vcl/source/outdev/curvedshapes.cxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  * This file incorporates work covered by the following license notice:
  10  *
  11  *   Licensed to the Apache Software Foundation (ASF) under one or more
  12  *   contributor license agreements. See the NOTICE file distributed
  13  *   with this work for additional information regarding copyright
  14  *   ownership. The ASF licenses this file to you under the Apache
  15  *   License, Version 2.0 (the "License"); you may not use this file
  16  *   except in compliance with the License. You may obtain a copy of
  17  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  18  */
  19
  20 #include <cassert>
  21
  22 #include <vcl/gdimtf.hxx>
  23 #include <vcl/metaact.hxx>
  24 #include <vcl/outdev.hxx>
  25 #include <vcl/virdev.hxx>
  26
  27 #include <salgdi.hxx>
  28
  29 void OutputDevice::DrawEllipse( const tools::Rectangle& rRect )
  30 {
  31     assert(!is_double_buffered_window());
  32
  33     if ( mpMetaFile )
  34         mpMetaFile->AddAction( new MetaEllipseAction( rRect ) );
  35
  36     if  ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || ImplIsRecordLayout() )
  37         return;
  38
  39     tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
  40     if ( aRect.IsEmpty() )
  41         return;
  42
  43     // we need a graphics
  44     if ( !mpGraphics && !AcquireGraphics() )
  45         return;
  46
  47     if ( mbInitClipRegion )
  48         InitClipRegion();
  49     if ( mbOutputClipped )
  50         return;
  51
  52     if ( mbInitLineColor )
  53         InitLineColor();
  54
  55     tools::Polygon aRectPoly( aRect.Center(), aRect.GetWidth() >> 1, aRect.GetHeight() >> 1 );
  56     if ( aRectPoly.GetSize() >= 2 )
  57     {
  58         SalPoint* pPtAry = reinterpret_cast<SalPoint*>(aRectPoly.GetPointAry());
  59         if ( !mbFillColor )
  60             mpGraphics->DrawPolyLine( aRectPoly.GetSize(), pPtAry, this );
  61         else
  62         {
  63             if ( mbInitFillColor )
  64                 InitFillColor();
  65             mpGraphics->DrawPolygon( aRectPoly.GetSize(), pPtAry, this );
  66         }
  67     }
  68
  69     if( mpAlphaVDev )
  70         mpAlphaVDev->DrawEllipse( rRect );
  71 }
  72
  73 void OutputDevice::DrawArc( const tools::Rectangle& rRect,
  74                             const Point& rStartPt, const Point& rEndPt )
  75 {
  76     assert(!is_double_buffered_window());
  77
  78     if ( mpMetaFile )
  79         mpMetaFile->AddAction( new MetaArcAction( rRect, rStartPt, rEndPt ) );
  80
  81     if ( !IsDeviceOutputNecessary() || !mbLineColor || ImplIsRecordLayout() )
  82         return;
  83
  84     tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
  85     if ( aRect.IsEmpty() )
  86         return;
  87
  88     // we need a graphics
  89     if ( !mpGraphics && !AcquireGraphics() )
  90         return;
  91
  92     if ( mbInitClipRegion )
  93         InitClipRegion();
  94     if ( mbOutputClipped )
  95         return;
  96
  97     if ( mbInitLineColor )
  98         InitLineColor();
  99
 100     const Point     aStart( ImplLogicToDevicePixel( rStartPt ) );
 101     const Point     aEnd( ImplLogicToDevicePixel( rEndPt ) );
 102     tools::Polygon aArcPoly( aRect, aStart, aEnd, PolyStyle::Arc );
 103
 104     if ( aArcPoly.GetSize() >= 2 )
 105     {
 106         SalPoint* pPtAry = reinterpret_cast<SalPoint*>(aArcPoly.GetPointAry());
