demos/qtdemo/colors.cpp
changeset 0 1918ee327afb
child 4 3b1da2848fc7
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/demos/qtdemo/colors.cpp	Mon Jan 11 14:00:40 2010 +0000
@@ -0,0 +1,374 @@
+/****************************************************************************
+**
+** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the demonstration applications of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#include "colors.h"
+
+#ifndef QT_NO_OPENGL
+    #include <QGLWidget>
+#endif
+//#define QT_NO_OPENGL
+
+// Colors:
+QColor Colors::sceneBg1(QColor(91, 91, 91));
+QColor Colors::sceneBg1Line(QColor(114, 108, 104));
+QColor Colors::sceneBg2(QColor(0, 0, 0));
+QColor Colors::sceneLine(255, 255, 255);
+QColor Colors::paperBg(QColor(100, 100, 100));
+QColor Colors::menuTextFg(QColor(255, 0, 0));
+QColor Colors::buttonBgLow(QColor(255, 255, 255, 90));
+QColor Colors::buttonBgHigh(QColor(255, 255, 255, 20));
+QColor Colors::buttonText(QColor(255, 255, 255));
+QColor Colors::tt_green(QColor(166, 206, 57));
+QColor Colors::fadeOut(QColor(206, 246, 117, 0));
+QColor Colors::heading(QColor(190,230,80));
+QString Colors::contentColor("<font color='#eeeeee'>");
+QString Colors::glVersion("Not detected!");
+
+// Guides:
+int Colors::stageStartY = 8;
+int Colors::stageHeight = 536;
+int Colors::stageStartX = 8;
+int Colors::stageWidth = 785;
+int Colors::contentStartY = 22;
+int Colors::contentHeight = 510;
+
+// Properties:
+bool Colors::openGlRendering = false;
+bool Colors::softwareRendering = false;
+bool Colors::openGlAvailable = true;
+bool Colors::xRenderPresent = true;
+
+bool Colors::noTicker = false;
+bool Colors::noRescale = false;
+bool Colors::noAnimations = false;
+bool Colors::noBlending = false;
+bool Colors::noScreenSync = false;
+bool Colors::fullscreen = false;
+bool Colors::usePixmaps = false;
+bool Colors::useLoop = false;
+bool Colors::showBoundingRect = false;
+bool Colors::showFps = false;
+bool Colors::noAdapt = false;
+bool Colors::noWindowMask = true;
+bool Colors::useButtonBalls = false;
+bool Colors::useEightBitPalette = false;
+bool Colors::noTimerUpdate = false;
+bool Colors::noTickerMorph = false;
+bool Colors::adapted = false;
+bool Colors::verbose = false;
+bool Colors::pause = true;
+int Colors::fps = 60;
+int Colors::menuCount = 18;
+float Colors::animSpeed = 1.0;
+float Colors::animSpeedButtons = 1.0;
+float Colors::benchmarkFps = -1;
+int Colors::tickerLetterCount = 80;
+float Colors::tickerMoveSpeed = 0.4f;
+float Colors::tickerMorphSpeed = 2.5f;
+QString Colors::tickerText = ".EROM ETAERC .SSEL EDOC";
+QString Colors::rootMenuName = "Qt Examples and Demos";
+
+QFont Colors::contentFont()
+{
+    QFont font;
+    font.setStyleStrategy(QFont::PreferAntialias);
+#if defined(Q_OS_MAC)
+    font.setPixelSize(14);
+    font.setFamily("Arial");
+#else
+    font.setPixelSize(13);
+    font.setFamily("Verdana");
+#endif
+    return font;
+}
+
+QFont Colors::headingFont()
+{
+    QFont font;
+    font.setStyleStrategy(QFont::PreferAntialias);
+    font.setPixelSize(23);
+    font.setBold(true);
+    font.setFamily("Verdana");
+    return font;
+}
+
+QFont Colors::buttonFont()
+{
+    QFont font;
+    font.setStyleStrategy(QFont::PreferAntialias);
+#if 0//defined(Q_OS_MAC)
+    font.setPixelSize(11);
+    font.setFamily("Silom");
+#else
+    font.setPixelSize(11);
+    font.setFamily("Verdana");
+#endif
+    return font;
+}
+
+QFont Colors::tickerFont()
+{
+    QFont font;
+    font.setStyleStrategy(QFont::PreferAntialias);
+#if defined(Q_OS_MAC)
+    font.setPixelSize(11);
+    font.setBold(true);
+    font.setFamily("Arial");
+#else
+    font.setPixelSize(10);
+    font.setBold(true);
+    font.setFamily("sans serif");
+#endif
+    return font;
+}
+
+float parseFloat(const QString &argument, const QString &name)
+{
+    if (name.length() == argument.length()){
+        QMessageBox::warning(0, "Arguments",
+                                 QString("No argument number found for ")
