src/gigedit/regionchooser.h

/*                                                         -*- c++ -*-
 * Copyright (C) 2006-2017 Andreas Persson
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License as
 * published by the Free Software Foundation; either version 2, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with program; see the file COPYING. If not, write to the Free
 * Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA.
 */

#ifndef GIGEDIT_REGIONCHOOSER_H
#define GIGEDIT_REGIONCHOOSER_H

#include <vector>

#include "compat.h"

#include <gtkmm/box.h>
#include <gtkmm/drawingarea.h>
#include <gdkmm/window.h>
#include <gtkmm/menu.h>

#if USE_GTKMM_BUILDER
# include <gtkmm/builder.h>
#else
# include <gtkmm/uimanager.h> // deprecated in gtkmm >= 3.21.4
#endif

#include "dimensionmanager.h"
#include "paramedit.h"
#include "compat.h"

#ifdef LIBGIG_HEADER_FILE
# include LIBGIG_HEADER_FILE(gig.h)
#else
# include <gig.h>
#endif

enum virt_keyboard_mode_t {
    VIRT_KEYBOARD_MODE_NORMAL,
    VIRT_KEYBOARD_MODE_CHORD
};

class SortedRegions {
private:
    std::vector<gig::Region*> regions;
    std::vector<gig::Region*>::iterator region_iterator;

public:
    void update(gig::Instrument* instrument);
    gig::Region* first();
    gig::Region* next();
    bool operator() (gig::Region* x, gig::Region* y) const {
        return x->KeyRange.low < y->KeyRange.low;
    }
};

class RegionChooser : public Gtk::DrawingArea
{
public:
    RegionChooser();
    virtual ~RegionChooser();

    void set_instrument(gig::Instrument* instrument);

    // ATM only used for painting auto selected regions with gray hatched pattern
    void setModifyAllRegions(bool b);

    sigc::signal<void>& signal_region_selected();
    sigc::signal<void>& signal_instrument_changed();

    sigc::signal<void, gig::Instrument*>& signal_instrument_struct_to_be_changed();
    sigc::signal<void, gig::Instrument*>& signal_instrument_struct_changed();

    sigc::signal<void, gig::Region*>& signal_region_to_be_changed();
    sigc::signal<void, gig::Region*>& signal_region_changed_signal();

    sigc::signal<void, int/*key*/, int/*velocity*/>& signal_keyboard_key_hit();
    sigc::signal<void, int/*key*/, int/*velocity*/>& signal_keyboard_key_released();

    gig::Region* get_region() { return region; }
    void set_region(gig::Region* region);
    void select_next_region();
    void select_prev_region();

    void on_note_on_event(int key, int velocity);
    void on_note_off_event(int key, int velocity);

    HBox m_VirtKeybPropsBox;

protected:
#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) || GTKMM_MAJOR_VERSION < 2
    virtual bool on_expose_event(GdkEventExpose* e);
#else
    virtual bool on_draw(const Cairo::RefPtr<Cairo::Context>& cr);
#endif
    virtual bool on_button_press_event(GdkEventButton* event);
    virtual bool on_button_release_event(GdkEventButton* event);
    virtual bool on_motion_notify_event(GdkEventMotion* event);

    gig::Region* get_region(int key);

    Gdk::RGBA activeKeyColor, blue, grey1, white, black;
    Glib::RefPtr<Gdk::Pixbuf> blueHatchedPatternARGB;
    Cairo::RefPtr<Cairo::SurfacePattern> blueHatchedSurfacePattern;

    sigc::signal<void> region_selected;
    sigc::signal<void> instrument_changed;

    sigc::signal<void, gig::Instrument*> instrument_struct_to_be_changed_signal;
    sigc::signal<void, gig::Instrument*> instrument_struct_changed_signal;

    sigc::signal<void, gig::Region*> region_to_be_changed_signal;
    sigc::signal<void, gig::Region*> region_changed_signal;

    sigc::signal<void, int/*key*/, int/*velocity*/> keyboard_key_hit_signal;
    sigc::signal<void, int/*key*/, int/*velocity*/> keyboard_key_released_signal;

    gig::Instrument* instrument;
    gig::Region* region;
    SortedRegions regions;

    bool is_black_key(int key);
    void draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
                       int clip_low, int clip_high);
    void draw_regions(const Cairo::RefPtr<Cairo::Context>& cr,
                      int clip_low, int clip_high);
    void draw_key(const Cairo::RefPtr<Cairo::Context>& cr, int key);
    void draw_digit(const Cairo::RefPtr<Cairo::Context>& cr, int key);
    void motion_resize_region(int x, int y);
    void motion_move_region(int x, int y);
    void update_after_resize();
    void update_after_move(int pos);
    void invalidate_key(int key);

