// Purpose: graphics context methods common to all platforms
// Author: Stefan Csomor
// Modified by:
-// Created:
+// Created:
// RCS-ID: $Id$
// Copyright: (c) Stefan Csomor
// Licence: wxWindows licence
#include "wx/bitmap.h"
#include "wx/dcmemory.h"
#include "wx/region.h"
+ #include "wx/log.h"
#endif
-#if !defined(wxMAC_USE_CORE_GRAPHICS_BLEND_MODES)
-#define wxMAC_USE_CORE_GRAPHICS_BLEND_MODES 0
-#endif
-
-//-----------------------------------------------------------------------------
-// constants
-//-----------------------------------------------------------------------------
-
-static const double RAD2DEG = 180.0 / M_PI;
+#include "wx/private/graphics.h"
//-----------------------------------------------------------------------------
// Local functions
//-----------------------------------------------------------------------------
+//-----------------------------------------------------------------------------
+// wxGraphicsObject
+//-----------------------------------------------------------------------------
+
IMPLEMENT_DYNAMIC_CLASS(wxGraphicsObject, wxObject)
-IMPLEMENT_ABSTRACT_CLASS(wxGraphicsRenderer, wxObject)
+wxGraphicsObjectRefData::wxGraphicsObjectRefData( wxGraphicsRenderer* renderer )
+{
+ m_renderer = renderer;
+}
+wxGraphicsObjectRefData::wxGraphicsObjectRefData( const wxGraphicsObjectRefData* data )
+{
+ m_renderer = data->m_renderer;
+}
+wxGraphicsRenderer* wxGraphicsObjectRefData::GetRenderer() const
+{
+ return m_renderer ;
+}
+
+wxGraphicsObjectRefData* wxGraphicsObjectRefData::Clone() const
+{
+ return new wxGraphicsObjectRefData(this);
+}
+
+wxGraphicsObject::wxGraphicsObject()
+{
+}
+
+wxGraphicsObject::wxGraphicsObject( wxGraphicsRenderer* renderer )
+{
+ SetRefData( new wxGraphicsObjectRefData(renderer));
+}
+
+wxGraphicsObject::~wxGraphicsObject()
+{
+}
+
+bool wxGraphicsObject::IsNull() const
+{
+ return m_refData == NULL;
+}
+
+wxGraphicsRenderer* wxGraphicsObject::GetRenderer() const
+{
+ return ( IsNull() ? NULL : GetGraphicsData()->GetRenderer() );
+}
+
+wxGraphicsObjectRefData* wxGraphicsObject::GetGraphicsData() const
+{
+ return (wxGraphicsObjectRefData*) m_refData;
+}
+
+wxObjectRefData* wxGraphicsObject::CreateRefData() const
+{
+ wxLogDebug(wxT("A Null Object cannot be changed"));
+ return NULL;
+}
+
+wxObjectRefData* wxGraphicsObject::CloneRefData(const wxObjectRefData* data) const
+{
+ const wxGraphicsObjectRefData* ptr = (const wxGraphicsObjectRefData*) data;
+ return ptr->Clone();
+}
+
+//-----------------------------------------------------------------------------
+// pens etc.
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsPen, wxGraphicsObject)
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsBrush, wxGraphicsObject)
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsFont, wxGraphicsObject)
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsBitmap, wxGraphicsObject)
+
+WXDLLIMPEXP_DATA_CORE(wxGraphicsPen) wxNullGraphicsPen;
+WXDLLIMPEXP_DATA_CORE(wxGraphicsBrush) wxNullGraphicsBrush;
+WXDLLIMPEXP_DATA_CORE(wxGraphicsFont) wxNullGraphicsFont;
+WXDLLIMPEXP_DATA_CORE(wxGraphicsBitmap) wxNullGraphicsBitmap;
+
+//-----------------------------------------------------------------------------
+// matrix
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsMatrix, wxGraphicsObject)
+WXDLLIMPEXP_DATA_CORE(wxGraphicsMatrix) wxNullGraphicsMatrix;
-IMPLEMENT_ABSTRACT_CLASS(wxGraphicsMatrix, wxGraphicsObject)
+// concatenates the matrix
+void wxGraphicsMatrix::Concat( const wxGraphicsMatrix *t )
+{
+ AllocExclusive();
+ GetMatrixData()->Concat(t->GetMatrixData());
+}
-IMPLEMENT_ABSTRACT_CLASS(wxGraphicsPath, wxGraphicsObject)
+// sets the matrix to the respective values
+void wxGraphicsMatrix::Set(wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty)
+{
+ AllocExclusive();
+ GetMatrixData()->Set(a,b,c,d,tx,ty);
+}
-IMPLEMENT_ABSTRACT_CLASS(wxGraphicsPen, wxGraphicsObject)
+// gets the component valuess of the matrix
+void wxGraphicsMatrix::Get(wxDouble* a, wxDouble* b, wxDouble* c,
+ wxDouble* d, wxDouble* tx, wxDouble* ty) const
+{
+ GetMatrixData()->Get(a, b, c, d, tx, ty);
+}
-IMPLEMENT_ABSTRACT_CLASS(wxGraphicsBrush, wxGraphicsObject)
+// makes this the inverse matrix
+void wxGraphicsMatrix::Invert()
+{
+ AllocExclusive();
+ GetMatrixData()->Invert();
+}
-IMPLEMENT_ABSTRACT_CLASS(wxGraphicsFont, wxGraphicsObject)
+// returns true if the elements of the transformation matrix are equal ?
