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gtk3-tqt-engine
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Code Issues Releases Wiki Activity

Rectangle drawing via Cairo now functions

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pull/1/head
Timothy Pearson 12 years ago
parent 827cba3a39
commit c2a1262df8
5 changed files with 492 additions and 49 deletions
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18
tdegtk/Makefile.am
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@ -7,8 +7,7 @@ source_h = \
$(srcdir)/tdegtk-draw.h \
$(srcdir)/tdegtk-engine.h \
$(srcdir)/tdegtk-support.h \
$(srcdir)/tdegtk-types.h \
$(srcdir)/tqtcairopainter.h
$(srcdir)/tdegtk-types.h
source_c = \
$(srcdir)/exponential-blur.c \
@ -18,8 +17,7 @@ source_c = \
$(srcdir)/tdegtk-draw.c \
$(srcdir)/tdegtk-engine.c \
$(srcdir)/tdegtk-support.c \
$(srcdir)/tdegtk-theme.c \
$(srcdir)/tqtcairopainter.cpp
$(srcdir)/tdegtk-theme.c
enginedir = $(libdir)/gtk-3.0/$(GTK_VERSION)/theming-engines
engine_LTLIBRARIES = libtdegtk.la
@ -27,8 +25,18 @@ engine_LTLIBRARIES = libtdegtk.la
libtdegtk_la_SOURCES = $(source_h) $(source_c)
libtdegtk_la_CFLAGS = $(TDEGTK_CFLAGS)
libtdegtk_la_CXXFLAGS = $(TDEGTK_CXXFLAGS) -I/usr/include/tqt -I/usr/include/tqt3 $(TDEGTK_CFLAGS)
libtdegtk_la_LIBADD = $(TDEGTK_LIBADD)
libtdegtk_la_LDFLAGS = $(TDEGTK_LDFLAGS)
lib_LTLIBRARIES = libtqtcairo.la
libtqtcairo_la_SOURCES = tqtcairopainter.h tqtcairopainter.cpp
libtqtcairo_la_CFLAGS = $(TDEGTK_CFLAGS)
libtqtcairo_la_CXXFLAGS = $(TDEGTK_CXXFLAGS) -I/usr/include/tqt -I/usr/include/tqt3 $(TDEGTK_CFLAGS)
libtqtcairo_la_LIBADD = $(TDEGTK_LIBADD)
libtqtcairo_la_LDFLAGS = $(TDEGTK_LDFLAGS)

432
tdegtk/tqtcairopainter.cpp
Unescape View File

@ -29,6 +29,317 @@
#include "tqpaintdevicemetrics.h"
#undef Qt
#define CAIRO_PIXEL_OFFSET (0.5)
#define SET_BIT(x, y) (x |= 1 << y)
#define TEST_BIT(x, y) ((x & (1 << y)) >> y)
cairo_surface_t* TQImageToCairoSurface(TQImage origimg) {
cairo_surface_t* ret;
TQImage img;
if (origimg.depth() < 24) {
img = origimg.convertDepth(32);
}
else {
img = origimg;
}
cairo_format_t cairo_format;
int depth = img.depth();
if (depth == 32) {
cairo_format = CAIRO_FORMAT_ARGB32;
}
else if (depth == 24) {
cairo_format = CAIRO_FORMAT_RGB24;
}
else {
cairo_format = CAIRO_FORMAT_RGB24;
}
int stride = cairo_format_stride_for_width(cairo_format, img.width());
ret = cairo_image_surface_create_for_data(img.bits(), cairo_format, img.width(), img.height(), stride);
return ret;
}
TQImage CairoSurfaceToTQImage(cairo_surface_t* surface) {
cairo_surface_flush(surface);
cairo_format_t cairo_format = cairo_image_surface_get_format(surface);
int height = cairo_image_surface_get_height(surface);
int width = cairo_image_surface_get_width(surface);
int depth;
if (cairo_format == CAIRO_FORMAT_ARGB32) {
depth = 32;
}
else if (cairo_format == CAIRO_FORMAT_RGB24) {
depth = 24;
}
else {
// FIXME
// Force Cairo to convert the surface to a format that TQImage can read!
