/* * 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 #include #include #include #include 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(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(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(glyphs), numGlyphs, spacing); ::SetBkMode(hdc, TRANSPARENT); #if USE(WXGC) g->ReleaseHDC(hdc); #endif delete [] spacing; } }