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/* |
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* Copyright (C) 2006, 2007 Andreas Persson |
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* |
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* This program is free software; you can redistribute it and/or |
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* modify it under the terms of the GNU General Public License as |
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* published by the Free Software Foundation; either version 2, or (at |
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* your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, but |
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* WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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* General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with program; see the file COPYING. If not, write to the Free |
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* Software Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
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* 02110-1301 USA. |
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*/ |
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|
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#include "regionchooser.h" |
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#include <gdkmm/cursor.h> |
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#include <gtkmm/stock.h> |
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|
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RegionChooser::RegionChooser() |
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{ |
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Glib::RefPtr<Gdk::Colormap> colormap = get_default_colormap(); |
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|
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black = Gdk::Color("black"); |
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white = Gdk::Color("white"); |
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red = Gdk::Color("#8070ff"); |
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blue = Gdk::Color("#c098ff"); |
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green = Gdk::Color("#a088ff"); |
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grey1 = Gdk::Color("red"); |
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|
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colormap->alloc_color(black); |
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colormap->alloc_color(white); |
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colormap->alloc_color(red); |
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colormap->alloc_color(blue); |
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colormap->alloc_color(green); |
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colormap->alloc_color(grey1); |
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instrument = 0; |
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region = 0; |
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resize.active = false; |
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cursor_is_resize = false; |
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h1 = 20; |
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width = 800; |
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|
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actionGroup = Gtk::ActionGroup::create(); |
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actionGroup->add(Gtk::Action::create("Properties", |
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Gtk::Stock::PROPERTIES), |
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sigc::mem_fun(*this, |
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&RegionChooser::show_region_properties)); |
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actionGroup->add(Gtk::Action::create("Remove", Gtk::Stock::REMOVE), |
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sigc::mem_fun(*this, &RegionChooser::delete_region)); |
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actionGroup->add(Gtk::Action::create("Add", Gtk::Stock::ADD), |
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sigc::mem_fun(*this, &RegionChooser::add_region)); |
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|
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uiManager = Gtk::UIManager::create(); |
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uiManager->insert_action_group(actionGroup); |
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Glib::ustring ui_info = |
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"<ui>" |
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" <popup name='PopupMenuInsideRegion'>" |
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" <menuitem action='Properties'/>" |
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" <menuitem action='Remove'/>" |
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" </popup>" |
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" <popup name='PopupMenuOutsideRegion'>" |
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" <menuitem action='Add'/>" |
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" </popup>" |
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"</ui>"; |
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uiManager->add_ui_from_string(ui_info); |
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|
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popup_menu_inside_region = dynamic_cast<Gtk::Menu*>( |
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uiManager->get_widget("/PopupMenuInsideRegion")); |
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popup_menu_outside_region = dynamic_cast<Gtk::Menu*>( |
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uiManager->get_widget("/PopupMenuOutsideRegion")); |
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|
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add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK | |
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Gdk::POINTER_MOTION_MASK | Gdk::POINTER_MOTION_HINT_MASK); |
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} |
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|
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RegionChooser::~RegionChooser() |
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{ |
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} |
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|
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void RegionChooser::on_realize() |
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{ |
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// We need to call the base on_realize() |
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Gtk::DrawingArea::on_realize(); |
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|
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// Now we can allocate any additional resources we need |
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Glib::RefPtr<Gdk::Window> window = get_window(); |
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gc = Gdk::GC::create(window); |
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window->clear(); |
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} |
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|
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bool RegionChooser::on_expose_event(GdkEventExpose* event) |
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{ |
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Glib::RefPtr<Gdk::Window> window = get_window(); |
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window->clear(); |
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const int h = 40; |
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const int w = width - 1; |