printf("[WARNING] Tried to convert a Cairo surface of format %d to a TQImage (NULL image returned!)\n\r", cairo_format); fflush(stdout);
return TQImage();
}
return TQImage(cairo_image_surface_get_data(surface), width, height, depth, (TQRgb*)NULL, 0, TQImage::BigEndian);
}
void TQt3CairoPaintDevice::dualStrokePen() {
if (m_bgColorMode == TQt::OpaqueMode) {
// Draw background
cairo_save(m_painter);
updatePen(TRUE);
cairo_stroke(m_painter);
cairo_restore(m_painter);
}
// Draw foreground
updatePen(FALSE);
cairo_stroke(m_painter);
}
void TQt3CairoPaintDevice::dualStrokeBrush() {
if (m_bgColorMode == TQt::OpaqueMode) {
// Draw background
cairo_save(m_painter);
updateBrush(TRUE);
cairo_fill(m_painter);
cairo_restore(m_painter);
}
// Draw foreground
updateBrush(FALSE);
cairo_fill(m_painter);
}
void TQt3CairoPaintDevice::updatePen(bool backgroundStroke) {
if (!m_painter) {
return;
}
int ps = m_pen.style();
double dashes[10]; // custom pen dashes
int dash_len = 0; // length of dash list
int dash_offset = 0;
cairo_line_cap_t cp = CAIRO_LINE_CAP_BUTT;
cairo_line_join_t jn = CAIRO_LINE_JOIN_MITER;
/*
We are emulating Windows here. Windows treats m_pen.width() == 1
(or 0) as a very special case. The fudge variable unifies this
case with the general case.
*/
int dot = m_pen.width(); // width of a dot
int fudge = 1;
//bool allow_zero_lw = TRUE;
bool allow_zero_lw = FALSE;
if ( dot <= 1 ) {
dot = 3;
fudge = 2;
}
switch( ps ) {
case TQPainter::NoPen:
case TQPainter::SolidLine:
break;
case TQPainter::DashLine:
dashes[0] = fudge * 3 * dot;
dashes[1] = fudge * dot;
dash_len = 2;
allow_zero_lw = FALSE;
break;
case TQPainter::DotLine:
dashes[0] = dot;
dashes[1] = dot;
dash_len = 2;
allow_zero_lw = FALSE;
break;
case TQPainter::DashDotLine:
dashes[0] = 3 * dot;
dashes[1] = fudge * dot;
dashes[2] = dot;
dashes[3] = fudge * dot;
dash_len = 4;
allow_zero_lw = FALSE;
break;
case TQPainter::DashDotDotLine:
dashes[0] = 3 * dot;
dashes[1] = dot;
dashes[2] = dot;
dashes[3] = dot;
dashes[4] = dot;
dashes[5] = dot;
dash_len = 6;
allow_zero_lw = FALSE;
break;
case TQPainter::FineDotLine:
dot = 1;
dashes[0] = dot;
dashes[1] = dot;
dash_len = 2;
allow_zero_lw = FALSE;
}
Q_ASSERT( dash_len <= (int) sizeof(dashes) );
switch ( m_pen.capStyle() ) {
case TQPainter::SquareCap:
cp = CAIRO_LINE_CAP_SQUARE;
break;
case TQPainter::RoundCap:
cp = CAIRO_LINE_CAP_ROUND;
break;
case TQPainter::FlatCap:
default:
cp = CAIRO_LINE_CAP_BUTT;
break;
}
switch ( m_pen.joinStyle() ) {
case TQPainter::BevelJoin:
jn = CAIRO_LINE_JOIN_BEVEL;
break;
case TQPainter::RoundJoin:
jn = CAIRO_LINE_JOIN_ROUND;
break;
case TQPainter::MiterJoin:
default:
jn = CAIRO_LINE_JOIN_MITER;
break;
}
if (backgroundStroke) {
dash_len = 0;
}
cairo_set_dash(m_painter, dashes, dash_len, dash_offset);
cairo_set_line_cap(m_painter, cp);
cairo_set_line_join(m_painter, jn);
cairo_set_line_width(m_painter, ((!allow_zero_lw) && (m_pen.width() == 0)) ? 1 : m_pen.width());
TQRgb color = (backgroundStroke)?m_bgColor.rgb():m_pen.color().rgb();
cairo_set_source_rgba(m_painter, tqRed(color), tqGreen(color), tqBlue(color), tqAlpha(color));
}
