/[svn]/gigedit/trunk/src/gigedit/regionchooser.cpp
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Contents of /gigedit/trunk/src/gigedit/regionchooser.cpp

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Revision 1261 - (show annotations) (download)
Thu Jul 5 17:12:20 2007 UTC (13 years ago) by persson
File size: 17138 byte(s)
* a changed file is now marked with an asterisk in the window title
* added close confirmation dialog, shown if file is changed
* "save" means "save as" for new files
* enabled acceleration keys
* add .gig to filename in "save as" if it's not already there
* filename character encodings other than utf-8 supported

1 /*
2 * Copyright (C) 2006, 2007 Andreas Persson
3 *
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License as
6 * published by the Free Software Foundation; either version 2, or (at
7 * your option) any later version.
8 *
9 * This program is distributed in the hope that it will be useful, but
10 * WITHOUT ANY WARRANTY; without even the implied warranty of
11 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
12 * General Public License for more details.
13 *
14 * You should have received a copy of the GNU General Public License
15 * along with program; see the file COPYING. If not, write to the Free
16 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
17 * 02110-1301 USA.
18 */
19
20 #include "regionchooser.h"
21 #include <gdkmm/cursor.h>
22 #include <gtkmm/stock.h>
23 #include <gtkmm/spinbutton.h>
24 #include <gtkmm/dialog.h>
25 #include <libintl.h>
26 #include <math.h>
27
28 #define _(String) gettext(String)
29
30 RegionChooser::RegionChooser()
31 {
32 Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap();
33
34 black = Gdk::Color("black");
35 white = Gdk::Color("white");
36 red = Gdk::Color("#8070ff");
37 blue = Gdk::Color("#c098ff");
38 green = Gdk::Color("#a088ff");
39 grey1 = Gdk::Color("red");
40
41 colormap->alloc_color(black);
42 colormap->alloc_color(white);
43 colormap->alloc_color(red);
44 colormap->alloc_color(blue);
45 colormap->alloc_color(green);
46 colormap->alloc_color(grey1);
47 instrument = 0;
48 region = 0;
49 resize.active = false;
50 cursor_is_resize = false;
51 h1 = 20;
52 width = 800;
53
54 actionGroup = Gtk::ActionGroup::create();
55 actionGroup->add(Gtk::Action::create("Properties",
56 Gtk::Stock::PROPERTIES),
57 sigc::mem_fun(*this,
58 &RegionChooser::show_region_properties));
59 actionGroup->add(Gtk::Action::create("Remove", Gtk::Stock::REMOVE),
60 sigc::mem_fun(*this, &RegionChooser::delete_region));
61 actionGroup->add(Gtk::Action::create("Add", Gtk::Stock::ADD),
62 sigc::mem_fun(*this, &RegionChooser::add_region));
63 actionGroup->add(Gtk::Action::create("Dimensions", _("Dimensions...")),
64 sigc::mem_fun(*this, &RegionChooser::manage_dimensions));
65
66 uiManager = Gtk::UIManager::create();
67 uiManager->insert_action_group(actionGroup);
68 Glib::ustring ui_info =
69 "<ui>"
70 " <popup name='PopupMenuInsideRegion'>"
71 " <menuitem action='Properties'/>"
72 " <menuitem action='Dimensions'/>"
73 " <menuitem action='Remove'/>"
74 " </popup>"
75 " <popup name='PopupMenuOutsideRegion'>"
76 " <menuitem action='Add'/>"
77 " </popup>"
78 "</ui>";
79 uiManager->add_ui_from_string(ui_info);
80
81 popup_menu_inside_region = dynamic_cast<Gtk::Menu*>(
82 uiManager->get_widget("/PopupMenuInsideRegion"));
83 popup_menu_outside_region = dynamic_cast<Gtk::Menu*>(
84 uiManager->get_widget("/PopupMenuOutsideRegion"));
85
86 add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK |
87 Gdk::POINTER_MOTION_MASK | Gdk::POINTER_MOTION_HINT_MASK);
88
89 dimensionManager.articulation_changed_signal.connect(
90 sigc::mem_fun(*this, &RegionChooser::on_dimension_manager_changed)
91 );
92 }
93
94 RegionChooser::~RegionChooser()
95 {
96 }
97
98 void RegionChooser::on_realize()
99 {
100 // We need to call the base on_realize()
101 Gtk::DrawingArea::on_realize();
102
103 // Now we can allocate any additional resources we need