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const int bh = int(h * 0.55); |
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|
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Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc(); |
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Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc(); |
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|
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window->draw_rectangle(black, false, 0, h1, w, h - 1); |
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window->draw_rectangle(white, true, 1, h1 + 1, w - 1, h - 2); |
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for (int i = 0 ; i < 128 ; i++) { |
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int note = (i + 3) % 12; |
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int x = int(w * i / 128.0 + 0.5); |
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|
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if (note == 1 || note == 4 || note == 6 || note == 9 || note == 11) { |
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int x2 = int(w * (i + 0.5) / 128.0 + 0.5); |
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window->draw_line(black, x2, h1 + bh, x2, h1 + h); |
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|
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int x3 = int(w * (i + 1) / 128.0 + 0.5); |
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window->draw_rectangle(black, true, x, h1 + 1, x3 - x + 1, bh); |
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} else if (note == 3 || note == 8) { |
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window->draw_line(black, x, h1 + 1, x, h1 + h); |
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} |
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} |
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|
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if (instrument) { |
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int i = 0; |
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gig::Region *nextRegion; |
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int x3 = -1; |
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for (gig::Region *r = instrument->GetFirstRegion() ; |
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r ; |
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r = nextRegion) { |
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|
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if (x3 < 0) x3 = int(w * (r->KeyRange.low) / 128.0 + 0.5); |
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nextRegion = instrument->GetNextRegion(); |
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if (!nextRegion || r->KeyRange.high + 1 != nextRegion->KeyRange.low) { |
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int x2 = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5); |
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window->draw_line(black, x3, 0, x2, 0); |
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window->draw_line(black, x3, h1 - 1, x2, h1 - 1); |
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window->draw_line(black, x2, 1, x2, h1 - 2); |
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window->draw_rectangle(white, true, x3 + 1, 1, x2 - x3 - 1, h1 - 2); |
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x3 = -1; |
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} |
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i++; |
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} |
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|
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for (gig::Region *r = instrument->GetFirstRegion() ; |
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r ; |
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r = instrument->GetNextRegion()) { |
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int x = int(w * (r->KeyRange.low) / 128.0 + 0.5); |
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window->draw_line(black, x, 1, x, h1 - 2); |
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} |
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|
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if (region) { |
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int x1 = int(w * (region->KeyRange.low) / 128.0 + 0.5); |
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int x2 = int(w * (region->KeyRange.high + 1) / 128.0 + 0.5); |
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gc->set_foreground(red); |
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window->draw_rectangle(gc, true, x1 + 1, 1, x2 - x1 - 1, h1 - 2); |
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} |
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} |
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return true; |
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} |
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|
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|
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void RegionChooser::on_size_request(GtkRequisition* requisition) |
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{ |
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*requisition = GtkRequisition(); |
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requisition->height = 40 + 20; |
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requisition->width = 500; |
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} |
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|
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|
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// not used |
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void RegionChooser::draw_region(int from, int to, const Gdk::Color& color) |
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{ |
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const int h = 40; |
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const int w = width; |
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const int bh = int(h * 0.55); |
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|
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Glib::RefPtr<Gdk::Window> window = get_window(); |
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gc->set_foreground(color); |
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|
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for (int i = from ; i < to ; i++) { |
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int note = (i + 3) % 12; |
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int x = int(w * i / 128.0 + 0.5) + 1; |
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int x2 = int(w * (i + 1.5) / 128.0 + 0.5); |
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int x3 = int(w * (i + 1) / 128.0 + 0.5); |
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int x4 = int(w * (i - 0.5) / 128 + 0.5) + 1; |
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int w1 = x3 - x; |
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switch (note) { |
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case 0: case 5: case 10: |
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window->draw_rectangle(gc, true, x, h1 + 1, w1, bh); |
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window->draw_rectangle(gc, true, x4, h1 + bh + 1, x2 - x4, h - bh - 2); |
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break; |
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case 2: case 7: |
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window->draw_rectangle(gc, true, x, h1 + 1, w1, bh); |
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window->draw_rectangle(gc, true, x4, h1 + bh + 1, x3 - x4, h - bh - 2); |
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break; |
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case 3: case 8: |