void TQt3CairoPaintDevice::updateBrush(bool backgroundStroke) {
if (!m_painter) {
return;
}
if (backgroundStroke) {
TQRgb color = m_bgColor.rgb();
cairo_pattern_t* pattern = cairo_pattern_create_rgba(tqRed(color), tqGreen(color), tqBlue(color), tqAlpha(color));
cairo_set_source(m_painter, pattern);
cairo_pattern_set_extend(cairo_get_source(m_painter), CAIRO_EXTEND_REPEAT);
cairo_pattern_destroy(pattern);
}
else {
static const uchar dense1_pat[] = { 0xff, 0xbb, 0xff, 0xff, 0xff, 0xbb, 0xff, 0xff };
static const uchar dense2_pat[] = { 0x77, 0xff, 0xdd, 0xff, 0x77, 0xff, 0xdd, 0xff };
static const uchar dense3_pat[] = { 0x55, 0xbb, 0x55, 0xee, 0x55, 0xbb, 0x55, 0xee };
static const uchar dense4_pat[] = { 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa, 0x55, 0xaa };
static const uchar dense5_pat[] = { 0xaa, 0x44, 0xaa, 0x11, 0xaa, 0x44, 0xaa, 0x11 };
static const uchar dense6_pat[] = { 0x88, 0x00, 0x22, 0x00, 0x88, 0x00, 0x22, 0x00 };
static const uchar dense7_pat[] = { 0x00, 0x44, 0x00, 0x00, 0x00, 0x44, 0x00, 0x00 };
static const uchar hor_pat[] = { // horizontal pattern
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xff, 0xff, 0xff,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0xff, 0xff, 0xff, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 };
static const uchar ver_pat[] = { // vertical pattern
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20 };
static const uchar cross_pat[] = { // cross pattern
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0xff, 0xff, 0xff,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0xff, 0xff, 0xff, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0xff, 0xff, 0xff,
0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20,
0x08, 0x82, 0x20, 0xff, 0xff, 0xff, 0x08, 0x82, 0x20, 0x08, 0x82, 0x20 };
static const uchar bdiag_pat[] = { // backward diagonal pattern
0x20, 0x20, 0x10, 0x10, 0x08, 0x08, 0x04, 0x04, 0x02, 0x02, 0x01, 0x01,
0x80, 0x80, 0x40, 0x40, 0x20, 0x20, 0x10, 0x10, 0x08, 0x08, 0x04, 0x04,
0x02, 0x02, 0x01, 0x01, 0x80, 0x80, 0x40, 0x40 };
static const uchar fdiag_pat[] = { // forward diagonal pattern
0x02, 0x02, 0x04, 0x04, 0x08, 0x08, 0x10, 0x10, 0x20, 0x20, 0x40, 0x40,
0x80, 0x80, 0x01, 0x01, 0x02, 0x02, 0x04, 0x04, 0x08, 0x08, 0x10, 0x10,
0x20, 0x20, 0x40, 0x40, 0x80, 0x80, 0x01, 0x01 };
static const uchar dcross_pat[] = { // diagonal cross pattern
0x22, 0x22, 0x14, 0x14, 0x08, 0x08, 0x14, 0x14, 0x22, 0x22, 0x41, 0x41,
0x80, 0x80, 0x41, 0x41, 0x22, 0x22, 0x14, 0x14, 0x08, 0x08, 0x14, 0x14,
0x22, 0x22, 0x41, 0x41, 0x80, 0x80, 0x41, 0x41 };
static const uchar * const pat_tbl[] = {
dense1_pat, dense2_pat, dense3_pat, dense4_pat, dense5_pat,
dense6_pat, dense7_pat,
hor_pat, ver_pat, cross_pat, bdiag_pat, fdiag_pat, dcross_pat };
int bs = m_brush.style();
const uchar *pat = 0; // pattern
int d = 0; // defalt pattern size: d*d
if ( bs >= TQBrush::Dense1Pattern && bs <= TQBrush::DiagCrossPattern ) {
pat = pat_tbl[ bs-TQBrush::Dense1Pattern ];
if ( bs <= TQBrush::Dense7Pattern ) {
d = 8;
}
else if ( bs <= TQBrush::CrossPattern ) {
d = 24;
}
else {
d = 16;
}
}
