qplatformpixmap.cpp

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1 /**************************************************************************** -

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4 ** Contact: http://www.qt.io/licensing/ -

5 ** -

6 ** This file is part of the QtGui module of the Qt Toolkit. -

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8 ** $QT_BEGIN_LICENSE:LGPL21$ -

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30 ** $QT_END_LICENSE$ -

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32 ****************************************************************************/ -

33 -

34 #include "qplatformpixmap.h" -

35 #include <qpa/qplatformintegration.h> -

36 #include <QtCore/qbuffer.h> -

37 #include <QtGui/qbitmap.h> -

38 #include <QtGui/qimagereader.h> -

39 #include <private/qguiapplication_p.h> -

40 #include <private/qimagepixmapcleanuphooks_p.h> -

41 -

42 QT_BEGIN_NAMESPACE -

43 -

44 /*! -

45 \class QPlatformPixmap -

46 \since 5.0 -

47 \internal -

48 \preliminary -

49 \ingroup qpa -

50 -

51 \brief The QPlatformPixmap class provides an abstraction for native pixmaps. -

52 */ -

53 QPlatformPixmap *QPlatformPixmap::create(int w, int h, PixelType type) -

54 { -

55 QPlatformPixmap *data = QGuiApplicationPrivate::platformIntegration()->createPlatformPixmap(static_cast<QPlatformPixmap::PixelType>(type)); -

56 data->resize(w, h); -

return data;

never executed: return data;

58 } -

59 -

60 -

61 QPlatformPixmap::QPlatformPixmap(PixelType pixelType, int objectId) -

62 : w(0), -

63 h(0), -

64 d(0), -

65 is_null(true), -

66 ref(0), -

67 detach_no(0), -

68 type(pixelType), -

69 id(objectId), -

70 ser_no(0), -

71 is_cached(false) -

72 { -

}

never executed: end of block

74 -

75 QPlatformPixmap::~QPlatformPixmap() -

76 { -

77 // Sometimes the pixmap cleanup hooks will be called from derrived classes, which will -

78 // then set is_cached to false. For example, on X11 Qt GUI needs to delete the GLXPixmap -

79 // or EGL Pixmap Surface for a given pixmap _before_ the native X11 pixmap is deleted, -

80 // otherwise some drivers will leak the GL surface. In this case, QX11PlatformPixmap will -

81 // call the cleanup hooks itself before deleting the native pixmap and set is_cached to -

82 // false. -

if (is_cached) {

is_cached	Description
TRUE	never evaluated
FALSE	never evaluated

84 QImagePixmapCleanupHooks::executePlatformPixmapDestructionHooks(this); -

85 is_cached = false; -

}

never executed: end of block

}

never executed: end of block

88 -

89 QPlatformPixmap *QPlatformPixmap::createCompatiblePlatformPixmap() const -

90 { -

91 QPlatformPixmap *d = QGuiApplicationPrivate::platformIntegration()->createPlatformPixmap(pixelType()); -

return d;

never executed: return d;

93 } -

94 -

95 static QImage makeBitmapCompliantIfNeeded(QPlatformPixmap *d, const QImage &image, Qt::ImageConversionFlags flags) -

96 { -

if (d->pixelType() == QPlatformPixmap::BitmapType) {

d->pixelType()...ap::BitmapType	Description
TRUE	never evaluated
FALSE	never evaluated

98 QImage img = image.convertToFormat(QImage::Format_MonoLSB, flags); -

99 -

100 // make sure image.color(0) == Qt::color0 (white) -

101 // and image.color(1) == Qt::color1 (black) -

102 const QRgb c0 = QColor(Qt::black).rgb(); -

103 const QRgb c1 = QColor(Qt::white).rgb(); -

104

if (img.color(0) == c0 && img.color(1) == c1) {

img.color(0) == c0	Description
TRUE	never evaluated
FALSE	never evaluated

img.color(1) == c1	Description
TRUE	never evaluated
FALSE	never evaluated

105 img.invertPixels(); -

106 img.setColor(0, c1); -

107 img.setColor(1, c0); -

108

}

never executed: end of block

109

return img;

never executed: return img;

110 } -

111 -

112

return image;

never executed: return image;

113 } -

114 -

115 void QPlatformPixmap::fromImageReader(QImageReader *imageReader, -

116 Qt::ImageConversionFlags flags) -

117 { -

118 const QImage image = imageReader->read(); -

119 fromImage(image, flags); -

120

}

never executed: end of block

121 -

122 bool QPlatformPixmap::fromFile(const QString &fileName, const char *format, -

123 Qt::ImageConversionFlags flags) -

124 { -

125 QImage image = QImageReader(fileName, format).read(); -

126

if (image.isNull())

image.isNull()	Description
TRUE	never evaluated
FALSE	never evaluated

127

return false;

never executed: return false;

128 fromImage(makeBitmapCompliantIfNeeded(this, image, flags), flags); -

129

return !isNull();

never executed: return !isNull();

130 } -

131 -

132 bool QPlatformPixmap::fromData(const uchar *buf, uint len, const char *format, Qt::ImageConversionFlags flags) -

133 { -

134 QByteArray a = QByteArray::fromRawData(reinterpret_cast<const char *>(buf), len); -

135 QBuffer b(&a); -

136 b.open(QIODevice::ReadOnly); -

137 QImage image = QImageReader(&b, format).read(); -

138

if (image.isNull())

image.isNull()	Description
TRUE	never evaluated
FALSE	never evaluated

139

return false;

never executed: return false;

140 fromImage(makeBitmapCompliantIfNeeded(this, image, flags), flags); -

141

return !isNull();

never executed: return !isNull();

142 } -

143 -

144 void QPlatformPixmap::copy(const QPlatformPixmap *data, const QRect &rect) -

145 { -

146 fromImage(data->toImage(rect), Qt::NoOpaqueDetection); -

147

}

never executed: end of block

148 -

149 bool QPlatformPixmap::scroll(int dx, int dy, const QRect &rect) -

150 { -

151 Q_UNUSED(dx); -

152 Q_UNUSED(dy); -

153 Q_UNUSED(rect); -

154

return false;

never executed: return false;

155 } -

156 -

157 QPixmap QPlatformPixmap::transformed(const QTransform &matrix, -

158 Qt::TransformationMode mode) const -

159 { -

160

return QPixmap::fromImage(toImage().transformed(matrix, mode));

never executed: return QPixmap::fromImage(toImage().transformed(matrix, mode));

161 } -

162 -

163 void QPlatformPixmap::setSerialNumber(int serNo) -

164 { -

165 ser_no = serNo; -

166

}

never executed: end of block

167 -

168 void QPlatformPixmap::setDetachNumber(int detNo) -

169 { -

170 detach_no = detNo; -

171

}

never executed: end of block

172 -

173 QImage QPlatformPixmap::toImage(const QRect &rect) const -

174 { -

175

if (rect.contains(QRect(0, 0, w, h)))

rect.contains(...t(0, 0, w, h))	Description
TRUE	never evaluated
FALSE	never evaluated

176

return toImage();

never executed: return toImage();

177 else -

178

return toImage().copy(rect);

never executed: return toImage().copy(rect);

179 } -

180 -

181 QImage* QPlatformPixmap::buffer() -

182 { -

183

return 0;

never executed: return 0;

184 } -

185 -

186 -

187 QT_END_NAMESPACE -

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