From 24bb55371a5d8d81b23521ebdfcde68f0035697c Mon Sep 17 00:00:00 2001 From: Bent Bisballe Nyeng Date: Sun, 20 Sep 2015 11:36:22 +0200 Subject: Basic project based on DrumGizmo. --- plugingui/listboxbasic.cc | 334 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 334 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..df7877d --- /dev/null +++ b/plugingui/listboxbasic.cc @@ -0,0 +1,334 @@ + +/* -*- 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 +#include + +void scrolled(void *ptr) +{ + GUI::ListBoxBasic *l = (GUI::ListBoxBasic *)ptr; + l->repaintEvent(NULL); +} + +GUI::ListBoxBasic::ListBoxBasic(GUI::Widget *parent) + : GUI::Widget(parent), scroll(this), bg_img(":widget_c.png") +{ + scroll.move(0,0); + scroll.resize(18, 100); + + scroll.registerValueChangeHandler(scrolled, this); + + padding = 4; + btn_size = 18; + + selected = -1; + marked = -1; + + clk_handler = NULL; + clk_ptr = NULL; + + sel_handler = NULL; + sel_ptr = NULL; + + valch_handler = NULL; + valch_ptr = NULL; +} + +GUI::ListBoxBasic::~ListBoxBasic() +{ +} + +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) +{ + std::vector items; + GUI::ListBoxBasic::Item item; + item.name = name; + item.value = value; + items.push_back(item); + addItems(items); +} + +void GUI::ListBoxBasic::addItems(std::vector &is) +{ + // DEBUG(list, "addItems %lu\n", is.size()); + std::vector::iterator i = is.begin(); + while(i != is.end()) { + items.push_back(*i); + i++; + } + +/* + // sort + for(int x = 0; x < (int)items.size(); x++) { + for(int y = 0; y < (int)items.size(); y++) { + if(items[x].name < items[y].name) { + if(x == selected) setSelection(y); + else if(selected == y) setSelection(x); + + GUI::ListBoxBasic::Item tmp = items[x]; + items[x] = items[y]; + items[y] = tmp; + } + } + } +*/ + + if(selected == -1) setSelection((int)items.size() - 1); + setSelection(0); + + int numitems = height() / (font.textHeight() + padding); + scroll.setRange(numitems); + scroll.setMaximum(items.size()); +} + +void GUI::ListBoxBasic::clear() +{ + items.clear(); + setSelection(-1); + scroll.setValue(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::clearSelectedValue() +{ + setSelection(-1); +} + +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) +{ + DEBUG(list, "repaint\n"); + 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); + + p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1)); + + int yoffset = padding / 2; + int skip = scroll.value(); + int numitems = height() / (font.textHeight() + padding) + 1; + for(int idx = skip; idx < (int)items.size() && idx < skip + numitems; idx++) { + GUI::ListBoxBasic::Item *i = &items[idx]; + if(idx == selected) { + p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 0.5)); + p.drawFilledRectangle(0, + yoffset - (padding / 2), + width() - 1, + yoffset + (font.textHeight() + 1)); + } + + if(idx == marked) { + p.drawRectangle(0, + yoffset - (padding / 2), + width() - 1, + yoffset + (font.textHeight() + 1)); + } + + p.setColour(GUI::Colour(183.0/255.0, 219.0/255.0 , 255.0/255.0, 1)); + + p.drawText(2, yoffset + font.textHeight(), font, i->name); + yoffset += font.textHeight() + padding; + } +} + +void GUI::ListBoxBasic::scrollEvent(ScrollEvent *e) +{ + scroll.scrollEvent(e); +} + +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.value()) { + scroll.setValue(marked); + } + } + 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.value() + numitems - 1)) { + scroll.setValue(marked - numitems + 1); + } + } + break; + case GUI::KeyEvent::KEY_HOME: + marked = 0; + if(marked < scroll.value()) { + scroll.setValue(marked); + } + 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.value() + numitems - 1)) { + scroll.setValue(marked - numitems + 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.setValue(scroll.value() - 1); + return; + } + + if(e->y > ((int)height() - btn_size) && e->y < ((int)height() - 1)) { + if(e->direction == -1) return; + scroll.setValue(scroll.value() + 1); + return; + } + } + + if(e->direction == -1) { + int skip = scroll.value(); + 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.value(); + 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); +} + +void GUI::ListBoxBasic::resize(int w, int h) +{ + GUI::Widget::resize(w,h); + scroll.move(w - scroll.width(), 0); + scroll.resize(scroll.width(), h); +} -- cgit v1.2.3