if ( (bs == TQBrush::CustomPattern) || pat ) {
TQImage brushImage;
if ( pat ) {
TQRgb color = m_brush.color().rgb();
brushImage = TQImage(d, d, 32);
int x;
int y;
int byte = 0;
int bit = 7;
for (x=0; x<d; x++) {
for (y=0; y<d; y++) {
brushImage.setPixel(x, y, (TEST_BIT(pat[byte], bit))?color:0x00000000);
bit--;
if (bit < 0) {
bit = 7;
byte++;
}
}
}
}
else {
TQPixmap *pm;
pm = m_brush.pixmap();
brushImage = pm->convertToImage();
}
cairo_surface_t* brushSurface = TQImageToCairoSurface(brushImage);
cairo_pattern_t* pattern = cairo_pattern_create_for_surface(brushSurface);
cairo_set_source(m_painter, pattern);
cairo_pattern_set_extend(cairo_get_source(m_painter), CAIRO_EXTEND_REPEAT);
cairo_pattern_destroy(pattern);
cairo_surface_destroy(brushSurface);
}
else {
TQRgb color = m_brush.color().rgb();
cairo_pattern_t* pattern = cairo_pattern_create_rgba(tqRed(color), tqGreen(color), tqBlue(color), tqAlpha(color));
cairo_set_source(m_painter, pattern);
cairo_pattern_set_extend(cairo_get_source(m_painter), CAIRO_EXTEND_REPEAT);
cairo_pattern_destroy(pattern);
}
}
}
/*!
\class TQt3CairoPaintDevice tdeqt4painter.h
\brief The TQt3CairoPaintDevice class is a paint device that translates
@ -44,10 +355,9 @@
*/
TQt3CairoPaintDevice::TQt3CairoPaintDevice( cairo_surface_t *cairosurface )
: TQPaintDevice( TQInternal::Picture | TQInternal::ExternalDevice )
: TQPaintDevice( TQInternal::Picture | TQInternal::ExternalDevice ), m_painter(NULL)
{
m_surface = cairosurface;
m_painter = cairo_create(m_surface);
}
/*!
@ -55,7 +365,10 @@ TQt3CairoPaintDevice::TQt3CairoPaintDevice( cairo_surface_t *cairosurface )
*/
TQt3CairoPaintDevice::~TQt3CairoPaintDevice()
{
if (m_painter) {
cairo_destroy(m_painter);
m_painter = NULL;
}
}
/*!
@ -68,13 +381,42 @@ bool TQt3CairoPaintDevice::cmd( int c, TQPainter *pt, TQPDevCmdParam *p )
Q_UNUSED(pt);
unsigned int i;
int x;
int y;
double x;
double y;
double width;
double height;
int index;
int count;
int lineCount;
// Convert data types
if (p) {
// if ((c == PdcDrawPoint) || (c == PdcMoveTo) || (c == PdcLineTo) || (c == PdcSetBrushOrigin)) {
// qt4point1 = QPoint(p[0].point->x(), p[0].point->y());
// }
// if (c == PdcDrawLine) {
// qt4point1 = QPoint(p[0].point->x(), p[0].point->y());
// qt4point2 = QPoint(p[1].point->x(), p[1].point->y());
// }
// if ((c == PdcDrawPolyline) || (c == PdcDrawPolygon) || (c == PdcDrawLineSegments) || (c == PdcDrawCubicBezier)) {
// TQPointArray qt3parray = *p[0].ptarr;
// qt4polygon.resize(qt3parray.count());
// for (i=0;i<qt3parray.count();i++) {
// qt3parray.point(i, &x, &y );
// qt4polygon.setPoint(i, x, y);
// }
// }
if ((c == PdcDrawRect) || (c == PdcDrawRoundRect) || (c == PdcDrawEllipse) || (c == PdcDrawArc) || (c == PdcDrawPie) || (c == PdcDrawChord)) {
x = p[0].rect->x();
y = p[0].rect->y();
width = p[0].rect->width();
height = p[0].rect->height();
}
}
// Perform drawing operation
switch ( c ) { // exec cmd
case PdcNOP:
break;
@ -93,9 +435,26 @@ bool TQt3CairoPaintDevice::cmd( int c, TQPainter *pt, TQPDevCmdParam *p )
case PdcDrawLine:
m_qt4painter->drawLine( qt4point1, qt4point2 );
break;
#endif
case PdcDrawRect:
