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

#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);

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

    Gtk::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, red, grey1, white, black;

    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;

    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<Gtk::ActionGroup> actionGroup;
    Glib::RefPtr<Gtk::UIManager> uiManager;

    // 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	schoenebeck	1225	/* -- c++ --
2	schoenebeck	3068	* Copyright (C) 2006-2017 Andreas Persson
3	schoenebeck	1225	*
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	persson	1623	#include <vector>
24
25	persson	2844	#include <gtkmm/box.h>
26	schoenebeck	1225	#include <gtkmm/drawingarea.h>
27			#include <gtkmm/uimanager.h>
28			#include <gdkmm/window.h>
29			#include <gtkmm/menu.h>
30
31			#include "dimensionmanager.h"
32	schoenebeck	1661	#include "paramedit.h"
33	persson	2169	#include "compat.h"
34	schoenebeck	1225
35	schoenebeck	3068	#ifdef LIBGIG_HEADER_FILE
36			# include LIBGIG_HEADER_FILE(gig.h)
37			#else
38			# include <gig.h>
39			#endif
40	schoenebeck	1225
41	schoenebeck	1661	enum virt_keyboard_mode_t {
42			VIRT_KEYBOARD_MODE_NORMAL,
43			VIRT_KEYBOARD_MODE_CHORD
44			};
45
46	persson	1623	class SortedRegions {
47			private:
48			std::vector<gig::Region*> regions;
49			std::vector<gig::Region*>::iterator region_iterator;
50
51			public:
52			void update(gig::Instrument* instrument);
53			gig::Region* first();
54			gig::Region* next();
55	persson	2841	bool operator() (gig::Region* x, gig::Region* y) const {
56	persson	1623	return x->KeyRange.low < y->KeyRange.low;
57			}
58			};
59
60	schoenebeck	1225	class RegionChooser : public Gtk::DrawingArea
61			{
62			public:
63			RegionChooser();
64			virtual ~RegionChooser();
65
66			void set_instrument(gig::Instrument* instrument);
67
68	schoenebeck	1339	sigc::signal<void>& signal_region_selected();
69			sigc::signal<void>& signal_instrument_changed();
70	schoenebeck	1225
71	schoenebeck	1339	sigc::signal<void, gig::Instrument*>& signal_instrument_struct_to_be_changed();
72			sigc::signal<void, gig::Instrument*>& signal_instrument_struct_changed();
73	schoenebeck	1322
74	schoenebeck	1339	sigc::signal<void, gig::Region*>& signal_region_to_be_changed();
75			sigc::signal<void, gig::Region*>& signal_region_changed_signal();
76	schoenebeck	1322
77	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/>& signal_keyboard_key_hit();
78			sigc::signal<void, int/key/, int/velocity/>& signal_keyboard_key_released();
79
80	schoenebeck	1225	gig::Region* get_region() { return region; }
81	schoenebeck	2695	void set_region(gig::Region* region);
82	schoenebeck	1225
83	schoenebeck	1654	void on_note_on_event(int key, int velocity);
84			void on_note_off_event(int key, int velocity);
85
86	schoenebeck	1661	Gtk::HBox m_VirtKeybPropsBox;
87
88	schoenebeck	1225	protected:
89	persson	2169	#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) \|\| GTKMM_MAJOR_VERSION < 2
90	schoenebeck	1225	virtual bool on_expose_event(GdkEventExpose* e);
91	persson	2246	#else
92			virtual bool on_draw(const Cairo::RefPtr<Cairo::Context>& cr);
93	persson	2169	#endif
94	schoenebeck	1225	virtual bool on_button_press_event(GdkEventButton* event);
95			virtual bool on_button_release_event(GdkEventButton* event);
96			virtual bool on_motion_notify_event(GdkEventMotion* event);
97
98			gig::Region* get_region(int key);
99
100	persson	2169	Gdk::RGBA activeKeyColor, red, grey1, white, black;
101	schoenebeck	1225
102	persson	1261	sigc::signal<void> region_selected;
103			sigc::signal<void> instrument_changed;
104	schoenebeck	1225
105	schoenebeck	1322	sigc::signal<void, gig::Instrument*> instrument_struct_to_be_changed_signal;
106			sigc::signal<void, gig::Instrument*> instrument_struct_changed_signal;
107
108			sigc::signal<void, gig::Region*> region_to_be_changed_signal;
109			sigc::signal<void, gig::Region*> region_changed_signal;
110
111	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/> keyboard_key_hit_signal;
112			sigc::signal<void, int/key/, int/velocity/> keyboard_key_released_signal;
113
114	schoenebeck	1225	gig::Instrument* instrument;
115			gig::Region* region;
116	persson	1623	SortedRegions regions;
117	schoenebeck	1225
118	schoenebeck	1654	bool is_black_key(int key);
119	persson	2246	void draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
120			int clip_low, int clip_high);
121			void draw_regions(const Cairo::RefPtr<Cairo::Context>& cr,
122			int clip_low, int clip_high);
123			void draw_key(const Cairo::RefPtr<Cairo::Context>& cr, int key);
124			void draw_digit(const Cairo::RefPtr<Cairo::Context>& cr, int key);
125	persson	1262	void motion_resize_region(int x, int y);
126			void motion_move_region(int x, int y);
127	persson	2246	void update_after_resize();
128			void update_after_move(int pos);
129			void invalidate_key(int key);
130	persson	1262
131	persson	2246	// returns the leftmost pixel of a key
132			int key_to_x(double k, int w) const {
133			return int(k * w / 128.0 + 0.5);
134			}
135
136			// returns the key given a pixel
137			int x_to_key(double x, int w) const {
138			return int(x / w * 128.0);
139			}
140
141			// returns the key given a pixel. If the pixel is the border
142			// between two keys, the key to the r�ght is always returned.
143			int x_to_key_right(double x, int w) const {
144			return int(ceil((x + 0.5) / w * 128.0)) - 1;
145			}
146
147	schoenebeck	1225	// information needed during a resize
148			struct {
149			bool active;
150			enum {
151			undecided,
152			moving_high_limit,
153			moving_low_limit
154			} mode;
155			int pos;
156			int min;
157			int max;
158			gig::Region* region;
159			gig::Region* prev_region;
160			} resize;
161
162	persson	1262	// information needed during a region move
163			struct {
164			bool active;
165	persson	2246	int offset;
166	persson	1262	} move;
167
168	schoenebeck	1225	bool cursor_is_resize;
169			bool is_in_resize_zone(double x, double y);
170
171			int h1;
172
173			Gtk::Menu* popup_menu_inside_region;
174			Gtk::Menu* popup_menu_outside_region;
175			void show_region_properties();
176			void add_region();
177			void delete_region();
178			void manage_dimensions();
179			void on_dimension_manager_changed();
180			int new_region_pos;
181
182			Glib::RefPtr<Gtk::ActionGroup> actionGroup;
183			Glib::RefPtr<Gtk::UIManager> uiManager;
184
185	persson	2246	// properties of the virtual keyboard
186	schoenebeck	1661	ChoiceEntry<virt_keyboard_mode_t> m_VirtKeybModeChoice;
187			Gtk::Label m_VirtKeybVelocityLabelDescr;
188			Gtk::Label m_VirtKeybVelocityLabel;
189			Gtk::Label m_VirtKeybOffVelocityLabelDescr;
190			Gtk::Label m_VirtKeybOffVelocityLabel;
191			int currentActiveKey;
192	persson	2246	bool key_pressed[128];
193	schoenebeck	1661
194	schoenebeck	1225	DimensionManager dimensionManager;
195			};
196
197			#endif