+bool wxGraphicsMatrix::IsEqual( const wxGraphicsMatrix* t) const
+{
+ return GetMatrixData()->IsEqual(t->GetMatrixData());
+}
+
+// return true if this is the identity matrix
+bool wxGraphicsMatrix::IsIdentity() const
+{
+ return GetMatrixData()->IsIdentity();
+}
-wxPoint2DDouble wxGraphicsPath::GetCurrentPoint()
+// add the translation to this matrix
+void wxGraphicsMatrix::Translate( wxDouble dx , wxDouble dy )
+{
+ AllocExclusive();
+ GetMatrixData()->Translate(dx,dy);
+}
+
+// add the scale to this matrix
+void wxGraphicsMatrix::Scale( wxDouble xScale , wxDouble yScale )
+{
+ AllocExclusive();
+ GetMatrixData()->Scale(xScale,yScale);
+}
+
+// add the rotation to this matrix (radians)
+void wxGraphicsMatrix::Rotate( wxDouble angle )
+{
+ AllocExclusive();
+ GetMatrixData()->Rotate(angle);
+}
+
+//
+// apply the transforms
+//
+
+// applies that matrix to the point
+void wxGraphicsMatrix::TransformPoint( wxDouble *x, wxDouble *y ) const
+{
+ GetMatrixData()->TransformPoint(x,y);
+}
+
+// applies the matrix except for translations
+void wxGraphicsMatrix::TransformDistance( wxDouble *dx, wxDouble *dy ) const
+{
+ GetMatrixData()->TransformDistance(dx,dy);
+}
+
+// returns the native representation
+void * wxGraphicsMatrix::GetNativeMatrix() const
+{
+ return GetMatrixData()->GetNativeMatrix();
+}
+
+//-----------------------------------------------------------------------------
+// path
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_DYNAMIC_CLASS(wxGraphicsPath, wxGraphicsObject)
+WXDLLIMPEXP_DATA_CORE(wxGraphicsPath) wxNullGraphicsPath;
+
+// convenience functions, for using wxPoint2DDouble etc
+
+wxPoint2DDouble wxGraphicsPath::GetCurrentPoint() const
{
wxDouble x,y;
- GetCurrentPoint(x,y);
+ GetCurrentPoint(&x,&y);
return wxPoint2DDouble(x,y);
}
AddArc(c.m_x, c.m_y, r, startAngle, endAngle, clockwise);
}
-wxRect2DDouble wxGraphicsPath::GetBox()
+wxRect2DDouble wxGraphicsPath::GetBox() const
{
- wxDouble x,y,w,h;
- GetBox(&x,&y,&w,&h);
- return wxRect2DDouble( x,y,w,h );
+ wxDouble x,y,w,h;
+ GetBox(&x,&y,&w,&h);
+ return wxRect2DDouble( x,y,w,h );
+}
+
+bool wxGraphicsPath::Contains( const wxPoint2DDouble& c, wxPolygonFillMode fillStyle ) const
+{
+ return Contains( c.m_x, c.m_y, fillStyle);
+}
+
+// true redirections
+
+// begins a new subpath at (x,y)
+void wxGraphicsPath::MoveToPoint( wxDouble x, wxDouble y )
+{
+ AllocExclusive();
+ GetPathData()->MoveToPoint(x,y);
+}
+
+// adds a straight line from the current point to (x,y)
+void wxGraphicsPath::AddLineToPoint( wxDouble x, wxDouble y )
+{
+ AllocExclusive();
+ GetPathData()->AddLineToPoint(x,y);
+}
+
+// adds a cubic Bezier curve from the current point, using two control points and an end point
+void wxGraphicsPath::AddCurveToPoint( wxDouble cx1, wxDouble cy1, wxDouble cx2, wxDouble cy2, wxDouble x, wxDouble y )
+{
+ AllocExclusive();
+ GetPathData()->AddCurveToPoint(cx1,cy1,cx2,cy2,x,y);
+}
+
+// adds another path
+void wxGraphicsPath::AddPath( const wxGraphicsPath& path )
+{
+ AllocExclusive();
+ GetPathData()->AddPath(path.GetPathData());
+}
+
+// closes the current sub-path
+void wxGraphicsPath::CloseSubpath()
+{
+ AllocExclusive();
+ GetPathData()->CloseSubpath();
+}
+
+// gets the last point of the current path, (0,0) if not yet set
+void wxGraphicsPath::GetCurrentPoint( wxDouble* x, wxDouble* y) const
+{
+ GetPathData()->GetCurrentPoint(x,y);
+}
+
+// adds an arc of a circle centering at (x,y) with radius (r) from startAngle to endAngle
