Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdebase@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 138 insertions, 0 deletions

diff --git a/kcontrol/joystick/poswidget.cpp b/kcontrol/joystick/poswidget.cpp
new file mode 100644
index 000000000..54e619d7a
--- /dev/null
+++ b/kcontrol/joystick/poswidget.cpp
@@ -0,0 +1,138 @@
+/***************************************************************************
+ *   Copyright (C) 2003 by Martin Koller                                   *
+ *   m.koller@surfeu.at                                                    *
+ *   This file is part of the KDE Control Center Module for Joysticks      *
+ *                                                                         *
+ *   This program 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.                                   *
+ *                                                                         *
+ *   This program 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 this program; if not, write to the                         *
+ *   Free Software Foundation, Inc.,                                       *
+ *   51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.             *
+ ***************************************************************************/
+#include "poswidget.h"
+
+#include <qpainter.h>
+
+#define XY_WIDTH 220
+#define MARK_WIDTH 10
+
+//-----------------------------------------------------------------
+
+PosWidget::PosWidget(QWidget *parent, const char *name)
+  : QWidget(parent, name, WRepaintNoErase), x(0), y(0), trace(false)
+{
+  setMinimumSize(XY_WIDTH, XY_WIDTH);
+  setMaximumSize(XY_WIDTH, XY_WIDTH);
+  setPaletteBackgroundColor(Qt::white);
+}
+
+//-----------------------------------------------------------------
+
+void PosWidget::paintEvent(QPaintEvent *)
+{
+  QPainter paint(this);
+
+  paint.drawRect(0, 0, width(), height());
+  paint.setPen(Qt::gray);
+
+  // draw a center grid
+  paint.drawLine(XY_WIDTH/2, 1,
+                 XY_WIDTH/2, XY_WIDTH - 2);
+
+  paint.drawLine(1,            XY_WIDTH/2,
+                 XY_WIDTH - 2, XY_WIDTH/2);
+
+  // draw the current position marker
+  paint.setPen(Qt::blue);
+
+  paint.drawLine(x - MARK_WIDTH/2, y - MARK_WIDTH/2,
+                 x + MARK_WIDTH/2, y + MARK_WIDTH/2);
+
+  paint.drawLine(x - MARK_WIDTH/2, y + MARK_WIDTH/2,
+                 x + MARK_WIDTH/2, y - MARK_WIDTH/2);
+}
+
+//-----------------------------------------------------------------
+
+void PosWidget::changeX(int newX)
+{
+  // transform coordinates from joystick to widget coordinates
+  newX = int((newX/65535.0)*XY_WIDTH + XY_WIDTH/2);
+
+  if ( x == newX ) return;  // avoid unnecessary redraw
+
+  eraseOld();
+
+  x = newX;
+}
+
+//-----------------------------------------------------------------
+
+void PosWidget::changeY(int newY)
+{
+  // transform coordinates from joystick to widget coordinates
+  newY = int((newY/65535.0)*XY_WIDTH + XY_WIDTH/2);
+
+  if ( y == newY ) return;  // avoid unnecessary redraw
+
+  eraseOld();
+
+  y = newY;
+}
+
+//-----------------------------------------------------------------
+
+void PosWidget::showTrace(bool t)
+{
+  trace = t;
+
+  if ( !trace )
+  {
+    erase();
+    update();
+  }
+}
+
+//-----------------------------------------------------------------
+
+void PosWidget::eraseOld()
+{
+  QPainter paint(this);
+
+  //paint.eraseRect(x - MARK_WIDTH/2, y - MARK_WIDTH/2, MARK_WIDTH + 1, MARK_WIDTH + 1);
+
+  // erase previous cross (don't use eraseRect() so that trace flags will be not destroyed so much)
+  paint.setPen(Qt::white);
+
+  paint.drawLine(x - MARK_WIDTH/2, y - MARK_WIDTH/2,
+                 x + MARK_WIDTH/2, y + MARK_WIDTH/2);
+
+  paint.drawLine(x - MARK_WIDTH/2, y + MARK_WIDTH/2,
+                 x + MARK_WIDTH/2, y - MARK_WIDTH/2);
+
+  if ( trace )  // show previous position with a smaller black cross
+  {
+    paint.setPen(Qt::black);
+
+    paint.drawLine(x - 2, y - 2,
+                   x + 2, y + 2);
+
+    paint.drawLine(x - 2, y + 2,
+                   x + 2, y - 2);
+  }
+
+  update();
+}
+
+//-----------------------------------------------------------------
+
+#include "poswidget.moc"