cairo-renderer.cpp revision 6fb346988965d600415f2a8bbd5af507d82a1418
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#define __SP_CAIRO_RENDERER_C__
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh/** \file
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh * Rendering with Cairo.
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh/*
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh * Author:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh * Miklos Erdelyi <erdelyim@gmail.com>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh * Copyright (C) 2006 Miklos Erdelyi
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib *
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh * Licensed under GNU GPL
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#ifdef HAVE_CONFIG_H
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh# include "config.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#endif
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#ifndef PANGO_ENABLE_BACKEND
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#define PANGO_ENABLE_BACKEND
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#endif
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#ifndef PANGO_ENABLE_ENGINE
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#define PANGO_ENABLE_ENGINE
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#endif
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <signal.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <errno.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
90a3966dd44e306d23febc15ebd65cde07d7a4ddTed Gould#include "libnr/nr-rect.h"
16a8c7d5e433b176636a4a1260c42ea43932110bKrzysztof Kosiński#include "libnrtype/Layout-TNG.h"
54e660c4de9d37185e3953165d053526632ef4f0johanengelen#include <2geom/transforms.h>
54e660c4de9d37185e3953165d053526632ef4f0johanengelen#include <2geom/pathvector.h>
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <glib/gmem.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <glibmm/i18n.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "display/nr-arena.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "display/nr-arena-item.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "display/nr-arena-group.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "display/curve.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "display/canvas-bpath.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-item.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-item-group.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "style.h"
dd69425007680aafc47fdd994e1985625571d252bryce#include "marker.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-linear-gradient.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-radial-gradient.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-root.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-shape.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-use.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-text.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-flowtext.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-image.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-symbol.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-pattern.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-mask.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "sp-clippath.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <unit-constants.h>
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib#include "helper/png-write.h"
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib#include "helper/pixbuf-ops.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "cairo-renderer.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "cairo-render-context.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "extension/system.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "io/sys.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <cairo.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh// include support for only the compiled-in surface types
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#ifdef CAIRO_HAS_PDF_SURFACE
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <cairo-pdf.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#endif
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#ifdef CAIRO_HAS_PS_SURFACE
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include <cairo-ps.h>
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#endif
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh//#define TRACE(_args) g_printf _args
d444ed610362dab3c3e727d1b110312318b84cb8miklosh#define TRACE(_args)
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould//#define TEST(_args) _args
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould#define TEST(_args)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh// FIXME: expose these from sp-clippath/mask.cpp
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstruct SPClipPathView {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPClipPathView *next;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh unsigned int key;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRArenaItem *arenaitem;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRRect bbox;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh};
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstruct SPMaskView {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPMaskView *next;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh unsigned int key;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRArenaItem *arenaitem;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRRect bbox;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh};
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshnamespace Inkscape {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshnamespace Extension {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshnamespace Internal {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::CairoRenderer(void)
e66a49aa774c6770e99591a19873105bfeb5ce74Johan Engelen : _omitText(false)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::~CairoRenderer(void)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh /* restore default signal handling for SIGPIPE */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#if !defined(_WIN32) && !defined(__WIN32__)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh (void) signal(SIGPIPE, SIG_DFL);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#endif
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderContext*
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::createContext(void)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderContext *new_context = new CairoRenderContext(this);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh g_assert( new_context != NULL );
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh new_context->_state_stack = NULL;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh new_context->_state = NULL;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // create initial render state
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderState *state = new_context->_createState();
