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persson |
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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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#include "regionchooser.h" |
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#include <gdkmm/cursor.h> |
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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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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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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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add_events(Gdk::BUTTON_PRESS_MASK | Gdk::POINTER_MOTION_MASK); |
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} |
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RegionChooser::~RegionChooser() |
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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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// 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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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 h1 = 20; |
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const int h = 40; |
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const int w = 800 - 1; |
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const int bh = int(h * 0.55); |
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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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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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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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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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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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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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// draw_region(r->KeyRange.low, r->KeyRange.high + 1, i % 3 == 0 ? blue : i % 3 == 1 ? red : green); |
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i++; |
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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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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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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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void RegionChooser::draw_region(int from, int to, const Gdk::Color& color) |
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{ |
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const int h1 = 20; |
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const int h = 40; |
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const int w = 800; |
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const int bh = int(h * 0.55); |
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Glib::RefPtr<Gdk::Window> window = get_window(); |
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gc->set_foreground(color); |
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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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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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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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bool RegionChooser::on_button_press_event(GdkEventButton* event) |
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{ |
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const int w = 800 - 1; |
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if (instrument) { |
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int i = 0; |
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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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int x2 = int(w * (r->KeyRange.high + 1) / 128.0 + 0.5); |
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if (event->x >= x && event->x < x2) { |
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region = r; |
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break; |
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} |
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i++; |
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} |
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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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// muspekarexperiment. Fel eventhantering - se example_drawingarea.cc |
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bool inside = false; |
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bool RegionChooser::on_motion_notify_event(GdkEventMotion* event) |
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{ |
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if (event->x > 100 && event->x < 120) { |
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if (!inside) { |
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Gdk::Cursor oj(Gdk::CROSSHAIR); |
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get_window()->set_cursor(oj); |
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inside = true; |
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} |
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} else if (inside) { |
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get_window()->set_cursor(); |
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inside = false; |
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} |
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} |
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sigc::signal<void> RegionChooser::signal_sel_changed() |
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{ |
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return sel_changed_signal; |
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} |