From 77b3943b751bed43d230de6db322a750bfd1fc8e Mon Sep 17 00:00:00 2001 From: Bent Bisballe Nyeng Date: Thu, 4 Apr 2013 21:19:58 +0200 Subject: New message system. New common midi input class. Some compiler warning fixes. New ListBoxBasic class used by both LustBox and ComboBox. New embossed font. --- plugingui/listboxbasic.cc | 311 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 311 insertions(+) create mode 100644 plugingui/listboxbasic.cc (limited to 'plugingui/listboxbasic.cc') diff --git a/plugingui/listboxbasic.cc b/plugingui/listboxbasic.cc new file mode 100644 index 0000000..25b3daf --- /dev/null +++ b/plugingui/listboxbasic.cc @@ -0,0 +1,311 @@ +/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ +/*************************************************************************** + * listboxbasic.cc + * + * Thu Apr 4 20:28:10 CEST 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 "listboxbasic.h" + +#include "painter.h" +#include "font.h" + +#include + +GUI::ListBoxBasic::ListBoxBasic(GUI::Widget *parent) + : GUI::Widget(parent) +{ + padding = 4; + btn_size = 14; + + scroll_offset = 0; + selected = -1; + marked = -1; + + clk_handler = NULL; + clk_ptr = NULL; + + sel_handler = NULL; + sel_ptr = NULL; + + valch_handler = NULL; + valch_ptr = NULL; + + bg_img = new GUI::Image(":widget_c.png"); +} + +GUI::ListBoxBasic::~ListBoxBasic() +{ + delete bg_img; +} + +void GUI::ListBoxBasic::setSelection(int index) +{ + selected = index; + if(valch_handler) valch_handler(valch_ptr); +} + +void GUI::ListBoxBasic::addItem(std::string name, std::string value) +{ + struct item i; + i.name = name; + i.value = value; + + items.push_back(i); + + // sort + for(int x = 0; x < (int)items.size() - 1; x++) { + for(int y = 0; y < (int)items.size() - 1; y++) { + if(items[x].name < items[y].name) { + + if(x == selected) setSelection(y); + else if(selected == y) setSelection(x); + + struct item tmp = items[x]; + items[x] = items[y]; + items[y] = tmp; + } + } + } + + if(selected == -1) setSelection((int)items.size() - 1); +} + +void GUI::ListBoxBasic::clear() +{ + items.clear(); + setSelection(-1); + scroll_offset = 0; + repaintEvent(NULL); +} + +bool GUI::ListBoxBasic::selectItem(int index) +{ + if(index < 0 || index > (int)items.size() - 1) return false; + setSelection(index); + repaintEvent(NULL); + return true; +} + +std::string GUI::ListBoxBasic::selectedName() +{ + if(selected < 0 || selected > (int)items.size() - 1) return ""; + return items[selected].name; +} + +std::string GUI::ListBoxBasic::selectedValue() +{ + if(selected < 0 || selected > (int)items.size() - 1) return ""; + return items[selected].value; +} + +void GUI::ListBoxBasic::registerClickHandler(void (*handler)(void *), void *ptr) +{ + this->clk_handler = handler; + this->clk_ptr = ptr; +} + +void GUI::ListBoxBasic::registerSelectHandler(void (*handler)(void *), void *ptr) +{ + this->sel_handler = handler; + this->sel_ptr = ptr; +} + +void GUI::ListBoxBasic::registerValueChangeHandler(void (*handler)(void *), + void *ptr) +{ + this->valch_handler = handler; + this->valch_ptr = ptr; +} + +void GUI::ListBoxBasic::repaintEvent(GUI::RepaintEvent *e) +{ + GUI::Painter p(this); + + p.clear(); + + int w = width(); + int h = height(); + if(w == 0 || h == 0) return; + + p.drawImageStretched(0, 0, bg_img, w, h); + + int yoffset = padding / 2; + int skip = scroll_offset; + for(int idx = skip; idx < (int)items.size(); idx++) { + struct item *i = &items[idx]; + if(idx == selected) { + p.setColour(Colour(0.6, 