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window->draw_rectangle(gc, true, x, h1 + 1, w1, bh); |
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window->draw_rectangle(gc, true, x, h1 + bh + 1, x2 - x, h - bh - 2); |
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break; |
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default: |
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window->draw_rectangle(gc, true, x, h1 + 1, w1, bh - 1); |
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break; |
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} |
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} |
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} |
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|
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void RegionChooser::set_instrument(gig::Instrument* instrument) |
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{ |
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this->instrument = instrument; |
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region = instrument->GetFirstRegion(); |
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queue_draw(); |
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sel_changed_signal.emit(); |
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} |
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|
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void RegionChooser::set_region(gig::Region* region) |
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{ |
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this->region = region; |
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queue_draw(); |
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} |
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|
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bool RegionChooser::on_button_release_event(GdkEventButton* event) |
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{ |
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if (resize.active) { |
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get_window()->pointer_ungrab(event->time); |
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resize.active = false; |
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|
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if (resize.mode == resize.moving_high_limit) { |
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resize.region->KeyRange.high = resize.pos - 1; |
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} else if (resize.mode == resize.moving_low_limit) { |
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resize.region->KeyRange.low = resize.pos; |
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} |
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|
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if (!is_in_resize_zone(event->x, event->y) && cursor_is_resize) { |
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get_window()->set_cursor(); |
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cursor_is_resize = false; |
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} |
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} |
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return true; |
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} |
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|
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bool RegionChooser::on_button_press_event(GdkEventButton* event) |
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{ |
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if (!instrument) return true; |
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|
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int k = int(event->x / (width - 1) * 128.0); |
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|
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if (event->type == GDK_BUTTON_PRESS && event->button == 3) { |
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gig::Region* r = get_region(k); |
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if (r) { |
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region = r; |
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queue_draw(); |
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sel_changed_signal.emit(); |
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popup_menu_inside_region->popup(event->button, event->time); |
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} else { |
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new_region_pos = k; |
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popup_menu_outside_region->popup(event->button, event->time); |
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} |
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} else { |
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if (is_in_resize_zone(event->x, event->y)) { |
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Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW); |
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get_window()->pointer_grab(false, |
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Gdk::BUTTON_RELEASE_MASK | |
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Gdk::POINTER_MOTION_MASK | |
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Gdk::POINTER_MOTION_HINT_MASK, |
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double_arrow, event->time); |
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resize.active = true; |
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} else { |
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gig::Region* r = get_region(k); |
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if (r) { |
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region = r; |
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queue_draw(); |
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sel_changed_signal.emit(); |
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} |
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} |
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} |
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return true; |
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} |
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|
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gig::Region* RegionChooser::get_region(int key) |
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{ |
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for (gig::Region *r = instrument->GetFirstRegion() ; r ; |
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r = instrument->GetNextRegion()) { |
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if (key < r->KeyRange.low) return 0; |
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if (key <= r->KeyRange.high) return r; |
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} |
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return 0; |
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} |
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|
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bool RegionChooser::on_motion_notify_event(GdkEventMotion* event) |
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{ |
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const int w = width - 1; |
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Glib::RefPtr<Gdk::Window> window = get_window(); |
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int x, y; |
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Gdk::ModifierType state = Gdk::ModifierType(0); |
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window->get_pointer(x, y, state); |
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if (resize.active) { |
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int k = int(double(x) / w * 128.0 + 0.5); |
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|
