From a0b7282b31ed31051ee98bf16e8704d5599e5461 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Wed, 6 Mar 2013 09:30:52 +0100
Subject: Major GUI workover. Hilights: A new filebrowser and new knob widget.

---
 plugingui/listbox.cc | 170 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 170 insertions(+)
 create mode 100644 plugingui/listbox.cc

(limited to 'plugingui/listbox.cc')

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);
+  }
+}
-- 
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