    // returns the leftmost pixel of a key
    int key_to_x(double k, int w) const {
        return int(k * w / 128.0 + 0.5);
    }

    // returns the key given a pixel
    int x_to_key(double x, int w) const {
        return int(x / w * 128.0);
    }

    // returns the key given a pixel. If the pixel is the border
    // between two keys, the key to the r�ght is always returned.
    int x_to_key_right(double x, int w) const {
        return int(ceil((x + 0.5) / w * 128.0)) - 1;
    }

    // information needed during a resize
    struct {
        bool active;
        enum {
            undecided,
            moving_high_limit,
            moving_low_limit
        } mode;
        int pos;
        int min;
        int max;
        gig::Region* region;
        gig::Region* prev_region;
    } resize;

    // information needed during a region move
    struct {
        bool active;
        int offset;
    } move;

    bool cursor_is_resize;
    bool is_in_resize_zone(double x, double y);

    int h1;

    // ATM only used for painting auto selected regions with gray hatched pattern
    bool modifyallregions;

    Gtk::Menu* popup_menu_inside_region;
    Gtk::Menu* popup_menu_outside_region;
    void show_region_properties();
    void add_region();
    void delete_region();
    void manage_dimensions();
    void on_dimension_manager_changed();
    int new_region_pos;

    Glib::RefPtr<ActionGroup> actionGroup;
#if USE_GTKMM_BUILDER
    Glib::RefPtr<Gtk::Builder> uiManager;
#else
    Glib::RefPtr<Gtk::UIManager> uiManager;
#endif

    // properties of the virtual keyboard
    ChoiceEntry<virt_keyboard_mode_t> m_VirtKeybModeChoice;
    Gtk::Label m_VirtKeybVelocityLabelDescr;
    Gtk::Label m_VirtKeybVelocityLabel;
    Gtk::Label m_VirtKeybOffVelocityLabelDescr;
    Gtk::Label m_VirtKeybOffVelocityLabel;
    int currentActiveKey;
    bool key_pressed[128];

    DimensionManager dimensionManager;
};

