From 7776aa97fc1c69a8f28ba4bab7387fb96be9a6e4 Mon Sep 17 00:00:00 2001
From: Bent Bisballe Nyeng <deva@aasimon.org>
Date: Mon, 8 Sep 2014 20:48:38 +0200
Subject: Import dgedit from drumgizmo repository (split into its own project).

---
 src/canvaswidget.cc | 93 +++++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 93 insertions(+)
 create mode 100644 src/canvaswidget.cc

(limited to 'src/canvaswidget.cc')

diff --git a/src/canvaswidget.cc b/src/canvaswidget.cc
new file mode 100644
index 0000000..35b3684
--- /dev/null
+++ b/src/canvaswidget.cc
@@ -0,0 +1,93 @@
+/* -*- Mode: C++; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/***************************************************************************
+ *            canvaswidget.cc
+ *
+ *  Fri Aug  1 19:31:32 CEST 2014
+ *  Copyright 2014 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 "canvaswidget.h"
+
+#include <QGridLayout>
+
+#define MAXVAL 10000000L
+#define SINGLESTEP MAXVAL/100000
+#define PAGESTEP MAXVAL/10000
+
+CanvasWidget::CanvasWidget(QWidget *parent)
+{
+  QGridLayout *g = new QGridLayout(this);
+
+  canvas = new Canvas(this);
+  g->addWidget(canvas, 0, 0);
+
+  yoffset = new QScrollBar(Qt::Vertical);
+  yoffset->setRange(0, MAXVAL);
+  yoffset->setPageStep(PAGESTEP);
+  yoffset->setSingleStep(SINGLESTEP);
+  connect(yoffset, SIGNAL(valueChanged(int)), this, SLOT(setYOffset(int)));
+  g->addWidget(yoffset, 0, 1);
+
+  yscale = new ZoomSlider(Qt::Vertical);
+  yscale->setRange(0.9, 30);
+  yscale->setTickWidth(0.1);
+  connect(yscale, SIGNAL(valueChanged(float)), this, SLOT(setYScale(float)));
+  g->addWidget(yscale, 0, 2);
+
+  xoffset = new QScrollBar(Qt::Horizontal);
+  xoffset->setRange(0, MAXVAL);
+  xoffset->setPageStep(PAGESTEP);
+  xoffset->setSingleStep(SINGLESTEP);
+  connect(xoffset, SIGNAL(valueChanged(int)), this, SLOT(setXOffset(int)));
+  g->addWidget(xoffset, 1, 0);
+
+  xscale = new ZoomSlider(Qt::Horizontal);
+  xscale->setRange(1, 0.0001);
+  xscale->setTickWidth(0.0001);
+  connect(xscale, SIGNAL(valueChanged(float)), this, SLOT(setXScale(float)));
+  g->addWidget(xscale, 2, 0);
+
+  setLayout(g);
+}
+
+void CanvasWidget::setXScale(float val)
+{
+  canvas->setXScale(val);
+}
+
+void CanvasWidget::setYScale(float val)
+{
+  canvas->setYScale(val);
+}
+
+void CanvasWidget::setXOffset(int of)
+{
+  // range 0.0 - 1.0
+  float val = (float)of/(float)MAXVAL;
+  canvas->setXOffset(val);
+}
+
+void CanvasWidget::setYOffset(int of)
+{
+  // range 0.0 - 1.0
+  float val = (float)(of * -1 + MAXVAL)/(float)MAXVAL;
+  canvas->setYOffset(val);
+}
-- 
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