104 Glib::RefPtr<Gdk::Window> window = get_window();
105 gc = Gdk::GC::create(window);
106 window->clear();
107 }
108
109 bool RegionChooser::on_expose_event(GdkEventExpose* event)
110 {
111 Glib::RefPtr<Gdk::Window> window = get_window();
112 window->clear();
113 const int h = 40;
114 const int w = width - 1;
115 const int bh = int(h * 0.55);
116
117 Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
118 Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
119
120 window->draw_rectangle(black, false, 0, h1, w, h - 1);
121 window->draw_rectangle(white, true, 1, h1 + 1, w - 1, h - 2);
122 for (int i = 0 ; i < 128 ; i++) {
123 int note = (i + 3) % 12;
124 int x = int(w * i / 128.0 + 0.5);
125
126 if (note == 1 || note == 4 || note == 6 || note == 9 || note == 11) {
127 int x2 = int(w * (i + 0.5) / 128.0 + 0.5);
128 window->draw_line(black, x2, h1 + bh, x2, h1 + h);
129
130 int x3 = int(w * (i + 1) / 128.0 + 0.5);
131 window->draw_rectangle(black, true, x, h1 + 1, x3 - x + 1, bh);
132 } else if (note == 3 || note == 8) {
133 window->draw_line(black, x, h1 + 1, x, h1 + h);
134 }
135 }
136
137 if (instrument) {
138 int i = 0;
139 gig::Region *nextRegion;
140 int x3 = -1;
141 for (gig::Region *r = instrument->GetFirstRegion() ;
142 r ;
143 r = nextRegion) {
144
145 if (x3 < 0) x3 = int(w * (r->KeyRange.low) / 128.0 + 0.5);
146 nextRegion = instrument->GetNextRegion();
147 if (!nextRegion || r->KeyRange.high + 1 != nextRegion->KeyRange.low) {
148 int x2 = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
149 window->draw_line(black, x3, 0, x2, 0);
150 window->draw_line(black, x3, h1 - 1, x2, h1 - 1);
151 window->draw_line(black, x2, 1, x2, h1 - 2);
152 window->draw_rectangle(white, true, x3 + 1, 1, x2 - x3 - 1, h1 - 2);
153 x3 = -1;
154 }
155 i++;
156 }
157
158 for (gig::Region *r = instrument->GetFirstRegion() ;
159 r ;
160 r = instrument->GetNextRegion()) {
161 int x = int(w * (r->KeyRange.low) / 128.0 + 0.5);
162 window->draw_line(black, x, 1, x, h1 - 2);
163 }
164
165 if (region) {
166 int x1 = int(w * (region->KeyRange.low) / 128.0 + 0.5);
167 int x2 = int(w * (region->KeyRange.high + 1) / 128.0 + 0.5);
168 gc->set_foreground(red);
169 window->draw_rectangle(gc, true, x1 + 1, 1, x2 - x1 - 1, h1 - 2);
170 }
171 }
172 return true;
173 }
174
175
176 void RegionChooser::on_size_request(GtkRequisition* requisition)
177 {
178 *requisition = GtkRequisition();
179 requisition->height = 40 + 20;
180 requisition->width = 500;
181 }
182
183
184 // not used
185 void RegionChooser::draw_region(int from, int to, const Gdk::Color& color)
186 {
187 const int h = 40;
188 const int w = width;
189 const int bh = int(h * 0.55);
190
191 Glib::RefPtr<Gdk::Window> window = get_window();
192 gc->set_foreground(color);
193
194 for (int i = from ; i < to ; i++) {
195 int note = (i + 3) % 12;
196 int x = int(w * i / 128.0 + 0.5) + 1;
197 int x2 = int(w * (i + 1.5) / 128.0 + 0.5);
198 int x3 = int(w * (i + 1) / 128.0 + 0.5);
199 int x4 = int(w * (i - 0.5) / 128 + 0.5) + 1;
200 int w1 = x3 - x;
201 switch (note) {
202 case 0: case 5: case 10:
203 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
204 window->draw_rectangle(gc, true, x4, h1 + bh + 1, x2 - x4, h - bh - 2);
205 break;
206 case 2: case 7:
207 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
208 window->draw_rectangle(gc, true, x4, h1 + bh + 1, x3 - x4, h - bh - 2);
209 break;
210 case 3: case 8:
211 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
212 window->draw_rectangle(gc, true, x, h1 + bh + 1, x2 - x, h - bh - 2);
213 break;
214 default:
215 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh - 1);
216 break;
217 }
218 }
219 }
220
221 void RegionChooser::set_instrument(gig::Instrument* instrument)
222 {
223 this->instrument = instrument;
224 region = instrument ? instrument->GetFirstRegion() : 0;
225 queue_draw();
226 region_selected();
227 }
228
229 bool RegionChooser::on_button_release_event(GdkEventButton* event)
230 {
231 if (resize.active) {