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen state->transform = Geom::identity();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh new_context->_state_stack = g_slist_prepend(new_context->_state_stack, state);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh new_context->_state = state;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return new_context;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshvoid
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::destroyContext(CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib delete ctx;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh/*
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshHere comes the rendering part which could be put into the 'render' methods of SPItems'
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh*/
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh/* The below functions are copy&pasted plus slightly modified from *_invoke_print functions. */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_item_invoke_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_group_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_use_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_shape_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_text_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_flowtext_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_image_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_symbol_render(SPItem *item, CairoRenderContext *ctx);
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadibstatic void sp_asbitmap_render(SPItem *item, CairoRenderContext *ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
05a66d0771cb563225b8690de04e9490b35453f2johanengelenstatic void sp_shape_render_invoke_marker_rendering(SPMarker* marker, Geom::Matrix tr, SPStyle* style, CairoRenderContext *ctx)
05a66d0771cb563225b8690de04e9490b35453f2johanengelen{
05a66d0771cb563225b8690de04e9490b35453f2johanengelen bool render = true;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen if (style->stroke_width.computed > 1e-9) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = Geom::Scale(style->stroke_width.computed) * tr;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen } else {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen render = false; // stroke width zero and marker is thus scaled down to zero, skip
05a66d0771cb563225b8690de04e9490b35453f2johanengelen }
05a66d0771cb563225b8690de04e9490b35453f2johanengelen }
05a66d0771cb563225b8690de04e9490b35453f2johanengelen
05a66d0771cb563225b8690de04e9490b35453f2johanengelen if (render) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (marker));
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = (Geom::Matrix)marker_item->transform * (Geom::Matrix)marker->c2p * tr;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen Geom::Matrix old_tr = marker_item->transform;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen marker_item->transform = tr;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen ctx->getRenderer()->renderItem (ctx, marker_item);
05a66d0771cb563225b8690de04e9490b35453f2johanengelen marker_item->transform = old_tr;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen }
05a66d0771cb563225b8690de04e9490b35453f2johanengelen}
05a66d0771cb563225b8690de04e9490b35453f2johanengelen
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_shape_render (SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRRect pbox;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPShape *shape = SP_SHAPE(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (!shape->curve) return;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen sp_item_invoke_bbox(item, &pbox, Geom::identity(), TRUE);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPStyle* style = SP_OBJECT_STYLE (item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
7cc06cc17ffc875601993118f9533dfe36bd2dd5johanengelen Geom::PathVector const & pathv = shape->curve->get_pathvector();
6fb346988965d600415f2a8bbd5af507d82a1418Johan Engelen if (pathv.empty()) return;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
7cc06cc17ffc875601993118f9533dfe36bd2dd5johanengelen ctx->renderPathVector(pathv, style, &pbox);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
68b9e386db1a231abaddbfed4d05f7539bdac786scislac // START marker
68b9e386db1a231abaddbfed4d05f7539bdac786scislac for (int i = 0; i < 2; i++) { // SP_MARKER_LOC and SP_MARKER_LOC_START
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if ( shape->marker[i] ) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac SPMarker* marker = SP_MARKER (shape->marker[i]);
68b9e386db1a231abaddbfed4d05f7539bdac786scislac Geom::Matrix tr;
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if (marker->orient_auto) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac tr = sp_shape_marker_get_transform_at_start(pathv.begin()->front());
68b9e386db1a231abaddbfed4d05f7539bdac786scislac } else {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(pathv.begin()->front().pointAt(0));
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac // MID marker
68b9e386db1a231abaddbfed4d05f7539bdac786scislac for (int i = 0; i < 3; i += 2) { // SP_MARKER_LOC and SP_MARKER_LOC_MID
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if ( !shape->marker[i] ) continue;
68b9e386db1a231abaddbfed4d05f7539bdac786scislac SPMarker* marker = SP_MARKER (shape->marker[i]);
68b9e386db1a231abaddbfed4d05f7539bdac786scislac for(Geom::PathVector::const_iterator path_it = pathv.begin(); path_it != pathv.end(); ++path_it) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac // START position
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if ( path_it != pathv.begin()
68b9e386db1a231abaddbfed4d05f7539bdac786scislac && ! ((path_it == (pathv.end()-1)) && (path_it->size_default() == 0)) ) // if this is the last path and it is a moveto-only, there is no mid marker there
68b9e386db1a231abaddbfed4d05f7539bdac786scislac {
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould Geom::Matrix tr;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould if (marker->orient_auto) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = sp_shape_marker_get_transform_at_start(path_it->front());
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould } else {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(path_it->front().pointAt(0));
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould }
05a66d0771cb563225b8690de04e9490b35453f2johanengelen sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
05a66d0771cb563225b8690de04e9490b35453f2johanengelen }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac // MID position
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if (path_it->size_default() > 1) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen Geom::Path::const_iterator curve_it1 = path_it->begin(); // incoming curve
05a66d0771cb563225b8690de04e9490b35453f2johanengelen Geom::Path::const_iterator curve_it2 = ++(path_it->begin()); // outgoing curve
05a66d0771cb563225b8690de04e9490b35453f2johanengelen while (curve_it2 != path_it->end_default())
05a66d0771cb563225b8690de04e9490b35453f2johanengelen {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen /* Put marker between curve_it1 and curve_it2.
