release0_0_3/src/regionchooser.cpp

/*
 * Copyright (C) 2006, 2007 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.
 */

#include "regionchooser.h"
#include <gdkmm/cursor.h>
#include <gtkmm/stock.h>
#include <libintl.h>

#define _(String) gettext(String)

RegionChooser::RegionChooser()
{
    Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap();

    black = Gdk::Color("black");
    white = Gdk::Color("white");
    red = Gdk::Color("#8070ff");
    blue = Gdk::Color("#c098ff");
    green = Gdk::Color("#a088ff");
    grey1 = Gdk::Color("red");

    colormap->alloc_color(black);
    colormap->alloc_color(white);
    colormap->alloc_color(red);
    colormap->alloc_color(blue);
    colormap->alloc_color(green);
    colormap->alloc_color(grey1);
    instrument = 0;
    region = 0;
    resize.active = false;
    cursor_is_resize = false;
    h1 = 20;
    width = 800;

    actionGroup = Gtk::ActionGroup::create();
    actionGroup->add(Gtk::Action::create("Properties",
                                         Gtk::Stock::PROPERTIES),
                     sigc::mem_fun(*this,
                                   &RegionChooser::show_region_properties));
    actionGroup->add(Gtk::Action::create("Remove", Gtk::Stock::REMOVE),
                     sigc::mem_fun(*this, &RegionChooser::delete_region));
    actionGroup->add(Gtk::Action::create("Add", Gtk::Stock::ADD),
                     sigc::mem_fun(*this, &RegionChooser::add_region));
    actionGroup->add(Gtk::Action::create("Dimensions", _("Dimensions...")),
                     sigc::mem_fun(*this, &RegionChooser::manage_dimensions));

    uiManager = Gtk::UIManager::create();
    uiManager->insert_action_group(actionGroup);
    Glib::ustring ui_info =
        "<ui>"
        "  <popup name='PopupMenuInsideRegion'>"
        "    <menuitem action='Properties'/>"
        "    <menuitem action='Dimensions'/>"
        "    <menuitem action='Remove'/>"
        "  </popup>"
        "  <popup name='PopupMenuOutsideRegion'>"
        "    <menuitem action='Add'/>"
        "  </popup>"
        "</ui>";
    uiManager->add_ui_from_string(ui_info);

    popup_menu_inside_region = dynamic_cast<Gtk::Menu*>(
        uiManager->get_widget("/PopupMenuInsideRegion"));
    popup_menu_outside_region = dynamic_cast<Gtk::Menu*>(
        uiManager->get_widget("/PopupMenuOutsideRegion"));

    add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK |
               Gdk::POINTER_MOTION_MASK | Gdk::POINTER_MOTION_HINT_MASK);

    dimensionManager.articulation_changed_signal.connect(
        sigc::mem_fun(*this, &RegionChooser::on_dimension_manager_changed)
    );
}

RegionChooser::~RegionChooser()
{
}

void RegionChooser::on_realize()
{
    // We need to call the base on_realize()
    Gtk::DrawingArea::on_realize();

    // Now we can allocate any additional resources we need
    Glib::RefPtr<Gdk::Window> window = get_window();
    gc = Gdk::GC::create(window);
    window->clear();
}

bool RegionChooser::on_expose_event(GdkEventExpose* event)
{
    Glib::RefPtr<Gdk::Window> window = get_window();
    window->clear();
    const int h = 40;
    const int w = width - 1;
    const int bh = int(h * 0.55);

    Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
    Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();

    window->draw_rectangle(black, false, 0, h1, w, h - 1);
    window->draw_rectangle(white, true, 1, h1 + 1, w - 1, h - 2);
    for (int i = 0 ; i < 128 ; i++) {
        int note = (i + 3) % 12;
        int x = int(w * i / 128.0 + 0.5);

        if (note == 1 || note == 4 || note == 6 || note == 9 || note == 11) {
            int x2 = int(w * (i + 0.5) / 128.0 + 0.5);
            window->draw_line(black, x2, h1 + bh, x2, h1 + h);

            int x3 = int(w * (i + 1) / 128.0 + 0.5);
            window->draw_rectangle(black, true, x, h1 + 1, x3 - x + 1, bh);
        } else if (note == 3 || note == 8) {
            window->draw_line(black, x, h1 + 1, x, h1 + h);
        }
    }

    if (instrument) {
        int i = 0;
        gig::Region *nextRegion;
        int x3 = -1;
        for (gig::Region *r = instrument->GetFirstRegion() ;
             r ;
             r = nextRegion) {

            if (x3 < 0) x3 = int(w * (r->KeyRange.low) / 128.0 + 0.5);
            nextRegion = instrument->GetNextRegion();
            if (!nextRegion || r->KeyRange.high + 1 != nextRegion->KeyRange.low) {
                int x2 = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
                window->draw_line(black, x3, 0, x2, 0);
                window->draw_line(black, x3, h1 - 1, x2, h1 - 1);
                window->draw_line(black, x2, 1, x2, h1 - 2);
                window->draw_rectangle(white, true, x3 + 1, 1, x2 - x3 - 1, h1 - 2);
                x3 = -1;
            }
            i++;
        }

        for (gig::Region *r = instrument->GetFirstRegion() ;
             r ;
             r = instrument->GetNextRegion()) {
            int x = int(w * (r->KeyRange.low) / 128.0 + 0.5);
            window->draw_line(black, x, 1, x, h1 - 2);
        }

        if (region) {
            int x1 = int(w * (region->KeyRange.low) / 128.0 + 0.5);
            int x2 = int(w * (region->KeyRange.high + 1) / 128.0 + 0.5);
            gc->set_foreground(red);
            window->draw_rectangle(gc, true, x1 + 1, 1, x2 - x1 - 1, h1 - 2);
        }
    }
    return true;
}


void RegionChooser::on_size_request(GtkRequisition* requisition)
{
    *requisition = GtkRequisition();
    requisition->height = 40 + 20;
    requisition->width = 500;
}


// not used
void RegionChooser::draw_region(int from, int to, const Gdk::Color& color)
{
    const int h = 40;
    const int w = width;
    const int bh = int(h * 0.55);

    Glib::RefPtr<Gdk::Window> window = get_window();
    gc->set_foreground(color);

    for (int i = from ; i < to ; i++) {
        int note = (i + 3) % 12;
        int x = int(w * i / 128.0 + 0.5) + 1;
        int x2 = int(w * (i + 1.5) / 128.0 + 0.5);
        int x3 = int(w * (i + 1) / 128.0 + 0.5);
        int x4 = int(w * (i - 0.5) / 128 + 0.5) + 1;
        int w1 = x3 - x;
        switch (note) {
        case 0: case 5: case 10:
            window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
            window->draw_rectangle(gc, true, x4, h1 + bh + 1, x2 - x4, h - bh - 2);
            break;
        case 2: case 7:
            window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
            window->draw_rectangle(gc, true, x4, h1 + bh + 1, x3 - x4, h - bh - 2);
            break;
        case 3: case 8:
            window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
            window->draw_rectangle(gc, true, x, h1 + bh + 1, x2 - x, h - bh - 2);
            break;
        default:
            window->draw_rectangle(gc, true, x, h1 + 1, w1, bh - 1);
            break;
        }
    }
}

void RegionChooser::set_instrument(gig::Instrument* instrument)
{
    this->instrument = instrument;
    region = instrument ? instrument->GetFirstRegion() : 0;
    queue_draw();
    sel_changed_signal.emit();
}

bool RegionChooser::on_button_release_event(GdkEventButton* event)
{
    if (resize.active) {
        get_window()->pointer_ungrab(event->time);
        resize.active = false;