 107         mpGraphics->DrawPolyLine( aArcPoly.GetSize(), pPtAry, this );
 108     }
 109
 110     if( mpAlphaVDev )
 111         mpAlphaVDev->DrawArc( rRect, rStartPt, rEndPt );
 112 }
 113
 114 void OutputDevice::DrawPie( const tools::Rectangle& rRect,
 115                             const Point& rStartPt, const Point& rEndPt )
 116 {
 117     assert(!is_double_buffered_window());
 118
 119     if ( mpMetaFile )
 120         mpMetaFile->AddAction( new MetaPieAction( rRect, rStartPt, rEndPt ) );
 121
 122     if ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || ImplIsRecordLayout() )
 123         return;
 124
 125     tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
 126     if ( aRect.IsEmpty() )
 127         return;
 128
 129     // we need a graphics
 130     if ( !mpGraphics && !AcquireGraphics() )
 131         return;
 132
 133     if ( mbInitClipRegion )
 134         InitClipRegion();
 135     if ( mbOutputClipped )
 136         return;
 137
 138     if ( mbInitLineColor )
 139         InitLineColor();
 140
 141     const Point     aStart( ImplLogicToDevicePixel( rStartPt ) );
 142     const Point     aEnd( ImplLogicToDevicePixel( rEndPt ) );
 143     tools::Polygon aPiePoly( aRect, aStart, aEnd, PolyStyle::Pie );
 144
 145     if ( aPiePoly.GetSize() >= 2 )
 146     {
 147         SalPoint* pPtAry = reinterpret_cast<SalPoint*>(aPiePoly.GetPointAry());
 148         if ( !mbFillColor )
 149             mpGraphics->DrawPolyLine( aPiePoly.GetSize(), pPtAry, this );
 150         else
 151         {
 152             if ( mbInitFillColor )
 153                 InitFillColor();
 154             mpGraphics->DrawPolygon( aPiePoly.GetSize(), pPtAry, this );
 155         }
 156     }
 157
 158     if( mpAlphaVDev )
 159         mpAlphaVDev->DrawPie( rRect, rStartPt, rEndPt );
 160 }
 161
 162 void OutputDevice::DrawChord( const tools::Rectangle& rRect,
 163                               const Point& rStartPt, const Point& rEndPt )
 164 {
 165     assert(!is_double_buffered_window());
 166
 167     if ( mpMetaFile )
 168         mpMetaFile->AddAction( new MetaChordAction( rRect, rStartPt, rEndPt ) );
 169
 170     if ( !IsDeviceOutputNecessary() || (!mbLineColor && !mbFillColor) || ImplIsRecordLayout() )
 171         return;
 172
 173     tools::Rectangle aRect( ImplLogicToDevicePixel( rRect ) );
 174     if ( aRect.IsEmpty() )
 175         return;
 176
 177     // we need a graphics
 178     if ( !mpGraphics && !AcquireGraphics() )
 179         return;
 180
 181     if ( mbInitClipRegion )
 182         InitClipRegion();
 183     if ( mbOutputClipped )
 184         return;
 185
 186     if ( mbInitLineColor )
 187         InitLineColor();
 188
 189     const Point     aStart( ImplLogicToDevicePixel( rStartPt ) );
 190     const Point     aEnd( ImplLogicToDevicePixel( rEndPt ) );
 191     tools::Polygon aChordPoly( aRect, aStart, aEnd, PolyStyle::Chord );
 192
 193     if ( aChordPoly.GetSize() >= 2 )
 194     {
 195         SalPoint* pPtAry = reinterpret_cast<SalPoint*>(aChordPoly.GetPointAry());
 196         if ( !mbFillColor )
 197             mpGraphics->DrawPolyLine( aChordPoly.GetSize(), pPtAry, this );
 198         else
 199         {
 200             if ( mbInitFillColor )
 201                 InitFillColor();
 202             mpGraphics->DrawPolygon( aChordPoly.GetSize(), pPtAry, this );
 203         }
 204     }
 205
 206     if( mpAlphaVDev )
 207         mpAlphaVDev->DrawChord( rRect, rStartPt, rEndPt );
 208 }
 209
 210 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */