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Removed src/gui/opengl/qopenglcolormap.*

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The QGLColormap API was used by QGLWidget, not very relevant in the Qt 5
core API.

Change-Id: I3c75ac09cbc292e707aea62759c09277f834de8d
Reviewed-on: http://codereview.qt-project.org/6333
Sanity-Review: Qt Sanity Bot <qt_sanity_bot@ovi.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>
This commit is contained in:
Samuel Rødal 2011-10-10 14:16:23 +02:00 committed by Qt by Nokia
parent d45502c2aa
commit ac03f59ccc
3 changed files with 0 additions and 404 deletions
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2
src/gui/opengl/opengl.pri
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@ -24,7 +24,6 @@ HEADERS += opengl/qopengl.h \
opengl/qopengltextureglyphcache_p.h \
opengl/qopenglshadercache_p.h \
opengl/qopenglshadercache_meego_p.h \
opengl/qopenglcolormap.h \
opengl/qtriangulator_p.h \
opengl/qrbtree_p.h
@ -42,7 +41,6 @@ SOURCES += opengl/qopengl.cpp \
opengl/qopenglcustomshaderstage.cpp \
opengl/qopengltriangulatingstroker.cpp \
opengl/qopengltextureglyphcache.cpp \
opengl/qopenglcolormap.cpp \
opengl/qtriangulator.cpp
#INCLUDEPATH += ../3rdparty/harfbuzz/src

297
src/gui/opengl/qopenglcolormap.cpp
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@ -1,297 +0,0 @@
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
/*!
\class QOpenGLColormap
\brief The QOpenGLColormap class is used for installing custom colormaps into
a QOpenGLWidget.
\module OpenGL
\ingroup painting-3D
\ingroup shared
QOpenGLColormap provides a platform independent way of specifying and
installing indexed colormaps for a QOpenGLWidget. QOpenGLColormap is
especially useful when using the OpenGL color-index mode.
Under X11 you must use an X server that supports either a \c
PseudoColor or \c DirectColor visual class. If your X server
currently only provides a \c GrayScale, \c TrueColor, \c
StaticColor or \c StaticGray visual, you will not be able to
allocate colorcells for writing. If this is the case, try setting
your X server to 8 bit mode. It should then provide you with at
least a \c PseudoColor visual. Note that you may experience
colormap flashing if your X server is running in 8 bit mode.
The size() of the colormap is always set to 256
colors. Note that under Windows you can also install colormaps
in child widgets.
This class uses \l{implicit sharing} as a memory and speed
optimization.
Example of use:
\snippet doc/src/snippets/code/src_opengl_qopenglcolormap.cpp 0
\sa QOpenGLWidget::setColormap(), QOpenGLWidget::colormap()
*/
/*!
\fn Qt::HANDLE QOpenGLColormap::handle()
\internal
Returns the handle for this color map.
*/
/*!
\fn void QOpenGLColormap::setHandle(Qt::HANDLE handle)
\internal
Sets the handle for this color map to \a handle.
*/
#include "qopenglcolormap.h"
QT_BEGIN_NAMESPACE
QOpenGLColormap::QOpenGLColormapData QOpenGLColormap::shared_null = { Q_BASIC_ATOMIC_INITIALIZER(1), 0, 0 };
/*!
Construct a QOpenGLColormap.
*/
QOpenGLColormap::QOpenGLColormap()
: d(&shared_null)
{
d->ref.ref();
}
/*!
Construct a shallow copy of \a map.
*/
QOpenGLColormap::QOpenGLColormap(const QOpenGLColormap &map)
: d(map.d)
{
d->ref.ref();
}
/*!
Dereferences the QOpenGLColormap and deletes it if this was the last
reference to it.
*/
QOpenGLColormap::~QOpenGLColormap()
{
if (!d->ref.deref())
cleanup(d);
}
void QOpenGLColormap::cleanup(QOpenGLColormap::QOpenGLColormapData *x)
{
delete x->cells;
x->cells = 0;
delete x;
}
/*!
Assign a shallow copy of \a map to this QOpenGLColormap.
*/
QOpenGLColormap & QOpenGLColormap::operator=(const QOpenGLColormap &map)
{
map.d->ref.ref();
if (!d->ref.deref())
cleanup(d);
d = map.d;
return *this;
}
/*!
\fn void QOpenGLColormap::detach()
\internal
Detaches this QOpenGLColormap from the shared block.
*/
void QOpenGLColormap::detach_helper()
{
QOpenGLColormapData *x = new QOpenGLColormapData;
x->ref = 1;
x->cmapHandle = 0;
x->cells = 0;
if (d->cells) {
x->cells = new QVector<QRgb>(256);
*x->cells = *d->cells;
}
if (!d->ref.deref())
cleanup(d);
d = x;
}
/*!
Set cell at index \a idx in the colormap to color \a color.
*/
void QOpenGLColormap::setEntry(int idx, QRgb color)
{
detach();
if (!d->cells)
d->cells = new QVector<QRgb>(256);
d->cells->replace(idx, color);
}
/*!
Set an array of cells in this colormap. \a count is the number of
colors that should be set, \a colors is the array of colors, and
\a base is the starting index. The first element in \a colors
is set at \a base in the colormap.
*/
void QOpenGLColormap::setEntries(int count, const QRgb *colors, int base)
{
detach();
if (!d->cells)
d->cells = new QVector<QRgb>(256);
Q_ASSERT_X(colors && base >= 0 && (base + count) <= d->cells->size(), "QOpenGLColormap::setEntries",
"preconditions not met");
for (int i = 0; i < count; ++i)
setEntry(base + i, colors[i]);
}
/*!
Returns the QRgb value in the colorcell with index \a idx.
*/
QRgb QOpenGLColormap::entryRgb(int idx) const
{
if (d == &shared_null || !d->cells)
return 0;
else
return d->cells->at(idx);
}
/*!
\overload
Set the cell with index \a idx in the colormap to color \a color.
*/
void QOpenGLColormap::setEntry(int idx, const QColor &color)
{
setEntry(idx, color.rgb());
}
/*!
Returns the QRgb value in the colorcell with index \a idx.
*/
QColor QOpenGLColormap::entryColor(int idx) const
{
if (d == &shared_null || !d->cells)
return QColor();
else
return QColor(d->cells->at(idx));
}
/*!
Returns true if the colormap is empty or it is not in use
by a QOpenGLWidget; otherwise returns false.
A colormap with no color values set is considered to be empty.
For historical reasons, a colormap that has color values set
but which is not in use by a QOpenGLWidget is also considered empty.
Compare size() with zero to determine if the colormap is empty
regardless of whether it is in use by a QOpenGLWidget or not.
\sa size()
*/
bool QOpenGLColormap::isEmpty() const
{
return d == &shared_null || d->cells == 0 || d->cells->size() == 0 || d->cmapHandle == 0;
}
/*!
Returns the number of colorcells in the colormap.
*/
int QOpenGLColormap::size() const
{
return d->cells ? d->cells->size() : 0;
}
/*!
Returns the index of the color \a color. If \a color is not in the
map, -1 is returned.
*/
int QOpenGLColormap::find(QRgb color) const
{
if (d->cells)
return d->cells->indexOf(color);
return -1;
}
/*!
Returns the index of the color that is the closest match to color
\a color.
*/
int QOpenGLColormap::findNearest(QRgb color) const
{
int idx = find(color);
if (idx >= 0)
return idx;
int mapSize = size();
int mindist = 200000;
int r = qRed(color);
int g = qGreen(color);
int b = qBlue(color);
int rx, gx, bx, dist;
for (int i = 0; i < mapSize; ++i) {
QRgb ci = d->cells->at(i);
rx = r - qRed(ci);
gx = g - qGreen(ci);
bx = b - qBlue(ci);
dist = rx * rx + gx * gx + bx * bx; // calculate distance
if (dist < mindist) { // minimal?
mindist = dist;
idx = i;
}
}
return idx;
}
QT_END_NAMESPACE

