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Rewrote scaling for GTK+ print

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@48633 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
2007-09-10 21:35:45 +00:00
parent 6950be0111
commit a931295073
2 changed files with 143 additions and 447 deletions
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134
include/wx/gtk/print.h
View File

@@ -244,22 +244,11 @@ public:
wxCoord GetCharWidth() const;
bool CanGetTextExtent() const { return true; }
wxSize GetPPI() const;
void SetLogicalOrigin( wxCoord x, wxCoord y );
void SetDeviceOrigin( wxCoord x, wxCoord y );
virtual int GetDepth() const { return 24; }
void SetBackgroundMode(int WXUNUSED(mode));
void SetBackgroundMode(int mode);
void SetPalette(const wxPalette& WXUNUSED(palette)) { }
static void SetResolution(int ppi);
static int GetResolution();
void DrawScaledBitmap(const wxBitmap &bmp, wxCoord x, wxCoord y, wxCoord w, wxCoord h,
bool useMask = false, int quality = wxIMAGE_QUALITY_NORMAL)
{ DoDrawScaledBitmap( bmp, x, y, w, h, useMask, quality ); }
void DrawScaledBitmap(const wxBitmap &bmp, const wxPoint& pt, const wxSize& sz,
bool useMask = false, int quality = wxIMAGE_QUALITY_NORMAL)
{ DoDrawScaledBitmap( bmp, pt.x, pt.y, sz.x, sz.y, useMask, quality ); }
void DrawScaledBitmap(const wxBitmap &bmp, const wxRect& rect,
bool useMask = false, int quality = wxIMAGE_QUALITY_NORMAL)
{ DoDrawScaledBitmap( bmp, rect.x, rect.y, rect.width, rect.height, useMask, quality ); }
void SetResolution(int ppi);
int GetResolution();
protected:
bool DoFloodFill(wxCoord x1, wxCoord y1, const wxColour &col, int style=wxFLOOD_SURFACE );
@@ -300,11 +289,7 @@ protected:
wxPrintData& GetPrintData() { return m_printData; }
void SetPrintData(const wxPrintData& data);
void ComputeScaleAndOrigin();
private:
static float ms_PSScaleFactor;
wxPrintData m_printData;
PangoContext *m_context;
PangoLayout *m_layout;
@@ -316,116 +301,11 @@ private:
unsigned char m_currentBlue;
unsigned char m_currentAlpha;
int m_deviceOffsetY;
int m_deviceOffsetX;
GtkPrintContext *m_gpc;
int m_resolution;
double m_PS2DEV;
double m_DEV2PS;
GtkPrintContext *m_gpc;
static int ms_resolution;
wxCoord DeviceToLogicalX(wxCoord x) const
{
int addValue = 0;
if (m_signX == -1) addValue = m_deviceOffsetX - m_deviceOriginX; // right to left
else addValue = m_deviceOriginX;// left to right
return (wxCoord) ((double)(x - addValue) * m_signX + m_logicalOriginX);
}
wxCoord DeviceToLogicalXRel(wxCoord x) const
{
return x;
}
wxCoord DeviceToLogicalY(wxCoord y) const
{
int addValue = 0;
if (m_signY == -1) addValue = m_deviceOffsetY - m_deviceOriginY; // bottom to up
else addValue = m_deviceOriginY;// up to bottom
return (wxCoord) ((double)(y - addValue) * m_signY + m_logicalOriginY);
}
wxCoord DeviceToLogicalYRel(wxCoord y) const
{
return y;
}
wxCoord CairoToLogicalX(double x) const
{
int addValue = 0;
if (m_signX == -1) addValue = m_deviceOffsetX - m_deviceOriginX; // right to left
else addValue = m_deviceOriginX;// left to right
return (wxCoord) MapFromCairo((double)(x - addValue) * m_signX + m_logicalOriginX);
}
wxCoord CairoToLogicalXRel(double x) const
{
return (wxCoord) MapFromCairo(x);
}
wxCoord CairoToLogicalY(double y) const
{
int addValue = 0;
if (m_signY == -1) addValue = m_deviceOffsetY - m_deviceOriginY; // bottom to up
else addValue = m_deviceOriginY;// up to bottom
return (wxCoord) MapFromCairo((double)(y - addValue) * m_signY + m_logicalOriginY);
}
wxCoord CairoToLogicalYRel(double y) const
{
return (wxCoord) MapFromCairo(y);
}
wxCoord LogicalToDeviceX(wxCoord x) const
{
int addValue = 0;
if (m_signX == -1) addValue = m_deviceOffsetX - m_deviceOriginX; // right to left
else addValue = m_deviceOriginX;// left to right
return (wxCoord) ((double)(x - m_logicalOriginX) * m_signX + addValue);
}
wxCoord LogicalToDeviceXRel(wxCoord x) const
{
return x;
}
wxCoord LogicalToDeviceY(wxCoord y) const
{
int addValue = 0;
if (m_signY == -1) addValue = m_deviceOffsetY - m_deviceOriginY; // bottom to up
else addValue = m_deviceOriginY;// up to bottom
return (wxCoord) ((double)(y - m_logicalOriginY) * m_signY + addValue);
}
wxCoord LogicalToDeviceYRel(wxCoord y) const
{
return y;
}
double LogicalToCairoX(wxCoord x) const
{
int addValue = 0;
if (m_signX == -1) addValue = m_deviceOffsetX - m_deviceOriginX; // right to left
else addValue = m_deviceOriginX;// left to right
return MapToCairo((double)(x - m_logicalOriginX) * m_signX + addValue);
}
double LogicalToCairoXRel(wxCoord x) const
{
return MapToCairo(x);
}
double LogicalToCairoY(wxCoord y) const
{
int addValue = 0;
if (m_signY == -1) addValue = m_deviceOffsetY - m_deviceOriginY; // bottom to up
else addValue = m_deviceOriginY;// up to bottom
return MapToCairo((double)(y - m_logicalOriginY) * m_signY + addValue);
}