05a66d0771cb563225b8690de04e9490b35453f2johanengelen * Loop to end_default (so including closing segment), because when a path is closed,
05a66d0771cb563225b8690de04e9490b35453f2johanengelen * there should be a midpoint marker between last segment and closing straight line segment */
05a66d0771cb563225b8690de04e9490b35453f2johanengelen Geom::Matrix tr;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen if (marker->orient_auto) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = sp_shape_marker_get_transform(*curve_it1, *curve_it2);
7079a43aa387066c2f67402d77dbe3db981b1054Ted Gould } else {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(curve_it1->pointAt(1));
7079a43aa387066c2f67402d77dbe3db981b1054Ted Gould }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
05a66d0771cb563225b8690de04e9490b35453f2johanengelen sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
54e660c4de9d37185e3953165d053526632ef4f0johanengelen
05a66d0771cb563225b8690de04e9490b35453f2johanengelen ++curve_it1;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen ++curve_it2;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac // END position
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if ( path_it != (pathv.end()-1) && !path_it->empty()) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac Geom::Curve const &lastcurve = path_it->back_default();
05a66d0771cb563225b8690de04e9490b35453f2johanengelen Geom::Matrix tr;
05a66d0771cb563225b8690de04e9490b35453f2johanengelen if (marker->orient_auto) {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = sp_shape_marker_get_transform_at_end(lastcurve);
7079a43aa387066c2f67402d77dbe3db981b1054Ted Gould } else {
05a66d0771cb563225b8690de04e9490b35453f2johanengelen tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(lastcurve.pointAt(1));
7079a43aa387066c2f67402d77dbe3db981b1054Ted Gould }
05a66d0771cb563225b8690de04e9490b35453f2johanengelen sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
7079a43aa387066c2f67402d77dbe3db981b1054Ted Gould }
54e660c4de9d37185e3953165d053526632ef4f0johanengelen }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac // END marker
68b9e386db1a231abaddbfed4d05f7539bdac786scislac for (int i = 0; i < 4; i += 3) { // SP_MARKER_LOC and SP_MARKER_LOC_END
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if ( shape->marker[i] ) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac SPMarker* marker = SP_MARKER (shape->marker[i]);
68b9e386db1a231abaddbfed4d05f7539bdac786scislac
68b9e386db1a231abaddbfed4d05f7539bdac786scislac /* Get reference to last curve in the path.
68b9e386db1a231abaddbfed4d05f7539bdac786scislac * For moveto-only path, this returns the "closing line segment". */
68b9e386db1a231abaddbfed4d05f7539bdac786scislac Geom::Path const &path_last = pathv.back();
68b9e386db1a231abaddbfed4d05f7539bdac786scislac unsigned int index = path_last.size_default();
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if (index > 0) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac index--;
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac Geom::Curve const &lastcurve = path_last[index];
68b9e386db1a231abaddbfed4d05f7539bdac786scislac
68b9e386db1a231abaddbfed4d05f7539bdac786scislac Geom::Matrix tr;
68b9e386db1a231abaddbfed4d05f7539bdac786scislac if (marker->orient_auto) {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac tr = sp_shape_marker_get_transform_at_end(lastcurve);
68b9e386db1a231abaddbfed4d05f7539bdac786scislac } else {
68b9e386db1a231abaddbfed4d05f7539bdac786scislac tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(lastcurve.pointAt(1));
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac
68b9e386db1a231abaddbfed4d05f7539bdac786scislac sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
68b9e386db1a231abaddbfed4d05f7539bdac786scislac }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_group_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPGroup *group = SP_GROUP(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderer *renderer = ctx->getRenderer();
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould TRACE(("sp_group_render opacity: %f\n", SP_SCALE24_TO_FLOAT(SP_OBJECT_STYLE(item)->opacity.value)));
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh GSList *l = g_slist_reverse(group->childList(false));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh while (l) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPObject *o = SP_OBJECT (l->data);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (SP_IS_ITEM(o)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh renderer->renderItem (ctx, SP_ITEM (o));
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh l = g_slist_remove (l, o);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_use_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh bool translated = false;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPUse *use = SP_USE(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderer *renderer = ctx->getRenderer();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if ((use->x._set && use->x.computed != 0) || (use->y._set && use->y.computed != 0)) {
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix tp(Geom::Translate(use->x.computed, use->y.computed));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->pushState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->transform(&tp);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh translated = true;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (use->child && SP_IS_ITEM(use->child)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh renderer->renderItem(ctx, SP_ITEM(use->child));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (translated) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->popState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_text_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPText *group = SP_TEXT (item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh group->layout.showGlyphs(ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_flowtext_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPFlowtext *group = SP_FLOWTEXT(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh group->layout.showGlyphs(ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_image_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPImage *image;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh guchar *px;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh int w, h, rs;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh image = SP_IMAGE (item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (!image->pixbuf) return;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if ((image->width.computed <= 0.0) || (image->height.computed <= 0.0)) return;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh px = gdk_pixbuf_get_pixels (image->pixbuf);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh w = gdk_pixbuf_get_width (image->pixbuf);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh h = gdk_pixbuf_get_height (image->pixbuf);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh rs = gdk_pixbuf_get_rowstride (image->pixbuf);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double x = image->x.computed;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double y = image->y.computed;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double width = image->width.computed;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double height = image->height.computed;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (image->aspect_align != SP_ASPECT_NONE) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh calculatePreserveAspectRatio (image->aspect_align, image->aspect_clip, (double)w, (double)h,
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh &x, &y, &width, &height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (image->aspect_clip == SP_ASPECT_SLICE && !ctx->getCurrentState()->has_overflow) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->addClippingRect(image->x.computed, image->y.computed, image->width.computed, image->height.computed);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Translate tp(x, y);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Scale s(width / (double)w, height / (double)h);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix t(s * tp);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->renderImage (px, w, h, rs, &t, SP_OBJECT_STYLE (item));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_symbol_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPSymbol *symbol = SP_SYMBOL(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (!SP_OBJECT_IS_CLONED (symbol))
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return;
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh /* Cloned <symbol> is actually renderable */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->pushState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->transform(&symbol->c2p);
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // apply viewbox if set
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (0 /*symbol->viewBox_set*/) {
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix vb2user;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double x, y, width, height;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double view_width, view_height;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh x = 0.0;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh y = 0.0;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh width = 1.0;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh height = 1.0;
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh view_width = symbol->viewBox.x1 - symbol->viewBox.x0;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh view_height = symbol->viewBox.y1 - symbol->viewBox.y0;
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh calculatePreserveAspectRatio(symbol->aspect_align, symbol->aspect_clip, view_width, view_height,
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh &x, &y,&width, &height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // [itemTransform *] translate(x, y) * scale(w/vw, h/vh) * translate(-vx, -vy);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen vb2user = Geom::identity();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh vb2user[0] = width / view_width;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh vb2user[3] = height / view_height;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh vb2user[4] = x - symbol->viewBox.x0 * vb2user[0];
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh vb2user[5] = y - symbol->viewBox.y0 * vb2user[3];
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->transform(&vb2user);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh sp_group_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->popState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_root_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPRoot *root = SP_ROOT(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderer *renderer = ctx->getRenderer();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (!ctx->getCurrentState()->has_overflow && SP_OBJECT(item)->parent)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->addClippingRect(root->x.computed, root->y.computed, root->width.computed, root->height.computed);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->pushState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh renderer->setStateForItem(ctx, item);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix tempmat (root->c2p);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen ctx->transform(&tempmat);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh sp_group_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->popState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib/**
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould This function converts the item to a raster image and includes the image into the cairo renderer.
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould It is only used for filters and then only when rendering filters as bitmaps is requested.
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib*/
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadibstatic void sp_asbitmap_render(SPItem *item, CairoRenderContext *ctx)
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib{
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // The code was adapted from sp_selection_create_bitmap_copy in selection-chemistry.cpp
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib // Calculate resolution
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib double res;
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould /** @TODO reimplement the resolution stuff (WHY?)
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib */
861fa436e7a6d6ff3eaa889b2298e0b82a0b238ctheadib res = ctx->getBitmapResolution();
861fa436e7a6d6ff3eaa889b2298e0b82a0b238ctheadib if(res == 0) {
861fa436e7a6d6ff3eaa889b2298e0b82a0b238ctheadib res = PX_PER_IN;
861fa436e7a6d6ff3eaa889b2298e0b82a0b238ctheadib }
16dc3cff4d07c7f5afdd8c74cf34530b0a6ee93btavmjong TRACE(("sp_asbitmap_render: resolution: %f\n", res ));
861fa436e7a6d6ff3eaa889b2298e0b82a0b238ctheadib
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // Get the bounding box of the selection in document coordinates.