232 get_window()->pointer_ungrab(event->time);
233 resize.active = false;
234
235 if (resize.mode == resize.moving_high_limit) {
236 if (resize.region->KeyRange.high != resize.pos - 1) {
237 resize.region->KeyRange.high = resize.pos - 1;
238 instrument_changed();
239 }
240 } else if (resize.mode == resize.moving_low_limit) {
241 if (resize.region->KeyRange.low != resize.pos) {
242 resize.region->KeyRange.low = resize.pos;
243 instrument_changed();
244 }
245 }
246
247 if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
248 get_window()->set_cursor();
249 cursor_is_resize = false;
250 }
251 }
252 return true;
253 }
254
255 bool RegionChooser::on_button_press_event(GdkEventButton* event)
256 {
257 if (!instrument) return true;
258
259 int k = int(event->x / (width - 1) * 128.0);
260
261 if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
262 gig::Region* r = get_region(k);
263 if (r) {
264 region = r;
265 queue_draw();
266 region_selected();
267 popup_menu_inside_region->popup(event->button, event->time);
268 } else {
269 new_region_pos = k;
270 popup_menu_outside_region->popup(event->button, event->time);
271 }
272 } else {
273 if (is_in_resize_zone(event->x, event->y)) {
274 Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
275 get_window()->pointer_grab(false,
276 Gdk::BUTTON_RELEASE_MASK |
277 Gdk::POINTER_MOTION_MASK |
278 Gdk::POINTER_MOTION_HINT_MASK,
279 double_arrow, event->time);
280 resize.active = true;
281 } else {
282 gig::Region* r = get_region(k);
283 if (r) {
284 region = r;
285 queue_draw();
286 region_selected();
287 }
288 }
289 }
290 return true;
291 }
292
293 gig::Region* RegionChooser::get_region(int key)
294 {
295 for (gig::Region *r = instrument->GetFirstRegion() ; r ;
296 r = instrument->GetNextRegion()) {
297 if (key < r->KeyRange.low) return 0;
298 if (key <= r->KeyRange.high) return r;
299 }
300 return 0;
301 }
302
303 bool RegionChooser::on_motion_notify_event(GdkEventMotion* event)
304 {
305 const int w = width - 1;
306 Glib::RefPtr<Gdk::Window> window = get_window();
307 int x, y;
308 Gdk::ModifierType state = Gdk::ModifierType(0);
309 window->get_pointer(x, y, state);
310 if (resize.active) {
311 int k = int(double(x) / w * 128.0 + 0.5);
312
313 if (k < resize.min) k = resize.min;
314 else if (k > resize.max) k = resize.max;
315
316 if (k != resize.pos) {
317 if (resize.mode == resize.undecided) {
318 if (k < resize.pos) {
319 // edit high limit of prev_region
320 resize.max = resize.region->KeyRange.low;
321 resize.region = resize.prev_region;
322 resize.mode = resize.moving_high_limit;
323 } else {
324 // edit low limit of region
325 resize.min = resize.prev_region->KeyRange.high + 1;
326 resize.mode = resize.moving_low_limit;
327 }
328 }
329 Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
330 Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
331 if (region == resize.region) {
332 gc->set_foreground(red);
333 white = gc;
334 }
335 Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL);
336 int prevx = int(w * resize.pos / 128.0 + 0.5);
337 x = int(w * k / 128.0 + 0.5);
338
339 if (resize.mode == resize.moving_high_limit) {
340 if (k > resize.pos) {
341 window->draw_rectangle(white, true, prevx, 1, x - prevx, h1 - 2);
342 window->draw_line(black, prevx, 0, x, 0);
343 window->draw_line(black, prevx, h1 - 1, x, h1 - 1);
344 } else {
345 int xx = ((resize.pos == resize.max && resize.max != 128) ? 1 : 0);
346 window->draw_rectangle(bg, true, x + 1, 0, prevx - x - xx, h1);
347 }
348 } else {
349 if (k < resize.pos) {
350 window->draw_rectangle(white, true, x + 1, 1, prevx - x, h1 - 2);
351 window->draw_line(black, x, 0, prevx, 0);
352 window->draw_line(black, x, h1 - 1, prevx, h1 - 1);
353 } else {
354 int xx = ((resize.pos == resize.min && resize.min != 0) ? 1 : 0);
355 window->draw_rectangle(bg, true, prevx + xx, 0, x - prevx - xx, h1);
356 }
357 }
358 window->draw_line(black, x, 1, x, h1 - 2);
359 resize.pos = k;
360 }
361 } else {
