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Diffstat (limited to 'dggui/combobox.cc')
| -rw-r--r-- | dggui/combobox.cc | 234 |
1 files changed, 234 insertions, 0 deletions
diff --git a/dggui/combobox.cc b/dggui/combobox.cc new file mode 100644 index 0000000..aa2058e --- /dev/null +++ b/dggui/combobox.cc @@ -0,0 +1,234 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * combobox.cc + * + * Sun Mar 10 19:04:50 CET 2013 + * Copyright 2013 Bent Bisballe Nyeng + * deva@aasimon.org + ****************************************************************************/ + +/* + * This file is part of DrumGizmo. + * + * DrumGizmo is free software; you can redistribute it and/or modify + * it under the terms of the GNU Lesser General Public License as published by + * the Free Software Foundation; either version 3 of the License, or + * (at your option) any later version. + * + * DrumGizmo 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 Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public License + * along with DrumGizmo; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ +#include "combobox.h" + +#include "painter.h" +#include "font.h" + +#include <stdio.h> + +#define BORDER 10 + +namespace GUI +{ + +void ComboBox::listboxSelectHandler() +{ + ButtonEvent buttonEvent; + buttonEvent.direction = Direction::down; + this->buttonEvent(&buttonEvent); +} + +ComboBox::ComboBox(Widget* parent) + : Widget(parent) + , listbox(parent) +{ + CONNECT(&listbox, selectionNotifier, this, &ComboBox::listboxSelectHandler); + CONNECT(&listbox, clickNotifier, this, &ComboBox::listboxSelectHandler); + + listbox.hide(); +} + +ComboBox::~ComboBox() +{ +} + +void ComboBox::addItem(std::string name, std::string value) +{ + listbox.addItem(name, value); +} + +void ComboBox::clear() +{ + listbox.clear(); + redraw(); +} + +bool ComboBox::selectItem(int index) +{ + listbox.selectItem(index); + redraw(); + return true; +} + +std::string ComboBox::selectedName() +{ + return listbox.selectedName(); +} + +std::string ComboBox::selectedValue() +{ + return listbox.selectedValue(); +} + +static void drawArrow(Painter &p, int x, int y, int w, int h) +{ + p.drawLine(x, y, x+(w/2), y+h); + p.drawLine(x+(w/2), y+h, x+w, y); + + y++; + p.drawLine(x, y, x+(w/2), y+h); + p.drawLine(x+(w/2), y+h, x+w, y); +} + +void ComboBox::repaintEvent(RepaintEvent* repaintEvent) +{ + Painter p(*this); + + std::string _text = selectedName(); + + int w = width(); + int h = height(); + if(w == 0 || h == 0) + { + return; + } + + box.setSize(w, h); + p.drawImage(0, 0, box); + + p.setColour(Colour(183.0f/255.0f, 219.0f/255.0f, 255.0/255.0f, 1.0f)); + p.drawText(BORDER - 4 + 3, height()/2+5 + 1 + 1, font, _text); + + // p.setColour(Colour(1, 1, 1)); + // p.drawText(BORDER - 4, (height()+font.textHeight()) / 2 + 1, font, _text); + + //int n = height() / 2; + + // p.drawLine(width() - n - 6, 1 + 6, width() - 1 - 6, 1 + 6); + { + int w = 10; + int h = 6; + drawArrow(p, width() - 6 - 4 - w, (height() - h) / 2, w, h); + p.drawLine(width() - 6 - 4 - w - 4, 7, + width() - 6 - 4 - w - 4, height() - 8); + } +} + +void ComboBox::scrollEvent(ScrollEvent* scrollEvent) +{ + /* + scroll_offset += e->delta; + if(scroll_offset < 0) + { + scroll_offset = 0; + } + if(scroll_offset > (items.size() - 1)) + { + scroll_offset = (items.size() - 1); + } + redraw(); + */ +} + +void ComboBox::keyEvent(KeyEvent* keyEvent) +{ + if(keyEvent->direction != Direction::up) + { + return; + } + + /* + switch(keyEvent->keycode) { + case Key::up: + { + selected--; + if(selected < 0) + { + selected = 0; + } + if(selected < scroll_offset) + { + scroll_offset = selected; + if(scroll_offset < 0) + { + scroll_offset = 0; + } + } + } + break; + case Key::down: + { + // Number of items that can be displayed at a time. + int numitems = height() / (font.textHeight() + padding); + + selected++; + if(selected > (items.size() - 1)) + { + selected = (items.size() - 1); + } + if(selected > (scroll_offset + numitems - 1)) + { + scroll_offset = selected - numitems + 1; + if(scroll_offset > (items.size() - 1)) + { + scroll_offset = (items.size() - 1); + } + } + } + break; + case Key::home: + selected = 0; + break; + case Key::end: + selected = items.size() - 1; + break; + default: + break; + } + + redraw(); + */ +} + +void ComboBox::buttonEvent(ButtonEvent* buttonEvent) +{ + // Ignore everything except left clicks. + if(buttonEvent->button != MouseButton::left) + { + return; + } + + if(buttonEvent->direction != Direction::down) + { + return; + } + + if(!listbox.visible()) + { + listbox.resize(width() - 10, 100); + listbox.move(x() + 5, y() + height() - 7); + } + else + { + valueChangedNotifier(listbox.selectedName(), listbox.selectedValue()); + } + + listbox.setVisible(!listbox.visible()); +} + +} // GUI:: |