0.9)); + p.drawFilledRectangle(1, + yoffset - (padding / 2), + width() - 1, + yoffset + (font.textHeight() + 1)); + } + + if(idx == marked) { + p.setColour(Colour(1, 0.9)); + p.drawRectangle(1, + yoffset - (padding / 2), + width() - 1, + yoffset + (font.textHeight() + 1)); + } + + p.setColour(Colour(1, 1)); + p.drawText(2, yoffset + font.textHeight(), font, i->name); + yoffset += font.textHeight() + padding; + } + + p.drawRectangle(width() - btn_size, 0, width() - 1, btn_size); + p.drawRectangle(width() - btn_size, height() - btn_size, + width() - 1, height() - 1); +} + +void GUI::ListBoxBasic::scrollEvent(ScrollEvent *e) +{ + scroll_offset += e->delta; + if(scroll_offset < 0) scroll_offset = 0; + if(scroll_offset > ((int)items.size() - 1)) + scroll_offset = ((int)items.size() - 1); + repaintEvent(NULL); +} + +void GUI::ListBoxBasic::keyEvent(GUI::KeyEvent *e) +{ + if(e->direction != -1) return; + + switch(e->keycode) { + case GUI::KeyEvent::KEY_UP: + { + marked--; + if(marked < 0) marked = 0; + + if(marked < scroll_offset) { + scroll_offset = marked; + 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); + + marked++; + if(marked > ((int)items.size() - 1)) marked = (int)items.size() - 1; + + if(marked > (scroll_offset + numitems - 1)) { + scroll_offset = marked - numitems + 1; + if(scroll_offset > ((int)items.size() - 1)) + scroll_offset = ((int)items.size() - 1); + } + } + break; + case GUI::KeyEvent::KEY_HOME: + marked = 0; + if(marked < scroll_offset) { + scroll_offset = marked; + if(scroll_offset < 0) scroll_offset = 0; + } + break; + case GUI::KeyEvent::KEY_END: + { + // Number of items that can be displayed at a time. + int numitems = height() / (font.textHeight() + padding); + + marked = (int)items.size() - 1; + if(marked > (scroll_offset + numitems - 1)) { + scroll_offset = marked - numitems + 1; + if(scroll_offset > ((int)items.size() - 1)) + scroll_offset = ((int)items.size() - 1); + } + } + break; + case GUI::KeyEvent::KEY_CHARACTER: + if(e->text == " ") { + setSelection(marked); + // if(sel_handler) sel_handler(sel_ptr); + } + break; + case GUI::KeyEvent::KEY_ENTER: + setSelection(marked); + if(sel_handler) sel_handler(sel_ptr); + break; + default: + break; + } + + repaintEvent(NULL); +} + +void GUI::ListBoxBasic::buttonEvent(ButtonEvent *e) +{ + if(e->x > ((int)width() - btn_size) && e->y < ((int)width() - 1)) { + if(e->y > 0 && e->y < btn_size) { + if(e->direction == -1) return; + scroll_offset--; + if(scroll_offset < 0) scroll_offset = 0; + repaintEvent(NULL); + return; + } + + if(e->y > ((int)height() - btn_size) && e->y < ((int)height() - 1)) { + if(e->direction == -1) return; + scroll_offset++; + if(scroll_offset > ((int)items.size() - 1)) + scroll_offset = ((int)items.size() - 1); + repaintEvent(NULL); + return; + } + } + + if(e->direction == -1) { + int skip = scroll_offset; + size_t yoffset = padding / 2; + for(int idx = skip; idx < (int)items.size(); idx++) { + yoffset += font.textHeight() + padding; + if(e->y < (int)yoffset - (padding / 2)) { + setSelection(idx); + marked = selected; + if(clk_handler) clk_handler(clk_ptr); + break; + } + } + + repaintEvent(NULL); + } + + if(e->direction != -1) { + int skip = scroll_offset; + size_t yoffset = padding / 2; + for(int idx = skip; idx < (int)items.size(); idx++) { + yoffset += font.textHeight() + padding; + if(e->y < (int)yoffset - (padding / 2)) { + marked = idx; + break; + } + } + + repaintEvent(NULL); + } + + if(e->doubleclick && sel_handler) sel_handler(sel_ptr); +} -- cgit v1.2.3