m_qt4painter->drawRect( qt4PainterAdjustedRectangle(qt4rect, m_qt4painter) );
if (m_painter) {
if (m_pen.style() != TQPen::NoPen) {
cairo_rectangle(m_painter, x+CAIRO_PIXEL_OFFSET, y+CAIRO_PIXEL_OFFSET, width, height);
dualStrokePen();
}
if (m_brush.style() != TQBrush::NoBrush) {
int line_width = m_pen.width();
cairo_rectangle(m_painter, x+line_width+CAIRO_PIXEL_OFFSET, y+line_width+CAIRO_PIXEL_OFFSET, width-(line_width*2), height-(line_width*2));
dualStrokeBrush();
}
}
else {
#if defined(QT_CHECK_RANGE)
tqWarning( "TQt3CairoPaintDevice::cmd: TQPainter::begin must be called before PdcDrawRect" );
#endif
}
break;
#if 0
case PdcDrawRoundRect:
m_qt4painter->drawRoundedRect( qt4PainterAdjustedRectangle(qt4rect, m_qt4painter), p[1].ival, p[2].ival );
break;
@ -156,36 +515,45 @@ bool TQt3CairoPaintDevice::cmd( int c, TQPainter *pt, TQPDevCmdParam *p )
}
}
break;
#endif
#endif
case PdcBegin:
if (m_qt4painter->isActive()) {
// KEEP THIS DEACTIVATED
// QPaintDevice* pd = m_qt4painter->device();
// m_qt4painter->end();
// m_qt4painter->begin(pd);
}
#if defined(QT_CHECK_RANGE)
else {
tqWarning( "TQt3CairoPaintDevice::cmd: Painter has no paint device available" );
if (!m_painter) {
m_bgColor = TQColor(0,0,0);
m_bgColorMode = TQt::TransparentMode;
m_painter = cairo_create(m_surface);
m_pen = TQPen();
m_brush = TQBrush();
}
#endif
break;
case PdcEnd:
// KEEP THIS DEACTIVATED
// m_qt4painter->end();
if (m_painter) {
cairo_destroy(m_painter);
m_painter = NULL;
}
break;
#if 0
case PdcSave:
m_qt4painter->save();
break;
case PdcRestore:
m_qt4painter->restore();
break;
#endif
case PdcSetBkColor:
m_qt4painter->setBackground( QBrush(QColor(p[0].color->red(), p[0].color->green(), p[0].color->blue())) );
if (p) {
const TQColor* color = p[0].color;
if (color) {
m_bgColor = *color;
}
}
break;
case PdcSetBkMode:
m_qt4painter->setBackgroundMode( qt4bkmode );
if (p) {
m_bgColorMode = (TQt::BGMode)p[0].ival;
}
break;
#if 0
case PdcSetROP:
m_qt4painter->setCompositionMode(qt4compositionmode);
break;
@ -195,12 +563,24 @@ bool TQt3CairoPaintDevice::cmd( int c, TQPainter *pt, TQPDevCmdParam *p )
case PdcSetFont:
m_qt4painter->setFont( qt4font );
break;
#endif
case PdcSetPen:
m_qt4painter->setPen( qt4pen );
if (p) {
const TQPen* pen = p[0].pen;
if (pen) {
m_pen = *pen;
}
}
break;
case PdcSetBrush:
m_qt4painter->setBrush( qt4brush );
if (p) {
const TQBrush* brush = p[0].brush;
if (brush) {
m_brush = *brush;
}
}
break;
#if 0
#if 0
case PdcSetTabStops:
s >> i_16;
@ -333,8 +713,11 @@ int TQt3CairoPaintDevice::metric( int m ) const
else if (format == CAIRO_FORMAT_RGB24) {
val = 16777216;
}
else if (format == CAIRO_FORMAT_RGB16_565) {
val = 65536;
}
else {
val = 16777216;
val = 65536;
}
break;
case TQPaintDeviceMetrics::PdmDepth:
@ -345,8 +728,11 @@ int TQt3CairoPaintDevice::metric( int m ) const
else if (format == CAIRO_FORMAT_RGB24) {
val = 24;
}
else if (format == CAIRO_FORMAT_RGB16_565) {
val = 16;
}
else {
val = 24;
val = 16;
}
break;
default:

15
tdegtk/tqtcairopainter.h
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@ -24,6 +24,9 @@
#define TQT_NO_COMPAT_NAMES