double LogicalToCairoYRel(wxCoord y) const
{
return MapToCairo(y);
}
double MapToCairo(wxCoord coordInt) const
{
return (double)coordInt*72.0/(double)ms_resolution;
}
double MapToCairo(double coordReal) const
{
return coordReal*72.0/(double)ms_resolution;
}
wxCoord MapFromCairo(wxCoord coordInt) const
{
return (wxCoord) ((double)coordInt*(double)ms_resolution/72.0);
}
wxCoord MapFromCairo(double coordReal) const
{
return (wxCoord) (coordReal*(double)ms_resolution/72.0);
}
DECLARE_DYNAMIC_CLASS(wxGtkPrintDC)
DECLARE_NO_COPY_CLASS(wxGtkPrintDC)
};

446
src/gtk/print.cpp
View File

@@ -867,7 +867,8 @@ void wxGtkPrinter::BeginPrint(wxPrintout *printout, GtkPrintOperation *operation
SetPrintContext(context);
native->SetPrintContext( context );
m_dc = new wxGtkPrintDC( printdata );
wxGtkPrintDC *printDC = new wxGtkPrintDC( printdata );
m_dc = printDC;
if (!m_dc->IsOk())
{
@@ -883,8 +884,8 @@ void wxGtkPrinter::BeginPrint(wxPrintout *printout, GtkPrintOperation *operation
printout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
(int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
printout->SetPPIPrinter( wxGtkPrintDC::GetResolution(),
wxGtkPrintDC::GetResolution() );
printout->SetPPIPrinter( printDC->GetResolution(),
printDC->GetResolution() );
printout->SetDC(m_dc);
@@ -1042,10 +1043,12 @@ bool wxGtkPrinter::Setup( wxWindow *parent )
// wxGtkPrintDC
//-----------------------------------------------------------------------------
IMPLEMENT_CLASS(wxGtkPrintDC, wxDC)
#define XLOG2DEV(x) ((double)(LogicalToDeviceX(x)) * m_DEV2PS)
#define XLOG2DEVREL(x) ((double)(LogicalToDeviceXRel(x)) * m_DEV2PS)
#define YLOG2DEV(x) ((double)(LogicalToDeviceY(x)) * m_DEV2PS)
#define YLOG2DEVREL(x) ((double)(LogicalToDeviceYRel(x)) * m_DEV2PS)
// Define the default resolution for this DC. This resolution is just used for positioning as the cairo context is scalable.
int wxGtkPrintDC::ms_resolution = 72;
IMPLEMENT_CLASS(wxGtkPrintDC, wxDC)
wxGtkPrintDC::wxGtkPrintDC( const wxPrintData& data )
{
@@ -1056,11 +1059,16 @@ wxGtkPrintDC::wxGtkPrintDC( const wxPrintData& data )
m_gpc = native->GetPrintContext();
ms_resolution = m_printData.GetQuality();// (int) gtk_print_context_get_dpi_x( m_gpc );
if (ms_resolution < 0)
{
ms_resolution = (1 << (ms_resolution+4)) *150;
}
// RR: what does this do?
m_resolution = m_printData.GetQuality(); // (int) gtk_print_context_get_dpi_x( m_gpc );
if (m_resolution < 0)
m_resolution = (1 << (m_resolution+4)) *150;
wxPrintf( "resolution %d\n", m_resolution );
m_PS2DEV = (double)m_resolution / 72.0;
m_DEV2PS = 72.0 / (double)m_resolution;
m_context = gtk_print_context_create_pango_context( m_gpc );
m_layout = gtk_print_context_create_pango_layout ( m_gpc );
m_fontdesc = pango_font_description_from_string( "Sans 12" );
@@ -1073,8 +1081,6 @@ wxGtkPrintDC::wxGtkPrintDC( const wxPrintData& data )
m_signX = 1; // default x-axis left to right.
m_signY = 1; // default y-axis bottom up -> top down.
GetSize( &m_deviceOffsetX, &m_deviceOffsetY );
}
wxGtkPrintDC::~wxGtkPrintDC()
@@ -1085,17 +1091,7 @@ wxGtkPrintDC::~wxGtkPrintDC()
bool wxGtkPrintDC::IsOk() const
{
return true;
}
void wxGtkPrintDC::ComputeScaleAndOrigin()
{
// Called when the scale and/or origin of the context has to be changed.
m_scaleX = m_logicalScaleX * m_userScaleX;
m_scaleY = m_logicalScaleY * m_userScaleY;
gs_cairo->cairo_translate(m_cairo, MapToCairo(m_deviceOriginX), MapToCairo(m_deviceOriginY) );
gs_cairo->cairo_scale(m_cairo, m_scaleX, m_scaleY );
return (m_gpc != NULL);
}
bool wxGtkPrintDC::DoFloodFill(wxCoord x1, wxCoord y1, const wxColour &col, int style )
@@ -1136,13 +1132,13 @@ void wxGtkPrintDC::DoGradientFillConcentric(const wxRect& rect, const wxColour&
// Create a pattern with the gradient.
cairo_pattern_t* gradient;
gradient = gs_cairo->cairo_pattern_create_radial (LogicalToCairoX(xC+xR), LogicalToCairoY(yC+yR), 0, LogicalToCairoX(xC+xR), LogicalToCairoY(yC+yR), MapToCairo(radius));
gradient = gs_cairo->cairo_pattern_create_radial (XLOG2DEV(xC+xR), YLOG2DEVREL(yC+yR), 0, XLOG2DEV(xC+xR), YLOG2DEVREL(yC+yR), radius * m_DEV2PS );
gs_cairo->cairo_pattern_add_color_stop_rgba (gradient, 0.0, redIPS, greenIPS, blueIPS, alphaIPS);
gs_cairo->cairo_pattern_add_color_stop_rgba (gradient, 1.0, redDPS, greenDPS, blueDPS, alphaDPS);
// Fill the rectangle with this pattern.
gs_cairo->cairo_set_source(m_cairo, gradient);
gs_cairo->cairo_rectangle (m_cairo, LogicalToCairoX(xR), LogicalToCairoY(yR), LogicalToCairoXRel(w), LogicalToCairoYRel(h) );
gs_cairo->cairo_rectangle (m_cairo, XLOG2DEV(xR), YLOG2DEVREL(yR), XLOG2DEVREL(w), YLOG2DEVREL(h) );
gs_cairo->cairo_fill(m_cairo);
gs_cairo->cairo_pattern_destroy(gradient);
@@ -1178,7 +1174,7 @@ void wxGtkPrintDC::DoGradientFillLinear(const wxRect& rect, const wxColour& init
// Create a pattern with the gradient.