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if (k < resize.min) k = resize.min; |
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else if (k > resize.max) k = resize.max; |
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|
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if (k != resize.pos) { |
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if (resize.mode == resize.undecided) { |
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if (k < resize.pos) { |
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// edit high limit of prev_region |
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resize.max = resize.region->KeyRange.low; |
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resize.region = resize.prev_region; |
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resize.mode = resize.moving_high_limit; |
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} else { |
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// edit low limit of region |
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resize.min = resize.prev_region->KeyRange.high + 1; |
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resize.mode = resize.moving_low_limit; |
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} |
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} |
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Glib::RefPtr<const Gdk::GC> black = get_style()->get_black_gc(); |
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Glib::RefPtr<const Gdk::GC> white = get_style()->get_white_gc(); |
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if (region == resize.region) { |
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gc->set_foreground(red); |
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white = gc; |
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} |
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Glib::RefPtr<const Gdk::GC> bg = get_style()->get_bg_gc(Gtk::STATE_NORMAL); |
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int prevx = int(w * resize.pos / 128.0 + 0.5); |
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x = int(w * k / 128.0 + 0.5); |
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|
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if (resize.mode == resize.moving_high_limit) { |
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if (k > resize.pos) { |
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window->draw_rectangle(white, true, prevx, 1, x - prevx, h1 - 2); |
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window->draw_line(black, prevx, 0, x, 0); |
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window->draw_line(black, prevx, h1 - 1, x, h1 - 1); |
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} else { |
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int xx = ((resize.pos == resize.max && resize.max != 128) ? 1 : 0); |
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window->draw_rectangle(bg, true, x + 1, 0, prevx - x - xx, h1); |
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} |
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} else { |
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if (k < resize.pos) { |
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window->draw_rectangle(white, true, x + 1, 1, prevx - x, h1 - 2); |
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window->draw_line(black, x, 0, prevx, 0); |
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window->draw_line(black, x, h1 - 1, prevx, h1 - 1); |
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} else { |
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int xx = ((resize.pos == resize.min && resize.min != 0) ? 1 : 0); |
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window->draw_rectangle(bg, true, prevx + xx, 0, x - prevx - xx, h1); |
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} |
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} |
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window->draw_line(black, x, 1, x, h1 - 2); |
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resize.pos = k; |
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} |
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} else { |
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if (is_in_resize_zone(x, y)) { |
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if (!cursor_is_resize) { |
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Gdk::Cursor double_arrow(Gdk::SB_H_DOUBLE_ARROW); |
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window->set_cursor(double_arrow); |
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cursor_is_resize = true; |
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} |
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} else if (cursor_is_resize) { |
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window->set_cursor(); |
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cursor_is_resize = false; |
| 358 |
} |
| 359 |
} |
| 360 |
|
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return true; |
| 362 |
} |
| 363 |
|
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bool RegionChooser::is_in_resize_zone(double x, double y) { |
| 365 |
const int w = width - 1; |
| 366 |
|
| 367 |
if (instrument && y >= 0 && y <= h1) { |
| 368 |
gig::Region* prev_region = 0; |
| 369 |
gig::Region* next_region; |
| 370 |
for (gig::Region* r = instrument->GetFirstRegion() ; r ; r = next_region) { |
| 371 |
next_region = instrument->GetNextRegion(); |
| 372 |
|
| 373 |
int lo = int(w * (r->KeyRange.low) / 128.0 + 0.5); |
| 374 |
if (x <= lo - 2) break; |
| 375 |
if (x < lo + 2) { |
| 376 |
resize.region = r; |
| 377 |
resize.pos = r->KeyRange.low; |
| 378 |
resize.max = r->KeyRange.high; |
| 379 |
|
| 380 |
if (prev_region && prev_region->KeyRange.high + 1 == r->KeyRange.low) { |
| 381 |
// we don't know yet if it's the high limit of |
| 382 |
// prev_region or the low limit of r that's going |
| 383 |
// to be edited |
| 384 |
resize.mode = resize.undecided; |
| 385 |
resize.min = prev_region->KeyRange.low + 1; |
| 386 |
resize.prev_region = prev_region; |
| 387 |
return true; |
| 388 |
} |
| 389 |
|
| 390 |
// edit low limit |
| 391 |
resize.mode = resize.moving_low_limit; |
| 392 |
resize.min = prev_region ? prev_region->KeyRange.high + 1 : 0; |
| 393 |
return true; |
| 394 |
} |
| 395 |
if (!next_region || r->KeyRange.high + 1 != next_region->KeyRange.low) { |
| 396 |
int hi = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5); |
| 397 |
if (x <= hi - 2) break; |
| 398 |
if (x < hi + 2) { |
| 399 |
// edit high limit |
| 400 |
resize.region = r; |
| 401 |
resize.pos = r->KeyRange.high + 1; |
| 402 |
resize.mode = resize.moving_high_limit; |
| 403 |
resize.min = r->KeyRange.low + 1; |
| 404 |
resize.max = next_region ? next_region->KeyRange.low : 128; |
| 405 |
return true; |
| 406 |
} |
| 407 |
} |
| 408 |
prev_region = r; |
| 409 |
} |
| 410 |
} |
| 411 |
return false; |
| 412 |
} |
| 413 |
|
| 414 |
sigc::signal<void> RegionChooser::signal_sel_changed() |
| 415 |
{ |
| 416 |
return sel_changed_signal; |
| 417 |
} |
| 418 |
|
| 419 |
void RegionChooser::show_region_properties() |
| 420 |
{ |
| 421 |
} |
| 422 |
|
| 423 |
void RegionChooser::add_region() |
| 424 |
{ |
| 425 |
gig::Region* r; |
| 426 |
for (r = instrument->GetFirstRegion() ; r ; r = instrument->GetNextRegion()) { |
| 427 |
if (r->KeyRange.low > new_region_pos) break; |
| 428 |
} |
| 429 |
|
| 430 |
region = instrument->AddRegion(); |
| 431 |
region->KeyRange.low = region->KeyRange.high = new_region_pos; |
| 432 |
|
| 433 |
instrument->MoveRegion(region, r); |
| 434 |
queue_draw(); |
| 435 |
sel_changed_signal.emit(); |
| 436 |
} |
| 437 |
|
| 438 |
void RegionChooser::delete_region() |
| 439 |
{ |
| 440 |
instrument->DeleteRegion(region); |
| 441 |
region = 0; |
| 442 |
queue_draw(); |
| 443 |
sel_changed_signal.emit(); |
| 444 |
} |
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