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

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Revision 1831 - (show annotations) (download)
Tue Feb 3 19:38:19 2009 UTC (11 years, 5 months ago) by persson
File size: 31203 byte(s)
* made all visible strings translatable

1 /*
2 * Copyright (C) 2006-2009 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 <algorithm>
22 #include <gdkmm/cursor.h>
23 #include <gtkmm/stock.h>
24 #include <gtkmm/spinbutton.h>
25 #include <gtkmm/dialog.h>
26 #include <math.h>
27 #include <sstream>
28
29 #include "global.h"
30
31 #define REGION_BLOCK_HEIGHT 20
32 #define KEYBOARD_HEIGHT 40
33
34 void SortedRegions::update(gig::Instrument* instrument) {
35 // Usually, the regions in a gig file are ordered after their key
36 // range, but there are files where they are not. The
37 // RegionChooser code needs a sorted list of regions.
38 regions.clear();
39 if (instrument) {
40 for (gig::Region *r = instrument->GetFirstRegion() ;
41 r ;
42 r = instrument->GetNextRegion()) {
43 regions.push_back(r);
44 }
45 sort(regions.begin(), regions.end(), *this);
46 }
47 }
48
49 gig::Region* SortedRegions::first() {
50 region_iterator = regions.begin();
51 return region_iterator == regions.end() ? 0 : *region_iterator;
52 }
53
54 gig::Region* SortedRegions::next() {
55 region_iterator++;
56 return region_iterator == regions.end() ? 0 : *region_iterator;
57 }
58
59
60
61 RegionChooser::RegionChooser() :
62 m_VirtKeybModeChoice(_("Virtual Keyboard Mode")),
63 currentActiveKey(-1)
64 {
65 Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap();
66
67 red = Gdk::Color("#8070ff");
68 grey1 = Gdk::Color("#b0b0b0");
69 activeKeyColor = Gdk::Color("#ff0000");
70 white = Gdk::Color("#ffffff");
71 black = Gdk::Color("#000000");
72
73 colormap->alloc_color(red);
74 colormap->alloc_color(grey1);
75 colormap->alloc_color(activeKeyColor);
76 colormap->alloc_color(white);
77 colormap->alloc_color(black);
78 instrument = 0;
79 region = 0;
80 resize.active = false;
81 move.active = false;
82 cursor_is_resize = false;
83 h1 = REGION_BLOCK_HEIGHT;
84
85 // properties of the virtual keyboard
86 {
87 const char* choices[] = { _("normal"), _("chord"), NULL };
88 static const virt_keyboard_mode_t values[] = {
89 VIRT_KEYBOARD_MODE_NORMAL,
90 VIRT_KEYBOARD_MODE_CHORD
91 };
92 m_VirtKeybModeChoice.set_choices(choices, values);
93 m_VirtKeybModeChoice.set_value(VIRT_KEYBOARD_MODE_NORMAL);
94 }
95 m_VirtKeybVelocityLabelDescr.set_text(_("Note-On Velocity:"));
96 m_VirtKeybVelocityLabel.set_text("-");
97 m_VirtKeybOffVelocityLabelDescr.set_text(_("Note-Off Velocity:"));
98 m_VirtKeybOffVelocityLabel.set_text("-");
99 m_VirtKeybPropsBox.pack_start(m_VirtKeybModeChoice.label, Gtk::PACK_SHRINK);
100 m_VirtKeybPropsBox.pack_start(m_VirtKeybModeChoice.widget, Gtk::PACK_SHRINK);
101 m_VirtKeybPropsBox.pack_start(m_VirtKeybVelocityLabelDescr, Gtk::PACK_SHRINK);
102 m_VirtKeybPropsBox.pack_start(m_VirtKeybVelocityLabel, Gtk::PACK_SHRINK);
103 m_VirtKeybPropsBox.pack_start(m_VirtKeybOffVelocityLabelDescr, Gtk::PACK_SHRINK);
104 m_VirtKeybPropsBox.pack_start(m_VirtKeybOffVelocityLabel, Gtk::PACK_SHRINK);
105 m_VirtKeybPropsBox.set_spacing(10);
106 m_VirtKeybPropsBox.show();
107
108 actionGroup = Gtk::ActionGroup::create();
109 actionGroup->add(Gtk::Action::create("Properties",
110 Gtk::Stock::PROPERTIES),
111 sigc::mem_fun(*this,
112 &RegionChooser::show_region_properties));