+void wxGraphicsPath::AddArc( wxDouble x, wxDouble y, wxDouble r, wxDouble startAngle, wxDouble endAngle, bool clockwise )
+{
+ AllocExclusive();
+ GetPathData()->AddArc(x,y,r,startAngle,endAngle,clockwise);
}
//
-// Emulations
+// These are convenience functions which - if not available natively will be assembled
+// using the primitives from above
//
+// adds a quadratic Bezier curve from the current point, using a control point and an end point
void wxGraphicsPath::AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y )
+{
+ AllocExclusive();
+ GetPathData()->AddQuadCurveToPoint(cx,cy,x,y);
+}
+
+// appends a rectangle as a new closed subpath
+void wxGraphicsPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+{
+ AllocExclusive();
+ GetPathData()->AddRectangle(x,y,w,h);
+}
+
+// appends an ellipsis as a new closed subpath fitting the passed rectangle
+void wxGraphicsPath::AddCircle( wxDouble x, wxDouble y, wxDouble r )
+{
+ AllocExclusive();
+ GetPathData()->AddCircle(x,y,r);
+}
+
+// appends a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
+void wxGraphicsPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
+{
+ GetPathData()->AddArcToPoint(x1,y1,x2,y2,r);
+}
+
+// appends an ellipse
+void wxGraphicsPath::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h)
+{
+ AllocExclusive();
+ GetPathData()->AddEllipse(x,y,w,h);
+}
+
+// appends a rounded rectangle
+void wxGraphicsPath::AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius)
+{
+ AllocExclusive();
+ GetPathData()->AddRoundedRectangle(x,y,w,h,radius);
+}
+
+// returns the native path
+void * wxGraphicsPath::GetNativePath() const
+{
+ return GetPathData()->GetNativePath();
+}
+
+// give the native path returned by GetNativePath() back (there might be some deallocations necessary)
+void wxGraphicsPath::UnGetNativePath(void *p)const
+{
+ GetPathData()->UnGetNativePath(p);
+}
+
+// transforms each point of this path by the matrix
+void wxGraphicsPath::Transform( const wxGraphicsMatrix& matrix )
+{
+ AllocExclusive();
+ GetPathData()->Transform(matrix.GetMatrixData());
+}
+
+// gets the bounding box enclosing all points (possibly including control points)
+void wxGraphicsPath::GetBox(wxDouble *x, wxDouble *y, wxDouble *w, wxDouble *h) const
+{
+ GetPathData()->GetBox(x,y,w,h);
+}
+
+bool wxGraphicsPath::Contains( wxDouble x, wxDouble y, wxPolygonFillMode fillStyle ) const
+{
+ return GetPathData()->Contains(x,y,fillStyle);
+}
+
+//
+// Emulations, these mus be implemented in the ...Data classes in order to allow for proper overrides
+//
+
+void wxGraphicsPathData::AddQuadCurveToPoint( wxDouble cx, wxDouble cy, wxDouble x, wxDouble y )
{
// calculate using degree elevation to a cubic bezier
wxPoint2DDouble c1;
wxPoint2DDouble c2;
- wxPoint2DDouble start = GetCurrentPoint();
+ wxPoint2DDouble start;
+ GetCurrentPoint(&start.m_x,&start.m_y);
wxPoint2DDouble end(x,y);
wxPoint2DDouble c(cx,cy);
c1 = wxDouble(1/3.0) * start + wxDouble(2/3.0) * c;
AddCurveToPoint(c1.m_x,c1.m_y,c2.m_x,c2.m_y,x,y);
}
-void wxGraphicsPath::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
+void wxGraphicsPathData::AddRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h )
{
MoveToPoint(x,y);
AddLineToPoint(x,y+h);
CloseSubpath();
}
-void wxGraphicsPath::AddCircle( wxDouble x, wxDouble y, wxDouble r )
+void wxGraphicsPathData::AddCircle( wxDouble x, wxDouble y, wxDouble r )
{
MoveToPoint(x+r,y);
AddArc( x,y,r,0,2*M_PI,false);
CloseSubpath();
}
+void wxGraphicsPathData::AddEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h)
+{
+ if (w <= 0. || h <= 0.)