        if (resize.mode == resize.moving_high_limit) {
            resize.region->KeyRange.high = resize.pos - 1;
        } else if (resize.mode == resize.moving_low_limit) {
            resize.region->KeyRange.low = resize.pos;
        }

        if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
            get_window()->set_cursor();
            cursor_is_resize = false;
        }
    }
    return true;
}

bool RegionChooser::on_button_press_event(GdkEventButton* event)
{
    if (!instrument) return true;

    int k = int(event->x / (width - 1) * 128.0);

    if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
        gig::Region* r = get_region(k);
        if (r) {
            region = r;
            queue_draw();
            sel_changed_signal.emit();
            popup_menu_inside_region->popup(event->button, event->time);
        } else {
            new_region_pos = k;
            popup_menu_outside_region->popup(event->button, event->time);
        }
    } else {
        if (is_in_resize_zone(event->x, event->y)) {
            Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
            get_window()->pointer_grab(false,
                                       Gdk::BUTTON_RELEASE_MASK |
                                       Gdk::POINTER_MOTION_MASK |
                                       Gdk::POINTER_MOTION_HINT_MASK,
                                       double_arrow, event->time);
            resize.active = true;
        } else {
            gig::Region* r = get_region(k);
            if (r) {
                region = r;
                queue_draw();
                sel_changed_signal.emit();
            }
        }
    }
    return true;
}

gig::Region* RegionChooser::get_region(int key)
{
    for (gig::Region *r = instrument->GetFirstRegion() ; r ;
         r = instrument->GetNextRegion()) {
        if (key < r->KeyRange.low) return 0;
        if (key <= r->KeyRange.high) return r;
    }
    return 0;
}

bool RegionChooser::on_motion_notify_event(GdkEventMotion* event)
{
    const int w = width - 1;
    Glib::RefPtr<Gdk::Window> window = get_window();
    int x, y;
    Gdk::ModifierType state = Gdk::ModifierType(0);
    window->get_pointer(x, y, state);
    if (resize.active) {
        int k = int(double(x) / w * 128.0 + 0.5);

        if (k < resize.min) k = resize.min;
        else if (k > resize.max) k = resize.max;

        if (k != resize.pos) {
            if (resize.mode == resize.undecided) {
                if (k < resize.pos) {
                    // edit high limit of prev_region
                    resize.max = resize.region->KeyRange.low;
                    resize.region = resize.prev_region;
                    resize.mode = resize.moving_high_limit;
                } else {
                    // edit low limit of region
                    resize.min = resize.prev_region->KeyRange.high + 1;
                    resize.mode = resize.moving_low_limit;
                }
            }
            Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
            Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
            if (region == resize.region) {
                gc->set_foreground(red);
                white = gc;
            }
            Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL);
            int prevx = int(w * resize.pos / 128.0 + 0.5);
            x = int(w * k / 128.0 + 0.5);

            if (resize.mode == resize.moving_high_limit) {
                if (k > resize.pos) {
                    window->draw_rectangle(white, true, prevx, 1, x - prevx, h1 - 2);
                    window->draw_line(black, prevx, 0, x, 0);
                    window->draw_line(black, prevx, h1 - 1, x, h1 - 1);
                } else {
                    int xx = ((resize.pos == resize.max && resize.max != 128) ? 1 : 0);
                    window->draw_rectangle(bg, true, x + 1, 0, prevx - x - xx, h1);
                }
            } else {
                if (k < resize.pos) {
                    window->draw_rectangle(white, true, x + 1, 1, prevx - x, h1 - 2);
                    window->draw_line(black, x, 0, prevx, 0);
                    window->draw_line(black, x, h1 - 1, prevx, h1 - 1);
                } else {
                    int xx = ((resize.pos == resize.min && resize.min != 0) ? 1 : 0);
                    window->draw_rectangle(bg, true, prevx + xx, 0, x - prevx - xx, h1);
                }
            }
            window->draw_line(black, x, 1, x, h1 - 2);
            resize.pos = k;
        }
    } else {
        if (is_in_resize_zone(x, y)) {
            if (!cursor_is_resize) {
                Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
                window->set_cursor(double_arrow);
                cursor_is_resize = true;
            }
        } else if (cursor_is_resize) {
            window->set_cursor();
            cursor_is_resize = false;
        }
    }