113 actionGroup->add(Gtk::Action::create("Remove", Gtk::Stock::REMOVE),
114 sigc::mem_fun(*this, &RegionChooser::delete_region));
115 actionGroup->add(Gtk::Action::create("Add", Gtk::Stock::ADD),
116 sigc::mem_fun(*this, &RegionChooser::add_region));
117 actionGroup->add(Gtk::Action::create("Dimensions", _("Dimensions...")),
118 sigc::mem_fun(*this, &RegionChooser::manage_dimensions));
119
120 uiManager = Gtk::UIManager::create();
121 uiManager->insert_action_group(actionGroup);
122 Glib::ustring ui_info =
123 "<ui>"
124 " <popup name='PopupMenuInsideRegion'>"
125 " <menuitem action='Properties'/>"
126 " <menuitem action='Dimensions'/>"
127 " <menuitem action='Remove'/>"
128 " </popup>"
129 " <popup name='PopupMenuOutsideRegion'>"
130 " <menuitem action='Add'/>"
131 " </popup>"
132 "</ui>";
133 uiManager->add_ui_from_string(ui_info);
134
135 popup_menu_inside_region = dynamic_cast<Gtk::Menu*>(
136 uiManager->get_widget("/PopupMenuInsideRegion"));
137 popup_menu_outside_region = dynamic_cast<Gtk::Menu*>(
138 uiManager->get_widget("/PopupMenuOutsideRegion"));
139
140 add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK |
141 Gdk::POINTER_MOTION_MASK | Gdk::POINTER_MOTION_HINT_MASK);
142
143 dimensionManager.region_to_be_changed_signal.connect(
144 region_to_be_changed_signal.make_slot()
145 );
146 dimensionManager.region_changed_signal.connect(
147 region_changed_signal.make_slot()
148 );
149 dimensionManager.region_changed_signal.connect(
150 sigc::hide(
151 sigc::mem_fun(*this, &RegionChooser::on_dimension_manager_changed)
152 )
153 );
154 keyboard_key_hit_signal.connect(
155 sigc::mem_fun(*this, &RegionChooser::on_note_on_event)
156 );
157 keyboard_key_released_signal.connect(
158 sigc::mem_fun(*this, &RegionChooser::on_note_off_event)
159 );
160 }
161
162 RegionChooser::~RegionChooser()
163 {
164 }
165
166 template<class T> inline std::string ToString(T o) {
167 std::stringstream ss;
168 ss << o;
169 return ss.str();
170 }
171
172 void RegionChooser::on_note_on_event(int key, int velocity) {
173 draw_region(key, key+1, activeKeyColor);
174 m_VirtKeybVelocityLabel.set_text(ToString(velocity));
175 }
176
177 void RegionChooser::on_note_off_event(int key, int velocity) {
178 if (is_black_key(key))
179 draw_region(key, key+1, black);
180 else
181 draw_region(key, key+1, white);
182 m_VirtKeybOffVelocityLabel.set_text(ToString(velocity));
183 }
184
185 void RegionChooser::on_realize()
186 {
187 // We need to call the base on_realize()
188 Gtk::DrawingArea::on_realize();
189
190 // Now we can allocate any additional resources we need
191 Glib::RefPtr<Gdk::Window> window = get_window();
192 gc = Gdk::GC::create(window);
193 window->clear();
194 }
195
196 bool RegionChooser::on_expose_event(GdkEventExpose* event)
197 {
198 Glib::RefPtr<Gdk::Window> window = get_window();
199 window->clear();
200 const int h = KEYBOARD_HEIGHT;
201 const int w = get_width() - 1;
202 const int bh = int(h * 0.55);
203
204 Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
205 Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
206
207 window->draw_rectangle(black, false, 0, h1, w, h - 1);
208 gc->set_foreground(grey1);
209 int x1 = int(w * 20.5 / 128.0 + 0.5);
210 int x2 = int(w * 109.5 / 128.0 + 0.5);
211 window->draw_rectangle(gc, true, 1, h1 + 1,
212 x1 - 1, h - 2);
213 window->draw_rectangle(white, true, x1 + 1, h1 + 1, x2 - x1 - 1, h - 2);
214 window->draw_rectangle(gc, true, x2 + 1, h1 + 1,