+ return;
+
+ wxDouble rw = w/2;
+ wxDouble rh = h/2;
+ wxDouble xc = x + rw;
+ wxDouble yc = y + rh;
+ wxGraphicsMatrix m = GetRenderer()->CreateMatrix();
+ m.Translate(xc,yc);
+ m.Scale(rw/rh,1.0);
+ wxGraphicsPath p = GetRenderer()->CreatePath();
+ p.AddCircle(0,0,rh);
+ p.Transform(m);
+ AddPath(p.GetPathData());
+}
+
+void wxGraphicsPathData::AddRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius)
+{
+ if ( radius == 0 )
+ AddRectangle(x,y,w,h);
+ else
+ {
+ MoveToPoint( x + w, y + h / 2);
+ AddArcToPoint(x + w, y + h, x + w / 2, y + h, radius);
+ AddArcToPoint(x, y + h, x, y + h / 2, radius);
+ AddArcToPoint(x, y , x + w / 2, y, radius);
+ AddArcToPoint(x + w, y, x + w, y + h / 2, radius);
+ CloseSubpath();
+ }
+}
+
// draws a an arc to two tangents connecting (current) to (x1,y1) and (x1,y1) to (x2,y2), also a straight line from (current) to (x1,y1)
-void wxGraphicsPath::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
-{
- wxPoint2DDouble current = GetCurrentPoint();
+void wxGraphicsPathData::AddArcToPoint( wxDouble x1, wxDouble y1 , wxDouble x2, wxDouble y2, wxDouble r )
+{
+ wxPoint2DDouble current;
+ GetCurrentPoint(¤t.m_x,¤t.m_y);
wxPoint2DDouble p1(x1,y1);
wxPoint2DDouble p2(x2,y2);
wxDouble dist = r / sin(alpha/2) * cos(alpha/2);
// calculate tangential points
wxPoint2DDouble t1 = dist*v1 + p1;
- wxPoint2DDouble t2 = dist*v2 + p1;
wxPoint2DDouble nv1 = v1;
nv1.SetVectorAngle(v1.GetVectorAngle()-90);
wxDouble a1 = v1.GetVectorAngle()+90;
wxDouble a2 = v2.GetVectorAngle()-90;
- AddLineToPoint(t1);
+ AddLineToPoint(t1.m_x,t1.m_y);
AddArc(c.m_x,c.m_y,r,DegToRad(a1),DegToRad(a2),true);
- AddLineToPoint(p2);
+ AddLineToPoint(p2.m_x,p2.m_y);
+}
+
+//-----------------------------------------------------------------------------
+// wxGraphicsGradientStops
+//-----------------------------------------------------------------------------
+
+void wxGraphicsGradientStops::Add(const wxGraphicsGradientStop& stop)
+{
+ for ( wxVector<wxGraphicsGradientStop>::iterator it = m_stops.begin();
+ it != m_stops.end();
+ ++it )
+ {
+ if ( stop.GetPosition() < it->GetPosition() )
+ {
+ if ( it != m_stops.begin() )
+ {
+ m_stops.insert(it, stop);
+ }
+ else // we shouldn't be inserting it at the beginning
+ {
+ wxFAIL_MSG( "invalid gradient stop position < 0" );
+ }
+
+ return;
+ }
+ }
+
+ if ( stop.GetPosition() == 1. )
+ {
+ m_stops.insert(m_stops.end() - 1, stop);
+ }
+ else
+ {
+ wxFAIL_MSG( "invalid gradient stop position > 1" );
+ }
+}
+
+void * wxGraphicsBitmap::GetNativeBitmap() const
+{
+ return GetBitmapData()->GetNativeBitmap();
}
//-----------------------------------------------------------------------------
IMPLEMENT_ABSTRACT_CLASS(wxGraphicsContext, wxObject)
-wxGraphicsContext::wxGraphicsContext(wxGraphicsRenderer* renderer) : wxGraphicsObject(renderer)
+wxGraphicsContext::wxGraphicsContext(wxGraphicsRenderer* renderer) :
+ wxGraphicsObject(renderer),
+ m_antialias(wxANTIALIAS_DEFAULT),
+ m_composition(wxCOMPOSITION_OVER),
+ m_enableOffset(false)
+{
+}
+
+wxGraphicsContext::~wxGraphicsContext()
+{
+}
+
+bool wxGraphicsContext::StartDoc(const wxString& WXUNUSED(message))
{
- m_pen = NULL;
- m_releasePen = false;
- m_brush = NULL;
- m_releaseBrush = false;
- m_font = NULL;
- m_releaseFont = false;