    return true;
}

bool RegionChooser::is_in_resize_zone(double x, double y) {
    const int w = width - 1;

    if (instrument && y >= 0 && y <= h1) {
        gig::Region* prev_region = 0;
        gig::Region* next_region;
        for (gig::Region* r = instrument->GetFirstRegion() ; r ; r = next_region) {
            next_region = instrument->GetNextRegion();

            int lo = int(w * (r->KeyRange.low) / 128.0 + 0.5);
            if (x <= lo - 2) break;
            if (x < lo + 2) {
                resize.region = r;
                resize.pos = r->KeyRange.low;
                resize.max = r->KeyRange.high;

                if (prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low) {
                    // we don't know yet if it's the high limit of
                    // prev_region or the low limit of r that's going
                    // to be edited
                    resize.mode = resize.undecided;
                    resize.min = prev_region->KeyRange.low + 1;
                    resize.prev_region = prev_region;
                    return true;
                }

                // edit low limit
                resize.mode = resize.moving_low_limit;
                resize.min = prev_region ? prev_region->KeyRange.high + 1 : 0;
                return true;
            }
            if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low) {
                int hi = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
                if (x <= hi - 2) break;
                if (x < hi + 2) {
                    // edit high limit
                    resize.region = r;
                    resize.pos = r->KeyRange.high + 1;
                    resize.mode = resize.moving_high_limit;
                    resize.min = r->KeyRange.low + 1;
                    resize.max = next_region ? next_region->KeyRange.low : 128;
                    return true;
                }
            }
            prev_region = r;
        }
    }
    return false;
}

sigc::signal<void> RegionChooser::signal_sel_changed()
{
    return sel_changed_signal;
}

void RegionChooser::show_region_properties()
{
}

void RegionChooser::add_region()
{
    gig::Region* r;
    for (r = instrument->GetFirstRegion() ; r ; r = instrument->GetNextRegion()) {
        if (r->KeyRange.low > new_region_pos) break;
    }

    region = instrument->AddRegion();
    region->KeyRange.low = region->KeyRange.high = new_region_pos;

    instrument->MoveRegion(region, r);
    queue_draw();
    sel_changed_signal.emit();
}

void RegionChooser::delete_region()
{
    instrument->DeleteRegion(region);
    region = 0;
    queue_draw();
    sel_changed_signal.emit();
}

void RegionChooser::manage_dimensions()
{
    gig::Region* region = get_region();
    if (!region) return;
    dimensionManager.show(region);
}

