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Adds CLAY_TEXT_ALIGN_SHRINK option to Clay_TextAlignment which tells the TEXT command producing code it is allowed to pass a boundingBox that is horizontally smaller than the result of the MeasureText call for that string. The Renderer is then able to choose how it wants to fit a piece of text in a smaller space (often this involves removing some number of characters and replacing them with "..." characters)

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Taylor Robbins (Piggybank Studios) 2025-03-05 13:02:15 -08:00
parent 5009146c65
commit f969c8f5b4
1 changed files with 13 additions and 2 deletions
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15
clay.h
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@ -353,6 +353,8 @@ typedef CLAY_PACKED_ENUM {
CLAY_TEXT_ALIGN_CENTER, CLAY_TEXT_ALIGN_CENTER,
// Horizontally aligns wrapped lines of text to the right hand side of their bounding box. // Horizontally aligns wrapped lines of text to the right hand side of their bounding box.
CLAY_TEXT_ALIGN_RIGHT, CLAY_TEXT_ALIGN_RIGHT,
// The boundingBox passed to the TEXT render command may be smaller than the measured text size. The renderer must then decide how to shorten the text to make it fit
CLAY_TEXT_ALIGN_SHRINK,
} Clay_TextAlignment; } Clay_TextAlignment;
// Controls various functionality related to text elements. // Controls various functionality related to text elements.
@ -2676,14 +2678,23 @@ void Clay__CalculateFinalLayout(void) {
continue; continue;
} }
float offset = (currentElementBoundingBox.width - wrappedLine->dimensions.width); float offset = (currentElementBoundingBox.width - wrappedLine->dimensions.width);
if (textElementConfig->textAlignment == CLAY_TEXT_ALIGN_LEFT) { if (textElementConfig->textAlignment == CLAY_TEXT_ALIGN_LEFT || textElementConfig->textAlignment == CLAY_TEXT_ALIGN_SHRINK) {
offset = 0; offset = 0;
} }
if (textElementConfig->textAlignment == CLAY_TEXT_ALIGN_CENTER) { if (textElementConfig->textAlignment == CLAY_TEXT_ALIGN_CENTER) {
offset /= 2; offset /= 2;
} }
Clay_BoundingBox textBoundingBox = {
currentElementBoundingBox.x + offset,
currentElementBoundingBox.y + yPosition,
wrappedLine->dimensions.width,
wrappedLine->dimensions.height
};
if (textElementConfig->textAlignment == CLAY_TEXT_ALIGN_SHRINK && boundingBox.width > currentElementBoundingBox.width) {
boundingBox.width = currentElementBoundingBox.width;
}
Clay__AddRenderCommand(CLAY__INIT(Clay_RenderCommand) { Clay__AddRenderCommand(CLAY__INIT(Clay_RenderCommand) {
.boundingBox = { currentElementBoundingBox.x + offset, currentElementBoundingBox.y + yPosition, wrappedLine->dimensions.width, wrappedLine->dimensions.height }, .boundingBox = textBoundingBox,
.renderData = { .text = { .renderData = { .text = {
.stringContents = CLAY__INIT(Clay_StringSlice) { .length = wrappedLine->line.length, .chars = wrappedLine->line.chars, .baseChars = currentElement->childrenOrTextContent.textElementData->text.chars }, .stringContents = CLAY__INIT(Clay_StringSlice) { .length = wrappedLine->line.length, .chars = wrappedLine->line.chars, .baseChars = currentElement->childrenOrTextContent.textElementData->text.chars },
.textColor = textElementConfig->textColor, .textColor = textElementConfig->textColor,