6c3e745a94ef6b25a4ef9f018d350a7535aa45afTed Gould Geom::OptRect bbox =
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould item->getBounds(sp_item_i2d_affine(item), SPItem::RENDERING_BBOX);
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould if (!bbox) // no bbox, e.g. empty group
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould return;
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib // The width and height of the bitmap in pixels
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould unsigned width = (unsigned) floor ((bbox->max()[Geom::X] - bbox->min()[Geom::X]) * (res / PX_PER_IN));
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould unsigned height =(unsigned) floor ((bbox->max()[Geom::Y] - bbox->min()[Geom::Y]) * (res / PX_PER_IN));
479ed85bac2b7467a6678bae572404e33465a5d9acspike
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // Scale to exactly fit integer bitmap inside bounding box
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould double scale_x = (bbox->max()[Geom::X] - bbox->min()[Geom::X]) / width;
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould double scale_y = (bbox->max()[Geom::Y] - bbox->min()[Geom::Y]) / height;
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // Location of bounding box in document coordinates.
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould double shift_x = bbox->min()[Geom::X];
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould double shift_y = bbox->max()[Geom::Y];
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // For default 90 dpi, snap bitmap to pixel grid
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould if (res == PX_PER_IN) {
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib shift_x = round (shift_x);
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould shift_y = -round (-shift_y); // Correct rounding despite coordinate inversion.
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // Remove the negations when the inversion is gone.
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib }
45d0b0d0dc24df8e321cbe8a085ab9b1f60b4a42theadib
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // Calculate the matrix that will be applied to the image so that it exactly overlaps the source objects
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // Matix to put bitmap in correct place on document
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould Geom::Matrix t_on_document = (Geom::Matrix)(Geom::Scale (scale_x, -scale_y)) *
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould (Geom::Matrix)(Geom::Translate (shift_x, shift_y));
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould // ctx matrix already includes item transformation. We must substract.
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould Geom::Matrix t_item = sp_item_i2d_affine (item);
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould Geom::Matrix t = t_on_document * t_item.inverse();
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib // Do the export
09ba3247163582bf2e30e17c4c154aa259ce038acilix SPDocument *document = SP_OBJECT(item)->document;
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould GSList *items = NULL;
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould items = g_slist_append(items, item);
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould
45d0b0d0dc24df8e321cbe8a085ab9b1f60b4a42theadib GdkPixbuf *pb = sp_generate_internal_bitmap(document, NULL,
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould bbox->min()[Geom::X], bbox->min()[Geom::Y], bbox->max()[Geom::X], bbox->max()[Geom::Y],
3bd80e038b72ad220f218d7053a9089685fab17cTed Gould width, height, res, res, (guint32) 0xffffff00, items );
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib if (pb) {
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould TEST(gdk_pixbuf_save( pb, "bitmap.png", "png", NULL, NULL ));
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib unsigned char *px = gdk_pixbuf_get_pixels (pb);
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib unsigned int w = gdk_pixbuf_get_width(pb);
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib unsigned int h = gdk_pixbuf_get_height(pb);
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib unsigned int rs = gdk_pixbuf_get_rowstride(pb);
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould ctx->renderImage (px, w, h, rs, &t, SP_OBJECT_STYLE (item));
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib gdk_pixbuf_unref (pb);
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib }
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib g_slist_free (items);
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib}
5c45c5153b0415f7573f69f4ee3e946b5872a8d1theadib
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshstatic void sp_item_invoke_render(SPItem *item, CairoRenderContext *ctx)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
1babefb17e4c8157ca2a0f588625a8ac0258dc53buliabyak // Check item's visibility
1babefb17e4c8157ca2a0f588625a8ac0258dc53buliabyak if (item->isHidden()) {
1babefb17e4c8157ca2a0f588625a8ac0258dc53buliabyak return;
1babefb17e4c8157ca2a0f588625a8ac0258dc53buliabyak }
1babefb17e4c8157ca2a0f588625a8ac0258dc53buliabyak
45d0b0d0dc24df8e321cbe8a085ab9b1f60b4a42theadib SPStyle* style = SP_OBJECT_STYLE (item);
861fa436e7a6d6ff3eaa889b2298e0b82a0b238ctheadib if((ctx->getFilterToBitmap() == TRUE) && (style->filter.set != 0)) {
45d0b0d0dc24df8e321cbe8a085ab9b1f60b4a42theadib return sp_asbitmap_render(item, ctx);