cairo_pattern_t* gradient;
gradient = gs_cairo->cairo_pattern_create_linear (LogicalToCairoX(x), LogicalToCairoY(y), LogicalToCairoX(x+w), LogicalToCairoY(y));
gradient = gs_cairo->cairo_pattern_create_linear (XLOG2DEVREL(x), YLOG2DEVREL(y), XLOG2DEVREL(x+w), YLOG2DEVREL(y));
if (nDirection == wxWEST)
{
@@ -1192,7 +1188,7 @@ void wxGtkPrintDC::DoGradientFillLinear(const wxRect& rect, const wxColour& init
// Fill the rectangle with this pattern.
gs_cairo->cairo_set_source(m_cairo, gradient);
gs_cairo->cairo_rectangle (m_cairo, LogicalToCairoX(x), LogicalToCairoY(y), LogicalToCairoXRel(w), LogicalToCairoYRel(h) );
gs_cairo->cairo_rectangle (m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y), XLOG2DEVREL(w), YLOG2DEVREL(h) );
gs_cairo->cairo_fill(m_cairo);
gs_cairo->cairo_pattern_destroy(gradient);
@@ -1213,8 +1209,8 @@ void wxGtkPrintDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
if (m_pen.GetStyle() == wxTRANSPARENT) return;
SetPen( m_pen );
gs_cairo->cairo_move_to ( m_cairo, LogicalToCairoX(x1), LogicalToCairoY(y1) );
gs_cairo->cairo_line_to ( m_cairo, LogicalToCairoX(x2), LogicalToCairoY(y2) );
gs_cairo->cairo_move_to ( m_cairo, XLOG2DEVREL(x1), YLOG2DEVREL(y1) );
gs_cairo->cairo_line_to ( m_cairo, XLOG2DEVREL(x2), YLOG2DEVREL(y2) );
gs_cairo->cairo_stroke ( m_cairo );
CalcBoundingBox( x1, y1 );
@@ -1223,24 +1219,19 @@ void wxGtkPrintDC::DoDrawLine(wxCoord x1, wxCoord y1, wxCoord x2, wxCoord y2)
void wxGtkPrintDC::DoCrossHair(wxCoord x, wxCoord y)
{
int *w, *h;
w = new int;
h = new int;
DoGetSize(w, h);
int w, h;
DoGetSize(&w, &h);
SetPen(m_pen);
gs_cairo->cairo_move_to (m_cairo, LogicalToCairoX(x), 0);
gs_cairo->cairo_line_to (m_cairo, LogicalToCairoX(x), MapToCairo(*h));
gs_cairo->cairo_move_to (m_cairo, 0, LogicalToCairoY(y));
gs_cairo->cairo_line_to (m_cairo, MapToCairo(*w), LogicalToCairoY(y));
gs_cairo->cairo_move_to (m_cairo, XLOG2DEVREL(x), 0);
gs_cairo->cairo_line_to (m_cairo, XLOG2DEVREL(x), h * m_DEV2PS);
gs_cairo->cairo_move_to (m_cairo, 0, YLOG2DEVREL(y));
gs_cairo->cairo_line_to (m_cairo, w * m_DEV2PS, YLOG2DEVREL(y));
gs_cairo->cairo_stroke (m_cairo);
CalcBoundingBox( 0, 0 );
CalcBoundingBox( *w, *h );
delete w;
delete h;
CalcBoundingBox( w, h );
}
void wxGtkPrintDC::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2,wxCoord xc,wxCoord yc)
@@ -1278,8 +1269,8 @@ void wxGtkPrintDC::DoDrawArc(wxCoord x1,wxCoord y1,wxCoord x2,wxCoord y2,wxCoord
alpha1 *= DEG2RAD;
alpha2 *= DEG2RAD;
gs_cairo->cairo_arc_negative ( m_cairo, LogicalToCairoX(xc), LogicalToCairoY(yc), LogicalToCairoXRel((int)radius), alpha1, alpha2);
gs_cairo->cairo_line_to(m_cairo, LogicalToCairoX(xc), LogicalToCairoY(yc));
gs_cairo->cairo_arc_negative ( m_cairo, XLOG2DEVREL(xc), YLOG2DEVREL(yc), XLOG2DEVREL((int)radius), alpha1, alpha2);
gs_cairo->cairo_line_to(m_cairo, XLOG2DEVREL(xc), YLOG2DEVREL(yc));
gs_cairo->cairo_close_path (m_cairo);
SetBrush( m_brush );
@@ -1297,11 +1288,11 @@ void wxGtkPrintDC::DoDrawEllipticArc(wxCoord x,wxCoord y,wxCoord w,wxCoord h,dou
{
gs_cairo->cairo_save( m_cairo );
gs_cairo->cairo_translate( m_cairo, LogicalToCairoX((wxCoord) (x + w / 2.)), LogicalToCairoX((wxCoord) (y + h / 2.)) );
double scale = (double)LogicalToCairoYRel(h) / (double) LogicalToCairoXRel(w);
gs_cairo->cairo_translate( m_cairo, XLOG2DEVREL((wxCoord) (x + w / 2.)), XLOG2DEVREL((wxCoord) (y + h / 2.)) );
double scale = (double)YLOG2DEVREL(h) / (double) XLOG2DEVREL(w);
gs_cairo->cairo_scale( m_cairo, 1.0, scale );
gs_cairo->cairo_arc_negative ( m_cairo, 0, 0, LogicalToCairoXRel(w/2), -sa*DEG2RAD, -ea*DEG2RAD);
gs_cairo->cairo_arc_negative ( m_cairo, 0, 0, XLOG2DEVREL(w/2), -sa*DEG2RAD, -ea*DEG2RAD);
SetPen (m_pen);
gs_cairo->cairo_stroke_preserve( m_cairo );
@@ -1323,8 +1314,8 @@ void wxGtkPrintDC::DoDrawPoint(wxCoord x, wxCoord y)
SetPen( m_pen );
gs_cairo->cairo_move_to ( m_cairo, LogicalToCairoX(x), LogicalToCairoY(y) );
gs_cairo->cairo_line_to ( m_cairo, LogicalToCairoX(x), LogicalToCairoY(y) );
gs_cairo->cairo_move_to ( m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y) );
gs_cairo->cairo_line_to ( m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y) );
gs_cairo->cairo_stroke ( m_cairo );
CalcBoundingBox( x, y );
