gecko/gfx/thebes/gfxPattern.cpp

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/* -*- Mode: C++; tab-width: 20; indent-tabs-mode: nil; c-basic-offset: 4 -*-
* ***** BEGIN LICENSE BLOCK *****
* Version: MPL 1.1/GPL 2.0/LGPL 2.1
*
* The contents of this file are subject to the Mozilla Public License Version
* 1.1 (the "License"); you may not use this file except in compliance with
* the License. You may obtain a copy of the License at
* http://www.mozilla.org/MPL/
*
* Software distributed under the License is distributed on an "AS IS" basis,
* WITHOUT WARRANTY OF ANY KIND, either express or implied. See the License
* for the specific language governing rights and limitations under the
* License.
*
* The Original Code is Mozilla Corporation code.
*
* The Initial Developer of the Original Code is Mozilla Foundation.
* Portions created by the Initial Developer are Copyright (C) 2007
* the Initial Developer. All Rights Reserved.
*
* Contributor(s):
* Stuart Parmenter <stuart@mozilla.com>
*
* Alternatively, the contents of this file may be used under the terms of
* either the GNU General Public License Version 2 or later (the "GPL"), or
* the GNU Lesser General Public License Version 2.1 or later (the "LGPL"),
* in which case the provisions of the GPL or the LGPL are applicable instead
* of those above. If you wish to allow use of your version of this file only
* under the terms of either the GPL or the LGPL, and not to allow others to
* use your version of this file under the terms of the MPL, indicate your
* decision by deleting the provisions above and replace them with the notice
* and other provisions required by the GPL or the LGPL. If you do not delete
* the provisions above, a recipient may use your version of this file under
* the terms of any one of the MPL, the GPL or the LGPL.
*
* ***** END LICENSE BLOCK ***** */
#include "gfxTypes.h"
#include "gfxPattern.h"
#include "gfxASurface.h"
#include "gfxPlatform.h"
#include "cairo.h"
gfxPattern::gfxPattern(cairo_pattern_t *aPattern)
{
mPattern = cairo_pattern_reference(aPattern);
}
gfxPattern::gfxPattern(const gfxRGBA& aColor)
{
mPattern = cairo_pattern_create_rgba(aColor.r, aColor.g, aColor.b, aColor.a);
}
// from another surface
gfxPattern::gfxPattern(gfxASurface *surface)
{
mPattern = cairo_pattern_create_for_surface(surface->CairoSurface());
}
// linear
gfxPattern::gfxPattern(gfxFloat x0, gfxFloat y0, gfxFloat x1, gfxFloat y1)
{
mPattern = cairo_pattern_create_linear(x0, y0, x1, y1);
}
// radial
gfxPattern::gfxPattern(gfxFloat cx0, gfxFloat cy0, gfxFloat radius0,
gfxFloat cx1, gfxFloat cy1, gfxFloat radius1)
{
mPattern = cairo_pattern_create_radial(cx0, cy0, radius0,
cx1, cy1, radius1);
}
gfxPattern::~gfxPattern()
{
cairo_pattern_destroy(mPattern);
}
cairo_pattern_t *
gfxPattern::CairoPattern()
{
return mPattern;
}
void
gfxPattern::AddColorStop(gfxFloat offset, const gfxRGBA& c)
{
if (gfxPlatform::GetCMSMode() == eCMSMode_All) {
gfxRGBA cms;
gfxPlatform::TransformPixel(c, cms, gfxPlatform::GetCMSRGBTransform());
// Use the original alpha to avoid unnecessary float->byte->float
// conversion errors
cairo_pattern_add_color_stop_rgba(mPattern, offset,
cms.r, cms.g, cms.b, c.a);
}
else
cairo_pattern_add_color_stop_rgba(mPattern, offset, c.r, c.g, c.b, c.a);
}
void
gfxPattern::SetMatrix(const gfxMatrix& matrix)
{
cairo_matrix_t mat = *reinterpret_cast<const cairo_matrix_t*>(&matrix);
cairo_pattern_set_matrix(mPattern, &mat);
}
gfxMatrix
gfxPattern::GetMatrix() const
{
cairo_matrix_t mat;
cairo_pattern_get_matrix(mPattern, &mat);
return gfxMatrix(*reinterpret_cast<gfxMatrix*>(&mat));
}
void
gfxPattern::SetExtend(GraphicsExtend extend)
{
if (extend == EXTEND_PAD_EDGE) {
if (cairo_pattern_get_type(mPattern) == CAIRO_PATTERN_TYPE_SURFACE) {
cairo_surface_t *surf = NULL;
cairo_pattern_get_surface (mPattern, &surf);
if (surf) {
switch (cairo_surface_get_type(surf)) {
case CAIRO_SURFACE_TYPE_WIN32_PRINTING:
case CAIRO_SURFACE_TYPE_QUARTZ:
extend = EXTEND_NONE;
break;
case CAIRO_SURFACE_TYPE_WIN32:
case CAIRO_SURFACE_TYPE_XLIB:
default:
extend = EXTEND_PAD;
break;
}
}
}
// if something went wrong, or not a surface pattern, use PAD
if (extend == EXTEND_PAD_EDGE)
extend = EXTEND_PAD;
}
cairo_pattern_set_extend(mPattern, (cairo_extend_t)extend);
}
gfxPattern::GraphicsExtend
gfxPattern::Extend() const
{
return (GraphicsExtend)cairo_pattern_get_extend(mPattern);
}
void
gfxPattern::SetFilter(GraphicsFilter filter)
{
cairo_pattern_set_filter(mPattern, (cairo_filter_t)filter);
}
gfxPattern::GraphicsFilter
gfxPattern::Filter() const
{
return (GraphicsFilter)cairo_pattern_get_filter(mPattern);
}
PRBool
gfxPattern::GetSolidColor(gfxRGBA& aColor)
{
return cairo_pattern_get_rgba(mPattern,
&aColor.r,
&aColor.g,
&aColor.b,
&aColor.a) == CAIRO_STATUS_SUCCESS;
}
already_AddRefed<gfxASurface>
gfxPattern::GetSurface()
{
cairo_surface_t *surf = nsnull;
if (cairo_pattern_get_surface (mPattern, &surf) != CAIRO_STATUS_SUCCESS)
return nsnull;
return gfxASurface::Wrap(surf);
}
gfxPattern::GraphicsPatternType
gfxPattern::GetType() const
{
return (GraphicsPatternType) cairo_pattern_get_type(mPattern);
}
int
gfxPattern::CairoStatus()
{
return cairo_pattern_status(mPattern);
}