45d0b0d0dc24df8e321cbe8a085ab9b1f60b4a42theadib }
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (SP_IS_ROOT(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("root\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_root_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_GROUP(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("group\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_group_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_SHAPE(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("shape\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_shape_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_USE(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("use begin---\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh sp_use_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("---use end\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_SYMBOL(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("symbol\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_symbol_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_TEXT(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("text\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_text_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_FLOWTEXT(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("flowtext\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_flowtext_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else if (SP_IS_IMAGE(item)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("image\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return sp_image_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshvoid
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::setStateForItem(CairoRenderContext *ctx, SPItem const *item)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPStyle const *style = SP_OBJECT_STYLE(item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->setStateForStyle(style);
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderState *state = ctx->getCurrentState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh state->clip_path = item->clip_ref->getObject();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh state->mask = item->mask_ref->getObject();
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak state->item_transform = Geom::Matrix (item->transform);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // If parent_has_userspace is true the parent state's transform
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // has to be used for the mask's/clippath's context.
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // This is so because we use the image's/(flow)text's transform for positioning
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // instead of explicitly specifying it and letting the renderer do the
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // transformation before rendering the item.
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item) || SP_IS_IMAGE(item))
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh state->parent_has_userspace = TRUE;
16dc3cff4d07c7f5afdd8c74cf34530b0a6ee93btavmjong TRACE(("setStateForItem opacity: %f\n", state->opacity));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshvoid
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::renderItem(CairoRenderContext *ctx, SPItem *item)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
e66a49aa774c6770e99591a19873105bfeb5ce74Johan Engelen if ( _omitText && (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) ) {
e66a49aa774c6770e99591a19873105bfeb5ce74Johan Engelen // skip text if _omitText is true
e66a49aa774c6770e99591a19873105bfeb5ce74Johan Engelen return;
e66a49aa774c6770e99591a19873105bfeb5ce74Johan Engelen }
e66a49aa774c6770e99591a19873105bfeb5ce74Johan Engelen
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->pushState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh setStateForItem(ctx, item);
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderState *state = ctx->getCurrentState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh state->need_layer = ( state->mask || state->clip_path || state->opacity != 1.0 );
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
16dc3cff4d07c7f5afdd8c74cf34530b0a6ee93btavmjong // Draw item on a temporary surface so a mask, clip path, or opacity can be applied to it.
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (state->need_layer) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh state->merge_opacity = FALSE;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->pushLayer();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix tempmat (item->transform);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen ctx->transform(&tempmat);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh sp_item_invoke_render(item, ctx);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (state->need_layer)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->popLayer();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->popState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshbool
09ba3247163582bf2e30e17c4c154aa259ce038acilixCairoRenderer::setupDocument(CairoRenderContext *ctx, SPDocument *doc, bool pageBoundingBox, SPItem *base)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
6825a6097da27fdfdf22859c0f81c208e7e22bb4Johan Engelen// PLEASE note when making changes to the boundingbox and transform calculation, corresponding changes should be made to PDFLaTeXRenderer::setupDocument !!!
