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/*
* Copyright (c) 2022 Samsung Electronics Co., Ltd. All rights reserved.
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
* The above copyright notice and this permission notice shall be included in all
* copies or substantial portions of the Software.
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
#include "tvgSvgCssStyle.h"
#include <cstring>
/************************************************************************/
/* Internal Class Implementation */
/************************************************************************/
static void _copyStyle(SvgStyleProperty* to, const SvgStyleProperty* from)
{
if (from == nullptr) return;
//Copy the properties of 'from' only if they were explicitly set (not the default ones).
if (from->curColorSet && !((int)to->flags & (int)SvgStyleFlags::Color)) {
to->color = from->color;
to->curColorSet = true;
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::Color);
}
//Fill
if (((int)from->fill.flags & (int)SvgFillFlags::Paint) && !((int)to->flags & (int)SvgStyleFlags::Fill)) {
to->fill.paint.color = from->fill.paint.color;
to->fill.paint.none = from->fill.paint.none;
to->fill.paint.curColor = from->fill.paint.curColor;
if (from->fill.paint.url) to->fill.paint.url = strdup(from->fill.paint.url);
to->fill.flags = (SvgFillFlags)((int)to->fill.flags | (int)SvgFillFlags::Paint);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::Fill);
}
if (((int)from->fill.flags & (int)SvgFillFlags::Opacity) && !((int)to->flags & (int)SvgStyleFlags::FillOpacity)) {
to->fill.opacity = from->fill.opacity;
to->fill.flags = (SvgFillFlags)((int)to->fill.flags | (int)SvgFillFlags::Opacity);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::FillOpacity);
}
if (((int)from->fill.flags & (int)SvgFillFlags::FillRule) && !((int)to->flags & (int)SvgStyleFlags::FillRule)) {
to->fill.fillRule = from->fill.fillRule;
to->fill.flags = (SvgFillFlags)((int)to->fill.flags | (int)SvgFillFlags::FillRule);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::FillRule);
}
//Stroke
if (((int)from->stroke.flags & (int)SvgStrokeFlags::Paint) && !((int)to->flags & (int)SvgStyleFlags::Stroke)) {
to->stroke.paint.color = from->stroke.paint.color;
to->stroke.paint.none = from->stroke.paint.none;
to->stroke.paint.curColor = from->stroke.paint.curColor;
if (from->stroke.paint.url) to->stroke.paint.url = strdup(from->stroke.paint.url);
to->stroke.flags = (SvgStrokeFlags)((int)to->stroke.flags | (int)SvgStrokeFlags::Paint);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::Stroke);
}
if (((int)from->stroke.flags & (int)SvgStrokeFlags::Opacity) && !((int)to->flags & (int)SvgStyleFlags::StrokeOpacity)) {
to->stroke.opacity = from->stroke.opacity;
to->stroke.flags = (SvgStrokeFlags)((int)to->stroke.flags | (int)SvgStrokeFlags::Opacity);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::StrokeOpacity);
}
if (((int)from->stroke.flags & (int)SvgStrokeFlags::Width) && !((int)to->flags & (int)SvgStyleFlags::StrokeWidth)) {
to->stroke.width = from->stroke.width;
to->stroke.flags = (SvgStrokeFlags)((int)to->stroke.flags | (int)SvgStrokeFlags::Width);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::StrokeWidth);
}
if (((int)from->stroke.flags & (int)SvgStrokeFlags::Dash) && !((int)to->flags & (int)SvgStyleFlags::StrokeDashArray)) {
if (from->stroke.dash.array.count > 0) {
to->stroke.dash.array.clear();
to->stroke.dash.array.reserve(from->stroke.dash.array.count);
for (uint32_t i = 0; i < from->stroke.dash.array.count; ++i) {
to->stroke.dash.array.push(from->stroke.dash.array.data[i]);
}
to->stroke.flags = (SvgStrokeFlags)((int)to->stroke.flags | (int)SvgStrokeFlags::Dash);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::StrokeDashArray);
}
}
if (((int)from->stroke.flags & (int)SvgStrokeFlags::Cap) && !((int)to->flags & (int)SvgStyleFlags::StrokeLineCap)) {
to->stroke.cap = from->stroke.cap;
to->stroke.flags = (SvgStrokeFlags)((int)to->stroke.flags | (int)SvgStrokeFlags::Cap);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::StrokeLineCap);
}
if (((int)from->stroke.flags & (int)SvgStrokeFlags::Join) && !((int)to->flags & (int)SvgStyleFlags::StrokeLineJoin)) {
to->stroke.join = from->stroke.join;
to->stroke.flags = (SvgStrokeFlags)((int)to->stroke.flags | (int)SvgStrokeFlags::Join);
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::StrokeLineJoin);
}
//Opacity
//TODO: it can be set to be 255 and shouldn't be changed by attribute 'opacity'
if (from->opacity < 255 && !((int)to->flags & (int)SvgStyleFlags::Opacity)) {
to->opacity = from->opacity;
to->flags = (SvgStyleFlags)((int)to->flags | (int)SvgStyleFlags::Opacity);
}
}
/************************************************************************/
/* External Class Implementation */
/************************************************************************/
void cssCopyStyleAttr(SvgNode* to, const SvgNode* from)
{
//Copy matrix attribute
if (from->transform && !((int)to->style->flags & (int)SvgStyleFlags::Transform)) {
to->transform = (Matrix*)malloc(sizeof(Matrix));
if (to->transform) {
*to->transform = *from->transform;
to->style->flags = (SvgStyleFlags)((int)to->style->flags | (int)SvgStyleFlags::Transform);
}
}
//Copy style attribute
_copyStyle(to->style, from->style);
if (from->style->clipPath.url) to->style->clipPath.url = strdup(from->style->clipPath.url);
if (from->style->mask.url) to->style->mask.url = strdup(from->style->mask.url);
}
SvgNode* cssFindStyleNode(const SvgNode* style, const char* title, SvgNodeType type)
{
if (!style) return nullptr;
auto child = style->child.data;
for (uint32_t i = 0; i < style->child.count; ++i, ++child) {
if ((*child)->type == type) {
if ((!title && !(*child)->id) || (title && (*child)->id && !strcmp((*child)->id, title))) return (*child);
}
}
return nullptr;
}
SvgNode* cssFindStyleNode(const SvgNode* style, const char* title)
{
if (!style) return nullptr;
auto child = style->child.data;
for (uint32_t i = 0; i < style->child.count; ++i, ++child) {
if ((*child)->type == SvgNodeType::CssStyle) {
if ((title && (*child)->id && !strcmp((*child)->id, title))) return (*child);
}
}
return nullptr;
}
void cssUpdateStyle(SvgNode* doc, SvgNode* style)
{
if (doc->child.count > 0) {
auto child = doc->child.data;
for (uint32_t i = 0; i < doc->child.count; ++i, ++child) {
if (auto cssNode = cssFindStyleNode(style, nullptr, (*child)->type)) {
cssCopyStyleAttr(*child, cssNode);
}
if (auto cssNode = cssFindStyleNode(style, nullptr)) {
cssCopyStyleAttr(*child, cssNode);
}
cssUpdateStyle(*child, style);
}
}
}
void cssApplyStyleToPostponeds(Array<SvgNodeIdPair>& postponeds, SvgNode* style)
{
for (uint32_t i = 0; i < postponeds.count; ++i) {
auto nodeIdPair = postponeds.data[i];
//css styling: tag.name has higher priority than .name
if (auto cssNode = cssFindStyleNode(style, nodeIdPair.id, nodeIdPair.node->type)) {
cssCopyStyleAttr(nodeIdPair.node, cssNode);
}
if (auto cssNode = cssFindStyleNode(style, nodeIdPair.id)) {
cssCopyStyleAttr(nodeIdPair.node, cssNode);
}
}
}
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