@@ -1342,10 +1333,10 @@ void wxGtkPrintDC::DoDrawLines(int n, wxPoint points[], wxCoord xoffset, wxCoord
for ( i =0; i<n ; i++ )
CalcBoundingBox( points[i].x+xoffset, points[i].y+yoffset);
gs_cairo->cairo_move_to ( m_cairo, LogicalToCairoX(points[0].x+xoffset), LogicalToCairoY(points[0].y+yoffset) );
gs_cairo->cairo_move_to ( m_cairo, XLOG2DEVREL(points[0].x+xoffset), YLOG2DEVREL(points[0].y+yoffset) );
for (i = 1; i < n; i++)
gs_cairo->cairo_line_to ( m_cairo, LogicalToCairoX(points[i].x+xoffset), LogicalToCairoY(points[i].y+yoffset) );
gs_cairo->cairo_line_to ( m_cairo, XLOG2DEVREL(points[i].x+xoffset), YLOG2DEVREL(points[i].y+yoffset) );
gs_cairo->cairo_stroke ( m_cairo);
}
@@ -1363,13 +1354,13 @@ void wxGtkPrintDC::DoDrawPolygon(int n, wxPoint points[], wxCoord xoffset, wxCoo
int x = points[0].x + xoffset;
int y = points[0].y + yoffset;
gs_cairo->cairo_new_path(m_cairo);
gs_cairo->cairo_move_to( m_cairo, LogicalToCairoX(x), LogicalToCairoY(y) );
gs_cairo->cairo_move_to( m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y) );
int i;
for (i = 1; i < n; i++)
{
int x = points[i].x + xoffset;
int y = points[i].y + yoffset;
gs_cairo->cairo_line_to( m_cairo, LogicalToCairoX(x), LogicalToCairoY(y) );
gs_cairo->cairo_line_to( m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y) );
}
gs_cairo->cairo_close_path(m_cairo);
@@ -1391,7 +1382,7 @@ void wxGtkPrintDC::DoDrawPolyPolygon(int n, int count[], wxPoint points[], wxCoo
void wxGtkPrintDC::DoDrawRectangle(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
gs_cairo->cairo_rectangle ( m_cairo, LogicalToCairoX(x), LogicalToCairoY(y), LogicalToCairoXRel(width), LogicalToCairoYRel(height));
gs_cairo->cairo_rectangle ( m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y), XLOG2DEVREL(width), YLOG2DEVREL(height));
SetBrush( m_brush );
gs_cairo->cairo_fill_preserve( m_cairo );
@@ -1415,27 +1406,27 @@ void wxGtkPrintDC::DoDrawRoundedRectangle(wxCoord x, wxCoord y, wxCoord width, w
wxCoord rad = (wxCoord) radius;
gs_cairo->cairo_new_path(m_cairo);
gs_cairo->cairo_move_to(m_cairo,LogicalToCairoX(x + rad),LogicalToCairoY(y));
gs_cairo->cairo_move_to(m_cairo,XLOG2DEVREL(x + rad),YLOG2DEVREL(y));
gs_cairo->cairo_curve_to(m_cairo,
LogicalToCairoX(x + rad),LogicalToCairoY(y),
LogicalToCairoX(x),LogicalToCairoY(y),
LogicalToCairoX(x),LogicalToCairoY(y + rad));
gs_cairo->cairo_line_to(m_cairo,LogicalToCairoX(x),LogicalToCairoY(y + height - rad));
XLOG2DEVREL(x + rad),YLOG2DEVREL(y),
XLOG2DEVREL(x),YLOG2DEVREL(y),
XLOG2DEVREL(x),YLOG2DEVREL(y + rad));
gs_cairo->cairo_line_to(m_cairo,XLOG2DEVREL(x),YLOG2DEVREL(y + height - rad));
gs_cairo->cairo_curve_to(m_cairo,
LogicalToCairoX(x),LogicalToCairoY(y + height - rad),
LogicalToCairoX(x),LogicalToCairoY(y + height),
LogicalToCairoX(x + rad),LogicalToCairoY(y + height));
gs_cairo->cairo_line_to(m_cairo,LogicalToCairoX(x + width - rad),LogicalToCairoY(y + height));
XLOG2DEVREL(x),YLOG2DEVREL(y + height - rad),
XLOG2DEVREL(x),YLOG2DEVREL(y + height),
XLOG2DEVREL(x + rad),YLOG2DEVREL(y + height));
gs_cairo->cairo_line_to(m_cairo,XLOG2DEVREL(x + width - rad),YLOG2DEVREL(y + height));
gs_cairo->cairo_curve_to(m_cairo,
LogicalToCairoX(x + width - rad),LogicalToCairoY(y + height),
LogicalToCairoX(x + width),LogicalToCairoY(y + height),
LogicalToCairoX(x + width),LogicalToCairoY(y + height - rad));
gs_cairo->cairo_line_to(m_cairo,LogicalToCairoX(x + width),LogicalToCairoY(y + rad));
XLOG2DEVREL(x + width - rad),YLOG2DEVREL(y + height),
XLOG2DEVREL(x + width),YLOG2DEVREL(y + height),
XLOG2DEVREL(x + width),YLOG2DEVREL(y + height - rad));
gs_cairo->cairo_line_to(m_cairo,XLOG2DEVREL(x + width),YLOG2DEVREL(y + rad));
gs_cairo->cairo_curve_to(m_cairo,
LogicalToCairoX(x + width),LogicalToCairoY(y + rad),
LogicalToCairoX(x + width),LogicalToCairoY(y),
LogicalToCairoX(x + width - rad),LogicalToCairoY(y));
gs_cairo->cairo_line_to(m_cairo,LogicalToCairoX(x + rad),LogicalToCairoY(y));
XLOG2DEVREL(x + width),YLOG2DEVREL(y + rad),
XLOG2DEVREL(x + width),YLOG2DEVREL(y),
XLOG2DEVREL(x + width - rad),YLOG2DEVREL(y));
gs_cairo->cairo_line_to(m_cairo,XLOG2DEVREL(x + rad),YLOG2DEVREL(y));
gs_cairo->cairo_close_path(m_cairo);
SetBrush(m_brush);
@@ -1452,9 +1443,9 @@ void wxGtkPrintDC::DoDrawEllipse(wxCoord x, wxCoord y, wxCoord width, wxCoord he