6825a6097da27fdfdf22859c0f81c208e7e22bb4Johan Engelen
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh g_assert( ctx != NULL );
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould if (!base)
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould base = SP_ITEM(sp_document_root(doc));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRRect d;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould if (pageBoundingBox) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh d.x0 = d.y0 = 0;
09ff61b38270862163a561a7f45acb203db68625Johan Engelen d.x1 = sp_document_width(doc);
09ff61b38270862163a561a7f45acb203db68625Johan Engelen d.y1 = sp_document_height(doc);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh } else {
025db6f90298127a666cd24bcfc2e22fd35ca84dspeleo sp_item_invoke_bbox(base, &d, sp_item_i2d_affine(base), TRUE, SPItem::RENDERING_BBOX);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould if (ctx->_vector_based_target) {
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould // convert from px to pt
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould d.x0 *= PT_PER_PX;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould d.x1 *= PT_PER_PX;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould d.y0 *= PT_PER_PX;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould d.y1 *= PT_PER_PX;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould }
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould ctx->_width = d.x1-d.x0;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould ctx->_height = d.y1-d.y0;
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould
16dc3cff4d07c7f5afdd8c74cf34530b0a6ee93btavmjong TRACE(("setupDocument: %f x %f\n", ctx->_width, ctx->_height));
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould bool ret = ctx->setupSurface(ctx->_width, ctx->_height);
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak
e9b6af083e34e2397a8ddbe9781920733d09d151Ted Gould if (ret && !pageBoundingBox)
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak {
d703e5d08553a3dd5eb4f0a11040de79071bdcfbKrzysztof Kosiński double high = sp_document_height(doc);
d703e5d08553a3dd5eb4f0a11040de79071bdcfbKrzysztof Kosiński if (ctx->_vector_based_target)
d703e5d08553a3dd5eb4f0a11040de79071bdcfbKrzysztof Kosiński high *= PT_PER_PX;
d703e5d08553a3dd5eb4f0a11040de79071bdcfbKrzysztof Kosiński
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak Geom::Matrix tp(Geom::Translate(-d.x0 * (ctx->_vector_based_target ? PX_PER_PT : 1.0),
d703e5d08553a3dd5eb4f0a11040de79071bdcfbKrzysztof Kosiński (d.y1 - high) * (ctx->_vector_based_target ? PX_PER_PT : 1.0)));
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak ctx->transform(&tp);
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak }
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak
ddc1f1d1291eb21b244c7328d260c7d4a43be2fcbuliabyak return ret;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "macros.h" // SP_PRINT_*
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould// Apply an SVG clip path
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshvoid
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::applyClipPath(CairoRenderContext *ctx, SPClipPath const *cp)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh g_assert( ctx != NULL && ctx->_is_valid );
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (cp == NULL)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return;
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh CairoRenderContext::CairoRenderMode saved_mode = ctx->getRenderMode();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->setRenderMode(CairoRenderContext::RENDER_MODE_CLIP);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix saved_ctm;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (cp->clipPathUnits == SP_CONTENT_UNITS_OBJECTBOUNDINGBOX) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh //SP_PRINT_DRECT("clipd", cp->display->bbox);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRRect clip_bbox(cp->display->bbox);
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix t(Geom::Scale(clip_bbox.x1 - clip_bbox.x0, clip_bbox.y1 - clip_bbox.y0));
3955580a5a68a873b098921626f5b9d841b964ecjaspervdg t[4] = clip_bbox.x0;
3955580a5a68a873b098921626f5b9d841b964ecjaspervdg t[5] = clip_bbox.y0;
3955580a5a68a873b098921626f5b9d841b964ecjaspervdg t *= ctx->getCurrentState()->transform;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->getTransform(&saved_ctm);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->setTransform(&t);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("BEGIN clip\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPObject *co = SP_OBJECT(cp);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh for (SPObject *child = sp_object_first_child(co) ; child != NULL; child = SP_OBJECT_NEXT(child) ) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (SP_IS_ITEM(child)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPItem *item = SP_ITEM(child);
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak // combine transform of the item in clippath and the item using clippath:
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak Geom::Matrix tempmat (item->transform);
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak tempmat = tempmat * (ctx->getCurrentState()->item_transform);
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak // render this item in clippath
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak ctx->pushState();
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak ctx->transform(&tempmat);
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak setStateForItem(ctx, item);
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak sp_item_invoke_render(item, ctx);
bf7069a487ba218c4542e4adc5497ebd746ab929buliabyak ctx->popState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("END clip\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // do clipping only if this was the first call to applyClipPath
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (ctx->getClipMode() == CairoRenderContext::CLIP_MODE_PATH
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh && saved_mode == CairoRenderContext::RENDER_MODE_NORMAL)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh cairo_clip(ctx->_cr);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (cp->clipPathUnits == SP_CONTENT_UNITS_OBJECTBOUNDINGBOX)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->setTransform(&saved_ctm);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->setRenderMode(saved_mode);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
63d6ddd517060979dd8b8fd41aad3faca7be3c5cTed Gould// Apply an SVG mask
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshvoid
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshCairoRenderer::applyMask(CairoRenderContext *ctx, SPMask const *mask)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh g_assert( ctx != NULL && ctx->_is_valid );
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (mask == NULL)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh //SP_PRINT_DRECT("maskd", &mask->display->bbox);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh NRRect mask_bbox(mask->display->bbox);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh // TODO: should the bbox be transformed if maskUnits != userSpaceOnUse ?