void RegionChooser::on_dimension_manager_changed() {
    sel_changed_signal.emit();
}
1	persson	1052	/*
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	persson	1103	#include <gtkmm/stock.h>
23	schoenebeck	1107	#include <libintl.h>
24	persson	1052
25	schoenebeck	1107	#define _(String) gettext(String)
26
27	persson	1052	RegionChooser::RegionChooser()
28			{
29			Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap();
30
31			black = Gdk::Color("black");
32			white = Gdk::Color("white");
33			red = Gdk::Color("#8070ff");
34			blue = Gdk::Color("#c098ff");
35			green = Gdk::Color("#a088ff");
36			grey1 = Gdk::Color("red");
37
38			colormap->alloc_color(black);
39			colormap->alloc_color(white);
40			colormap->alloc_color(red);
41			colormap->alloc_color(blue);
42			colormap->alloc_color(green);
43			colormap->alloc_color(grey1);
44			instrument = 0;
45			region = 0;
46	persson	1090	resize.active = false;
47			cursor_is_resize = false;
48			h1 = 20;
49			width = 800;
50	persson	1052
51	persson	1103	actionGroup = Gtk::ActionGroup::create();
52			actionGroup->add(Gtk::Action::create("Properties",
53			Gtk::Stock::PROPERTIES),
54			sigc::mem_fun(*this,
55			&RegionChooser::show_region_properties));
56			actionGroup->add(Gtk::Action::create("Remove", Gtk::Stock::REMOVE),
57			sigc::mem_fun(*this, &RegionChooser::delete_region));
58			actionGroup->add(Gtk::Action::create("Add", Gtk::Stock::ADD),
59			sigc::mem_fun(*this, &RegionChooser::add_region));
60	schoenebeck	1107	actionGroup->add(Gtk::Action::create("Dimensions", _("Dimensions...")),
61			sigc::mem_fun(*this, &RegionChooser::manage_dimensions));
62	persson	1103
63			uiManager = Gtk::UIManager::create();
64			uiManager->insert_action_group(actionGroup);
65			Glib::ustring ui_info =
66			"<ui>"
67			" <popup name='PopupMenuInsideRegion'>"
68			" <menuitem action='Properties'/>"
69	schoenebeck	1107	" <menuitem action='Dimensions'/>"
70	persson	1103	" <menuitem action='Remove'/>"
71			" </popup>"
72			" <popup name='PopupMenuOutsideRegion'>"
73			" <menuitem action='Add'/>"
74			" </popup>"
75			"</ui>";
76			uiManager->add_ui_from_string(ui_info);
77
78			popup_menu_inside_region = dynamic_cast<Gtk::Menu*>(
79			uiManager->get_widget("/PopupMenuInsideRegion"));
80			popup_menu_outside_region = dynamic_cast<Gtk::Menu*>(
81			uiManager->get_widget("/PopupMenuOutsideRegion"));
82
83			add_events(Gdk::BUTTON_PRESS_MASK \| Gdk::BUTTON_RELEASE_MASK \|
84			Gdk::POINTER_MOTION_MASK \| Gdk::POINTER_MOTION_HINT_MASK);
85	schoenebeck	1111
86			dimensionManager.articulation_changed_signal.connect(
87			sigc::mem_fun(*this, &RegionChooser::on_dimension_manager_changed)
88			);
89	persson	1052	}
90
91			RegionChooser::~RegionChooser()
92			{
93			}
94
95			void RegionChooser::on_realize()
96			{
97			// We need to call the base on_realize()
98			Gtk::DrawingArea::on_realize();
99
100			// Now we can allocate any additional resources we need
101			Glib::RefPtr<Gdk::Window> window = get_window();
102			gc = Gdk::GC::create(window);
103			window->clear();
104			}
105
106			bool RegionChooser::on_expose_event(GdkEventExpose* event)
107			{
108			Glib::RefPtr<Gdk::Window> window = get_window();
109			window->clear();
110			const int h = 40;
111	persson	1090	const int w = width - 1;
112	persson	1052	const int bh = int(h * 0.55);
113
114			Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
115			Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
116
117			window->draw_rectangle(black, false, 0, h1, w, h - 1);
118			window->draw_rectangle(white, true, 1, h1 + 1, w - 1, h - 2);
119			for (int i = 0 ; i < 128 ; i++) {
120			int note = (i + 3) % 12;