215 w - x2 - 1, h - 2);
216 for (int i = 0 ; i < 128 ; i++) {
217 int note = (i + 3) % 12;
218 int x = int(w * i / 128.0 + 0.5);
219
220 if (note == 1 || note == 4 || note == 6 || note == 9 || note == 11) {
221 int x2 = int(w * (i + 0.5) / 128.0 + 0.5);
222 window->draw_line(black, x2, h1 + bh, x2, h1 + h);
223
224 int x3 = int(w * (i + 1) / 128.0 + 0.5);
225 window->draw_rectangle(black, true, x, h1 + 1, x3 - x + 1, bh);
226 } else if (note == 3 || note == 8) {
227 window->draw_line(black, x, h1 + 1, x, h1 + h);
228 }
229 if (note == 3) draw_digit(i);
230 }
231
232 if (instrument) {
233 int i = 0;
234 gig::Region *next_region;
235 int x3 = -1;
236 for (gig::Region *r = regions.first() ; r ; r = next_region) {
237
238 if (x3 < 0) x3 = int(w * (r->KeyRange.low) / 128.0 + 0.5);
239 next_region = regions.next();
240 if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low) {
241 int x2 = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
242 window->draw_line(black, x3, 0, x2, 0);
243 window->draw_line(black, x3, h1 - 1, x2, h1 - 1);
244 window->draw_line(black, x2, 1, x2, h1 - 2);
245 window->draw_rectangle(white, true, x3 + 1, 1, x2 - x3 - 1, h1 - 2);
246 x3 = -1;
247 }
248 i++;
249 }
250
251 for (gig::Region *r = regions.first() ; r ; r = regions.next()) {
252 int x = int(w * (r->KeyRange.low) / 128.0 + 0.5);
253 window->draw_line(black, x, 1, x, h1 - 2);
254 }
255
256 if (region) {
257 int x1 = int(w * (region->KeyRange.low) / 128.0 + 0.5);
258 int x2 = int(w * (region->KeyRange.high + 1) / 128.0 + 0.5);
259 gc->set_foreground(red);
260 window->draw_rectangle(gc, true, x1 + 1, 1, x2 - x1 - 1, h1 - 2);
261 }
262 }
263 return true;
264 }
265
266
267 void RegionChooser::on_size_request(GtkRequisition* requisition)
268 {
269 *requisition = GtkRequisition();
270 requisition->height = KEYBOARD_HEIGHT + REGION_BLOCK_HEIGHT;
271 requisition->width = 500;
272 }
273
274 bool RegionChooser::is_black_key(int key) {
275 const int note = (key + 3) % 12;
276 return note == 1 || note == 4 || note == 6 || note == 9 || note == 11;
277 }
278
279 void RegionChooser::draw_digit(int key) {
280 const int h = KEYBOARD_HEIGHT;
281 const int w = get_width() - 1;
282 Glib::RefPtr<Pango::Layout> layout = Pango::Layout::create(get_pango_context());
283 char buf[30];
284 sprintf(buf, "<span size=\"8000\">%d</span>", key / 12 - 1);
285 layout->set_markup(buf);
286 Pango::Rectangle rectangle = layout->get_logical_extents();
287 double text_w = double(rectangle.get_width()) / Pango::SCALE;
288 double text_h = double(rectangle.get_height()) / Pango::SCALE;
289 double x = w * (key + 0.75) / 128.0;
290 get_window()->draw_layout(get_style()->get_black_gc(), int(x - text_w / 2 + 1),
291 int(h1 + h - text_h + 0.5), layout);
292 }
293
294 void RegionChooser::draw_region(int from, int to, const Gdk::Color& color)
295 {
296 const int h = KEYBOARD_HEIGHT;
297 const int w = get_width() - 1;
298 const int bh = int(h * 0.55);
299
300 Glib::RefPtr<Gdk::Window> window = get_window();
301 gc->set_foreground(color);
302
303 for (int i = from ; i < to ; i++) {
304 int note = (i + 3) % 12;
305 int x = int(w * i / 128.0 + 0.5) + 1;
306 int x2 = int(w * (i + 1.5) / 128.0 + 0.5);
307 int x3 = int(w * (i + 1) / 128.0 + 0.5);
308 int x4 = int(w * (i - 0.5) / 128.0 + 0.5);
309 int w1 = x3 - x;
310 switch (note) {
311 case 0: case 5: case 10:
312 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