+ return true;
}
-wxGraphicsContext::~wxGraphicsContext()
+void wxGraphicsContext::EndDoc()
{
- wxASSERT_MSG( m_pen == NULL , wxT("No pen should be selected during destruction") );
- wxASSERT_MSG( m_brush == NULL , wxT("No pen should be selected during destruction") );
+}
+
+void wxGraphicsContext::StartPage(wxDouble WXUNUSED(width),
+ wxDouble WXUNUSED(height))
+{
+}
+
+void wxGraphicsContext::EndPage()
+{
+}
+
+void wxGraphicsContext::Flush()
+{
+}
+
+void wxGraphicsContext::EnableOffset(bool enable)
+{
+ m_enableOffset = enable;
+}
+
+#if 0
+void wxGraphicsContext::SetAlpha( wxDouble WXUNUSED(alpha) )
+{
+}
+
+wxDouble wxGraphicsContext::GetAlpha() const
+{
+ return 1.0;
+}
+#endif
+
+void wxGraphicsContext::GetDPI( wxDouble* dpiX, wxDouble* dpiY)
+{
+ *dpiX = 72.0;
+ *dpiY = 72.0;
}
// sets the pen
-void wxGraphicsContext::SetPen( wxGraphicsPen* pen , bool release )
+void wxGraphicsContext::SetPen( const wxGraphicsPen& pen )
{
- if ( m_releasePen )
- delete m_pen;
m_pen = pen;
- m_releasePen = release;
}
void wxGraphicsContext::SetPen( const wxPen& pen )
{
- if ( pen.GetStyle() == wxTRANSPARENT )
- SetPen( NULL );
+ if ( !pen.IsOk() || pen.GetStyle() == wxPENSTYLE_TRANSPARENT )
+ SetPen( wxNullGraphicsPen );
else
SetPen( CreatePen( pen ) );
}
-
+
// sets the brush for filling
-void wxGraphicsContext::SetBrush( wxGraphicsBrush* brush , bool release )
+void wxGraphicsContext::SetBrush( const wxGraphicsBrush& brush )
{
- if ( m_releaseBrush )
- delete m_brush;
m_brush = brush;
- m_releaseBrush = release;
}
void wxGraphicsContext::SetBrush( const wxBrush& brush )
{
- if ( brush.GetStyle() == wxTRANSPARENT )
- SetBrush( NULL );
+ if ( !brush.IsOk() || brush.GetStyle() == wxBRUSHSTYLE_TRANSPARENT )
+ SetBrush( wxNullGraphicsBrush );
else
SetBrush( CreateBrush( brush ) );
}
// sets the brush for filling
-void wxGraphicsContext::SetFont( wxGraphicsFont* font , bool release )
+void wxGraphicsContext::SetFont( const wxGraphicsFont& font )
{
- if ( m_releaseFont )
- delete m_font;
m_font = font;
- m_releaseFont = release;
}
void wxGraphicsContext::SetFont( const wxFont& font, const wxColour& colour )
{
- SetFont( CreateFont( font, colour ) );
+ if ( font.IsOk() )
+ SetFont( CreateFont( font, colour ) );
+ else
+ SetFont( wxNullGraphicsFont );
}
-void wxGraphicsContext::DrawPath( const wxGraphicsPath *path, int fillStyle )
+void wxGraphicsContext::DrawPath( const wxGraphicsPath& path, wxPolygonFillMode fillStyle )
{
FillPath( path , fillStyle );
StrokePath( path );
}
-void wxGraphicsContext::DrawText( const wxString &str, wxDouble x, wxDouble y, wxDouble angle )
+void
+wxGraphicsContext::DoDrawRotatedText(const wxString &str,
+ wxDouble x,
+ wxDouble y,
+ wxDouble angle)
{
Translate(x,y);
Rotate( -angle );
Translate(-x,-y);
}
+void
+wxGraphicsContext::DoDrawFilledText(const wxString &str,
+ wxDouble x,
+ wxDouble y,
+ const wxGraphicsBrush& backgroundBrush)
+{
+ wxGraphicsBrush formerBrush = m_brush;
+ wxGraphicsPen formerPen = m_pen;
+ wxDouble width;
+ wxDouble height;
+ wxDouble descent;
+ wxDouble externalLeading;
+ GetTextExtent( str , &width, &height, &descent, &externalLeading );
+ SetBrush( backgroundBrush );
+ // to make sure our 'OffsetToPixelBoundaries' doesn't move the fill shape
+ SetPen( wxNullGraphicsPen );