121			int x = int(w * i / 128.0 + 0.5);
122
123			if (note == 1 \|\| note == 4 \|\| note == 6 \|\| note == 9 \|\| note == 11) {
124			int x2 = int(w * (i + 0.5) / 128.0 + 0.5);
125			window->draw_line(black, x2, h1 + bh, x2, h1 + h);
126
127			int x3 = int(w * (i + 1) / 128.0 + 0.5);
128			window->draw_rectangle(black, true, x, h1 + 1, x3 - x + 1, bh);
129			} else if (note == 3 \|\| note == 8) {
130			window->draw_line(black, x, h1 + 1, x, h1 + h);
131			}
132			}
133
134			if (instrument) {
135			int i = 0;
136			gig::Region *nextRegion;
137			int x3 = -1;
138			for (gig::Region *r = instrument->GetFirstRegion() ;
139			r ;
140			r = nextRegion) {
141
142			if (x3 < 0) x3 = int(w * (r->KeyRange.low) / 128.0 + 0.5);
143			nextRegion = instrument->GetNextRegion();
144			if (!nextRegion \|\| r->KeyRange.high + 1 != nextRegion->KeyRange.low) {
145			int x2 = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
146			window->draw_line(black, x3, 0, x2, 0);
147			window->draw_line(black, x3, h1 - 1, x2, h1 - 1);
148			window->draw_line(black, x2, 1, x2, h1 - 2);
149			window->draw_rectangle(white, true, x3 + 1, 1, x2 - x3 - 1, h1 - 2);
150			x3 = -1;
151			}
152			i++;
153			}
154
155			for (gig::Region *r = instrument->GetFirstRegion() ;
156			r ;
157			r = instrument->GetNextRegion()) {
158			int x = int(w * (r->KeyRange.low) / 128.0 + 0.5);
159			window->draw_line(black, x, 1, x, h1 - 2);
160			}
161
162			if (region) {
163			int x1 = int(w * (region->KeyRange.low) / 128.0 + 0.5);
164			int x2 = int(w * (region->KeyRange.high + 1) / 128.0 + 0.5);
165			gc->set_foreground(red);
166			window->draw_rectangle(gc, true, x1 + 1, 1, x2 - x1 - 1, h1 - 2);
167			}
168			}
169			return true;
170			}
171
172
173			void RegionChooser::on_size_request(GtkRequisition* requisition)
174			{
175			*requisition = GtkRequisition();
176			requisition->height = 40 + 20;
177			requisition->width = 500;
178			}
179
180
181	persson	1090	// not used
182	persson	1052	void RegionChooser::draw_region(int from, int to, const Gdk::Color& color)
183			{
184			const int h = 40;
185	persson	1090	const int w = width;
186	persson	1052	const int bh = int(h * 0.55);
187
188			Glib::RefPtr<Gdk::Window> window = get_window();
189			gc->set_foreground(color);
190
191			for (int i = from ; i < to ; i++) {
192			int note = (i + 3) % 12;
193			int x = int(w * i / 128.0 + 0.5) + 1;
194			int x2 = int(w * (i + 1.5) / 128.0 + 0.5);
195			int x3 = int(w * (i + 1) / 128.0 + 0.5);
196			int x4 = int(w * (i - 0.5) / 128 + 0.5) + 1;
197			int w1 = x3 - x;
198			switch (note) {
199			case 0: case 5: case 10:
200			window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
201			window->draw_rectangle(gc, true, x4, h1 + bh + 1, x2 - x4, h - bh - 2);
202			break;
203			case 2: case 7:
204			window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
205			window->draw_rectangle(gc, true, x4, h1 + bh + 1, x3 - x4, h - bh - 2);
206			break;
207			case 3: case 8:
208			window->draw_rectangle(gc, true, x, h1 + 1, w1, bh);
209			window->draw_rectangle(gc, true, x, h1 + bh + 1, x2 - x, h - bh - 2);
210			break;
211			default:
212			window->draw_rectangle(gc, true, x, h1 + 1, w1, bh - 1);
213			break;
214			}
215			}
216			}
217
218			void RegionChooser::set_instrument(gig::Instrument* instrument)
219			{
220			this->instrument = instrument;
221	persson	1104	region = instrument ? instrument->GetFirstRegion() : 0;
222	persson	1052	queue_draw();
223			sel_changed_signal.emit();
224			}
225
226	persson	1090	bool RegionChooser::on_button_release_event(GdkEventButton* event)
227			{
228			if (resize.active) {
229			get_window()->pointer_ungrab(event->time);