313 window->draw_rectangle(gc, true, x4 + 1, h1 + bh + 1, x2 - x4 - 1, h - bh - 2);
314 break;
315 case 2: case 7:
316 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
317 window->draw_rectangle(gc, true, x4 + 1, h1 + bh + 1, x3 - x4 - 1, h - bh - 2);
318 break;
319 case 3: case 8:
320 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
321 window->draw_rectangle(gc, true, x, h1 + bh + 1, x2 - x, h - bh - 2);
322 if (note == 3) draw_digit(i);
323 break;
324 default:
325 window->draw_rectangle(gc, true, x, h1 + 1, w1, bh - 1);
326 break;
327 }
328 }
329 }
330
331 void RegionChooser::set_instrument(gig::Instrument* instrument)
332 {
333 this->instrument = instrument;
334 regions.update(instrument);
335 region = regions.first();
336 queue_draw();
337 region_selected();
338 dimensionManager.set_region(region);
339 }
340
341 bool RegionChooser::on_button_release_event(GdkEventButton* event)
342 {
343 const int k = int(event->x / (get_width() - 1) * 128.0);
344
345 // handle-note off on virtual keyboard
346 if (event->type == GDK_BUTTON_RELEASE) {
347 int velocity = (event->y >= REGION_BLOCK_HEIGHT + KEYBOARD_HEIGHT - 1) ? 127 :
348 int(float(event->y - REGION_BLOCK_HEIGHT) / float(KEYBOARD_HEIGHT) * 128.0f) + 1;
349 if (velocity <= 0) velocity = 1;
350 switch (m_VirtKeybModeChoice.get_value()) {
351 case VIRT_KEYBOARD_MODE_CHORD:
352 if (event->y >= REGION_BLOCK_HEIGHT)
353 keyboard_key_released_signal.emit(k, velocity);
354 break;
355 case VIRT_KEYBOARD_MODE_NORMAL:
356 default:
357 if (currentActiveKey >= 0 && currentActiveKey <= 127) {
358 keyboard_key_released_signal.emit(currentActiveKey, velocity);
359 currentActiveKey = -1;
360 }
361 break;
362 }
363 }
364
365 if (resize.active) {
366 get_window()->pointer_ungrab(event->time);
367 resize.active = false;
368
369 if (resize.mode == resize.moving_high_limit) {
370 if (resize.region->KeyRange.high != resize.pos - 1) {
371 instrument_struct_to_be_changed_signal.emit(instrument);
372 resize.region->SetKeyRange(
373 resize.region->KeyRange.low, // low
374 resize.pos - 1 // high
375 );
376 regions.update(instrument);
377 instrument_changed.emit();
378 instrument_struct_changed_signal.emit(instrument);
379 }
380 } else if (resize.mode == resize.moving_low_limit) {
381 if (resize.region->KeyRange.low != resize.pos) {
382 instrument_struct_to_be_changed_signal.emit(instrument);
383 resize.region->SetKeyRange(
384 resize.pos, // low
385 resize.region->KeyRange.high // high
386 );
387 regions.update(instrument);
388 instrument_changed.emit();
389 instrument_struct_changed_signal.emit(instrument);
390 }
391 }
392
393 if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
394 get_window()->set_cursor();
395 cursor_is_resize = false;
396 }
397 } else if (move.active) {
398 get_window()->pointer_ungrab(event->time);
399 move.active = false;
400
401 if (move.pos) {
402 instrument_struct_to_be_changed_signal.emit(instrument);
403 region->SetKeyRange(
404 region->KeyRange.low + move.pos,
405 region->KeyRange.high + move.pos
406 );
407 regions.update(instrument);
408 instrument_changed.emit();
409 instrument_struct_changed_signal.emit(instrument);
410 }
411
412 if (is_in_resize_zone(event->x, event->y)) {
413 get_window()->set_cursor(Gdk::Cursor(Gdk::SB_H_DOUBLE_ARROW));
414 cursor_is_resize = true;
415 }
416 }
417 return true;
418 }
419
420 bool RegionChooser::on_button_press_event(GdkEventButton* event)
421 {
422 if (!instrument) return true;
423
