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

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Revision 2246 - (show annotations) (download) (as text)
Fri Aug 19 10:55:41 2011 UTC (8 years, 1 month ago) by persson
File MIME type: text/x-c++hdr
File size: 5971 byte(s)
* gtkmm 3 fix: rewrote the custom widgets (regionchooser and
  dimregionchooser) so they only draw pixels in the on_draw
  method. This should make them work again in newer gtkmm 3
  environments.

1 /* -*- c++ -*-
2 * Copyright (C) 2006-2011 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 #ifndef GIGEDIT_REGIONCHOOSER_H
21 #define GIGEDIT_REGIONCHOOSER_H
22
23 #include <vector>
24
25 #include <gtkmm/drawingarea.h>
26 #include <gtkmm/uimanager.h>
27 #include <gdkmm/window.h>
28 #include <gtkmm/menu.h>
29
30 #include "dimensionmanager.h"
31 #include "paramedit.h"
32 #include "compat.h"
33
34 #include <gig.h>
35
36 enum virt_keyboard_mode_t {
37 VIRT_KEYBOARD_MODE_NORMAL,
38 VIRT_KEYBOARD_MODE_CHORD
39 };
40
41 class SortedRegions {
42 private:
43 std::vector<gig::Region*> regions;
44 std::vector<gig::Region*>::iterator region_iterator;
45
46 public:
47 void update(gig::Instrument* instrument);
48 gig::Region* first();
49 gig::Region* next();
50 bool operator() (gig::Region* x, gig::Region* y) {
51 return x->KeyRange.low < y->KeyRange.low;
52 }
53 };
54
55 class RegionChooser : public Gtk::DrawingArea
56 {
57 public:
58 RegionChooser();
59 virtual ~RegionChooser();
60
61 void set_instrument(gig::Instrument* instrument);
62
63 sigc::signal<void>& signal_region_selected();
64 sigc::signal<void>& signal_instrument_changed();
65
66 sigc::signal<void, gig::Instrument*>& signal_instrument_struct_to_be_changed();
67 sigc::signal<void, gig::Instrument*>& signal_instrument_struct_changed();
68
69 sigc::signal<void, gig::Region*>& signal_region_to_be_changed();
70 sigc::signal<void, gig::Region*>& signal_region_changed_signal();
71
72 sigc::signal<void, int/*key*/, int/*velocity*/>& signal_keyboard_key_hit();
73 sigc::signal<void, int/*key*/, int/*velocity*/>& signal_keyboard_key_released();
74
75 gig::Region* get_region() { return region; }
76
77 void on_note_on_event(int key, int velocity);
78 void on_note_off_event(int key, int velocity);
79
80 Gtk::HBox m_VirtKeybPropsBox;
81
82 protected:
83 #if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) || GTKMM_MAJOR_VERSION < 2
84 virtual bool on_expose_event(GdkEventExpose* e);
85 #else
86 virtual bool on_draw(const Cairo::RefPtr<Cairo::Context>& cr);
87 #endif
88 virtual bool on_button_press_event(GdkEventButton* event);
89 virtual bool on_button_release_event(GdkEventButton* event);
90 virtual bool on_motion_notify_event(GdkEventMotion* event);
91
92 gig::Region* get_region(int key);
93
94 Gdk::RGBA activeKeyColor, red, grey1, white, black;
95
96 sigc::signal<void> region_selected;
97 sigc::signal<void> instrument_changed;
98
99 sigc::signal<void, gig::Instrument*> instrument_struct_to_be_changed_signal;
100 sigc::signal<void, gig::Instrument*> instrument_struct_changed_signal;
101
102 sigc::signal<void, gig::Region*> region_to_be_changed_signal;
103 sigc::signal<void, gig::Region*> region_changed_signal;
104
105 sigc::signal<void, int/*key*/, int/*velocity*/> keyboard_key_hit_signal;
106 sigc::signal<void, int/*key*/, int/*velocity*/> keyboard_key_released_signal;
107
108 gig::Instrument* instrument;
109 gig::Region* region;
110 SortedRegions regions;
111
112 bool is_black_key(int key);
113 void draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
114 int clip_low, int clip_high);
115 void draw_regions(const Cairo::RefPtr<Cairo::Context>& cr,
116 int clip_low, int clip_high);
117 void draw_key(const Cairo::RefPtr<Cairo::Context>& cr, int key);
118 void draw_digit(const Cairo::RefPtr<Cairo::Context>& cr, int key);
119 void motion_resize_region(int x, int y);
120 void motion_move_region(int x, int y);
121 void update_after_resize();
122 void update_after_move(int pos);
123 void invalidate_key(int key);
124
125 // returns the leftmost pixel of a key
126 int key_to_x(double k, int w) const {
127 return int(k * w / 128.0 + 0.5);
128 }
129
130 // returns the key given a pixel
131 int x_to_key(double x, int w) const {
132 return int(x / w * 128.0);
133 }
134
135 // returns the key given a pixel. If the pixel is the border
136 // between two keys, the key to the r�ght is always returned.
137 int x_to_key_right(double x, int w) const {
138 return int(ceil((x + 0.5) / w * 128.0)) - 1;
139 }
140
141 // information needed during a resize
142 struct {
143 bool active;
144 enum {
145 undecided,
146 moving_high_limit,
147 moving_low_limit
148 } mode;
149 int pos;
150 int min;
151 int max;
152 gig::Region* region;
153 gig::Region* prev_region;
154 } resize;
155
156 // information needed during a region move
157 struct {
158 bool active;
159 int offset;
160 } move;
161
162 bool cursor_is_resize;
163 bool is_in_resize_zone(double x, double y);
164
165 int h1;
166
167 Gtk::Menu* popup_menu_inside_region;
168 Gtk::Menu* popup_menu_outside_region;
169 void show_region_properties();
170 void add_region();
171 void delete_region();
172 void manage_dimensions();
173 void on_dimension_manager_changed();
174 int new_region_pos;
175
176 Glib::RefPtr<Gtk::ActionGroup> actionGroup;
177 Glib::RefPtr<Gtk::UIManager> uiManager;
178
179 // properties of the virtual keyboard
180 ChoiceEntry<virt_keyboard_mode_t> m_VirtKeybModeChoice;
181 Gtk::Label m_VirtKeybVelocityLabelDescr;
182 Gtk::Label m_VirtKeybVelocityLabel;
183 Gtk::Label m_VirtKeybOffVelocityLabelDescr;
184 Gtk::Label m_VirtKeybOffVelocityLabel;
185 int currentActiveKey;
186 bool key_pressed[128];
187
188 DimensionManager dimensionManager;
189 };
190
191 #endif

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