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Diffstat (limited to 'plugingui/combobox.cc')
| -rw-r--r-- | plugingui/combobox.cc | 231 |
1 files changed, 231 insertions, 0 deletions
diff --git a/plugingui/combobox.cc b/plugingui/combobox.cc new file mode 100644 index 0000000..4637282 --- /dev/null +++ b/plugingui/combobox.cc @@ -0,0 +1,231 @@ +/* -*- 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 General Public License as published by + * the Free Software Foundation; either version 2 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 General Public License for more details. + * + * You should have received a copy of the GNU 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 + +void listboxSelectHandler(void *ptr) +{ + GUI::ComboBox *c = (GUI::ComboBox*)ptr; + GUI::ButtonEvent e; + e.direction = 1; + c->buttonEvent(&e); +} + +GUI::ComboBox::ComboBox(GUI::Widget *parent) + : GUI::Widget(parent) +{ + handler = NULL; + ptr = NULL; + + box.topLeft = new Image(":widget_tl.png"); + box.top = new Image(":widget_t.png"); + box.topRight = new Image(":widget_tr.png"); + box.left = new Image(":widget_l.png"); + box.right = new Image(":widget_r.png"); + box.bottomLeft = new Image(":widget_bl.png"); + box.bottom = new Image(":widget_b.png"); + box.bottomRight = new Image(":widget_br.png"); + box.center = new Image(":widget_c.png"); + + listbox = new GUI::ListBoxThin(parent); + listbox->registerSelectHandler(listboxSelectHandler, this); + listbox->registerClickHandler(listboxSelectHandler, this); + listbox->hide(); +} + +GUI::ComboBox::~ComboBox() +{ +} + +void GUI::ComboBox::addItem(std::string name, std::string value) +{ + listbox->addItem(name, value); +} + +void GUI::ComboBox::clear() +{ + listbox->clear(); + repaintEvent(NULL); +} + +bool GUI::ComboBox::selectItem(int index) +{ + listbox->selectItem(index); + repaintEvent(NULL); + return true; +} + +std::string GUI::ComboBox::selectedName() +{ + return listbox->selectedName(); +} + +std::string GUI::ComboBox::selectedValue() +{ + return listbox->selectedValue(); +} + +void GUI::ComboBox::registerValueChangedHandler(void (*handler)(void *), + void *ptr) +{ + this->handler = handler; + this->ptr = ptr; +} + +static void drawArrow(GUI::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 GUI::ComboBox::repaintEvent(GUI::RepaintEvent *e) +{ + Painter p(this); + + p.clear(); + + std::string _text = selectedName(); + + int w = width(); + int h = height(); + if(w == 0 || h == 0) return; + p.drawBox(0, 0, &box, w, h); + + p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1)); + 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 GUI::ComboBox::scrollEvent(ScrollEvent *e) +{ + /* + scroll_offset += e->delta; + if(scroll_offset < 0) scroll_offset = 0; + if(scroll_offset > (items.size() - 1)) + scroll_offset = (items.size() - 1); + repaintEvent(NULL); + */ +} + +void GUI::ComboBox::keyEvent(GUI::KeyEvent *e) +{ + if(e->direction != -1) return; + + /* + switch(e->keycode) { + case GUI::KeyEvent::KEY_UP: + { + selected--; + if(selected < 0) selected = 0; + if(selected < scroll_offset) { + scroll_offset = selected; + if(scroll_offset < 0) scroll_offset = 0; + } + } + break; + case GUI::KeyEvent::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 GUI::KeyEvent::KEY_HOME: + selected = 0; + break; + case GUI::KeyEvent::KEY_END: + selected = items.size() - 1; + break; + default: + break; + } + + repaintEvent(NULL); + */ +} + +void GUI::ComboBox::buttonEvent(ButtonEvent *e) +{ + if(e->direction != 1) return; + + if(!listbox->visible()) { + listbox->resize(width() - 10, 100); + listbox->move(x() + 5, y() + height() - 7); + } else { + if(handler) handler(ptr); + } + + listbox->setVisible(!listbox->visible()); +} + +#ifdef TEST_COMBOBOX +//Additional dependency files +//deps: +//Required cflags (autoconf vars may be used) +//cflags: +//Required link options (autoconf vars may be used) +//libs: +#include "test.h" + +TEST_BEGIN; + +// TODO: Put some testcode here (see test.h for usable macros). + +TEST_END; + +#endif/*TEST_COMBOBOX*/ |