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (mask->maskContentUnits == SP_CONTENT_UNITS_OBJECTBOUNDINGBOX) {
17d87f5698f5c2958d38c6a6207c7b322a7adaf9johanengelen Geom::Matrix t(Geom::Scale(mask_bbox.x1 - mask_bbox.x0, mask_bbox.y1 - mask_bbox.y0));
3955580a5a68a873b098921626f5b9d841b964ecjaspervdg t[4] = mask_bbox.x0;
3955580a5a68a873b098921626f5b9d841b964ecjaspervdg t[5] = mask_bbox.y0;
3955580a5a68a873b098921626f5b9d841b964ecjaspervdg t *= ctx->getCurrentState()->transform;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->setTransform(&t);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
533909ea7bb06d8f0658b7d448fa4283afd3f52ftavmjong // Clip mask contents... but...
533909ea7bb06d8f0658b7d448fa4283afd3f52ftavmjong // The mask's bounding box is the "geometric bounding box" which doesn't allow for
533909ea7bb06d8f0658b7d448fa4283afd3f52ftavmjong // filters which extend outside the bounding box. So don't clip.
533909ea7bb06d8f0658b7d448fa4283afd3f52ftavmjong // ctx->addClippingRect(mask_bbox.x0, mask_bbox.y0, mask_bbox.x1 - mask_bbox.x0, mask_bbox.y1 - mask_bbox.y0);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->pushState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("BEGIN mask\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPObject *co = SP_OBJECT(mask);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh for (SPObject *child = sp_object_first_child(co) ; child != NULL; child = SP_OBJECT_NEXT(child) ) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (SP_IS_ITEM(child)) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh SPItem *item = SP_ITEM(child);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh renderItem(ctx, item);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh TRACE(("END mask\n"));
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh ctx->popState();
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshvoid
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6mikloshcalculatePreserveAspectRatio(unsigned int aspect_align, unsigned int aspect_clip, double vp_width, double vp_height,
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double *x, double *y, double *width, double *height)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh{
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh if (aspect_align == SP_ASPECT_NONE)
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh return;
4b1c2be41ce8c1a88502c1b1885ad1468646fbfftheadib
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double scalex, scaley, scale;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh double new_width, new_height;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh scalex = *width / vp_width;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh scaley = *height / vp_height;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh scale = (aspect_clip == SP_ASPECT_MEET) ? MIN(scalex, scaley) : MAX(scalex, scaley);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh new_width = vp_width * scale;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh new_height = vp_height * scale;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh /* Now place viewbox to requested position */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh switch (aspect_align) {
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMIN_YMIN:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMID_YMIN:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *x -= 0.5 * (new_width - *width);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMAX_YMIN:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *x -= 1.0 * (new_width - *width);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMIN_YMID:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *y -= 0.5 * (new_height - *height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMID_YMID:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *x -= 0.5 * (new_width - *width);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *y -= 0.5 * (new_height - *height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMAX_YMID:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *x -= 1.0 * (new_width - *width);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *y -= 0.5 * (new_height - *height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMIN_YMAX:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *y -= 1.0 * (new_height - *height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMID_YMAX:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *x -= 0.5 * (new_width - *width);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *y -= 1.0 * (new_height - *height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh case SP_ASPECT_XMAX_YMAX:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *x -= 1.0 * (new_width - *width);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *y -= 1.0 * (new_height - *height);
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh default:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh break;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh }
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *width = new_width;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh *height = new_height;
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh}
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#include "clear-n_.h"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh} /* namespace Internal */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh} /* namespace Extension */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh} /* namespace Inkscape */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh#undef TRACE
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh/* End of GNU GPL code */
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh/*
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh Local Variables:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh mode:c++
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh c-file-style:"stroustrup"
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh indent-tabs-mode:nil
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh fill-column:99
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh End:
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh*/
b7f07692f95074fdcf74c7350fbf5f3099ffc1b6miklosh// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :