diff options
Diffstat (limited to 'plugingui/listbox.cc')
| -rw-r--r-- | plugingui/listbox.cc | 170 |
1 files changed, 170 insertions, 0 deletions
diff --git a/plugingui/listbox.cc b/plugingui/listbox.cc new file mode 100644 index 0000000..dfb5f07 --- /dev/null +++ b/plugingui/listbox.cc @@ -0,0 +1,170 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * listbox.cc + * + * Mon Feb 25 21:21:41 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 "listbox.h" + +#include "painter.h" +#include "font.h" + +#include <stdio.h> + +GUI::ListBox::ListBox(GUI::Widget *parent) + : GUI::Widget(parent) +{ + padding = 4; + btn_size = 14; + + scroll_offset = 0; + selected = ""; + + dblclk_handler = NULL; + ptr = NULL; +} + +GUI::ListBox::~ListBox() +{ + // printf("ListBox destroy\n"); +} + +void GUI::ListBox::addItem(std::string name, std::string value) +{ + items[name] = value; + if(selected == "") selected = value; +} + +void GUI::ListBox::clear() +{ + items.clear(); + selected = ""; + scroll_offset = 0; + repaintEvent(NULL); +} + +bool GUI::ListBox::selectItem(std::string name) +{ + if(items.find(name) == items.end()) return false; + selected = items[name]; + repaintEvent(NULL); + return true; +} + +std::string GUI::ListBox::selectedName() +{ + return selected; +} + +std::string GUI::ListBox::selectedValue() +{ + return items[selected]; +} + +void GUI::ListBox::registerDblClickHandler(void (*handler)(void *), void *ptr) +{ + this->dblclk_handler = handler; + this->ptr = ptr; +} + +void GUI::ListBox::repaintEvent(GUI::RepaintEvent *e) +{ + GUI::Painter p(this); + + p.setColour(Colour(0, 0.5)); + p.drawFilledRectangle(0, 0, width() - 1, height() - 1); + + p.setColour(Colour(0.5, 1)); + p.drawRectangle(0, 0, width() - 1, height() - 1); + + int yoffset = padding / 2; + int skip = scroll_offset; + std::map<std::string, std::string>::iterator i = items.begin(); + while(i != items.end()) { + if(skip) { + skip--; + i++; + continue; + } + if(i->second == selected) { + p.setColour(Colour(1, 0.4)); + p.drawFilledRectangle(1, + yoffset - (padding / 2), + width() - 1, + yoffset + (font.textHeight() + 1)); + } + + p.setColour(Colour(1, 1)); + p.drawText(2, yoffset + font.textHeight(), font, i->first); + yoffset += font.textHeight() + padding; + i++; + } + + p.drawRectangle(width() - btn_size, 0, width() - 1, btn_size); + p.drawRectangle(width() - btn_size, height() - btn_size, + width() - 1, height() - 1); +} + +void GUI::ListBox::buttonEvent(ButtonEvent *e) +{ + //printf("click %d %d [dc: %d]\n", e->x, e->y, e->doubleclick); + if(e->direction == 1) { + if(e->x > (width() - btn_size) && e->y < (width() - 1)) { + if(e->y > 0 && e->y < btn_size) { + scroll_offset--; + if(scroll_offset < 0) scroll_offset = 0; + repaintEvent(NULL); + return; + } + + if(e->y > (height() - btn_size) && e->y < (height() - 1)) { + scroll_offset++; + if(scroll_offset > (items.size() - 1)) + scroll_offset = (items.size() - 1); + repaintEvent(NULL); + return; + } + } + + int skip = scroll_offset; + size_t yoffset = padding / 2; + std::map<std::string, std::string>::iterator i = items.begin(); + while(i != items.end()) { + if(skip) { + skip--; + i++; + continue; + } + yoffset += font.textHeight() + padding; + if(e->y < (int)yoffset - (padding / 2)) { + selected = i->second; + break; + } + i++; + } + + repaintEvent(NULL); + + if(e->doubleclick && dblclk_handler) dblclk_handler(ptr); + } +} |