{
gs_cairo->cairo_save (m_cairo);
gs_cairo->cairo_translate (m_cairo, LogicalToCairoX((wxCoord) (x + width / 2.)), LogicalToCairoY((wxCoord) (y + height / 2.)));
gs_cairo->cairo_scale(m_cairo, 1, (double)LogicalToCairoYRel(height)/(double)LogicalToCairoXRel(width));
gs_cairo->cairo_arc ( m_cairo, 0, 0, LogicalToCairoXRel(width/2), 0, 2 * M_PI);
gs_cairo->cairo_translate (m_cairo, XLOG2DEVREL((wxCoord) (x + width / 2.)), YLOG2DEVREL((wxCoord) (y + height / 2.)));
gs_cairo->cairo_scale(m_cairo, 1, (double)YLOG2DEVREL(height)/(double)XLOG2DEVREL(width));
gs_cairo->cairo_arc ( m_cairo, 0, 0, XLOG2DEVREL(width/2), 0, 2 * M_PI);
SetBrush( m_brush );
gs_cairo->cairo_fill_preserve( m_cairo );
@@ -1491,8 +1482,8 @@ void wxGtkPrintDC::DoDrawSpline(wxList *points)
(double)(y1 + d) / 2;
gs_cairo->cairo_new_path( m_cairo );
gs_cairo->cairo_move_to( m_cairo, LogicalToCairoX((wxCoord)x1), LogicalToCairoY((wxCoord)y1) );
gs_cairo->cairo_line_to( m_cairo, LogicalToCairoX((wxCoord)x3), LogicalToCairoY((wxCoord)y3) );
gs_cairo->cairo_move_to( m_cairo, XLOG2DEVREL((wxCoord)x1), YLOG2DEVREL((wxCoord)y1) );
gs_cairo->cairo_line_to( m_cairo, XLOG2DEVREL((wxCoord)x3), YLOG2DEVREL((wxCoord)y3) );
CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
@@ -1512,9 +1503,9 @@ void wxGtkPrintDC::DoDrawSpline(wxList *points)
y3 = (double)(y2 + d) / 2;
gs_cairo->cairo_curve_to(m_cairo,
LogicalToCairoX((wxCoord)x1), LogicalToCairoY((wxCoord)y1),
LogicalToCairoX((wxCoord)x2), LogicalToCairoY((wxCoord)y2),
LogicalToCairoX((wxCoord)x3), LogicalToCairoY((wxCoord)y3) );
XLOG2DEVREL((wxCoord)x1), YLOG2DEVREL((wxCoord)y1),
XLOG2DEVREL((wxCoord)x2), YLOG2DEVREL((wxCoord)y2),
XLOG2DEVREL((wxCoord)x3), YLOG2DEVREL((wxCoord)y3) );
CalcBoundingBox( (wxCoord)x1, (wxCoord)y1 );
CalcBoundingBox( (wxCoord)x3, (wxCoord)y3 );
@@ -1522,7 +1513,7 @@ void wxGtkPrintDC::DoDrawSpline(wxList *points)
node = node->GetNext();
}
gs_cairo->cairo_line_to ( m_cairo, LogicalToCairoX((wxCoord)c), LogicalToCairoY((wxCoord)d) );
gs_cairo->cairo_line_to ( m_cairo, XLOG2DEVREL((wxCoord)c), YLOG2DEVREL((wxCoord)d) );
gs_cairo->cairo_stroke( m_cairo );
}
@@ -1557,8 +1548,8 @@ void wxGtkPrintDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, b
wxCHECK_RET( bitmap.IsOk(), wxT("Invalid bitmap in wxGtkPrintDC::DoDrawBitmap"));
cairo_surface_t* surface;
x = wxCoord(LogicalToCairoX(x));
y = wxCoord(LogicalToCairoY(y));
x = wxCoord(XLOG2DEVREL(x));
y = wxCoord(YLOG2DEVREL(y));
int bw = bitmap.GetWidth();
int bh = bitmap.GetHeight();
wxBitmap bmpSource = bitmap; // we need a non-const instance.
@@ -1656,129 +1647,15 @@ void wxGtkPrintDC::DoDrawBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, b
gs_cairo->cairo_restore(m_cairo);
}
// wxGtkPrintDC has a constant resolution of 72dpi. If we want an higher resolution for printing
// an image, the scaling has to be done by cairo.
void wxGtkPrintDC::DoDrawScaledBitmap( const wxBitmap& bitmap, wxCoord x, wxCoord y, wxCoord w, wxCoord h, bool useMask, int quality )
{
wxCHECK_RET( bitmap.IsOk(), wxT("Invalid bitmap in wxGtkPrintDC::DoDrawBitmap"));
cairo_surface_t* surface;
int bw = bitmap.GetWidth();
int bh = bitmap.GetHeight();
x = wxCoord(LogicalToCairoX(x));
y = wxCoord(LogicalToCairoY(y));
w = wxCoord(LogicalToCairoXRel(w));
h = wxCoord(LogicalToCairoYRel(h));
wxBitmap bmpSource = bitmap; // we need a non-const instance.
unsigned char* buffer = new unsigned char[bw*bh*4];
wxUint32* data = (wxUint32*)buffer;
// Create a surface object and copy the bitmap pixel data to it. If the image has alpha (or a mask represented as alpha)
// then we'll use a different format and iterator than if it doesn't.
if (bmpSource.HasAlpha() || bmpSource.GetMask())
{
surface = gs_cairo->cairo_image_surface_create_for_data(
buffer, CAIRO_FORMAT_ARGB32, bw, bh, bw*4);
wxAlphaPixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
wxAlphaPixelData::Iterator p(pixData);
int y, x;
for (y=0; y<bh; y++)
{
wxAlphaPixelData::Iterator rowStart = p;
for (x=0; x<bw; x++)
{
// Each pixel in CAIRO_FORMAT_ARGB32 is a 32-bit quantity,
// with alpha in the upper 8 bits, then red, then green, then
// blue. The 32-bit quantities are stored native-endian.
