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index 86e04fb548e2904feb7676102bde39f7427b208f..67f9354d8cac97085e57fc87b6f18d90cbc29df8 100644 (file)
-#define __SP_CAIRO_RENDERER_C__
-
/** \file
* Rendering with Cairo.
*/
/*
* Author:
* Miklos Erdelyi <erdelyim@gmail.com>
+ * Jon A. Cruz <jon@joncruz.org>
+ * Abhishek Sharma
*
* Copyright (C) 2006 Miklos Erdelyi
*
#include <errno.h>
#include "libnr/nr-rect.h"
+#include "libnrtype/Layout-TNG.h"
#include <2geom/transforms.h>
#include <2geom/pathvector.h>
namespace Internal {
CairoRenderer::CairoRenderer(void)
+ : _omitText(false)
{}
CairoRenderer::~CairoRenderer(void)
static void sp_symbol_render(SPItem *item, CairoRenderContext *ctx);
static void sp_asbitmap_render(SPItem *item, CairoRenderContext *ctx);
-/* TODO FIXME: this does not render painting-marker-01-f.svg of SVG1.1 Test suite correctly. (orientation of one of the markers middle left ) */
+static void sp_shape_render_invoke_marker_rendering(SPMarker* marker, Geom::Matrix tr, SPStyle* style, CairoRenderContext *ctx)
+{
+ bool render = true;
+ if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
+ if (style->stroke_width.computed > 1e-9) {
+ tr = Geom::Scale(style->stroke_width.computed) * tr;
+ } else {
+ render = false; // stroke width zero and marker is thus scaled down to zero, skip
+ }
+ }
+
+ if (render) {
+ SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (marker));
+ tr = (Geom::Matrix)marker_item->transform * (Geom::Matrix)marker->c2p * tr;
+ Geom::Matrix old_tr = marker_item->transform;
+ marker_item->transform = tr;
+ ctx->getRenderer()->renderItem (ctx, marker_item);
+ marker_item->transform = old_tr;
+ }
+}
+
static void sp_shape_render (SPItem *item, CairoRenderContext *ctx)
{
NRRect pbox;
if (!shape->curve) return;
- /* fixme: Think (Lauris) */
- sp_item_invoke_bbox(item, &pbox, Geom::identity(), TRUE);
+ item->invoke_bbox( &pbox, Geom::identity(), TRUE);
SPStyle* style = SP_OBJECT_STYLE (item);
- CairoRenderer *renderer = ctx->getRenderer();
Geom::PathVector const & pathv = shape->curve->get_pathvector();
+ if (pathv.empty()) return;
ctx->renderPathVector(pathv, style, &pbox);
- /* TODO: make code prettier: lots of variables can be taken out of the loop! */
- for(Geom::PathVector::const_iterator path_it = pathv.begin(); path_it != pathv.end(); ++path_it) {
- if ( shape->marker[SP_MARKER_LOC_START] ) {
- SPMarker* marker = SP_MARKER (shape->marker[SP_MARKER_LOC_START]);
- SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (shape->marker[SP_MARKER_LOC_START]));
-
+ // START marker
+ for (int i = 0; i < 2; i++) { // SP_MARKER_LOC and SP_MARKER_LOC_START
+ if ( shape->marker[i] ) {
+ SPMarker* marker = SP_MARKER (shape->marker[i]);
Geom::Matrix tr;
if (marker->orient_auto) {
- tr = sp_shape_marker_get_transform_at_start(path_it->front());
+ tr = sp_shape_marker_get_transform_at_start(pathv.begin()->front());
} else {
- tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(path_it->front().pointAt(0));
+ tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(pathv.begin()->front().pointAt(0));
}
-
- if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
- tr = Geom::Scale(style->stroke_width.computed) * tr;
- }
-
- tr = (Geom::Matrix)marker_item->transform * (Geom::Matrix)marker->c2p * tr;
-
- Geom::Matrix old_tr = marker_item->transform;
- marker_item->transform = tr;
- renderer->renderItem (ctx, marker_item);
- marker_item->transform = old_tr;
+ sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
}
-
- if ( shape->marker[SP_MARKER_LOC_MID] && (path_it->size_default() > 1) ) {
- Geom::Path::const_iterator curve_it1 = path_it->begin(); // incoming curve
- Geom::Path::const_iterator curve_it2 = ++(path_it->begin()); // outgoing curve
- while (curve_it2 != path_it->end_default())
+ }
+ // MID marker
+ for (int i = 0; i < 3; i += 2) { // SP_MARKER_LOC and SP_MARKER_LOC_MID
+ if ( !shape->marker[i] ) continue;
+ SPMarker* marker = SP_MARKER (shape->marker[i]);
+ for(Geom::PathVector::const_iterator path_it = pathv.begin(); path_it != pathv.end(); ++path_it) {
+ // START position
+ if ( path_it != pathv.begin()
+ && ! ((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
{
- /* Put marker between curve_it1 and curve_it2.