230			resize.active = false;
231
232			if (resize.mode == resize.moving_high_limit) {
233			resize.region->KeyRange.high = resize.pos - 1;
234			} else if (resize.mode == resize.moving_low_limit) {
235			resize.region->KeyRange.low = resize.pos;
236			}
237
238			if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) {
239			get_window()->set_cursor();
240			cursor_is_resize = false;
241			}
242			}
243			return true;
244			}
245
246	persson	1052	bool RegionChooser::on_button_press_event(GdkEventButton* event)
247			{
248	persson	1103	if (!instrument) return true;
249
250			int k = int(event->x / (width - 1) * 128.0);
251
252			if (event->type == GDK_BUTTON_PRESS && event->button == 3) {
253			gig::Region* r = get_region(k);
254			if (r) {
255			region = r;
256			queue_draw();
257			sel_changed_signal.emit();
258			popup_menu_inside_region->popup(event->button, event->time);
259			} else {
260			new_region_pos = k;
261			popup_menu_outside_region->popup(event->button, event->time);
262			}
263			} else {
264	persson	1090	if (is_in_resize_zone(event->x, event->y)) {
265			Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
266			get_window()->pointer_grab(false,
267			Gdk::BUTTON_RELEASE_MASK \|
268			Gdk::POINTER_MOTION_MASK \|
269			Gdk::POINTER_MOTION_HINT_MASK,
270			double_arrow, event->time);
271			resize.active = true;
272			} else {
273	persson	1103	gig::Region* r = get_region(k);
274			if (r) {
275			region = r;
276			queue_draw();
277			sel_changed_signal.emit();
278	persson	1052	}
279			}
280			}
281	persson	1103	return true;
282	persson	1052	}
283
284	persson	1103	gig::Region* RegionChooser::get_region(int key)
285			{
286			for (gig::Region *r = instrument->GetFirstRegion() ; r ;
287			r = instrument->GetNextRegion()) {
288			if (key < r->KeyRange.low) return 0;
289			if (key <= r->KeyRange.high) return r;
290			}
291			return 0;
292			}
293
294	persson	1052	bool RegionChooser::on_motion_notify_event(GdkEventMotion* event)
295			{
296	persson	1090	const int w = width - 1;
297			Glib::RefPtr<Gdk::Window> window = get_window();
298			int x, y;
299			Gdk::ModifierType state = Gdk::ModifierType(0);
300			window->get_pointer(x, y, state);
301			if (resize.active) {
302			int k = int(double(x) / w * 128.0 + 0.5);
303
304			if (k < resize.min) k = resize.min;
305			else if (k > resize.max) k = resize.max;
306
307			if (k != resize.pos) {
308			if (resize.mode == resize.undecided) {
309			if (k < resize.pos) {
310			// edit high limit of prev_region
311			resize.max = resize.region->KeyRange.low;
312			resize.region = resize.prev_region;
313			resize.mode = resize.moving_high_limit;
314			} else {
315			// edit low limit of region
316			resize.min = resize.prev_region->KeyRange.high + 1;
317			resize.mode = resize.moving_low_limit;
318			}
319			}
320			Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc();
321			Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc();
322			if (region == resize.region) {
323			gc->set_foreground(red);
324			white = gc;
325			}
326			Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL);
327			int prevx = int(w * resize.pos / 128.0 + 0.5);
328			x = int(w * k / 128.0 + 0.5);
329
330			if (resize.mode == resize.moving_high_limit) {
331			if (k > resize.pos) {
332			window->draw_rectangle(white, true, prevx, 1, x - prevx, h1 - 2);
333			window->draw_line(black, prevx, 0, x, 0);
334			window->draw_line(black, prevx, h1 - 1, x, h1 - 1);
335			} else {
336			int xx = ((resize.pos == resize.max && resize.max != 128) ? 1 : 0);
337			window->draw_rectangle(bg, true, x + 1, 0, prevx - x - xx, h1);
338			}
339			} else {
340			if (k < resize.pos) {