// Pre-multiplied alpha is used.
unsigned char alpha = p.Alpha();
if (alpha == 0)
*data = 0;
else
*data = ( alpha << 24
| (p.Red() * alpha/255) << 16
| (p.Green() * alpha/255) << 8
| (p.Blue() * alpha/255) );
++data;
++p;
}
p = rowStart;
p.OffsetY(pixData, 1);
}
}
else // no alpha
{
surface = gs_cairo->cairo_image_surface_create_for_data(
buffer, CAIRO_FORMAT_RGB24, bw, bh, bw*4);
wxNativePixelData pixData(bmpSource, wxPoint(0,0), wxSize(bw, bh));
wxCHECK_RET( pixData, wxT("Failed to gain raw access to bitmap data."));
wxNativePixelData::Iterator p(pixData);
int y, x;
for (y=0; y<bh; y++)
{
wxNativePixelData::Iterator rowStart = p;
for (x=0; x<bw; x++)
{
// Each pixel in CAIRO_FORMAT_RGB24 is a 32-bit quantity, with
// the upper 8 bits unused. Red, Green, and Blue are stored in
// the remaining 24 bits in that order. The 32-bit quantities
// are stored native-endian.
*data = ( p.Red() << 16 | p.Green() << 8 | p.Blue() );
++data;
++p;
}
p = rowStart;
p.OffsetY(pixData, 1);
}
}
gs_cairo->cairo_save(m_cairo);
// Prepare to draw the image.
gs_cairo->cairo_translate(m_cairo, x, y);
// In case we're scaling the image by using a width and height different
// than the bitmap's size create a pattern transformation on the surface and
// draw the transformed pattern.
cairo_filter_t filter;
if (quality == wxIMAGE_QUALITY_HIGH) filter = CAIRO_FILTER_BILINEAR;
else filter = CAIRO_FILTER_GOOD;
cairo_pattern_t* pattern = gs_cairo->cairo_pattern_create_for_surface(surface);
gs_cairo->cairo_pattern_set_filter(pattern,filter);
wxDouble scaleX = (wxDouble) w / (wxDouble) bw;
wxDouble scaleY = (wxDouble) h / (wxDouble) bh;
gs_cairo->cairo_scale(m_cairo, scaleX, scaleY);
gs_cairo->cairo_set_source(m_cairo, pattern);
// Use the original size here since the context is scaled already.
gs_cairo->cairo_rectangle(m_cairo, 0, 0, bw, bh);
// Fill the rectangle using the pattern.
gs_cairo->cairo_fill(m_cairo);
// Clean up.
gs_cairo->cairo_pattern_destroy(pattern);
gs_cairo->cairo_surface_destroy(surface);
delete [] buffer;
CalcBoundingBox(0,0);
CalcBoundingBox(bw,bh);
gs_cairo->cairo_restore(m_cairo);
}
void wxGtkPrintDC::DoDrawText(const wxString& text, wxCoord x, wxCoord y )
{
DoDrawRotatedText( text, x, y, 0.0 );
}
void wxGtkPrintDC::DoDrawRotatedText(const wxString& text, wxCoord xC, wxCoord yC, double angle)
void wxGtkPrintDC::DoDrawRotatedText(const wxString& text, wxCoord x, wxCoord y, double angle)
{
double x = LogicalToCairoX(xC);
double y = LogicalToCairoY(yC);
double xx = XLOG2DEV(x);
double yy = YLOG2DEV(y);
angle = -angle;
@@ -1828,24 +1705,11 @@ void wxGtkPrintDC::DoDrawRotatedText(const wxString& text, wxCoord xC, wxCoord y
}
}
// TODO: steal scale implementation from GNOME print
int w,h;
if (fabs(m_scaleY - 1.0) > 0.00001)
{
// If there is a user or actually any scale applied to the device context, scale the font.
// Scale font description.
gint oldSize = pango_font_description_get_size( m_fontdesc ); // cairo units
double size = oldSize;
size = size * m_scaleY;
pango_font_description_set_size( m_fontdesc, (gint)size ); // still in cairo units, no scaling required
// Actually apply scaled font.
pango_layout_set_font_description( m_layout, m_fontdesc );
pango_layout_get_pixel_size( m_layout, &w, &h ); // cairo units
w = wxCoord(LogicalToCairoXRel(MapFromCairo(w))); // convert from cairo to device units and back again
h = wxCoord(LogicalToCairoYRel(MapFromCairo(h)));
pango_layout_get_pixel_size( m_layout, &w, &h ); // cairo units
if ( m_backgroundMode == wxSOLID )
{
@@ -1860,86 +1724,38 @@ void wxGtkPrintDC::DoDrawRotatedText(const wxString& text, wxCoord xC, wxCoord y
double alphaPS = (double)(alpha) / 255.0;
gs_cairo->cairo_save(m_cairo);
gs_cairo->cairo_translate(m_cairo, x, y); // have already been converted to cairo units before
gs_cairo->cairo_translate(m_cairo, xx, yy);
gs_cairo->cairo_set_source_rgba( m_cairo, redPS, greenPS, bluePS, alphaPS );
gs_cairo->cairo_rotate(m_cairo,angle*DEG2RAD);
gs_cairo->cairo_rectangle(m_cairo, 0, 0, w, h); // have been converted back and forth
gs_cairo->cairo_rectangle(m_cairo, 0, 0, w, h); // still in cairo units
gs_cairo->cairo_fill(m_cairo);
gs_cairo->cairo_restore(m_cairo);
}
// Draw layout.