+                                 + name
+                                 + ". Remember to put name and value adjacent! (e.g. -fps100)");
+        exit(0);
+    }
+    float value = argument.mid(name.length()).toFloat();
+    return value;
+}
+
+QString parseText(const QString &argument, const QString &name)
+{
+    if (name.length() == argument.length()){
+        QMessageBox::warning(0, "Arguments",
+                                 QString("No argument number found for ")
+                                 + name
+                                 + ". Remember to put name and value adjacent! (e.g. -fps100)");
+        exit(0);
+    }
+    QString value = argument.mid(name.length());
+    return value;
+}
+
+void Colors::parseArgs(int argc, char *argv[])
+{
+    // some arguments should be processed before
+    // others. Handle them now:
+    for (int i=1; i<argc; i++){
+        QString s(argv[i]);
+        if (s == "-verbose")
+            Colors::verbose = true;
+    }
+
+    Colors::detectSystemResources();
+
+    // Handle the rest of the arguments. They may
+    // override attributes already set:
+    for (int i=1; i<argc; i++){
+        QString s(argv[i]);
+        if (s == "-opengl")
+            Colors::openGlRendering = true;
+        else if (s == "-software")
+            Colors::softwareRendering = true;
+        else if (s == "-no-opengl") // support old style
+            Colors::softwareRendering = true;
+        else if (s == "-no-ticker") // support old style
+            Colors::noTicker = true;
+        else if (s.startsWith("-ticker"))
+            Colors::noTicker = !bool(parseFloat(s, "-ticker"));
+        else if (s == "-no-animations")
+            Colors::noAnimations = true; // support old style
+        else if (s.startsWith("-animations"))
+            Colors::noAnimations = !bool(parseFloat(s, "-animations"));
+        else if (s == "-no-adapt")
+            Colors::noAdapt = true;
+        else if (s == "-low")
+            Colors::setLowSettings();
+        else if (s == "-no-rescale")
+            Colors::noRescale = true;
+        else if (s == "-use-pixmaps")
+            Colors::usePixmaps = true;
+        else if (s == "-fullscreen")
+            Colors::fullscreen = true;
+        else if (s == "-show-br")
+            Colors::showBoundingRect = true;
+        else if (s == "-show-fps")
+            Colors::showFps = true;
+        else if (s == "-no-blending")
+            Colors::noBlending = true;
+        else if (s == "-no-sync")
+            Colors::noScreenSync = true;
+        else if (s.startsWith("-menu"))
+            Colors::menuCount = int(parseFloat(s, "-menu"));
+        else if (s.startsWith("-use-timer-update"))
+            Colors::noTimerUpdate = !bool(parseFloat(s, "-use-timer-update"));
+        else if (s.startsWith("-pause"))
+            Colors::pause = bool(parseFloat(s, "-pause"));
+        else if (s == "-no-ticker-morph")
+            Colors::noTickerMorph = true;
+        else if (s == "-use-window-mask")
+            Colors::noWindowMask = false;
+        else if (s == "-use-loop")
+            Colors::useLoop = true;
+        else if (s == "-use-8bit")
+            Colors::useEightBitPalette = true;
+        else if (s.startsWith("-8bit"))
+            Colors::useEightBitPalette = bool(parseFloat(s, "-8bit"));
+        else if (s == "-use-balls")
+            Colors::useButtonBalls = true;
+        else if (s.startsWith("-ticker-letters"))
+            Colors::tickerLetterCount = int(parseFloat(s, "-ticker-letters"));
+        else if (s.startsWith("-ticker-text"))
+            Colors::tickerText = parseText(s, "-ticker-text");
+        else if (s.startsWith("-ticker-speed"))
+            Colors::tickerMoveSpeed = parseFloat(s, "-ticker-speed");
+        else if (s.startsWith("-ticker-morph-speed"))
+            Colors::tickerMorphSpeed = parseFloat(s, "-ticker-morph-speed");
+        else if (s.startsWith("-animation-speed"))