341			window->draw_rectangle(white, true, x + 1, 1, prevx - x, h1 - 2);
342			window->draw_line(black, x, 0, prevx, 0);
343			window->draw_line(black, x, h1 - 1, prevx, h1 - 1);
344			} else {
345			int xx = ((resize.pos == resize.min && resize.min != 0) ? 1 : 0);
346			window->draw_rectangle(bg, true, prevx + xx, 0, x - prevx - xx, h1);
347			}
348			}
349			window->draw_line(black, x, 1, x, h1 - 2);
350			resize.pos = k;
351	persson	1052	}
352	persson	1090	} else {
353			if (is_in_resize_zone(x, y)) {
354			if (!cursor_is_resize) {
355			Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW);
356			window->set_cursor(double_arrow);
357			cursor_is_resize = true;
358			}
359			} else if (cursor_is_resize) {
360			window->set_cursor();
361			cursor_is_resize = false;
362			}
363	persson	1052	}
364	persson	1090
365			return true;
366	persson	1052	}
367
368	persson	1090	bool RegionChooser::is_in_resize_zone(double x, double y) {
369			const int w = width - 1;
370
371			if (instrument && y >= 0 && y <= h1) {
372			gig::Region* prev_region = 0;
373			gig::Region* next_region;
374			for (gig::Region* r = instrument->GetFirstRegion() ; r ; r = next_region) {
375			next_region = instrument->GetNextRegion();
376
377			int lo = int(w * (r->KeyRange.low) / 128.0 + 0.5);
378			if (x <= lo - 2) break;
379			if (x < lo + 2) {
380			resize.region = r;
381			resize.pos = r->KeyRange.low;
382			resize.max = r->KeyRange.high;
383
384			if (prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low) {
385			// we don't know yet if it's the high limit of
386			// prev_region or the low limit of r that's going
387			// to be edited
388			resize.mode = resize.undecided;
389			resize.min = prev_region->KeyRange.low + 1;
390			resize.prev_region = prev_region;
391			return true;
392			}
393
394			// edit low limit
395			resize.mode = resize.moving_low_limit;
396			resize.min = prev_region ? prev_region->KeyRange.high + 1 : 0;
397			return true;
398			}
399			if (!next_region \|\| r->KeyRange.high + 1 != next_region->KeyRange.low) {
400			int hi = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5);
401			if (x <= hi - 2) break;
402			if (x < hi + 2) {
403			// edit high limit
404			resize.region = r;
405			resize.pos = r->KeyRange.high + 1;
406			resize.mode = resize.moving_high_limit;
407			resize.min = r->KeyRange.low + 1;
408			resize.max = next_region ? next_region->KeyRange.low : 128;
409			return true;
410			}
411			}
412			prev_region = r;
413			}
414			}
415			return false;
416			}
417
418	persson	1052	sigc::signal<void> RegionChooser::signal_sel_changed()
419			{
420			return sel_changed_signal;
421			}
422	persson	1103
423			void RegionChooser::show_region_properties()
424			{
425			}
426
427			void RegionChooser::add_region()
428			{
429			gig::Region* r;
430			for (r = instrument->GetFirstRegion() ; r ; r = instrument->GetNextRegion()) {
431			if (r->KeyRange.low > new_region_pos) break;
432			}
433
434			region = instrument->AddRegion();
435			region->KeyRange.low = region->KeyRange.high = new_region_pos;
436
437			instrument->MoveRegion(region, r);
438			queue_draw();
439			sel_changed_signal.emit();
440			}
441
442			void RegionChooser::delete_region()
443			{
444			instrument->DeleteRegion(region);
445			region = 0;
446			queue_draw();
447			sel_changed_signal.emit();
448			}
449	schoenebeck	1107
450			void RegionChooser::manage_dimensions()
451			{
452			gig::Region* region = get_region();
453			if (!region) return;
454			dimensionManager.show(region);
455			}
456	schoenebeck	1111
457			void RegionChooser::on_dimension_manager_changed() {
458			sel_changed_signal.emit();
459			}