1 /**************************************************************************** 2 ** 3 ** Copyright (C) 2016 The Qt Company Ltd. 4 ** Contact: https://www.qt.io/licensing/ 5 ** 6 ** This file is part of the QtGui module of the Qt Toolkit. 7 ** 8 ** $QT_BEGIN_LICENSE:LGPL$ 9 ** Commercial License Usage 10 ** Licensees holding valid commercial Qt licenses may use this file in 11 ** accordance with the commercial license agreement provided with the 12 ** Software or, alternatively, in accordance with the terms contained in 13 ** a written agreement between you and The Qt Company. For licensing terms 14 ** and conditions see https://www.qt.io/terms-conditions. For further 15 ** information use the contact form at https://www.qt.io/contact-us. 16 ** 17 ** GNU Lesser General Public License Usage 18 ** Alternatively, this file may be used under the terms of the GNU Lesser 19 ** General Public License version 3 as published by the Free Software 20 ** Foundation and appearing in the file LICENSE.LGPL3 included in the 21 ** packaging of this file. Please review the following information to 22 ** ensure the GNU Lesser General Public License version 3 requirements 23 ** will be met: https://www.gnu.org/licenses/lgpl-3.0.html. 24 ** 25 ** GNU General Public License Usage 26 ** Alternatively, this file may be used under the terms of the GNU 27 ** General Public License version 2.0 or (at your option) the GNU General 28 ** Public license version 3 or any later version approved by the KDE Free 29 ** Qt Foundation. The licenses are as published by the Free Software 30 ** Foundation and appearing in the file LICENSE.GPL2 and LICENSE.GPL3 31 ** included in the packaging of this file. Please review the following 32 ** information to ensure the GNU General Public License requirements will 33 ** be met: https://www.gnu.org/licenses/gpl-2.0.html and 34 ** https://www.gnu.org/licenses/gpl-3.0.html. 35 ** 36 ** $QT_END_LICENSE$ 37 ** 38 ****************************************************************************/ 39 40 #ifndef QBLITTABLE_P_H 41 #define QBLITTABLE_P_H 42 43 // 44 // W A R N I N G 45 // ------------- 46 // 47 // This file is not part of the Qt API. It exists purely as an 48 // implementation detail. This header file may change from version to 49 // version without notice, or even be removed. 50 // 51 // We mean it. 52 // 53 54 #include <QtGui/private/qtguiglobal_p.h> 55 #include <QtCore/qsize.h> 56 #include <QtGui/private/qpixmap_blitter_p.h> 57 58 59 #ifndef QT_NO_BLITTABLE 60 QT_BEGIN_NAMESPACE 61 62 class QImage; 63 class QBlittablePrivate; 64 65 class Q_GUI_EXPORT QBlittable 66 { 67 Q_DECLARE_PRIVATE(QBlittable) 68 public: 69 enum Capability { 70 71 SolidRectCapability = 0x0001, 72 SourcePixmapCapability = 0x0002, 73 SourceOverPixmapCapability = 0x0004, 74 SourceOverScaledPixmapCapability = 0x0008, 75 AlphaFillRectCapability = 0x0010, 76 OpacityPixmapCapability = 0x0020, 77 DrawScaledCachedGlyphsCapability = 0x0040, 78 SubPixelGlyphsCapability = 0x0080, 79 ComplexClipCapability = 0x0100, 80 81 // Internal ones 82 OutlineCapability = 0x0001000 83 }; 84 Q_DECLARE_FLAGS (Capabilities, Capability) 85 86 QBlittable(const QSize &size, Capabilities caps); 87 virtual ~QBlittable(); 88 89 Capabilities capabilities() const; 90 QSize size() const; 91 92 virtual void fillRect(const QRectF &rect, const QColor &color) = 0; 93 virtual void drawPixmap(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect) = 0; alphaFillRect(const QRectF & rect,const QColor & color,QPainter::CompositionMode cmode)94 virtual void alphaFillRect(const QRectF &rect, const QColor &color, QPainter::CompositionMode cmode) { 95 Q_UNUSED(rect); 96 Q_UNUSED(color); 97 Q_UNUSED(cmode); 98 qWarning("Please implement alphaFillRect function in your platform or remove AlphaFillRectCapability from it"); 99 } drawPixmapOpacity(const QRectF & rect,const QPixmap & pixmap,const QRectF & subrect,QPainter::CompositionMode cmode,qreal opacity)100 virtual void drawPixmapOpacity(const QRectF &rect, const QPixmap &pixmap, const QRectF &subrect, QPainter::CompositionMode cmode, qreal opacity) { 101 Q_UNUSED(rect); 102 Q_UNUSED(pixmap); 103 Q_UNUSED(subrect); 104 Q_UNUSED(cmode); 105 Q_UNUSED(opacity); 106 qWarning("Please implement drawPixmapOpacity function in your platform or remove OpacityPixmapCapability from it"); 107 } drawCachedGlyphs(const QPaintEngineState * state,QFontEngine::GlyphFormat glyphFormat,int numGlyphs,const glyph_t * glyphs,const QFixedPoint * positions,QFontEngine * fontEngine)108 virtual bool drawCachedGlyphs(const QPaintEngineState *state, QFontEngine::GlyphFormat glyphFormat, int numGlyphs, const glyph_t *glyphs, const QFixedPoint *positions, QFontEngine *fontEngine) { 109 Q_UNUSED(state); 110 Q_UNUSED(glyphFormat); 111 Q_UNUSED(numGlyphs); 112 Q_UNUSED(glyphs); 113 Q_UNUSED(positions); 114 Q_UNUSED(fontEngine); 115 qWarning("Please implement drawCachedGlyphs function in your platform or remove DrawCachedGlyphsCapability from it"); 116 return true; 117 } 118 119 120 QImage *lock(); 121 void unlock(); 122 123 bool isLocked() const; 124 125 protected: 126 virtual QImage *doLock() = 0; 127 virtual void doUnlock() = 0; 128 QBlittablePrivate *d_ptr; 129 }; 130 131 QT_END_NAMESPACE 132 #endif //QT_NO_BLITTABLE 133 #endif //QBLITTABLE_P_H 134