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/*
* Copyright (C) 2007 Kevin Watters, Kevin Ollivier. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE COMPUTER, INC. OR
* CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
* EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
* PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
* PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "config.h"
#include "GlyphBuffer.h"
#include "GraphicsContext.h"
#include "SimpleFontData.h"
#include <wx/defs.h>
#include <wx/dcclient.h>
#include <wx/dcgraph.h>
#include <wx/gdicmn.h>
#include <vector>
using namespace std;
//-----------------------------------------------------------------------------
// constants
//-----------------------------------------------------------------------------
const double RAD2DEG = 180.0 / M_PI;
//-----------------------------------------------------------------------------
// Local functions
//-----------------------------------------------------------------------------
static inline double dmin(double a, double b) { return a < b ? a : b; }
static inline double dmax(double a, double b) { return a > b ? a : b; }
static inline double DegToRad(double deg) { return (deg * M_PI) / 180.0; }
static inline double RadToDeg(double deg) { return (deg * 180.0) / M_PI; }
#include "wx/msw/private.h"
// TODO remove this dependency (gdiplus needs the macros)
#ifndef max
#define max(a,b) (((a) > (b)) ? (a) : (b))
#endif
#ifndef min
#define min(a,b) (((a) < (b)) ? (a) : (b))
#endif
#include "gdiplus.h"
namespace WebCore {
void drawTextWithSpacing(GraphicsContext* graphicsContext, const SimpleFontData* font, const wxColour& color, const GlyphBuffer& glyphBuffer, int from, int numGlyphs, const FloatPoint& point)
{
#if USE(WXGC)
wxGCDC* dc = static_cast<wxGCDC*>(graphicsContext->platformContext());
#else
wxDC* dc = graphicsContext->platformContext();
#endif
// get the native HDC handle to draw using native APIs
HDC hdc = 0;
float y = point.y() - font->fontMetrics().ascent();
float x = point.x();
#if USE(WXGC)
// when going from GdiPlus -> Gdi, any GdiPlus transformations are lost
// so we need to alter the coordinates to reflect their transformed point.
double xtrans = 0;
double ytrans = 0;
wxGraphicsContext* gc = dc->GetGraphicsContext();
gc->GetTransform().TransformPoint(&xtrans, &ytrans);
Gdiplus::Graphics* g;
if (gc) {
g = (Gdiplus::Graphics*)gc->GetNativeContext();
hdc = g->GetHDC();
}
x += (int)xtrans;
y += (int)ytrans;
#else
hdc = static_cast<HDC>(dc->GetHDC());
#endif
// ExtTextOut wants the offsets as an array of ints, so extract them
// from the glyph buffer
const GlyphBufferGlyph* glyphs = glyphBuffer.glyphs(from);
const GlyphBufferAdvance* advances = glyphBuffer.advances(from);
int* spacing = new int[numGlyphs - from];
for (unsigned i = 0; i < numGlyphs; ++i)
spacing[i] = advances[i].width();
wxFont* wxfont = font->getWxFont();
if (wxfont && wxfont->IsOk())
::SelectObject(hdc, GetHfontOf(*wxfont));
if (color.Ok())
::SetTextColor(hdc, color.GetPixel());
// do not draw background behind characters
::SetBkMode(hdc, TRANSPARENT);
// draw text with optional character widths array
wxString string = wxString((wxChar*)(&glyphs[from]), numGlyphs);
::ExtTextOut(hdc, x, y, ETO_GLYPH_INDEX, 0, reinterpret_cast<const WCHAR*>(glyphs), numGlyphs, spacing);
::SetBkMode(hdc, TRANSPARENT);
#if USE(WXGC)
g->ReleaseHDC(hdc);
#endif
delete [] spacing;
}
}
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