362 if (is_in_resize_zone(x, y)) {
363 if (!cursor_is_resize) {
364 Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
365 window->set_cursor(double_arrow);
366 cursor_is_resize = true;
367 }
368 } else if (cursor_is_resize) {
369 window->set_cursor();
370 cursor_is_resize = false;
371 }
372 }
373
374 return true;
375 }
376
377 bool RegionChooser::is_in_resize_zone(double x, double y) {
378 const int w = width - 1;
379
380 if (instrument && y >= 0 && y <= h1) {
381 gig::Region* prev_region = 0;
382 gig::Region* next_region;
383 for (gig::Region* r = instrument->GetFirstRegion() ; r ; r = next_region) {
384 next_region = instrument->GetNextRegion();
385
386 int lo = int(w * (r->KeyRange.low) / 128.0 + 0.5);
387 if (x <= lo - 2) break;
388 if (x < lo + 2) {
389 resize.region = r;
390 resize.pos = r->KeyRange.low;
391 resize.max = r->KeyRange.high;
392
393 if (prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low) {
394 // we don't know yet if it's the high limit of
395 // prev_region or the low limit of r that's going
396 // to be edited
397 resize.mode = resize.undecided;
398 resize.min = prev_region->KeyRange.low + 1;
399 resize.prev_region = prev_region;
400 return true;
401 }
402
403 // edit low limit
404 resize.mode = resize.moving_low_limit;
405 resize.min = prev_region ? prev_region->KeyRange.high + 1 : 0;
406 return true;
407 }
408 if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low) {
409 int hi = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
410 if (x <= hi - 2) break;
411 if (x < hi + 2) {
412 // edit high limit
413 resize.region = r;
414 resize.pos = r->KeyRange.high + 1;
415 resize.mode = resize.moving_high_limit;
416 resize.min = r->KeyRange.low + 1;
417 resize.max = next_region ? next_region->KeyRange.low : 128;
418 return true;
419 }
420 }
421 prev_region = r;
422 }
423 }
424 return false;
425 }
426
427 sigc::signal<void> RegionChooser::signal_region_selected()
428 {
429 return region_selected;
430 }
431
432 sigc::signal<void> RegionChooser::signal_instrument_changed()
433 {
434 return instrument_changed;
435 }
436
437 void RegionChooser::show_region_properties()
438 {
439 if (!region) return;
440 Gtk::Dialog dialog("Region Properties", true /*modal*/);
441 // add "Keygroup" checkbox
442 Gtk::CheckButton checkBoxKeygroup("Member of a Keygroup (Exclusive Group)");
443 checkBoxKeygroup.set_active(region->KeyGroup);
444 dialog.get_vbox()->pack_start(checkBoxKeygroup);
445 checkBoxKeygroup.show();
446 // add "Keygroup" spinbox
447 Gtk::Adjustment adjustment(1, 1, pow(2,32));
448 Gtk::SpinButton spinBox(adjustment);
449 if (region->KeyGroup) spinBox.set_value(region->KeyGroup);
450 dialog.get_vbox()->pack_start(spinBox);
451 spinBox.show();
452 // add OK and CANCEL buttons to the dialog
453 dialog.add_button(Gtk::Stock::OK, 0);
454 dialog.add_button(Gtk::Stock::CANCEL, 1);
455 dialog.show_all_children();
456 if (!dialog.run()) { // OK selected ...
457 region->KeyGroup =
458 (checkBoxKeygroup.get_active()) ? spinBox.get_value_as_int() : 0;
459 }
460 }
461
462 void RegionChooser::add_region()
463 {
464 gig::Region* r;
465 for (r = instrument->GetFirstRegion() ; r ; r = instrument->GetNextRegion()) {
466 if (r->KeyRange.low > new_region_pos) break;
467 }
468
469 region = instrument->AddRegion();
470 region->KeyRange.low = region->KeyRange.high = new_region_pos;
471
472 instrument->MoveRegion(region, r);
473 queue_draw();
474 region_selected();
475 instrument_changed();
476 }
477
478 void RegionChooser::delete_region()
479 {
480 instrument->DeleteRegion(region);
481 region = 0;
482 queue_draw();
483 region_selected();
484 instrument_changed();
485 }
486
487 void RegionChooser::manage_dimensions()
488 {
489 gig::Region* region = get_region();
490 if (!region) return;
491 dimensionManager.show(region);
492 }
493
494 void RegionChooser::on_dimension_manager_changed() {
495 region_selected();
496 instrument_changed();
497 }

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