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-rw-r--r--doc/src/images/qt-colors.pngbin3711 -> 11701 bytes
-rw-r--r--doc/src/snippets/colors/colors.pro2
-rw-r--r--doc/src/snippets/colors/main.cpp52
-rw-r--r--doc/src/snippets/colors/window.cpp131
-rw-r--r--doc/src/snippets/colors/window.h53
-rw-r--r--src/gui/painting/qcolor.cpp27
6 files changed, 253 insertions, 12 deletions
diff --git a/doc/src/images/qt-colors.png b/doc/src/images/qt-colors.png
index 524123f705..331c97523f 100644
--- a/doc/src/images/qt-colors.png
+++ b/doc/src/images/qt-colors.png
Binary files differ
diff --git a/doc/src/snippets/colors/colors.pro b/doc/src/snippets/colors/colors.pro
new file mode 100644
index 0000000000..b2cc87d292
--- /dev/null
+++ b/doc/src/snippets/colors/colors.pro
@@ -0,0 +1,2 @@
+HEADERS = window.h
+SOURCES = main.cpp window.cpp
diff --git a/doc/src/snippets/colors/main.cpp b/doc/src/snippets/colors/main.cpp
new file mode 100644
index 0000000000..4e09036ddd
--- /dev/null
+++ b/doc/src/snippets/colors/main.cpp
@@ -0,0 +1,52 @@
+/****************************************************************************
+**
+** 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 documentation 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 <QtGui>
+#include "window.h"
+
+int main(int argc, char *argv[])
+{
+ QApplication app(argc, argv);
+ Window window;
+ window.setFixedSize(640, 215);
+ window.show();
+ return app.exec();
+}
diff --git a/doc/src/snippets/colors/window.cpp b/doc/src/snippets/colors/window.cpp
new file mode 100644
index 0000000000..0cec5f56ec
--- /dev/null
+++ b/doc/src/snippets/colors/window.cpp
@@ -0,0 +1,131 @@
+/****************************************************************************
+**
+** 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 documentation 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 <QtGui>
+#include "window.h"
+
+Window::Window(QWidget *parent)
+ : QWidget(parent)
+{
+ QFont font;
+ font.setPixelSize(12);
+ setFont(font);
+}
+
+void Window::closeEvent(QCloseEvent *event)
+{
+ QPixmap pixmap(size());
+ render(&pixmap);
+ pixmap.save("qt-colors.png");
+
+ event->accept();
+}
+
+void Window::paintEvent(QPaintEvent *)
+{
+ QPainter painter;
+ painter.begin(this);
+
+ int h = 216 / 5;
+ QRect r = QRect(0, 0, 160, h);
+ painter.fillRect(r, Qt::white);
+ painter.setPen(Qt::black);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("white"));
+ r = QRect(0, h, 160, h);
+ painter.fillRect(r, Qt::red);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("red"));
+ r = QRect(0, h*2, 160, h);
+ painter.fillRect(r, Qt::green);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("green"));
+ r = QRect(0, h*3, 160, h);
+ painter.fillRect(r, Qt::blue);
+ painter.setPen(Qt::white);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("blue"));
+
+ r = QRect(160, 0, 160, h);
+ painter.fillRect(r, Qt::black);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("black"));
+ r = QRect(160, h, 160, h);
+ painter.fillRect(r, Qt::darkRed);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkRed"));
+ r = QRect(160, h*2, 160, h);
+ painter.fillRect(r, Qt::darkGreen);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkGreen"));
+ r = QRect(160, h*3, 160, h);
+ painter.fillRect(r, Qt::darkBlue);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkBlue"));
+
+ r = QRect(320, 0, 160, h);
+ painter.fillRect(r, Qt::cyan);
+ painter.setPen(Qt::black);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("cyan"));
+ r = QRect(320, h, 160, h);
+ painter.fillRect(r, Qt::magenta);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("magenta"));