gs_cairo->cairo_move_to (m_cairo, x, y);
if (fabs(angle) > 0.00001)
{
gs_cairo->cairo_save( m_cairo );
gs_cairo->cairo_rotate( m_cairo, angle*DEG2RAD );
gs_cairo->pango_cairo_update_layout (m_cairo, m_layout);
gs_cairo->pango_cairo_show_layout (m_cairo, m_layout);
gs_cairo->cairo_restore( m_cairo );
}
else
{
gs_cairo->pango_cairo_update_layout (m_cairo, m_layout);
gs_cairo->pango_cairo_show_layout (m_cairo, m_layout);
}
// Draw layout.
gs_cairo->cairo_move_to (m_cairo, xx, yy);
// Reset unscaled size.
pango_font_description_set_size( m_fontdesc, oldSize );
gs_cairo->cairo_save( m_cairo );
// Actually apply unscaled font.
pango_layout_set_font_description( m_layout, m_fontdesc );
}
else
{
pango_layout_get_pixel_size( m_layout, &w, &h ); // cairo units
gs_cairo->cairo_scale( m_cairo, m_scaleX, m_scaleY );
if ( m_backgroundMode == wxSOLID )
{
unsigned char red = m_textBackgroundColour.Red();
unsigned char blue = m_textBackgroundColour.Blue();
unsigned char green = m_textBackgroundColour.Green();
unsigned char alpha = m_textBackgroundColour.Alpha();
if (fabs(angle) > 0.00001)
gs_cairo->cairo_rotate( m_cairo, angle*DEG2RAD );
double redPS = (double)(red) / 255.0;
double bluePS = (double)(blue) / 255.0;
double greenPS = (double)(green) / 255.0;
double alphaPS = (double)(alpha) / 255.0;
gs_cairo->pango_cairo_update_layout (m_cairo, m_layout);
gs_cairo->pango_cairo_show_layout (m_cairo, m_layout);
gs_cairo->cairo_save(m_cairo);
gs_cairo->cairo_translate(m_cairo, x, y); // have already been converted to cairo units before
gs_cairo->cairo_set_source_rgba( m_cairo, redPS, greenPS, bluePS, alphaPS );
gs_cairo->cairo_rotate(m_cairo,angle*DEG2RAD);
gs_cairo->cairo_rectangle(m_cairo, 0, 0, w, h); // still in cairo units
gs_cairo->cairo_fill(m_cairo);
gs_cairo->cairo_restore(m_cairo);
}
// Draw layout.
gs_cairo->cairo_move_to (m_cairo, x, y); // have already been converted to cairo units before
if (fabs(angle) > 0.00001)
{
gs_cairo->cairo_save( m_cairo );
gs_cairo->cairo_rotate( m_cairo, angle*DEG2RAD );
gs_cairo->pango_cairo_update_layout (m_cairo, m_layout);
gs_cairo->pango_cairo_show_layout (m_cairo, m_layout);
gs_cairo->cairo_restore( m_cairo );
}
else
{
gs_cairo->pango_cairo_update_layout (m_cairo, m_layout);
gs_cairo->pango_cairo_show_layout (m_cairo, m_layout);
}
}
gs_cairo->cairo_restore( m_cairo );
if (underlined)
{
// Undo underline attributes setting
pango_layout_set_attributes(m_layout, NULL);
}
// Back to device units:
CalcBoundingBox (MapFromCairo(x),MapFromCairo(y));
CalcBoundingBox (MapFromCairo(x + w),MapFromCairo(y + h));
CalcBoundingBox (x, y);
CalcBoundingBox (x + w, y + h);
}
void wxGtkPrintDC::Clear()
@@ -1968,7 +1784,7 @@ void wxGtkPrintDC::SetFont( const wxFont& font )
// Scale font description from device units to pango units
gint oldSize = pango_font_description_get_size( m_fontdesc );
double size = MapToCairo(oldSize); // scale to cairo units
double size = oldSize *m_DEV2PS; // scale to cairo units
pango_font_description_set_size( m_fontdesc, (gint)size ); // apply to description
// Actually apply scaled font.
@@ -1985,7 +1801,7 @@ void wxGtkPrintDC::SetPen( const wxPen& pen )
double width = (double) m_pen.GetWidth();
if (width == 0) width = 0.1;
gs_cairo->cairo_set_line_width( m_cairo, LogicalToCairoXRel( (wxCoord)((1000.0 * (double)width ) / 1000.0)) );
gs_cairo->cairo_set_line_width( m_cairo, XLOG2DEVREL( (wxCoord)((1000.0 * (double)width ) / 1000.0)) );
static const double dotted[] = {2.0, 5.0};
static const double short_dashed[] = {4.0, 4.0};
static const double long_dashed[] = {4.0, 8.0};
@@ -2057,6 +1873,16 @@ void wxGtkPrintDC::SetBrush( const wxBrush& brush )
m_brush = brush;
if (m_brush.GetStyle() == wxTRANSPARENT)
{
gs_cairo->cairo_set_source_rgba( m_cairo, 0, 0, 0, 0 );
m_currentRed = 0;
m_currentBlue = 0;
m_currentGreen = 0;
m_currentAlpha = 0;
return;
}
// Brush colour.