- * Loop to end_default (so including closing segment), because when a path is closed,
- * there should be a midpoint marker between last segment and closing straight line segment */
-
- SPMarker* marker = SP_MARKER (shape->marker[SP_MARKER_LOC_MID]);
- SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (shape->marker[SP_MARKER_LOC_MID]));
-
Geom::Matrix tr;
if (marker->orient_auto) {
- tr = sp_shape_marker_get_transform(*curve_it1, *curve_it2);
+ tr = sp_shape_marker_get_transform_at_start(path_it->front());
} else {
- tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(curve_it1->pointAt(1));
+ tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(path_it->front().pointAt(0));
}
-
- if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
- tr = Geom::Scale(style->stroke_width.computed) * tr;
+ sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
+ }
+ // MID position
+ if (path_it->size_default() > 1) {
+ Geom::Path::const_iterator curve_it1 = path_it->begin(); // incoming curve
+ Geom::Path::const_iterator curve_it2 = ++(path_it->begin()); // outgoing curve
+ while (curve_it2 != path_it->end_default())
+ {
+ /* Put marker between curve_it1 and curve_it2.
+ * Loop to end_default (so including closing segment), because when a path is closed,
+ * there should be a midpoint marker between last segment and closing straight line segment */
+ Geom::Matrix tr;
+ if (marker->orient_auto) {
+ tr = sp_shape_marker_get_transform(*curve_it1, *curve_it2);
+ } else {
+ tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(curve_it1->pointAt(1));
+ }
+
+ sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
+
+ ++curve_it1;
+ ++curve_it2;
}
-
- tr = (Geom::Matrix)marker_item->transform * (Geom::Matrix)marker->c2p * tr;
-
- Geom::Matrix old_tr = marker_item->transform;
- marker_item->transform = tr;
- renderer->renderItem (ctx, marker_item);
- marker_item->transform = old_tr;
-
- ++curve_it1;
- ++curve_it2;
+ }
+ // END position
+ if ( path_it != (pathv.end()-1) && !path_it->empty()) {
+ Geom::Curve const &lastcurve = path_it->back_default();
+ Geom::Matrix tr;
+ if (marker->orient_auto) {
+ tr = sp_shape_marker_get_transform_at_end(lastcurve);
+ } else {
+ tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(lastcurve.pointAt(1));
+ }
+ sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
}
}
-
- if ( shape->marker[SP_MARKER_LOC_END] ) {
- SPMarker* marker = SP_MARKER (shape->marker[SP_MARKER_LOC_END]);
- SPItem* marker_item = sp_item_first_item_child (SP_OBJECT (shape->marker[SP_MARKER_LOC_END]));
+ }
+ // END marker
+ for (int i = 0; i < 4; i += 3) { // SP_MARKER_LOC and SP_MARKER_LOC_END
+ if ( shape->marker[i] ) {
+ SPMarker* marker = SP_MARKER (shape->marker[i]);
/* Get reference to last curve in the path.
* For moveto-only path, this returns the "closing line segment". */
- unsigned int index = path_it->size_default();
+ Geom::Path const &path_last = pathv.back();
+ unsigned int index = path_last.size_default();
if (index > 0) {
index--;
}
- Geom::Curve const &lastcurve = (*path_it)[index];
+ Geom::Curve const &lastcurve = path_last[index];
Geom::Matrix tr;
if (marker->orient_auto) {
tr = Geom::Rotate::from_degrees(marker->orient) * Geom::Translate(lastcurve.pointAt(1));
}
- if (marker->markerUnits == SP_MARKER_UNITS_STROKEWIDTH) {
- tr = Geom::Scale(style->stroke_width.computed) * tr;
- }
-
- tr = (Geom::Matrix)marker_item->transform * (Geom::Matrix)marker->c2p * tr;
-
- Geom::Matrix old_tr = marker_item->transform;
- marker_item->transform = tr;
- renderer->renderItem (ctx, marker_item);
- marker_item->transform = old_tr;
+ sp_shape_render_invoke_marker_rendering(marker, tr, style, ctx);
}
}
}
TRACE(("sp_asbitmap_render: resolution: %f\n", res ));
// Get the bounding box of the selection in document coordinates.
- NRRect bbox(item->getBounds(sp_item_i2d_affine(item), SPItem::RENDERING_BBOX ));
+ Geom::OptRect bbox =
+ item->getBounds(item->i2d_affine(), SPItem::RENDERING_BBOX);
+
+ if (!bbox) // no bbox, e.g. empty group
+ return;
// The width and height of the bitmap in pixels
- unsigned width = (unsigned) floor ((bbox.x1 - bbox.x0) * (res / PX_PER_IN));
- unsigned height =(unsigned) floor ((bbox.y1 - bbox.y0) * (res / PX_PER_IN));
+ unsigned width = (unsigned) floor ((bbox->max()[Geom::X] - bbox->min()[Geom::X]) * (res / PX_PER_IN));
+ unsigned height =(unsigned) floor ((bbox->max()[Geom::Y] - bbox->min()[Geom::Y]) * (res / PX_PER_IN));
// Scale to exactly fit integer bitmap inside bounding box
- double scale_x = (bbox.x1 - bbox.x0) / width;
- double scale_y = (bbox.y1 - bbox.y0) / height;
+ double scale_x = (bbox->max()[Geom::X] - bbox->min()[Geom::X]) / width;
+ double scale_y = (bbox->max()[Geom::Y] - bbox->min()[Geom::Y]) / height;
// Location of bounding box in document coordinates.
- double shift_x = bbox.x0;
- double shift_y = bbox.y1;
+ double shift_x = bbox->min()[Geom::X];
+ double shift_y = bbox->max()[Geom::Y];
// For default 90 dpi, snap bitmap to pixel grid
if (res == PX_PER_IN) {
(Geom::Matrix)(Geom::Translate (shift_x, shift_y));
// ctx matrix already includes item transformation. We must substract.
- Geom::Matrix t_item = sp_item_i2d_affine (item);
+ Geom::Matrix t_item = item->i2d_affine ();
Geom::Matrix t = t_on_document * t_item.inverse();
// Do the export
items = g_slist_append(items, item);
GdkPixbuf *pb = sp_generate_internal_bitmap(document, NULL,
- bbox.x0, bbox.y0, bbox.x1, bbox.y1, width, height, res, res, (guint32) 0xffffff00, items );
+ bbox->min()[Geom::X], bbox->min()[Geom::Y], bbox->max()[Geom::X], bbox->max()[Geom::Y],
+ width, height, res, res, (guint32) 0xffffff00, items );
if (pb) {
TEST(gdk_pixbuf_save( pb, "bitmap.png", "png", NULL, NULL ));
void
CairoRenderer::renderItem(CairoRenderContext *ctx, SPItem *item)
{
+ if ( _omitText && (SP_IS_TEXT(item) || SP_IS_FLOWTEXT(item)) ) {
+ // skip text if _omitText is true
+ return;
+ }
+
ctx->pushState();
setStateForItem(ctx, item);
bool
CairoRenderer::setupDocument(CairoRenderContext *ctx, SPDocument *doc, bool pageBoundingBox, SPItem *base)
{
+// PLEASE note when making changes to the boundingbox and transform calculation, corresponding changes should be made to PDFLaTeXRenderer::setupDocument !!!
+
g_assert( ctx != NULL );
- if (!base)
- base = SP_ITEM(sp_document_root(doc));
+ if (!base) {
+ base = SP_ITEM(doc->getRoot());
+ }
NRRect d;
if (pageBoundingBox) {
d.x0 = d.y0 = 0;
- d.x1 = ceil(sp_document_width(doc));
- d.y1 = ceil(sp_document_height(doc));
+ d.x1 = doc->getWidth();
+ d.y1 = doc->getHeight();
} else {
- sp_item_invoke_bbox(base, &d, sp_item_i2r_affine(base), TRUE, SPItem::RENDERING_BBOX);
+ base->invoke_bbox( &d, base->i2d_affine(), TRUE, SPItem::RENDERING_BBOX);
}
if (ctx->_vector_based_target) {
@@ -601,7 +633,7 @@ CairoRenderer::setupDocument(CairoRenderContext *ctx, SPDocument *doc, bool page
if (ret && !pageBoundingBox)
{
- double high = sp_document_height(doc);
+ double high = doc->getHeight();
if (ctx->_vector_based_target)
high *= PT_PER_PX;
TRACE(("BEGIN clip\n"));
SPObject *co = SP_OBJECT(cp);
- for (SPObject *child = sp_object_first_child(co) ; child != NULL; child = SP_OBJECT_NEXT(child) ) {
+ for ( SPObject *child = co->firstChild() ; child; child = child->getNext() ) {
if (SP_IS_ITEM(child)) {
SPItem *item = SP_ITEM(child);
TRACE(("BEGIN mask\n"));
SPObject *co = SP_OBJECT(mask);
- for (SPObject *child = sp_object_first_child(co) ; child != NULL; child = SP_OBJECT_NEXT(child) ) {
+ for ( SPObject *child = co->firstChild() ; child; child = child->getNext() ) {
if (SP_IS_ITEM(child)) {
SPItem *item = SP_ITEM(child);
renderItem(ctx, item);
@@ -782,4 +814,4 @@ calculatePreserveAspectRatio(unsigned int aspect_align, unsigned int aspect_clip
fill-column:99
End:
*/
-// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:encoding=utf-8:textwidth=99 :
+// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :