANNOTATE_MODE_NONE = 0,
313 ANNOTATE_MODE_NORMAL = 1,
314 ANNOTATE_MODE_REDACT = 2
315 };
316 void toggle_annotate(int mode);
317 void run_main_loop(void);
318 void do_annotate_panel(void);
319 void do_annotate_canvas(fz_irect canvas_area);
320 void do_redact_panel(void);
321 void do_widget_canvas(fz_irect canvas_area);
322 void load_page(void);
323 void update_title(void);
324 void reload_document(void);
325 void reload(void);
326 void do_save_pdf_file(void);
327 void do_save_signed_pdf_file(void);
328 int do_sign(void);
329 void trace_action(const char *fmt, ...);
330 void trace_page_update(void);
331 void trace_save_snapshot(void);
332 const char *format_date(int64_t secs);
333
334 #endif