unsigned char red = m_brush.GetColour().Red();
unsigned char blue = m_brush.GetColour().Blue();
@@ -2171,7 +1997,7 @@ void wxGtkPrintDC::SetBackgroundMode(int mode)
void wxGtkPrintDC::DoSetClippingRegion(wxCoord x, wxCoord y, wxCoord width, wxCoord height)
{
gs_cairo->cairo_rectangle ( m_cairo, LogicalToCairoX(x), LogicalToCairoY(y), LogicalToCairoXRel(width), LogicalToCairoYRel(height));
gs_cairo->cairo_rectangle ( m_cairo, XLOG2DEVREL(x), YLOG2DEVREL(y), XLOG2DEVREL(width), YLOG2DEVREL(height));
gs_cairo->cairo_clip(m_cairo);
}
@@ -2207,7 +2033,7 @@ wxCoord wxGtkPrintDC::GetCharHeight() const
int w,h;
pango_layout_get_pixel_size( m_layout, &w, &h );
return CairoToLogicalYRel(h);
return wxRound( h * m_PS2DEV );
}
wxCoord wxGtkPrintDC::GetCharWidth() const
@@ -2217,7 +2043,7 @@ wxCoord wxGtkPrintDC::GetCharWidth() const
int w,h;
pango_layout_get_pixel_size( m_layout, &w, &h );
return CairoToLogicalXRel(w);
return wxRound( w * m_PS2DEV );
}
void wxGtkPrintDC::DoGetTextExtent(const wxString& string, wxCoord *width, wxCoord *height,
@@ -2264,15 +2090,16 @@ void wxGtkPrintDC::DoGetTextExtent(const wxString& string, wxCoord *width, wxCoo
pango_layout_get_pixel_size( m_layout, &w, &h );
if (width)
*width = MapFromCairo((double)w / (double)m_scaleX);
*width = wxRound( (double)w / m_scaleX * m_PS2DEV );
if (height)
*height = MapFromCairo((double)h / (double)m_scaleY);
*height = wxRound( (double)h / m_scaleY * m_PS2DEV );
if (descent)
{
PangoLayoutIter *iter = pango_layout_get_iter(m_layout);
int baseline = pango_layout_iter_get_baseline(iter);
pango_layout_iter_free(iter);
*descent = MapFromCairo((double) h - (double) PANGO_PIXELS(baseline));
*descent = wxRound( (h - PANGO_PIXELS(baseline)) * m_PS2DEV );
}
// Reset unscaled size.
@@ -2284,58 +2111,43 @@ void wxGtkPrintDC::DoGetTextExtent(const wxString& string, wxCoord *width, wxCoo
void wxGtkPrintDC::DoGetSize(int* width, int* height) const
{
GtkPageSetup *setup = gtk_print_context_get_page_setup( m_gpc );
if (width)
*width = (int) ((double)gtk_print_context_get_width( m_gpc ) * (double)ms_resolution/72.0 + 0.5) ;
*width = wxRound( gtk_page_setup_get_paper_width( setup, GTK_UNIT_POINTS ) * m_PS2DEV );
if (height)
*height = (int) ((double)gtk_print_context_get_height( m_gpc ) * (double)ms_resolution/72.0 + 0.5);
*height = wxRound( gtk_page_setup_get_paper_height( setup, GTK_UNIT_POINTS ) * m_PS2DEV );
}
void wxGtkPrintDC::DoGetSizeMM(int *width, int *height) const
{
// This function takes margins into consideration.
gdouble w = gtk_page_setup_get_page_width( gtk_print_context_get_page_setup( m_gpc ), GTK_UNIT_MM);
gdouble h = gtk_page_setup_get_page_height( gtk_print_context_get_page_setup( m_gpc ), GTK_UNIT_MM);
GtkPageSetup *setup = gtk_print_context_get_page_setup( m_gpc );
if (width)
*width = (int) (w + 0.5);
*width = wxRound( gtk_page_setup_get_paper_width( setup, GTK_UNIT_MM ) );
if (height)
*height = (int) (h + 0.5);
*height = wxRound( gtk_page_setup_get_paper_height( setup, GTK_UNIT_MM ) );
}
wxSize wxGtkPrintDC::GetPPI() const
{
return wxSize((int) ms_resolution,(int) ms_resolution);
}
void wxGtkPrintDC::SetLogicalOrigin( wxCoord x, wxCoord y )
{
wxDC::SetLogicalOrigin( x, y );
}
void wxGtkPrintDC::SetDeviceOrigin( wxCoord x, wxCoord y )
{
wxDC::SetDeviceOrigin( x, y );
return wxSize( (int)m_resolution, (int)m_resolution );
}
void wxGtkPrintDC::SetPrintData(const wxPrintData& data)
{
m_printData = data;
if (m_printData.GetOrientation() == wxPORTRAIT)
GetSize( &m_deviceOffsetX, &m_deviceOffsetY );
else
GetSize( &m_deviceOffsetY, &m_deviceOffsetX );
}
void wxGtkPrintDC::SetResolution(int ppi)
{
// We can't change ppi of the GtkPrintContext.
ms_resolution = ppi;
// TODO: should we really support this?
}
int wxGtkPrintDC::GetResolution()
{
return ms_resolution;
return m_resolution;
}
// ----------------------------------------------------------------------------
@@ -2394,12 +2206,16 @@ void wxGtkPrintPreview::DetermineScaling()
m_previewPrintout->SetPPIScreen( (int) ((ScreenPixels.GetWidth() * 25.4) / ScreenMM.GetWidth()),
(int) ((ScreenPixels.GetHeight() * 25.4) / ScreenMM.GetHeight()) );
m_previewPrintout->SetPPIPrinter(wxGtkPrintDC::GetResolution(), wxGtkPrintDC::GetResolution());
// TODO !!!!!!!!!!!!!!!
int resolution = 600;
m_previewPrintout->SetPPIPrinter( resolution, resolution );
// Get width and height in points (1/72th of an inch)
wxSize sizeDevUnits(paper->GetSizeDeviceUnits());
sizeDevUnits.x = (wxCoord)((float)sizeDevUnits.x * wxGtkPrintDC::GetResolution() / 72.0);
sizeDevUnits.y = (wxCoord)((float)sizeDevUnits.y * wxGtkPrintDC::GetResolution() / 72.0);
sizeDevUnits.x = wxRound((double)sizeDevUnits.x * (double)resolution / 72.0);
sizeDevUnits.y = wxRound((double)sizeDevUnits.y * (double)resolution / 72.0);
wxSize sizeTenthsMM(paper->GetSize());
wxSize sizeMM(sizeTenthsMM.x / 10, sizeTenthsMM.y / 10);
@@ -2420,7 +2236,7 @@ void wxGtkPrintPreview::DetermineScaling()
m_previewPrintout->SetPaperRectPixels(wxRect(0, 0, m_pageWidth, m_pageHeight));
// At 100%, the page should look about page-size on the screen.
m_previewScaleX = (float)0.8 * 72.0 / (float)wxGtkPrintDC::GetResolution();
m_previewScaleX = 0.8 * 72.0 / (double)resolution;
m_previewScaleY = m_previewScaleX;
}
}