+ r = QRect(320, h*2, 160, h);
+ painter.fillRect(r, Qt::yellow);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("yellow"));
+ r = QRect(320, h*3, 160, h);
+ painter.fillRect(r, Qt::gray);
+ painter.setPen(Qt::white);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("gray"));
+
+ r = QRect(480, 0, 160, h);
+ painter.fillRect(r, Qt::darkCyan);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkCyan"));
+ r = QRect(480, h, 160, h);
+ painter.fillRect(r, Qt::darkMagenta);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkMagenta"));
+ r = QRect(480, h*2, 160, h);
+ painter.fillRect(r, Qt::darkYellow);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkYellow"));
+ r = QRect(480, h*3, 160, h);
+ painter.fillRect(r, Qt::darkGray);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("darkGray"));
+
+ r = QRect(0, h*4, 640, h);
+ painter.fillRect(r, Qt::lightGray);
+ painter.setPen(Qt::black);
+ painter.drawText(r, Qt::AlignCenter, QLatin1String("lightGray"));
+
+ painter.end();
+}
+
diff --git a/doc/src/snippets/colors/window.h b/doc/src/snippets/colors/window.h
new file mode 100644
index 0000000000..3b08b9059f
--- /dev/null
+++ b/doc/src/snippets/colors/window.h
@@ -0,0 +1,53 @@
+/****************************************************************************
+**
+** 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 documentation 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 <QWidget>
+
+class Window : public QWidget
+{
+public:
+ Window(QWidget *parent = 0);
+
+protected:
+ void closeEvent(QCloseEvent *event);
+ void paintEvent(QPaintEvent *event);
+};
+
diff --git a/src/gui/painting/qcolor.cpp b/src/gui/painting/qcolor.cpp
index d9b824bbb2..4da993bb52 100644
--- a/src/gui/painting/qcolor.cpp
+++ b/src/gui/painting/qcolor.cpp
@@ -176,22 +176,25 @@ QT_BEGIN_NAMESPACE
\section1 Predefined Colors
- There are 20 predefined QColors: Qt::white, Qt::black,
- Qt::red, Qt::darkRed, Qt::green, Qt::darkGreen, Qt::blue,
- Qt::darkBlue, Qt::cyan, Qt::darkCyan, Qt::magenta,
- Qt::darkMagenta, Qt::yellow, Qt::darkYellow, Qt::gray,
- Qt::darkGray, Qt::lightGray, Qt::color0, Qt::color1, and
- Qt::transparent.
+ There are 20 predefined QColors described by the Qt::GlobalColor enum,
+ including black, white, primary and secondary colors, darker versions
+ of these colors and three shades of gray. QColor also recognizes a
+ variety of color names; the static colorNames() function returns a
+ QStringList color names that QColor knows about.
\img qt-colors.png Qt Colors
- QColor provides the static colorNames() function which returns a
- QStringList containing the color names Qt knows about.
+ Additionally, the Qt::color0, Qt::color1 and Qt::transparent colors
+ are used for special purposes.
- The colors Qt::color0 (zero pixel value) and Qt::color1 (non-zero
- pixel value) are special colors for drawing in QBitmaps. Painting with
- Qt::color0 sets the bitmap bits to 0 (transparent, i.e. background), and
- painting with Qt::color1 sets the bits to 1 (opaque, i.e. foreground).
+ Qt::color0 (zero pixel value) and Qt::color1 (non-zero pixel value)
+ are special colors for drawing in QBitmaps. Painting with Qt::color0
+ sets the bitmap bits to 0 (transparent; i.e., background), and painting
+ with Qt::color1 sets the bits to 1 (opaque; i.e., foreground).
+
+ Qt::transparent is used to indicate a transparent pixel. When painting
+ with this value, a pixel value will be used that is appropriate for the
+ underlying pixel format in use.
\section1 The HSV Color Model
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-09 17:49:01 +0000