4 * Copyright (C) 2008 Adam Williams <broadcast at earthling dot net>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
27 #include "mwindow.inc"
28 #include "videodevice.inc"
30 // Output for all X11 video
33 class CanvasFullScreen;
37 class CanvasFullScreenPopup;
38 class CanvasToggleControls;
40 // The EDL arguments can be set to 0 if the canvas_w and canvas_h are used
44 Canvas(MWindow *mwindow,
45 BC_WindowBase *subwindow,
56 // Get dimensions given a zoom
57 void calculate_sizes(float aspect_ratio,
63 // Lock access to the canvas pointer.
64 // Must be called before get_canvas or locking the canvas.
65 void lock_canvas(const char *location);
69 void create_objects(EDL *edl);
70 void set_cursor(int cursor);
71 // Start video playback
75 // Start single frame processing. Causes the status indicator to update
79 void start_fullscreen();
80 void stop_fullscreen();
82 // Don't call from inside the canvas
87 // Processing or video playback changed.
88 virtual void status_event() {};
91 virtual void reset_camera() {};
92 virtual void reset_projector() {};
93 virtual void zoom_resize_window(float percentage) {};
94 virtual void zoom_auto() {};
95 virtual int cursor_leave_event() { return 0; };
96 virtual int cursor_enter_event() { return 0; };
97 virtual int button_release_event() { return 0; };
98 virtual int button_press_event();
99 virtual int cursor_motion_event() { return 0; };
100 virtual void draw_overlays() { };
101 virtual void toggle_controls() { } ;
102 virtual int get_cwindow_controls() { return 0; };
103 virtual int get_fullscreen() { return 0; }
104 virtual void set_fullscreen(int value) { };
106 int cursor_leave_event_base(BC_WindowBase *caller);
107 int cursor_enter_event_base(BC_WindowBase *caller);
108 int button_press_event_base(BC_WindowBase *caller);
109 int keypress_event(BC_WindowBase *caller);
110 // Use menu different options for different windows
114 void use_auxwindow(BC_WindowBase *aux);
116 // Provide canvas dimensions since a BC_Bitmap containing obsolete dimensions
117 // is often the output being transferred to.
118 // This gets the input coordinates on the device output_frame
119 // and the corresponding output coordinates on the canvas.
120 // Must be floating point to support OpenGL.
121 void get_transfers(EDL *edl,
130 // passing -1 causes automatic size detection
133 void reposition_window(EDL *edl, int x, int y, int w, int h);
134 virtual void reset_translation() {};
135 virtual void close_source() {};
136 // Updates the stores
137 virtual void update_zoom(int x, int y, float zoom) {};
138 void check_boundaries(EDL *edl, int &x, int &y, float &zoom);
139 void update_scrollbars(int flush);
140 // Get scrollbar positions relative to output.
141 // No correction is done if output is smaller than canvas
142 virtual int get_xscroll() { return 0; };
143 virtual int get_yscroll() { return 0; };
144 virtual float get_zoom() { return 0; };
145 // Updates the refresh_frame
146 void update_refresh(VideoDevice *device, VFrame *output_frame);
147 // Redraws the refresh_frame
148 virtual void draw_refresh(int flush = 1) {};
149 virtual void clear(int flush=1);
151 // Get top left offset of canvas relative to output.
152 // Normally negative. Can be positive if output is smaller than canvas.
153 float get_x_offset(EDL *edl,
158 float get_y_offset(EDL *edl,
163 void get_zooms(EDL *edl,
171 // Convert coord from output to canvas position, including
172 // x and y scroll offsets
173 void output_to_canvas(EDL *edl, int single_channel, float &x, float &y);
174 // Convert coord from canvas to output position
175 void canvas_to_output(EDL *edl, int single_channel, float &x, float &y);
177 // Get dimensions of frame being sent to canvas
178 virtual int get_output_w(EDL *edl);
179 virtual int get_output_h(EDL *edl);
180 // Get if scrollbars exist
181 int scrollbars_exist();
182 // Get cursor locations relative to canvas and not offset by scrollbars
185 int get_buttonpress();
186 // Gets whatever video surface is enabled
187 BC_WindowBase* get_canvas();
189 // The owner of the canvas
190 BC_WindowBase *subwindow;
191 // Video surface if a subwindow
192 CanvasOutput *canvas_subwindow;
193 // Video surface if fullscreen
194 CanvasFullScreen *canvas_fullscreen;
195 CanvasXScroll *xscroll;
196 CanvasYScroll *yscroll;
197 CanvasPopup *canvas_menu;
198 CanvasFullScreenPopup *fullscreen_menu;
201 BC_WindowBase *canvas_auxwindow;
202 // Used in record monitor
203 int output_w, output_h;
204 // Last frame played is stored here in driver format for
206 VFrame *refresh_frame;
207 // Results from last get_scrollbars
212 // For cases where video is not enabled on the canvas but processing is
213 // occurring for a single frame, this causes the status to update.
215 // Cursor is inside video surface
227 void get_scrollbars(EDL *edl,
236 class CanvasOutput : public BC_SubWindow
239 CanvasOutput(Canvas *canvas,
246 int cursor_leave_event();
247 int cursor_enter_event();
248 int button_press_event();
249 int button_release_event();
250 int cursor_motion_event();
251 int keypress_event();
259 class CanvasFullScreen : public BC_FullScreen
262 CanvasFullScreen(Canvas *canvas,
273 class CanvasXScroll : public BC_ScrollBar
276 CanvasXScroll(EDL *edl,
291 class CanvasYScroll : public BC_ScrollBar
294 CanvasYScroll(EDL *edl,
310 class CanvasFullScreenPopup : public BC_PopupMenu
313 CanvasFullScreenPopup(Canvas *canvas);
315 void create_objects();
321 class CanvasSubWindowItem : public BC_MenuItem
324 CanvasSubWindowItem(Canvas *canvas);
329 class CanvasPopup : public BC_PopupMenu
332 CanvasPopup(Canvas *canvas);
335 void create_objects();
341 CanvasToggleControls *toggle_controls;
344 class CanvasPopupSize : public BC_MenuItem
347 CanvasPopupSize(Canvas *canvas, char *text, float percentage);
354 class CanvasPopupAuto : public BC_MenuItem
357 CanvasPopupAuto(Canvas *canvas);
362 class CanvasPopupResetCamera : public BC_MenuItem
365 CanvasPopupResetCamera(Canvas *canvas);
370 class CanvasPopupResetProjector : public BC_MenuItem
373 CanvasPopupResetProjector(Canvas *canvas);
378 class CanvasToggleControls : public BC_MenuItem
381 CanvasToggleControls(Canvas *canvas);
383 static char* calculate_text(int cwindow_controls);
387 class CanvasFullScreenItem : public BC_MenuItem
390 CanvasFullScreenItem(Canvas *canvas);
395 class CanvasPopupResetTranslation : public BC_MenuItem
398 CanvasPopupResetTranslation(Canvas *canvas);
404 class CanvasPopupRemoveSource : public BC_MenuItem
407 CanvasPopupRemoveSource(Canvas *canvas);