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Add initial font metrics and equation rendering.

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This commit is contained in:
jmsgrogan 2023-01-25 16:51:36 +00:00
parent c2027801be
commit 5ddd54dd6d
24 changed files with 868 additions and 63 deletions
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93
src/rendering/visual_elements/nodes/TextNode.cpp
View file

@ -9,6 +9,8 @@
#include "SceneInfo.h"
#include "SceneText.h"
#include "SceneModel.h"
#include "Rectangle.h"
#include "Color.h"
@ -18,6 +20,8 @@ TextNode::TextNode(const std::string& content, const Transform& transform)
: MaterialNode(transform)
{
mTextData.mContent= content;
setFillColor(Color(0, 0, 0));
setHasStrokeColor(false);
}
TextNode::~TextNode()
@ -92,15 +96,39 @@ SceneItem* TextNode::getSceneItem(std::size_t idx) const
{
return mTextItem.get();
}
else
else if (idx == 1)
{
return 0;
if (mNodeBounds)
{
return mNodeBounds.get();
}
else
{
return mTextBounds.get();
}
}
else if (idx == 2)
{
if (mTextBounds)
{
return mTextBounds.get();
}
}
return nullptr;
}
std::size_t TextNode::getNumSceneItems() const
{
return 1;
auto count = 1;
if (mNodeBounds)
{
count++;
}
if (mTextBounds)
{
count++;
}
return count;
}
void TextNode::updateLines(FontsManager* fontsManager)
@ -145,12 +173,58 @@ void TextNode::updateLines(FontsManager* fontsManager)
}
}
void TextNode::setRenderNodeBounds(bool render)
{
mRenderNodeBounds = render;
}
void TextNode::setRenderTextBounds(bool render)
{
mRenderTextBounds = render;
}
void TextNode::update(SceneInfo* sceneInfo)
{
if (!mTextItem)
{
mTextItem = std::make_unique<SceneText>();
mTextItem->setName(mName + "_SceneText");
mContentWidth = sceneInfo->mFontsManager->getFontEngine()->getHorizontalAdvance(mTextData.mFont, mTextData.mContent);
mContentHeight = mTextData.mFont.getSize();
if (mWidth == 1.0 && mHeight == 1.0)
{
mTextItem->setTextWidth(mContentWidth);
mTextItem->setTextHeight(mContentHeight);
}
else
{
mTextItem->setTextWidth(mWidth);
mTextItem->setTextHeight(mHeight);
}
if (mRenderNodeBounds)
{
auto rect = std::make_unique<ntk::Rectangle>(Point(0.0, 0.0), mWidth, mHeight);
mNodeBounds = std::make_unique<SceneModel>();
mNodeBounds->updateGeometry(std::move(rect));
BasicMaterial bounds_material;
bounds_material.setStrokeColor(Color(255, 0, 0));
mNodeBounds->updateSolidMaterial(bounds_material);
}
if (mRenderTextBounds)
{
auto rect = std::make_unique<ntk::Rectangle>(Point(0.0, 0.0), mContentWidth, mContentHeight);
mTextBounds = std::make_unique<SceneModel>();
mTextBounds->updateGeometry(std::move(rect));
BasicMaterial bounds_material;
bounds_material.setStrokeColor(Color(0, 255, 0));
mTextBounds->updateSolidMaterial(bounds_material);
}
}
if (mTransformIsDirty || mContentIsDirty)
@ -167,9 +241,16 @@ void TextNode::update(SceneInfo* sceneInfo)
if (mTransformIsDirty)
{
//mTextItem->updateTransform({mLocation});
mTextItem->setTextWidth(mWidth);
mTextItem->setTextHeight(mHeight);
if (mWidth == 1.0 && mHeight == 1.0)
{
mTextItem->setTextWidth(mContentWidth);
mTextItem->setTextHeight(mContentHeight);
}
else
{
mTextItem->setTextWidth(mWidth);
mTextItem->setTextHeight(mHeight);
}
mTransformIsDirty = false;
}

13
src/rendering/visual_elements/nodes/TextNode.h
View file

@ -11,6 +11,7 @@
#include <string>
class FontsManager;
class SceneModel;
class TextNode : public MaterialNode
{
@ -34,9 +35,11 @@ public:
void setHeight(double height);
void setContent(const std::string& content);
void setFont(const FontItem& font);
void setRenderNodeBounds(bool render);
void setRenderTextBounds(bool render);
void update(SceneInfo* sceneInfo) override;
private:
@ -49,7 +52,15 @@ private:
double mWidth{1};
double mHeight{1};
double mContentWidth{ 1 };
double mContentHeight{ 1 };
std::unique_ptr<SceneText> mTextItem;
bool mRenderNodeBounds{ false };
bool mRenderTextBounds{ false };
std::unique_ptr<SceneModel> mNodeBounds;
std::unique_ptr<SceneModel> mTextBounds;
};
using TextNodetr = std::unique_ptr<TextNode>;