From af9c9091ed69394171485aa4c4814504f86f2004 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Mon, 23 Jan 2012 20:08:12 +0100
Subject: Simple image blit. New slider class. New filenamelineedit. New
 pixelbuffer used for drawing everything but the root window - with alpha
 blending...

---
 plugingui/slider.cc | 145 ++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 145 insertions(+)
 create mode 100644 plugingui/slider.cc

(limited to 'plugingui/slider.cc')

diff --git a/plugingui/slider.cc b/plugingui/slider.cc
new file mode 100644
index 0000000..77ba3a3
--- /dev/null
+++ b/plugingui/slider.cc
@@ -0,0 +1,145 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            slider.cc
+ *
+ *  Sat Nov 26 18:10:22 CET 2011
+ *  Copyright 2011 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 "slider.h"
+
+#include "painter.h"
+
+#include <stdio.h>
+
+GUI::Slider::Slider(Widget *parent)
+  : GUI::Widget(parent)
+{
+  state = up;
+
+  val = 0.0;
+  maximum = 1.0;
+  minimum = 0.0;
+
+  handler = NULL;
+  ptr = NULL;
+}
+
+void GUI::Slider::setValue(float v)
+{
+  val = v;
+  if(handler) handler(ptr);
+  repaintEvent(NULL);
+}
+
+float GUI::Slider::value()
+{
+  return val;
+}
+
+void GUI::Slider::registerClickHandler(void (*handler)(void *), void *ptr)
+{
+  this->handler = handler;
+  this->ptr = ptr;
+}
+
+void GUI::Slider::mouseMoveEvent(MouseMoveEvent *e)
+{
+  if(state == down) {
+    val = maximum / (float)width() * (float)e->x;
+    if(handler) handler(ptr);
+    repaintEvent(NULL);
+  }
+}
+
+void GUI::Slider::buttonEvent(ButtonEvent *e)
+{
+  if(e->direction == 1) {
+    state = down;
+    val = maximum / (float)width() * (float)e->x;
+    if(handler) handler(ptr);
+    repaintEvent(NULL);
+  }
+  if(e->direction == -1) {
+    state = up;
+    val = maximum / (float)width() * (float)e->x;
+    repaintEvent(NULL);
+    clicked();
+    if(handler) handler(ptr);
+  }
+}
+
+void GUI::Slider::repaintEvent(GUI::RepaintEvent *e)
+{
+  printf("Slider::repaintEvent (%f)\n", val);
+
+  Painter p(this);
+
+  float alpha = 0.8;
+
+  int xpos = (int)((val / maximum) * (float)(width() - 1));
+
+  if(hasKeyboardFocus()) {
+    p.setColour(Colour(0.6, alpha));
+  } else {
+    p.setColour(Colour(0.5, alpha));
+  }
+  p.drawFilledRectangle(0,0,width(),height());
+  /*
+  p.setColour(Colour(0.1, alpha));
+  p.drawRectangle(0,0,width()-1,height()-1);
+  */
+  p.setColour(Colour(1, 0, 0, alpha));
+  p.drawLine(xpos, 0, xpos, height()-1);
+  /*
+  p.setColour(Colour(0.8, alpha));
+  switch(state) {
+  case up:
+    p.drawLine(0,0,0,height()-1);
+    p.drawLine(0,0,width()-1,0);
+    break;
+  case down:
+    p.drawLine(width()-1,0, width()-1,height()-1);
+    p.drawLine(width()-1,height()-1,0, height()-1);
+    break;
+  }
+  */
+  p.setColour(Colour(0.3, alpha));
+  p.drawPoint(0,height()-1);
+  p.drawPoint(width()-1,0);
+}
+
+#ifdef TEST_SLIDER
+//Additional dependency files
+//deps:
+//Required cflags (autoconf vars may be used)
+//cflags:
+//Required link options (autoconf vars may be used)
+//libs:
+#include "test.h"
+
+TEST_BEGIN;
+
+// TODO: Put some testcode here (see test.h for usable macros).
+
+TEST_END;
+
+#endif/*TEST_SLIDER*/
-- 
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