#endif
1	/* -- c++ --
2	* Copyright (C) 2006-2017 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 "compat.h"
26
27	#include <gtkmm/box.h>
28	#include <gtkmm/drawingarea.h>
29	#include <gdkmm/window.h>
30	#include <gtkmm/menu.h>
31
32	#if USE_GTKMM_BUILDER
33	# include <gtkmm/builder.h>
34	#else
35	# include <gtkmm/uimanager.h> // deprecated in gtkmm >= 3.21.4
36	#endif
37
38	#include "dimensionmanager.h"
39	#include "paramedit.h"
40	#include "compat.h"
41
42	#ifdef LIBGIG_HEADER_FILE
43	# include LIBGIG_HEADER_FILE(gig.h)
44	#else
45	# include <gig.h>
46	#endif
47
48	enum virt_keyboard_mode_t {
49	VIRT_KEYBOARD_MODE_NORMAL,
50	VIRT_KEYBOARD_MODE_CHORD
51	};
52
53	class SortedRegions {
54	private:
55	std::vector<gig::Region*> regions;
56	std::vector<gig::Region*>::iterator region_iterator;
57
58	public:
59	void update(gig::Instrument* instrument);
60	gig::Region* first();
61	gig::Region* next();
62	bool operator() (gig::Region* x, gig::Region* y) const {
63	return x->KeyRange.low < y->KeyRange.low;
64	}
65	};
66
67	class RegionChooser : public Gtk::DrawingArea
68	{
69	public:
70	RegionChooser();
71	virtual ~RegionChooser();
72
73	void set_instrument(gig::Instrument* instrument);
74
75	// ATM only used for painting auto selected regions with gray hatched pattern
76	void setModifyAllRegions(bool b);
77
78	sigc::signal<void>& signal_region_selected();
79	sigc::signal<void>& signal_instrument_changed();
80
81	sigc::signal<void, gig::Instrument*>& signal_instrument_struct_to_be_changed();
82	sigc::signal<void, gig::Instrument*>& signal_instrument_struct_changed();
83
84	sigc::signal<void, gig::Region*>& signal_region_to_be_changed();
85	sigc::signal<void, gig::Region*>& signal_region_changed_signal();
86
87	sigc::signal<void, int/key/, int/velocity/>& signal_keyboard_key_hit();
88	sigc::signal<void, int/key/, int/velocity/>& signal_keyboard_key_released();
89
90	gig::Region* get_region() { return region; }
91	void set_region(gig::Region* region);
92	void select_next_region();
93	void select_prev_region();
94
95	void on_note_on_event(int key, int velocity);
96	void on_note_off_event(int key, int velocity);
97
98	HBox m_VirtKeybPropsBox;
99
100	protected:
101	#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) \|\| GTKMM_MAJOR_VERSION < 2
102	virtual bool on_expose_event(GdkEventExpose* e);
103	#else
104	virtual bool on_draw(const Cairo::RefPtr<Cairo::Context>& cr);
105	#endif
106	virtual bool on_button_press_event(GdkEventButton* event);
107	virtual bool on_button_release_event(GdkEventButton* event);
108	virtual bool on_motion_notify_event(GdkEventMotion* event);
109
110	gig::Region* get_region(int key);
111
112	Gdk::RGBA activeKeyColor, blue, grey1, white, black;
113	Glib::RefPtr<Gdk::Pixbuf> blueHatchedPatternARGB;
114	Cairo::RefPtr<Cairo::SurfacePattern> blueHatchedSurfacePattern;
115
116	sigc::signal<void> region_selected;
117	sigc::signal<void> instrument_changed;
118
119	sigc::signal<void, gig::Instrument*> instrument_struct_to_be_changed_signal;
120	sigc::signal<void, gig::Instrument*> instrument_struct_changed_signal;
121
122	sigc::signal<void, gig::Region*> region_to_be_changed_signal;
123	sigc::signal<void, gig::Region*> region_changed_signal;
124
125	sigc::signal<void, int/key/, int/velocity/> keyboard_key_hit_signal;
126	sigc::signal<void, int/key/, int/velocity/> keyboard_key_released_signal;
127
128	gig::Instrument* instrument;
129	gig::Region* region;
130	SortedRegions regions;
131
132	bool is_black_key(int key);
133	void draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
134	int clip_low, int clip_high);
135	void draw_regions(const Cairo::RefPtr<Cairo::Context>& cr,
136	int clip_low, int clip_high);
137	void draw_key(const Cairo::RefPtr<Cairo::Context>& cr, int key);
138	void draw_digit(const Cairo::RefPtr<Cairo::Context>& cr, int key);
139	void motion_resize_region(int x, int y);
140	void motion_move_region(int x, int y);
141	void update_after_resize();
142	void update_after_move(int pos);
143	void invalidate_key(int key);
144
145	// returns the leftmost pixel of a key
146	int key_to_x(double k, int w) const {
147	return int(k * w / 128.0 + 0.5);
148	}
149
150	// returns the key given a pixel
151	int x_to_key(double x, int w) const {
152	return int(x / w * 128.0);
153	}
154
155	// returns the key given a pixel. If the pixel is the border
156	// between two keys, the key to the r�ght is always returned.
157	int x_to_key_right(double x, int w) const {
158	return int(ceil((x + 0.5) / w * 128.0)) - 1;
159	}
160
161	// information needed during a resize
162	struct {
163	bool active;
164	enum {
165	undecided,
166	moving_high_limit,
167	moving_low_limit
168	} mode;
169	int pos;
170	int min;
171	int max;
172	gig::Region* region;
173	gig::Region* prev_region;
174	} resize;
175
176	// information needed during a region move
177	struct {
178	bool active;
179	int offset;
180	} move;
181
182	bool cursor_is_resize;
183	bool is_in_resize_zone(double x, double y);
184
185	int h1;
186
187	// ATM only used for painting auto selected regions with gray hatched pattern
188	bool modifyallregions;
189
190	Gtk::Menu* popup_menu_inside_region;
191	Gtk::Menu* popup_menu_outside_region;
192	void show_region_properties();
193	void add_region();
194	void delete_region();
195	void manage_dimensions();
196	void on_dimension_manager_changed();
197	int new_region_pos;
198
199	Glib::RefPtr<ActionGroup> actionGroup;
200	#if USE_GTKMM_BUILDER
201	Glib::RefPtr<Gtk::Builder> uiManager;
202	#else
203	Glib::RefPtr<Gtk::UIManager> uiManager;
204	#endif
205
206	// properties of the virtual keyboard
207	ChoiceEntry<virt_keyboard_mode_t> m_VirtKeybModeChoice;
208	Gtk::Label m_VirtKeybVelocityLabelDescr;
209	Gtk::Label m_VirtKeybVelocityLabel;
210	Gtk::Label m_VirtKeybOffVelocityLabelDescr;
211	Gtk::Label m_VirtKeybOffVelocityLabel;
212	int currentActiveKey;
213	bool key_pressed[128];
214
215	DimensionManager dimensionManager;
216	};
217
218	#endif