+
+ DrawRectangle(x , y, width, height);
+
+ DrawText( str, x ,y);
+ SetBrush( formerBrush );
+ SetPen( formerPen );
+}
+
+void
+wxGraphicsContext::DoDrawRotatedFilledText(const wxString &str,
+ wxDouble x, wxDouble y,
+ wxDouble angle,
+ const wxGraphicsBrush& backgroundBrush)
+{
+ wxGraphicsBrush formerBrush = m_brush;
+ wxGraphicsPen formerPen = m_pen;
+
+ wxDouble width;
+ wxDouble height;
+ wxDouble descent;
+ wxDouble externalLeading;
+ GetTextExtent( str , &width, &height, &descent, &externalLeading );
+ SetBrush( backgroundBrush );
+ // to make sure our 'OffsetToPixelBoundaries' doesn't move the fill shape
+ SetPen( wxNullGraphicsPen );
+
+ wxGraphicsPath path = CreatePath();
+ path.MoveToPoint( x , y );
+ path.AddLineToPoint( (int) (x + sin(angle) * height) , (int) (y + cos(angle) * height) );
+ path.AddLineToPoint(
+ (int) (x + sin(angle) * height + cos(angle) * width) ,
+ (int) (y + cos(angle) * height - sin(angle) * width));
+ path.AddLineToPoint((int) (x + cos(angle) * width) , (int) (y - sin(angle) * width) );
+ FillPath( path );
+ DrawText( str, x ,y, angle);
+ SetBrush( formerBrush );
+ SetPen( formerPen );
+}
+
void wxGraphicsContext::StrokeLine( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2)
{
- wxGraphicsPath* path = CreatePath();
- path->MoveToPoint(x1, y1);
- path->AddLineToPoint( x2, y2 );
+ wxGraphicsPath path = CreatePath();
+ path.MoveToPoint(x1, y1);
+ path.AddLineToPoint( x2, y2 );
StrokePath( path );
- delete path;
}
void wxGraphicsContext::DrawRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h)
{
- wxGraphicsPath* path = CreatePath();
- path->AddRectangle( x , y , w , h );
+ wxGraphicsPath path = CreatePath();
+ path.AddRectangle( x , y , w , h );
DrawPath( path );
- delete path;
}
void wxGraphicsContext::DrawEllipse( wxDouble x, wxDouble y, wxDouble w, wxDouble h)
{
- wxGraphicsPath* path = CreatePath();
- if ( w == h )
- {
- path->AddCircle( x+w/2,y+w/2,w/2);
- DrawPath(path);
- }
- else
- {
- PushState();
- Translate(x+w/2,y+h/2);
- wxDouble factor = ((wxDouble) w) / h;
- Scale( factor , 1.0);
- path->AddCircle(0,0,h/2);
- DrawPath(path);
- PopState();
- }
- delete path;
+ wxGraphicsPath path = CreatePath();
+ path.AddEllipse(x,y,w,h);
+ DrawPath(path);
}
void wxGraphicsContext::DrawRoundedRectangle( wxDouble x, wxDouble y, wxDouble w, wxDouble h, wxDouble radius)
{
- wxGraphicsPath* path = CreatePath();
- if ( radius == 0)
- {
- path->AddRectangle( x , y , w , h );
- DrawPath( path );
- }
- else
- {
- PushState();
- Translate( x , y );
-
- path->MoveToPoint(w, h / 2);
- path->AddArcToPoint(w, h, w / 2, h, radius);
- path->AddArcToPoint(0, h, 0, h / 2, radius);
- path->AddArcToPoint(0, 0, w / 2, 0, radius);
- path->AddArcToPoint(w, 0, w, h / 2, radius);
- path->CloseSubpath();
- DrawPath( path );
- PopState();
- }
- delete path;
+ wxGraphicsPath path = CreatePath();
+ path.AddRoundedRectangle(x,y,w,h,radius);
+ DrawPath(path);
}
void wxGraphicsContext::StrokeLines( size_t n, const wxPoint2DDouble *points)
{
wxASSERT(n > 1);
- wxGraphicsPath* path = CreatePath();
- path->MoveToPoint(points[0].m_x, points[0].m_y);
+ wxGraphicsPath path = CreatePath();
+ path.MoveToPoint(points[0].m_x, points[0].m_y);
for ( size_t i = 1; i < n; ++i)
- path->AddLineToPoint( points[i].m_x, points[i].m_y );