105
src/gui/opengl/qopenglcolormap.h
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@ -1,105 +0,0 @@
/****************************************************************************
**
** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
** All rights reserved.
** Contact: Nokia Corporation (qt-info@nokia.com)
**
** This file is part of the QtGui module of the Qt Toolkit.
**
** $QT_BEGIN_LICENSE:LGPL$
** GNU Lesser General Public License Usage
** 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.
**
** GNU General Public License Usage
** Alternatively, this file may be used under the terms of the GNU General
** Public License version 3.0 as published by the Free Software Foundation
** and appearing in the file LICENSE.GPL included in the packaging of this
** file. Please review the following information to ensure the GNU General
** Public License version 3.0 requirements will be met:
** http://www.gnu.org/copyleft/gpl.html.
**
** Other Usage
** Alternatively, this file may be used in accordance with the terms and
** conditions contained in a signed written agreement between you and Nokia.
**
**
**
**
**
** $QT_END_LICENSE$
**
****************************************************************************/
#ifndef QOPENGLCOLORMAP_H
#define QOPENGLCOLORMAP_H
#include <QtGui/qcolor.h>
#include <QtCore/qvector.h>
QT_BEGIN_HEADER
QT_BEGIN_NAMESPACE
QT_MODULE(Gui)
class Q_GUI_EXPORT QOpenGLColormap
{
public:
QOpenGLColormap();
QOpenGLColormap(const QOpenGLColormap &);
~QOpenGLColormap();
QOpenGLColormap &operator=(const QOpenGLColormap &);
bool isEmpty() const;
int size() const;
void detach();
void setEntries(int count, const QRgb * colors, int base = 0);
void setEntry(int idx, QRgb color);
void setEntry(int idx, const QColor & color);
QRgb entryRgb(int idx) const;
QColor entryColor(int idx) const;
int find(QRgb color) const;
int findNearest(QRgb color) const;
protected:
Qt::HANDLE handle() { return d ? d->cmapHandle : 0; }
void setHandle(Qt::HANDLE ahandle) { d->cmapHandle = ahandle; }
private:
struct QOpenGLColormapData {
QBasicAtomicInt ref;
QVector<QRgb> *cells;
Qt::HANDLE cmapHandle;
};
QOpenGLColormapData *d;
static struct QOpenGLColormapData shared_null;
static void cleanup(QOpenGLColormapData *x);
void detach_helper();
friend class QOpenGLWidget;
friend class QOpenGLWidgetPrivate;
};
inline void QOpenGLColormap::detach()
{
if (d->ref != 1)
detach_helper();
}
QT_END_NAMESPACE
QT_END_HEADER
#endif // QOPENGLCOLORMAP_H