+            Colors::animSpeed = parseFloat(s, "-animation-speed");
+        else if (s.startsWith("-fps"))
+            Colors::fps = int(parseFloat(s, "-fps"));
+        else if (s.startsWith("-h") || s.startsWith("-help")){
+            QMessageBox::warning(0, "Arguments",
+                                 QString("Usage: qtdemo [-verbose] [-no-adapt] [-opengl] [-software] [-fullscreen] [-ticker[0|1]] ")
+                                 + "[-animations[0|1]] [-no-blending] [-no-sync] [-use-timer-update[0|1]] [-pause[0|1]]  "
+                                 + "[-use-window-mask] [-no-rescale] "
+                                 + "[-use-pixmaps] [-show-fps] [-show-br] [-8bit[0|1]] [-menu<int>] [-use-loop] [-use-balls] "
+                                 + "[-animation-speed<float>] [-fps<int>] "
+                                 + "[-low] [-ticker-letters<int>] [-ticker-speed<float>] [-no-ticker-morph] "
+                                 + "[-ticker-morph-speed<float>] [-ticker-text<string>]");
+            exit(0);
+        } else if (s == "-verbose") {
+            // this option was already handled above
+        } else{
+            QMessageBox::warning(0, "QtDemo", QString("Unrecognized argument:\n") + s);
+            exit(0);
+        }
+    }
+
+    Colors::postConfigure();
+}
+
+void Colors::setLowSettings()
+{
+    Colors::openGlRendering = false;
+    Colors::softwareRendering = true;
+    Colors::noTicker = true;
+    Colors::noTimerUpdate = true;
+    Colors::fps = 30;
+    Colors::usePixmaps = true;
+    Colors::noAnimations = true;
+    Colors::noBlending = true;
+}
+
+void Colors::detectSystemResources()
+{
+#ifndef QT_NO_OPENGL
+    if (QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_2_0)
+        Colors::glVersion = "2.0 or higher";
+    else if (QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_1_5)
+        Colors::glVersion = "1.5";
+    else if (QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_1_4)
+        Colors::glVersion = "1.4";
+    else if (QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_1_3)
+        Colors::glVersion = "1.3 or lower";
+    if (Colors::verbose)
+        qDebug() << "- OpenGL version:" << Colors::glVersion;
+
+    QGLWidget glw;
+    if (!QGLFormat::hasOpenGL()
+        || !glw.format().directRendering()
+        || !(QGLFormat::openGLVersionFlags() & QGLFormat::OpenGL_Version_1_5)
+        || glw.depth() < 24
+    )
+#else
+    if (Colors::verbose)
+        qDebug() << "- OpenGL not supported by current build of Qt";
+#endif
+    {
+        Colors::openGlAvailable = false;
+        if (Colors::verbose)
+            qDebug("- OpenGL not recommended on this system");
+    }
+
+#if defined(Q_WS_X11)
+    // check if X render is present:
+    QPixmap tmp(1, 1);
+    if (!tmp.x11PictureHandle() && tmp.paintEngine()->type() == QPaintEngine::X11){
+        Colors::xRenderPresent = false;
+        if (Colors::verbose)
+            qDebug("- X render not present");
+    }
+
+#endif
+
+    QWidget w;
+    if (Colors::verbose)
+        qDebug() << "- Color depth: " << QString::number(w.depth());
+}
+
+void Colors::postConfigure()
+{
+    if (!Colors::noAdapt){
+        QWidget w;
+        if (w.depth() < 16){
+            Colors::useEightBitPalette = true;
+            Colors::adapted = true;
+            if (Colors::verbose)
+                qDebug() << "- Adapt: Color depth less than 16 bit. Using 8 bit palette";
+        }
+
+        if (!Colors::xRenderPresent){
+            Colors::setLowSettings();
+            Colors::adapted = true;
+            if (Colors::verbose)
+                qDebug() << "- Adapt: X renderer not present. Using low settings";
+        }
+    }
+
+    if (!Colors::openGlRendering && !Colors::softwareRendering){
+        // The user has not decided rendering system. So we do it instead:
+        if (Colors::openGlAvailable)
+            Colors::openGlRendering = true;
+        else
+            Colors::softwareRendering = true;
+    }
+}
+
+