+ path.AddLineToPoint( points[i].m_x, points[i].m_y );
StrokePath( path );
- delete path;
}
-void wxGraphicsContext::DrawLines( size_t n, const wxPoint2DDouble *points, int fillStyle)
+void wxGraphicsContext::DrawLines( size_t n, const wxPoint2DDouble *points, wxPolygonFillMode fillStyle)
{
wxASSERT(n > 1);
- wxGraphicsPath* path = CreatePath();
- path->MoveToPoint(points[0].m_x, points[0].m_y);
+ wxGraphicsPath path = CreatePath();
+ path.MoveToPoint(points[0].m_x, points[0].m_y);
for ( size_t i = 1; i < n; ++i)
- path->AddLineToPoint( points[i].m_x, points[i].m_y );
+ path.AddLineToPoint( points[i].m_x, points[i].m_y );
DrawPath( path , fillStyle);
- delete path;
}
void wxGraphicsContext::StrokeLines( size_t n, const wxPoint2DDouble *beginPoints, const wxPoint2DDouble *endPoints)
{
wxASSERT(n > 0);
- wxGraphicsPath* path = CreatePath();
+ wxGraphicsPath path = CreatePath();
for ( size_t i = 0; i < n; ++i)
{
- path->MoveToPoint(beginPoints[i].m_x, beginPoints[i].m_y);
- path->AddLineToPoint( endPoints[i].m_x, endPoints[i].m_y );
+ path.MoveToPoint(beginPoints[i].m_x, beginPoints[i].m_y);
+ path.AddLineToPoint( endPoints[i].m_x, endPoints[i].m_y );
}
StrokePath( path );
- delete path;
}
// create a 'native' matrix corresponding to these values
-wxGraphicsMatrix* wxGraphicsContext::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
- wxDouble tx, wxDouble ty)
+wxGraphicsMatrix wxGraphicsContext::CreateMatrix( wxDouble a, wxDouble b, wxDouble c, wxDouble d,
+ wxDouble tx, wxDouble ty) const
{
return GetRenderer()->CreateMatrix(a,b,c,d,tx,ty);
}
-wxGraphicsPath * wxGraphicsContext::CreatePath()
+wxGraphicsPath wxGraphicsContext::CreatePath() const
{
return GetRenderer()->CreatePath();
}
-wxGraphicsPen* wxGraphicsContext::CreatePen(const wxPen& pen)
+wxGraphicsPen wxGraphicsContext::CreatePen(const wxPen& pen) const
{
return GetRenderer()->CreatePen(pen);
}
-wxGraphicsBrush* wxGraphicsContext::CreateBrush(const wxBrush& brush )
+wxGraphicsBrush wxGraphicsContext::CreateBrush(const wxBrush& brush ) const
{
return GetRenderer()->CreateBrush(brush);
}
-// sets the brush to a linear gradient, starting at (x1,y1) with color c1 to (x2,y2) with color c2
-wxGraphicsBrush* wxGraphicsContext::CreateLinearGradientBrush( wxDouble x1, wxDouble y1, wxDouble x2, wxDouble y2,
- const wxColour&c1, const wxColour&c2)
+wxGraphicsBrush
+wxGraphicsContext::CreateLinearGradientBrush(
+ wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxColour& c1, const wxColour& c2) const
+{
+ return GetRenderer()->CreateLinearGradientBrush
+ (
+ x1, y1,
+ x2, y2,
+ wxGraphicsGradientStops(c1,c2)
+ );
+}
+
+wxGraphicsBrush
+wxGraphicsContext::CreateLinearGradientBrush(
+ wxDouble x1, wxDouble y1,
+ wxDouble x2, wxDouble y2,
+ const wxGraphicsGradientStops& gradientStops) const
{
- return GetRenderer()->CreateLinearGradientBrush(x1,y1,x2,y2,c1,c2);
+ return GetRenderer()->CreateLinearGradientBrush(x1,y1,x2,y2, gradientStops);
}
-// sets the brush to a radial gradient originating at (xo,yc) with color oColor and ends on a circle around (xc,yc)
-// with radius r and color cColor
-wxGraphicsBrush* wxGraphicsContext::CreateRadialGradientBrush( wxDouble xo, wxDouble yo, wxDouble xc, wxDouble yc, wxDouble radius,
