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Added really unfinished text decoration support

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This commit is contained in:
Dominic Masters
2023-07-15 23:42:24 -07:00
parent 370ebaf992
commit 0a103c9283
4 changed files with 85 additions and 7 deletions
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75
src/dawn/scene/components/ui/text/UILabel.cpp
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@ -35,11 +35,12 @@ std::vector<struct ShaderPassItem> UILabel::getUIRenderPasses() {
auto canvas = this->getCanvas();
auto shader = getGame()->renderManager.fontShader;
glm::mat4 model = transform->getWorldTransform();
// Translate
glm::mat4 model = transform->getWorldTransform();
model = glm::translate(model, glm::vec3(this->textOffset, 0.0f));
struct ShaderPassItem item;
item.shader = shader;
item.mesh = &this->mesh;
item.matrixValues[shader->paramModel] = model;
@ -76,10 +77,20 @@ std::vector<struct ShaderPassItem> UILabel::getUIRenderPasses() {
item.textureSlots[it->second] = &it->first->texture;
item.textureValues[param] = it->second;
++it;
}
return { item };
std::vector<struct ShaderPassItem> items;
items.push_back(item);
if(this->hasDecorations) {
struct ShaderPassItem itemDecorations = item;
itemDecorations.mesh = &this->meshDecorations;
items.push_back(itemDecorations);
}
return items;
}
float_t UILabel::getContentWidth() {
@ -114,6 +125,7 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
glm::vec2 position(0, 0);
int32_t partIndex = 0;
std::vector<std::pair<glm::vec4, glm::vec4>> vertices;
std::vector<std::pair<glm::vec4, glm::vec4>> decorations;
struct FontShaderBufferData fontData;
quadCountTotal = 0;
quadCount = -1;
@ -124,6 +136,7 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
// Reset
lines.clear();
textureMap.clear();
hasDecorations = false;
// Determine font dimensions.
auto itText = newTexts.begin();
@ -188,6 +201,7 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
glm::vec4 uvs(0, 0, 1, 1);
glm::vec4 vert(0, 0, 0, 0);
vertices.push_back(std::make_pair(vert, uvs));
decorations.push_back(std::make_pair(vert, uvs));
fontData.quadMappings[quadCountTotal].value = partIndex;
quadCountTotal++;
@ -256,7 +270,10 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
// Basically this rewinds everything we've done to the last space char,
// changes it to a newline, and then moves the position along.
int32_t diff = i - lastSpaceCharacter;
for(int32_t k = 0; k < diff; k++) vertices.pop_back();
for(int32_t k = 0; k < diff; k++) {
vertices.pop_back();
decorations.pop_back();
}
text.text[lastSpaceCharacter] = '\n';
i = lastSpaceCharacter;
lastSpaceCharacter = -1;
@ -279,9 +296,27 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
vert.y = position.y + charInfo.bitmapPosition.y;
vert.w = vert.x + charInfo.bitmapSize.x;
vert.z = vert.y + charInfo.bitmapSize.y;
vertices.push_back(std::make_pair(vert, uvs));
// Decorations
if(text.style.decorations != 0) {
auto charInfo2 = realText.texture->getCharacterData('-');
uvs.y = charInfo2.textureY / wh.y;
uvs.w = charInfo2.bitmapSize.x / wh.x;
uvs.z = uvs.y + (charInfo2.bitmapSize.y / wh.y);
vert.x = position.x + charInfo2.bitmapPosition.x;
vert.y = position.y + charInfo2.bitmapPosition.y;
vert.w = vert.x + charInfo.advanceX;
vert.z = vert.y + charInfo2.bitmapSize.y;
decorations.push_back(std::make_pair(vert, uvs));
hasDecorations = true;
// TODO: Finish
} else {
uvs = glm::vec4(0, 0, 1, 1);
vert = glm::vec4(0, 0, 0, 0);
decorations.push_back(std::make_pair(vert, uvs));
}
// Move the current position along.
position.x += charInfo.advanceX;
position.y += charInfo.advanceY;
@ -320,9 +355,18 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
QUAD_VERTICE_COUNT * vertices.size(),
QUAD_INDICE_COUNT * vertices.size()
);
if(hasDecorations) {
assertTrue(vertices.size() == decorations.size());
this->meshDecorations.createBuffers(
QUAD_VERTICE_COUNT * decorations.size(),
QUAD_INDICE_COUNT * decorations.size()
);
}
}
// Now buffer the quads.
// Now buffer the quads. Can be optimized probably.
int32_t j = 0;
auto itQuad = vertices.begin();
while(itQuad != vertices.end()) {
@ -335,10 +379,29 @@ void UILabel::rebufferQuads(const std::vector<struct UILabelText> newTexts) {
0.0f,
j * QUAD_VERTICE_COUNT, j * QUAD_INDICE_COUNT
);
j++;
++j;
++itQuad;
}
// Now buffer decorations
if(hasDecorations) {
j = 0;
itQuad = decorations.begin();
while(itQuad != decorations.end()) {
auto vert = itQuad->first;
auto uvs = itQuad->second;
QuadMesh::bufferQuadMeshWithZ(&this->meshDecorations,
glm::vec2(vert.x, vert.y), glm::vec2(uvs.x, uvs.y),
glm::vec2(vert.w, vert.z), glm::vec2(uvs.w, uvs.z),
0.0f,
j * QUAD_VERTICE_COUNT, j * QUAD_INDICE_COUNT
);
++j;
++itQuad;
}
}
// Buffer data
shaderBuffer.buffer(&fontData);

3
src/dawn/scene/components/ui/text/UILabel.hpp
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@ -15,6 +15,7 @@ namespace Dawn {
struct UILabelStyle {
struct Color color = COLOR_WHITE;
flag_t style = 0;
flag_t decorations = 0;
uint32_t size = 16;
TrueTypeAsset *font = nullptr;
};
@ -45,9 +46,11 @@ namespace Dawn {
class UILabel : public UIComponentRenderable {
private:
Mesh mesh;
Mesh meshDecorations;
FontShaderBuffer shaderBuffer;
std::map<TrueTypeFaceTexture*, int32_t> textureMap;
bool_t ignoreAlignmentUpdate = false;
bool_t hasDecorations = false;
public:
int32_t quadStart = 0;

9
src/dawn/scene/components/ui/text/UIRichTextLabel.cpp
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@ -63,6 +63,15 @@ void UIRichTextLabel::onStart() {
style.style = current.style;
}
if(node->attributes.contains("decoration")) {
std::string s = node->attributes["decoration"];
style.decorations = 0;
if(s.find("underline") != std::string::npos) style.decorations |= TRUE_TYPE_DECORATION_UNDERLINE;
if(s.find("strikethrough") != std::string::npos) style.decorations |= TRUE_TYPE_DECORATION_STRIKETHROUGH;
} else {
style.decorations = current.decorations;
}
if(node->attributes.contains("color")) {
style.color = Color::fromString(node->attributes["color"]);
} else {

5
src/dawnshared/display/font/truetype/TrueTypeShared.hpp
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@ -10,4 +10,7 @@
#define TRUE_TYPE_CHAR_END 0xFF
#define TRUE_TYPE_VARIANT_BOLD FLAG_DEFINE(0)
#define TRUE_TYPE_VARIANT_ITALICS FLAG_DEFINE(1)
#define TRUE_TYPE_VARIANT_ITALICS FLAG_DEFINE(1)
#define TRUE_TYPE_DECORATION_STRIKETHROUGH FLAG_DEFINE(0)
#define TRUE_TYPE_DECORATION_UNDERLINE FLAG_DEFINE(1)