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 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);

    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	3123	void select_next_region();
83			void select_prev_region();
84	schoenebeck	1225
85	schoenebeck	1654	void on_note_on_event(int key, int velocity);
86			void on_note_off_event(int key, int velocity);
87
88	schoenebeck	1661	Gtk::HBox m_VirtKeybPropsBox;
89
90	schoenebeck	1225	protected:
91	persson	2169	#if (GTKMM_MAJOR_VERSION == 2 && GTKMM_MINOR_VERSION < 90) \|\| GTKMM_MAJOR_VERSION < 2
92	schoenebeck	1225	virtual bool on_expose_event(GdkEventExpose* e);
93	persson	2246	#else
94			virtual bool on_draw(const Cairo::RefPtr<Cairo::Context>& cr);
95	persson	2169	#endif
96	schoenebeck	1225	virtual bool on_button_press_event(GdkEventButton* event);
97			virtual bool on_button_release_event(GdkEventButton* event);
98			virtual bool on_motion_notify_event(GdkEventMotion* event);
99
100			gig::Region* get_region(int key);
101
102	persson	2169	Gdk::RGBA activeKeyColor, red, grey1, white, black;
103	schoenebeck	1225
104	persson	1261	sigc::signal<void> region_selected;
105			sigc::signal<void> instrument_changed;
106	schoenebeck	1225
107	schoenebeck	1322	sigc::signal<void, gig::Instrument*> instrument_struct_to_be_changed_signal;
108			sigc::signal<void, gig::Instrument*> instrument_struct_changed_signal;
109
110			sigc::signal<void, gig::Region*> region_to_be_changed_signal;
111			sigc::signal<void, gig::Region*> region_changed_signal;
112
113	schoenebeck	1660	sigc::signal<void, int/key/, int/velocity/> keyboard_key_hit_signal;
114			sigc::signal<void, int/key/, int/velocity/> keyboard_key_released_signal;
115
116	schoenebeck	1225	gig::Instrument* instrument;
117			gig::Region* region;
118	persson	1623	SortedRegions regions;
119	schoenebeck	1225
120	schoenebeck	1654	bool is_black_key(int key);
121	persson	2246	void draw_keyboard(const Cairo::RefPtr<Cairo::Context>& cr,
122			int clip_low, int clip_high);
123			void draw_regions(const Cairo::RefPtr<Cairo::Context>& cr,
124			int clip_low, int clip_high);
125			void draw_key(const Cairo::RefPtr<Cairo::Context>& cr, int key);
126			void draw_digit(const Cairo::RefPtr<Cairo::Context>& cr, int key);
127	persson	1262	void motion_resize_region(int x, int y);
128			void motion_move_region(int x, int y);
129	persson	2246	void update_after_resize();
130			void update_after_move(int pos);
131			void invalidate_key(int key);
132	persson	1262
133	persson	2246	// returns the leftmost pixel of a key
134			int key_to_x(double k, int w) const {
135			return int(k * w / 128.0 + 0.5);
136			}
137
138			// returns the key given a pixel
139			int x_to_key(double x, int w) const {
140			return int(x / w * 128.0);
141			}
142
143			// returns the key given a pixel. If the pixel is the border
144			// between two keys, the key to the r�ght is always returned.
145			int x_to_key_right(double x, int w) const {
146			return int(ceil((x + 0.5) / w * 128.0)) - 1;
147			}
148
149	schoenebeck	1225	// information needed during a resize
150			struct {
151			bool active;
152			enum {
153			undecided,
154			moving_high_limit,
155			moving_low_limit
156			} mode;
157			int pos;
158			int min;
159			int max;
160			gig::Region* region;
161			gig::Region* prev_region;
162			} resize;
163
164	persson	1262	// information needed during a region move
165			struct {
166			bool active;
167	persson	2246	int offset;
168	persson	1262	} move;
169
170	schoenebeck	1225	bool cursor_is_resize;
171			bool is_in_resize_zone(double x, double y);
172
173			int h1;
174
175			Gtk::Menu* popup_menu_inside_region;
176			Gtk::Menu* popup_menu_outside_region;
177			void show_region_properties();
178			void add_region();
179			void delete_region();
180			void manage_dimensions();
181			void on_dimension_manager_changed();
182			int new_region_pos;
183
184			Glib::RefPtr<Gtk::ActionGroup> actionGroup;
185			Glib::RefPtr<Gtk::UIManager> uiManager;
186
187	persson	2246	// properties of the virtual keyboard
188	schoenebeck	1661	ChoiceEntry<virt_keyboard_mode_t> m_VirtKeybModeChoice;
189			Gtk::Label m_VirtKeybVelocityLabelDescr;
190			Gtk::Label m_VirtKeybVelocityLabel;
191			Gtk::Label m_VirtKeybOffVelocityLabelDescr;
192			Gtk::Label m_VirtKeybOffVelocityLabel;
193			int currentActiveKey;
194	persson	2246	bool key_pressed[128];
195	schoenebeck	1661
196	schoenebeck	1225	DimensionManager dimensionManager;
197			};
198
199			#endif