424 const int k = int(event->x / (get_width() - 1) * 128.0);
425
426 if (event->type == GDK_BUTTON_PRESS) {
427 if (event->y >= REGION_BLOCK_HEIGHT) {
428 int velocity = (event->y >= REGION_BLOCK_HEIGHT + KEYBOARD_HEIGHT - 1) ? 127 :
429 int(float(event->y - REGION_BLOCK_HEIGHT) / float(KEYBOARD_HEIGHT) * 128.0f) + 1;
430 currentActiveKey = k;
431 keyboard_key_hit_signal.emit(k, velocity);
432 }
433 }
434
435 if (event->y >= REGION_BLOCK_HEIGHT) return true;
436 if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
437 gig::Region* r = get_region(k);
438 if (r) {
439 region = r;
440 queue_draw();
441 region_selected();
442 dimensionManager.set_region(region);
443 popup_menu_inside_region->popup(event->button, event->time);
444 } else {
445 new_region_pos = k;
446 popup_menu_outside_region->popup(event->button, event->time);
447 }
448 } else {
449 if (is_in_resize_zone(event->x, event->y)) {
450 get_window()->pointer_grab(false,
451 Gdk::BUTTON_RELEASE_MASK |
452 Gdk::POINTER_MOTION_MASK |
453 Gdk::POINTER_MOTION_HINT_MASK,
454 Gdk::Cursor(Gdk::SB_H_DOUBLE_ARROW), event->time);
455 resize.active = true;
456 } else {
457 gig::Region* r = get_region(k);
458 if (r) {
459 region = r;
460 queue_draw();
461 region_selected();
462 dimensionManager.set_region(region);
463
464 get_window()->pointer_grab(false,
465 Gdk::BUTTON_RELEASE_MASK |
466 Gdk::POINTER_MOTION_MASK |
467 Gdk::POINTER_MOTION_HINT_MASK,
468 Gdk::Cursor(Gdk::FLEUR), event->time);
469 move.active = true;
470 move.from_x = event->x;
471 move.pos = 0;
472 }
473 }
474 }
475 return true;
476 }
477
478 gig::Region* RegionChooser::get_region(int key)
479 {
480 gig::Region* prev_region = 0;
481 gig::Region* next_region;
482 for (gig::Region *r = regions.first() ; r ; r = next_region) {
483 next_region = regions.next();
484
485 if (key < r->KeyRange.low) return 0;
486 if (key <= r->KeyRange.high) {
487 move.touch_left = prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low;
488 move.touch_right = next_region && r->KeyRange.high + 1 == next_region->KeyRange.low;
489 return r;
490 }
491 prev_region = r;
492 }
493 return 0;
494 }
495
496 void RegionChooser::motion_resize_region(int x, int y)
497 {
498 const int w = get_width() - 1;
499 Glib::RefPtr<Gdk::Window> window = get_window();
500
501 int k = int(double(x) / w * 128.0 + 0.5);
502
503 if (k < resize.min) k = resize.min;
504 else if (k > resize.max) k = resize.max;
505
506 if (k != resize.pos) {
507 if (resize.mode == resize.undecided) {
508 if (k < resize.pos) {
509 // edit high limit of prev_region
510 resize.max = resize.region->KeyRange.low;
511 resize.region = resize.prev_region;
512 resize.mode = resize.moving_high_limit;
513 } else {
514 // edit low limit of region
515 resize.min = resize.prev_region->KeyRange.high + 1;
516 resize.mode = resize.moving_low_limit;
517 }
518 }
519 Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
520 Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
521 if (region == resize.region) {
522 gc->set_foreground(red);
523 white = gc;
524 }
525 Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL);
526 int prevx = int(w * resize.pos / 128.0 + 0.5);
527 x = int(w * k / 128.0 + 0.5);
528
529 if (resize.mode == resize.moving_high_limit) {
530 if (k > resize.pos) {
531 window->draw_rectangle(white, true, prevx, 1, x - prevx, h1 - 2);
532 window->draw_line(black, prevx, 0, x, 0);
533 window->draw_line(black, prevx, h1 - 1, x, h1 - 1);
534 } else {
535 int xx = ((resize.pos == resize.max && resize.max != 128) ? 1 : 0);
536 window->draw_rectangle(bg, true, x + 1, 0, prevx - x - xx, h1);
537 }
538 } else {
539 if (k < resize.pos) {
540 window->draw_rectangle(white, true, x + 1, 1, prevx - x, h1 - 2);
541 window->draw_line(black, x, 0, prevx, 0);
542 window->draw_line(black, x, h1 - 1, prevx, h1 - 1);
543 } else {
544 int xx = ((resize.pos == resize.min && resize.min != 0) ? 1 : 0);
545 window->draw_rectangle(bg, true, prevx + xx, 0, x - prevx - xx, h1);
546 }
547 }
548 window->draw_line(black, x, 1, x, h1 - 2);
549 resize.pos = k;
550 }
551 }
552
553 void RegionChooser::motion_move_region(int x, int y)
554 {
555 const int w = get_width() - 1;
556 Glib::RefPtr<Gdk::Window> window = get_window();
557
558 int k = int(double(x - move.from_x) / w * 128.0 + 0.5);
559 if (k == move.pos) return;
560 int new_k;
561 bool new_touch_left;
562 bool new_touch_right;
563 int a = 0;
564 if (k > move.pos) {
565 for (gig::Region* r = regions.first() ; ; r = regions.next()) {
566 if (r != region) {
567 int b = r ? r->KeyRange.low : 128;
568
569 // gap: from a to b (not inclusive b)
570
571 if (region->KeyRange.high + move.pos >= b) {
572 // not found the current gap yet, just continue
573 } else {
574
575 if (a > region->KeyRange.low + k) {
576 // this gap is too far to the right, break
577 break;
578 }
579
580 int newhigh = std::min(region->KeyRange.high + k, b - 1);
581 int newlo = newhigh - (region->KeyRange.high - region->KeyRange.low);
582
583 if (newlo >= a) {
584 // yes it fits - it's a candidate
585 new_k = newlo - region->KeyRange.low;
586 new_touch_left = a > 0 && a == newlo;
587 new_touch_right = b < 128 && newhigh + 1 == b;
588 }
589 }
590 if (!r) break;
591 a = r->KeyRange.high + 1;
592 }
593 }
594 } else {
595 for (gig::Region* r = regions.first() ; ; r = regions.next()) {
596 if (r != region) {
597 int b = r ? r->KeyRange.low : 128;
598
599 // gap from a to b (not inclusive b)
600
601 if (region->KeyRange.high + k >= b) {
602 // not found the current gap yet, just continue
603 } else {
604
605 if (a > region->KeyRange.low + move.pos) {
606 // this gap is too far to the right, break
607 break;
608 }
609
610 int newlo = std::max(region->KeyRange.low + k, a);
611 int newhigh = newlo + (region->KeyRange.high - region->KeyRange.low);
612
613 if (newhigh < b) {
614 // yes it fits - break as the first one is the best
615 new_k = newlo - region->KeyRange.low;
616 new_touch_left = a > 0 && a == newlo;
617 new_touch_right = b < 128 && newhigh + 1 == b;
618 break;
619 }
620 }
621 if (!r) break;
622 a = r->KeyRange.high + 1;
623 }
624 }
625 }
626 k = new_k;
627 if (k == move.pos) return;
628
629 Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL);
630 int prevx = int(w * (move.pos + region->KeyRange.low) / 128.0 + 0.5);
631 x = int(w * (k + region->KeyRange.low) / 128.0 + 0.5);
632 int prevx2 = int(w * (move.pos + region->KeyRange.high + 1) / 128.0 + 0.5);
633 int x2 = int(w * (k + region->KeyRange.high + 1) / 128.0 + 0.5);
634 Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
635 gc->set_foreground(red);
636
637 if (!new_touch_left) window->draw_line(black, x, 1, x, h1 - 2);
638 if (!new_touch_right) window->draw_line(black, x2, 1, x2, h1 - 2);
639
640 if (k > move.pos) {
641 window->draw_rectangle(bg, true, prevx + (move.touch_left ? 1 : 0), 0,
642 std::min(x, prevx2 + 1 - (move.touch_right ? 1 : 0)) -
643 (prevx + (move.touch_left ? 1 : 0)), h1);
644
645 window->draw_line(black, std::max(x, prevx2 + 1), 0, x2, 0);
646 window->draw_line(black, std::max(x, prevx2 + 1), h1 - 1, x2, h1 - 1);
647 window->draw_rectangle(gc, true, std::max(x + 1, prevx2), 1,
648 x2 - std::max(x + 1, prevx2), h1 - 2);
649 } else {
650 window->draw_rectangle(bg, true, std::max(x2 + 1, prevx + (move.touch_left ? 1 : 0)), 0,
651 prevx2 + 1 - (move.touch_right ? 1 : 0) -
652 std::max(x2 + 1, prevx + (move.touch_left ? 1 : 0)), h1);
653
654 window->draw_line(black, x, 0, std::min(x2, prevx - 1), 0);
655 window->draw_line(black, x, h1 - 1, std::min(x2, prevx - 1), h1 - 1);
656
657 window->draw_rectangle(gc, true, x + 1, 1, std::min(x2 - 1, prevx) - x, h1 - 2);
658 }
659
660 move.pos = k;
661 move.touch_left = new_touch_left;
662 move.touch_right = new_touch_right;
663 }
664
665
666 bool RegionChooser::on_motion_notify_event(GdkEventMotion* event)
667 {
668 Glib::RefPtr<Gdk::Window> window = get_window();
669 int x, y;
670 Gdk::ModifierType state = Gdk::ModifierType(0);
671 window->get_pointer(x, y, state);
672
673 // handle virtual MIDI keyboard
674 if (m_VirtKeybModeChoice.get_value() != VIRT_KEYBOARD_MODE_CHORD &&
675 currentActiveKey > 0 &&
676 event->y >= REGION_BLOCK_HEIGHT &&
677 event->y < REGION_BLOCK_HEIGHT + KEYBOARD_HEIGHT)
678 {
679 const int k = int(event->x / (get_width() - 1) * 128.0);
680 int velocity = (event->y >= REGION_BLOCK_HEIGHT + KEYBOARD_HEIGHT - 1) ? 127 :
681 int(float(event->y - REGION_BLOCK_HEIGHT) / float(KEYBOARD_HEIGHT) * 128.0f) + 1;
682 if (velocity <= 0) velocity = 1;
683 keyboard_key_released_signal.emit(currentActiveKey, velocity);
684 currentActiveKey = k;
685 keyboard_key_hit_signal.emit(k, velocity);
686 }
687
688 if (resize.active) {
689 motion_resize_region(x, y);
690 } else if (move.active) {
691 motion_move_region(x, y);
692 } else {
693 if (is_in_resize_zone(x, y)) {
694 if (!cursor_is_resize) {
695 window->set_cursor(Gdk::Cursor(Gdk::SB_H_DOUBLE_ARROW));
696 cursor_is_resize = true;
697 }
698 } else if (cursor_is_resize) {
699 window->set_cursor();
700 cursor_is_resize = false;
701 }
702 }
703
704 return true;
705 }
706
707 bool RegionChooser::is_in_resize_zone(double x, double y) {
708 const int w = get_width() - 1;
709
710 if (instrument && y >= 0 && y <= h1) {
711 gig::Region* prev_region = 0;
712 gig::Region* next_region;
713 for (gig::Region* r = regions.first(); r ; r = next_region) {
714 next_region = regions.next();
715
716 int lo = int(w * (r->KeyRange.low) / 128.0 + 0.5);
717 if (x <= lo - 2) break;
718 if (x < lo + 2) {
719 resize.region = r;
720 resize.pos = r->KeyRange.low;
721 resize.max = r->KeyRange.high;
722
723 if (prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low) {
724 // we don't know yet if it's the high limit of
725 // prev_region or the low limit of r that's going
726 // to be edited
727 resize.mode = resize.undecided;
728 resize.min = prev_region->KeyRange.low + 1;
729 resize.prev_region = prev_region;
730 return resize.min != resize.max;
731 }
732
733 // edit low limit
734 resize.mode = resize.moving_low_limit;
735 resize.min = prev_region ? prev_region->KeyRange.high + 1 : 0;
736 return resize.min != resize.max;
737 }
738 if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low) {
739 int hi = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
740 if (x <= hi - 2) break;
741 if (x < hi + 2) {
742 // edit high limit
743 resize.region = r;