#include "ntqpaintdevice.h"
#include "ntqbuffer.h"
#include "ntqcolor.h"
#include "ntqpen.h"
#include "ntqbrush.h"
#include <cairo.h>
@ -37,9 +40,21 @@ protected:
bool cmd( int, TQPainter *, TQPDevCmdParam * );
int metric( int ) const;
private:
void updatePen(bool backgroundStroke=FALSE);
void dualStrokePen();
void updateBrush(bool backgroundStroke=FALSE);
void dualStrokeBrush();
private:
cairo_surface_t *m_surface;
cairo_t *m_painter;
TQColor m_bgColor;
TQt::BGMode m_bgColorMode;
TQPen m_pen;
TQBrush m_brush;
};
#endif // TDEQT4PAINTER_H

4
tests/Makefile.am
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@ -19,10 +19,12 @@ test_painter_SOURCES = test-painter.cpp
test_painter_CXXFLAGS = \
-I$(top_srcdir) \
-I$(top_srcdir)/tdegtk \
-I/usr/include/tqt -I/usr/include/tqt3 \
$(TDEGTK_CFLAGS)
test_painter_LDADD = \
$(TDEGTK_LIBADD)
$(TDEGTK_LIBADD) ../tdegtk/libtqtcairo.la -ltqt -ltqt-mt
test_painter_LDFLAGS = \
$(TDEGTK_LDFLAGS)

50
tests/test-painter.cpp
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@ -1,5 +1,10 @@
#include <cairo.h>
#include <tqpainter.h>
#include <tqapplication.h>
#include "tqtcairopainter.h"
int
main (int argc, char *argv[])
{
@ -7,19 +12,46 @@ main (int argc, char *argv[])
cairo_t *cr;
surface = cairo_image_surface_create (CAIRO_FORMAT_ARGB32, 120, 120);
cr = cairo_create (surface);
/* Examples are in 1.0 x 1.0 coordinate space */
cairo_scale (cr, 120, 120);
// cr = cairo_create (surface);
// /* Examples are in 1.0 x 1.0 coordinate space */
// cairo_scale (cr, 120, 120);
//
// /* Drawing code goes here */
// cairo_set_line_width (cr, 0.1);
// cairo_set_source_rgb (cr, 0, 0, 0);
// cairo_rectangle (cr, 0.25, 0.25, 0.5, 0.5);
// cairo_stroke (cr);
// Initialize TQApplication required data structures
new TQApplication(argc, argv, TRUE);
TQt3CairoPaintDevice pd(surface);
TQPainter p(&pd);
p.setPen(TQPen(TQt::red, 1));
p.drawRect(5, 5, 50, 50);
TQBrush brush( TQt::yellow, TQBrush::DiagCrossPattern ); // yellow pattern
p.setBrush( brush ); // set the yellow brush
p.setPen( TQt::NoPen ); // do not draw outline
p.drawRect( 0,0, 25,25 ); // draw filled rectangle
TQBrush brush2( TQt::green, TQBrush::SolidPattern ); // green pattern
p.setBrush( brush2 ); // set the yellow brush
p.setPen( TQt::NoPen ); // do not draw outline
p.drawRect( 40,30, 200,100 ); // draw filled rectangle
p.setBrush( TQt::NoBrush ); // do not fill
p.setPen( TQt::blue ); // set blue pen, 0 pixel width
p.drawRect( 10,10, 30,20 ); // draw rectangle outline
TQBrush brush3( TQColor(255,128,0), TQBrush::SolidPattern ); // green pattern
p.setBrush( brush3 ); // set the yellow brush
p.setPen( TQColor(255,0,255) ); // draw outline
p.drawRect( 50,50, 180,80 ); // draw filled rectangle
/* Drawing code goes here */
cairo_set_line_width (cr, 0.1);
cairo_set_source_rgb (cr, 0, 0, 0);
cairo_rectangle (cr, 0.25, 0.25, 0.5, 0.5);
cairo_stroke (cr);
p.end();
/* Write output and clean up */
cairo_surface_write_to_png (surface, "stroke.png");
cairo_destroy (cr);
// cairo_destroy (cr);
cairo_surface_destroy (surface);
return 0;

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