/**
* @file
* SVG <hatch> implementation
*/
/*
* Authors:
* Tomasz Boczkowski <penginsbacon@gmail.com>
* Jon A. Cruz <jon@joncruz.org>
*
* Copyright (C) 2014 Tomasz Boczkowski
*
* Released under GNU GPL, read the file 'COPYING' for more information
*/
#include <cstring>
#include <string>
#include "display/cairo-utils.h"
#include "display/drawing-context.h"
#include "display/drawing-surface.h"
#include "display/drawing-pattern.h"
#include "attributes.h"
#include "document-private.h"
#include "uri.h"
#include "style.h"
#include "sp-hatch.h"
#include "sp-hatch-path.h"
: SPPaintServer(),
href(),
_hatchUnits_set(false),
_hatchContentUnits_set(false),
_hatchTransform_set(false),
_x(),
_y(),
_pitch(),
_rotate(),
_display()
{
ref = new SPHatchReference(this);
// TODO check that these should start already as unset:
}
}
{
readAttr("hatchUnits");
readAttr("hatchContentUnits");
readAttr("hatchTransform");
readAttr("x");
readAttr("y");
readAttr("pitch");
readAttr("rotate");
readAttr("xlink:href");
readAttr( "style" );
// Register ourselves
}
{
if (document) {
// Unregister ourselves
}
}
}
if (ref) {
delete ref;
}
SPPaintServer::release();
}
{
if (path_child) {
if (ac) {
}
}
}
//FIXME: notify all hatches that refer to this child set
}
{
switch (key) {
case SP_ATTR_HATCHUNITS:
if (value) {
} else {
}
_hatchUnits_set = true;
} else {
_hatchUnits_set = false;
}
break;
if (value) {
} else {
}
_hatchContentUnits_set = true;
} else {
_hatchContentUnits_set = false;
}
break;
case SP_ATTR_HATCHTRANSFORM: {
_hatchTransform = t;
_hatchTransform_set = true;
} else {
_hatchTransform_set = false;
}
break;
}
case SP_ATTR_X:
break;
case SP_ATTR_Y:
break;
case SP_ATTR_PITCH:
break;
case SP_ATTR_ROTATE:
break;
case SP_ATTR_XLINK_HREF:
// Href unchanged, do nothing.
} else {
if (value) {
// First, set the href field; it's only used in the "unchanged" check above.
// Now do the attaching, which emits the changed signal.
if (value) {
try {
} catch (Inkscape::BadURIException &e) {
}
} else {
}
}
}
break;
default:
if (SP_ATTRIBUTE_IS_CSS(key)) {
style->readFromObject( this );
} else {
}
break;
}
}
{
bool matched = false;
if (hatchPath) {
matched = true;
}
}
return matched;
}
{
if (src) {
if (hatchPath) {
}
}
}
return list;
}
{
if (src) {
if (hatchPath) {
}
}
}
return list;
}
// TODO: ::remove_child and ::order_changed handles - see SPPattern
{
if (flags & SP_OBJECT_MODIFIED_FLAG) {
}
}
}
}
_updateView(*iter);
}
}
{
if (flags & SP_OBJECT_MODIFIED_FLAG) {
}
}
}
}
{
if (old_ref) {
}
if (hatch) {
}
if (!_hasHatchPatchChildren(this)) {
if (old_hatch) {
}
if (hatch) {
}
for (ChildIterator child_iter = oldhatchPaths.begin(); child_iter != oldhatchPaths.end(); ++child_iter) {
}
for (ChildIterator child_iter = newhatchPaths.begin(); child_iter != newhatchPaths.end(); ++child_iter) {
if (cai) {
}
}
}
}
}
_onRefModified(ref, 0);
}
{
// Conditional to avoid causing infinite loop if there's a cycle in the href chain.
}
{
return src ? src : this; // document is broken, we can't get to root; but at least we can return pat which is supposedly a valid hatch
}
// Access functions that look up fields up the chain of referenced hatchs and return the first one which is set
// FIXME: all of them must use chase_hrefs as children() and rootHatch()
{
if (pat_i->_hatchUnits_set) {
break;
}
}
return units;
}
{
if (pat_i->_hatchContentUnits_set) {
break;
}
}
return units;
}
{
if (pat_i->_hatchTransform_set) {
return pat_i->_hatchTransform;
}
}
return _hatchTransform;
}
{
break;
}
}
return val;
}
{
break;
}
}
return val;
}
{
break;
}
}
return val;
}
{
break;
}
}
return val;
}
{
bool valid = false;
if (pitch() > 0) {
valid = true;
}
}
}
return valid;
}
Inkscape::DrawingPattern *SPHatch::show(Inkscape::Drawing &drawing, unsigned int key, Geom::OptRect bbox)
{
//TODO: set some debug flag to see DrawingPattern
if (cai) {
}
}
return ai;
}
{
}
return;
}
}
}
{
} else {
}
}
return result;
}
{
return _calculateRenderInfo(*iter);
}
}
return info;
}
{
//The rendering of hatch overflow is implemented by repeated drawing
//of hatch paths over one strip. Within each iteration paths are moved by pitch value.
//The movement progresses from right to left. This gives the same result
//as drawing whole strips in left-to-right order.
}
{
if (extents) {
double tile_x = x();
double tile_y = y();
}
// Pattern size in hatch space
// Content to bbox
}
// Tile (hatch space) to user.
Geom::Affine ps2user = Geom::Translate(tile_x, tile_y) * Geom::Rotate::from_degrees(tile_rotate) * hatchTransform();
} else {
}
}
return info;
}
//calculates strip extents in content space
{
return Geom::OptInterval();
} else {
double tile_x = x();
double tile_y = y();
Geom::Affine ps2user = Geom::Translate(tile_x, tile_y) * Geom::Rotate::from_degrees(tile_rotate) * hatchTransform();
for (int i = 0; i < 4; ++i) {
}
}
}
if (hatchUnits() == UNITS_OBJECTBOUNDINGBOX) {
}
return extents;
}
}
cairo_pattern_t* SPHatch::pattern_new(cairo_t * /*base_ct*/, Geom::OptRect const &/*bbox*/, double /*opacity*/)
{
//this code should not be used
//it is however required by the fact that SPPaintServer::hatch_new is pure virtual
}
{
break;
}
}
}
//
: child_transform(),
tile_rect(),
overflow_steps(0),
{
}
{
}
//
bbox(),
{
}
{
// remember, do not delete arenaitem here
}
/*
Local Variables:
mode:c++
c-file-style:"stroustrup"
c-file-offsets:((innamespace . 0)(inline-open . 0)(case-label . +))
indent-tabs-mode:nil
fill-column:99
End:
*/
// vim: filetype=cpp:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:fileencoding=utf-8:textwidth=99 :