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

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Revision 1225 - (hide annotations) (download)
Sun Jun 10 10:56:11 2007 UTC (13 years ago) by schoenebeck
File size: 16770 byte(s)
moved gigedit sources from src/ -> src/gigedit/

1 schoenebeck 1225 /*
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     sel_changed_signal.emit();
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     resize.region->KeyRange.high = resize.pos - 1;
237     } else if (resize.mode == resize.moving_low_limit) {
238     resize.region->KeyRange.low = resize.pos;
239     }
240    
241     if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
242     get_window()->set_cursor();
243     cursor_is_resize = false;
244     }
245     }
246     return true;
247     }
248    
249     bool RegionChooser::on_button_press_event(GdkEventButton* event)
250     {
251     if (!instrument) return true;
252    
253     int k = int(event->x / (width - 1) * 128.0);
254    
255     if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
256     gig::Region* r = get_region(k);
257     if (r) {
258     region = r;
259     queue_draw();
260     sel_changed_signal.emit();
261     popup_menu_inside_region->popup(event->button, event->time);
262     } else {
263     new_region_pos = k;
264     popup_menu_outside_region->popup(event->button, event->time);
265     }
266     } else {
267     if (is_in_resize_zone(event->x, event->y)) {
268     Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
269     get_window()->pointer_grab(false,
270     Gdk::BUTTON_RELEASE_MASK |
271     Gdk::POINTER_MOTION_MASK |
272     Gdk::POINTER_MOTION_HINT_MASK,
273     double_arrow, event->time);
274     resize.active = true;
275     } else {
276     gig::Region* r = get_region(k);
277     if (r) {
278     region = r;
279     queue_draw();
280     sel_changed_signal.emit();
281     }
282     }
283     }
284     return true;
285     }
286    
287     gig::Region* RegionChooser::get_region(int key)
288     {
289     for (gig::Region *r = instrument->GetFirstRegion() ; r ;
290     r = instrument->GetNextRegion()) {
291     if (key < r->KeyRange.low) return 0;
292     if (key <= r->KeyRange.high) return r;
293     }
294     return 0;
295     }
296    
297     bool RegionChooser::on_motion_notify_event(GdkEventMotion* event)
298     {
299     const int w = width - 1;
300     Glib::RefPtr<Gdk::Window> window = get_window();
301     int x, y;
302     Gdk::ModifierType state = Gdk::ModifierType(0);
303     window->get_pointer(x, y, state);
304     if (resize.active) {
305     int k = int(double(x) / w * 128.0 + 0.5);
306    
307     if (k < resize.min) k = resize.min;
308     else if (k > resize.max) k = resize.max;
309    
310     if (k != resize.pos) {
311     if (resize.mode == resize.undecided) {
312     if (k < resize.pos) {
313     // edit high limit of prev_region
314     resize.max = resize.region->KeyRange.low;
315     resize.region = resize.prev_region;
316     resize.mode = resize.moving_high_limit;
317     } else {
318     // edit low limit of region
319     resize.min = resize.prev_region->KeyRange.high + 1;
320     resize.mode = resize.moving_low_limit;
321     }
322     }
323     Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
324     Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
325     if (region == resize.region) {
326     gc->set_foreground(red);
327     white = gc;
328     }
329     Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL);
330     int prevx = int(w * resize.pos / 128.0 + 0.5);
331     x = int(w * k / 128.0 + 0.5);
332    
333     if (resize.mode == resize.moving_high_limit) {
334     if (k > resize.pos) {
335     window->draw_rectangle(white, true, prevx, 1, x - prevx, h1 - 2);
336     window->draw_line(black, prevx, 0, x, 0);
337     window->draw_line(black, prevx, h1 - 1, x, h1 - 1);
338     } else {
339     int xx = ((resize.pos == resize.max && resize.max != 128) ? 1 : 0);
340     window->draw_rectangle(bg, true, x + 1, 0, prevx - x - xx, h1);
341     }
342     } else {
343     if (k < resize.pos) {
344     window->draw_rectangle(white, true, x + 1, 1, prevx - x, h1 - 2);
345     window->draw_line(black, x, 0, prevx, 0);
346     window->draw_line(black, x, h1 - 1, prevx, h1 - 1);
347     } else {
348     int xx = ((resize.pos == resize.min && resize.min != 0) ? 1 : 0);
349     window->draw_rectangle(bg, true, prevx + xx, 0, x - prevx - xx, h1);
350     }
351     }
352     window->draw_line(black, x, 1, x, h1 - 2);
353     resize.pos = k;
354     }
355     } else {
356     if (is_in_resize_zone(x, y)) {
357     if (!cursor_is_resize) {
358     Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
359     window->set_cursor(double_arrow);
360     cursor_is_resize = true;
361     }
362     } else if (cursor_is_resize) {
363     window->set_cursor();
364     cursor_is_resize = false;
365     }
366     }
367    
368     return true;
369     }
370    
371     bool RegionChooser::is_in_resize_zone(double x, double y) {
372     const int w = width - 1;
373    
374     if (instrument && y >= 0 && y <= h1) {
375     gig::Region* prev_region = 0;
376     gig::Region* next_region;
377     for (gig::Region* r = instrument->GetFirstRegion() ; r ; r = next_region) {
378     next_region = instrument->GetNextRegion();
379    
380     int lo = int(w * (r->KeyRange.low) / 128.0 + 0.5);
381     if (x <= lo - 2) break;
382     if (x < lo + 2) {
383     resize.region = r;
384     resize.pos = r->KeyRange.low;
385     resize.max = r->KeyRange.high;
386    
387     if (prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low) {
388     // we don't know yet if it's the high limit of
389     // prev_region or the low limit of r that's going
390     // to be edited
391     resize.mode = resize.undecided;
392     resize.min = prev_region->KeyRange.low + 1;
393     resize.prev_region = prev_region;
394     return true;
395     }
396    
397     // edit low limit
398     resize.mode = resize.moving_low_limit;
399     resize.min = prev_region ? prev_region->KeyRange.high + 1 : 0;
400     return true;
401     }
402     if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low) {
403     int hi = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
404     if (x <= hi - 2) break;
405     if (x < hi + 2) {
406     // edit high limit
407     resize.region = r;
408     resize.pos = r->KeyRange.high + 1;
409     resize.mode = resize.moving_high_limit;
410     resize.min = r->KeyRange.low + 1;
411     resize.max = next_region ? next_region->KeyRange.low : 128;
412     return true;
413     }
414     }
415     prev_region = r;
416     }
417     }
418     return false;
419     }
420    
421     sigc::signal<void> RegionChooser::signal_sel_changed()
422     {
423     return sel_changed_signal;
424     }
425    
426     void RegionChooser::show_region_properties()
427     {
428     if (!region) return;
429     Gtk::Dialog dialog("Region Properties", true /*modal*/);
430     // add "Keygroup" checkbox
431     Gtk::CheckButton checkBoxKeygroup("Member of a Keygroup (Exclusive Group)");
432     checkBoxKeygroup.set_active(region->KeyGroup);
433     dialog.get_vbox()->pack_start(checkBoxKeygroup);
434     checkBoxKeygroup.show();
435     // add "Keygroup" spinbox
436     Gtk::Adjustment adjustment(1, 1, pow(2,32));
437     Gtk::SpinButton spinBox(adjustment);
438     if (region->KeyGroup) spinBox.set_value(region->KeyGroup);
439     dialog.get_vbox()->pack_start(spinBox);
440     spinBox.show();
441     // add OK and CANCEL buttons to the dialog
442     dialog.add_button(Gtk::Stock::OK, 0);
443     dialog.add_button(Gtk::Stock::CANCEL, 1);
444     dialog.show_all_children();
445     if (!dialog.run()) { // OK selected ...
446     region->KeyGroup =
447     (checkBoxKeygroup.get_active()) ? spinBox.get_value_as_int() : 0;
448     }
449     }
450    
451     void RegionChooser::add_region()
452     {
453     gig::Region* r;
454     for (r = instrument->GetFirstRegion() ; r ; r = instrument->GetNextRegion()) {
455     if (r->KeyRange.low > new_region_pos) break;
456     }
457    
458     region = instrument->AddRegion();
459     region->KeyRange.low = region->KeyRange.high = new_region_pos;
460    
461     instrument->MoveRegion(region, r);
462     queue_draw();
463     sel_changed_signal.emit();
464     }
465    
466     void RegionChooser::delete_region()
467     {
468     instrument->DeleteRegion(region);
469     region = 0;
470     queue_draw();
471     sel_changed_signal.emit();
472     }
473    
474     void RegionChooser::manage_dimensions()
475     {
476     gig::Region* region = get_region();
477     if (!region) return;
478     dimensionManager.show(region);
479     }
480    
481     void RegionChooser::on_dimension_manager_changed() {
482     sel_changed_signal.emit();
483     }

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