744 resize.pos = r->KeyRange.high + 1;
745 resize.mode = resize.moving_high_limit;
746 resize.min = r->KeyRange.low + 1;
747 resize.max = next_region ? next_region->KeyRange.low : 128;
748 return resize.min != resize.max;
749 }
750 }
751 prev_region = r;
752 }
753 }
754 return false;
755 }
756
757 sigc::signal<void>& RegionChooser::signal_region_selected()
758 {
759 return region_selected;
760 }
761
762 sigc::signal<void>& RegionChooser::signal_instrument_changed()
763 {
764 return instrument_changed;
765 }
766
767 void RegionChooser::show_region_properties()
768 {
769 if (!region) return;
770 Gtk::Dialog dialog(_("Region Properties"), true /*modal*/);
771 // add "Keygroup" checkbox
772 Gtk::CheckButton checkBoxKeygroup(_("Member of a Keygroup (Exclusive Group)"));
773 checkBoxKeygroup.set_active(region->KeyGroup);
774 dialog.get_vbox()->pack_start(checkBoxKeygroup);
775 checkBoxKeygroup.show();
776 // add "Keygroup" spinbox
777 Gtk::Adjustment adjustment(1, 1, pow(2,32));
778 Gtk::SpinButton spinBox(adjustment);
779 if (region->KeyGroup) spinBox.set_value(region->KeyGroup);
780 dialog.get_vbox()->pack_start(spinBox);
781 spinBox.show();
782 // add OK and CANCEL buttons to the dialog
783 dialog.add_button(Gtk::Stock::OK, 0);
784 dialog.add_button(Gtk::Stock::CANCEL, 1);
785 dialog.show_all_children();
786 if (!dialog.run()) { // OK selected ...
787 region->KeyGroup =
788 (checkBoxKeygroup.get_active()) ? spinBox.get_value_as_int() : 0;
789 }
790 }
791
792 void RegionChooser::add_region()
793 {
794 instrument_struct_to_be_changed_signal.emit(instrument);
795
796 region = instrument->AddRegion();
797 region->SetKeyRange(new_region_pos, new_region_pos);
798
799 instrument_struct_changed_signal.emit(instrument);
800 regions.update(instrument);
801
802 queue_draw();
803 region_selected();
804 dimensionManager.set_region(region);
805 instrument_changed();
806 }
807
808 void RegionChooser::delete_region()
809 {
810 instrument_struct_to_be_changed_signal.emit(instrument);
811 instrument->DeleteRegion(region);
812 instrument_struct_changed_signal.emit(instrument);
813 regions.update(instrument);
814
815 region = 0;
816 queue_draw();
817 region_selected();
818 dimensionManager.set_region(region);
819 instrument_changed();
820 }
821
822 void RegionChooser::manage_dimensions()
823 {
824 gig::Region* region = get_region();
825 if (!region) return;
826 dimensionManager.show(region);
827 }
828
829 void RegionChooser::on_dimension_manager_changed() {
830 region_selected();
831 instrument_changed();
832 }
833
834 sigc::signal<void, gig::Instrument*>& RegionChooser::signal_instrument_struct_to_be_changed() {
835 return instrument_struct_to_be_changed_signal;
836 }
837
838 sigc::signal<void, gig::Instrument*>& RegionChooser::signal_instrument_struct_changed() {
839 return instrument_struct_changed_signal;
840 }
841
842 sigc::signal<void, gig::Region*>& RegionChooser::signal_region_to_be_changed() {
843 return region_to_be_changed_signal;
844 }
845
846 sigc::signal<void, gig::Region*>& RegionChooser::signal_region_changed_signal() {
847 return region_changed_signal;
848 }
849
850 sigc::signal<void, int/*key*/, int/*velocity*/>& RegionChooser::signal_keyboard_key_hit() {
851 return keyboard_key_hit_signal;
852 }
853
854 sigc::signal<void, int/*key*/, int/*velocity*/>& RegionChooser::signal_keyboard_key_released() {
855 return keyboard_key_released_signal;
856 }

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