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-rw-r--r--plugingui/listbox.cc170
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diff --git a/plugingui/listbox.cc b/plugingui/listbox.cc
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+/* -*- 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);
+ }
+}