- const wxColour &oColor, const wxColour &cColor)
+wxGraphicsBrush
+wxGraphicsContext::CreateRadialGradientBrush(
+ wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxColour &oColor, const wxColour &cColor) const
{
- return GetRenderer()->CreateRadialGradientBrush(xo,yo,xc,yc,radius,oColor,cColor);
+ return GetRenderer()->CreateRadialGradientBrush
+ (
+ xo, yo,
+ xc, yc, radius,
+ wxGraphicsGradientStops(oColor, cColor)
+ );
}
-// sets the font
-wxGraphicsFont* wxGraphicsContext::CreateFont( const wxFont &font , const wxColour &col )
+wxGraphicsBrush
+wxGraphicsContext::CreateRadialGradientBrush(
+ wxDouble xo, wxDouble yo,
+ wxDouble xc, wxDouble yc, wxDouble radius,
+ const wxGraphicsGradientStops& gradientStops) const
+{
+ return GetRenderer()->CreateRadialGradientBrush
+ (
+ xo, yo,
+ xc, yc, radius,
+ gradientStops
+ );
+}
+
+wxGraphicsFont wxGraphicsContext::CreateFont( const wxFont &font , const wxColour &col ) const
{
return GetRenderer()->CreateFont(font,col);
}
-wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc)
+wxGraphicsFont
+wxGraphicsContext::CreateFont(double size,
+ const wxString& facename,
+ int flags,
+ const wxColour& col) const
+{
+ return GetRenderer()->CreateFont(size, facename, flags, col);
+}
+
+wxGraphicsBitmap wxGraphicsContext::CreateBitmap( const wxBitmap& bmp ) const
+{
+ return GetRenderer()->CreateBitmap(bmp);
+}
+
+#if wxUSE_IMAGE
+wxGraphicsBitmap wxGraphicsContext::CreateBitmapFromImage(const wxImage& image) const
+{
+ return GetRenderer()->CreateBitmapFromImage(image);
+}
+#endif // wxUSE_IMAGE
+
+wxGraphicsBitmap wxGraphicsContext::CreateSubBitmap( const wxGraphicsBitmap &bmp, wxDouble x, wxDouble y, wxDouble w, wxDouble h ) const
+{
+ return GetRenderer()->CreateSubBitmap(bmp,x,y,w,h);
+}
+
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxWindowDC& dc)
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
}
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxMemoryDC& dc)
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
+}
+
+#if wxUSE_PRINTING_ARCHITECTURE
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxPrinterDC& dc)
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
+}
+#endif
+
+#ifdef __WXMSW__
+#if wxUSE_ENH_METAFILE
+/* static */ wxGraphicsContext* wxGraphicsContext::Create( const wxEnhMetaFileDC& dc)
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(dc);
+}
+#endif
+#endif
+
wxGraphicsContext* wxGraphicsContext::CreateFromNative( void * context )
{
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContextFromNativeContext(context);
return wxGraphicsRenderer::GetDefaultRenderer()->CreateContext(window);
}
+#if wxUSE_IMAGE
+/* static */ wxGraphicsContext* wxGraphicsContext::Create(wxImage& image)
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateContextFromImage(image);
+}
+#endif // wxUSE_IMAGE
+
+wxGraphicsContext* wxGraphicsContext::Create()
+{
+ return wxGraphicsRenderer::GetDefaultRenderer()->CreateMeasuringContext();
+}
+
+//-----------------------------------------------------------------------------
+// wxGraphicsRenderer
+//-----------------------------------------------------------------------------
+
+IMPLEMENT_ABSTRACT_CLASS(wxGraphicsRenderer, wxObject)
+
#endif // wxUSE_GRAPHICS_CONTEXT
projects / wxWidgets.git / blobdiff