128 lines
2.6 KiB
C
128 lines
2.6 KiB
C
/**
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* Copyright (c) 2026 Dominic Masters
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*
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* This software is released under the MIT License.
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* https://opensource.org/licenses/MIT
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*/
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#include "text.h"
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#include "assert/assert.h"
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#include "util/memory.h"
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#include "display/spritebatch/spritebatch.h"
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#include "asset/asset.h"
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texture_t DEFAULT_FONT_TEXTURE;
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tileset_t DEFAULT_FONT_TILESET;
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errorret_t textInit(void) {
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// errorChain(assetLoad("ui/minogram.dpt", &DEFAULT_FONT_TEXTURE));
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// errorChain(assetLoad("ui/minogram.dtf", &DEFAULT_FONT_TILESET));
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errorOk();
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}
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errorret_t textDispose(void) {
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// errorChain(textureDispose(&DEFAULT_FONT_TEXTURE));
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errorOk();
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}
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errorret_t textDrawChar(
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const float_t x,
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const float_t y,
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const char_t c,
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const color_t color,
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const tileset_t *tileset,
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texture_t *texture
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) {
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int32_t tileIndex = (int32_t)(c) - TEXT_CHAR_START;
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if(tileIndex < 0 || tileIndex >= tileset->tileCount) {
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tileIndex = ((int32_t)'@') - TEXT_CHAR_START;
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}
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assertTrue(
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tileIndex >= 0 && tileIndex <= tileset->tileCount,
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"Character is out of bounds for font tiles"
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);
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vec4 uv;
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tilesetTileGetUV(tileset, tileIndex, uv);
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errorChain(spriteBatchPush(
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texture,
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x, y,
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x + tileset->tileWidth,
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y + tileset->tileHeight,
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color,
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uv[0], uv[1], uv[2], uv[3]
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));
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errorOk();
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}
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errorret_t textDraw(
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const float_t x,
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const float_t y,
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const char_t *text,
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const color_t color,
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const tileset_t *tileset,
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texture_t *texture
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) {
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assertNotNull(text, "Text cannot be NULL");
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float_t posX = x;
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float_t posY = y;
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char_t c;
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int32_t i = 0;
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while((c = text[i++]) != '\0') {
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if(c == '\n') {
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posX = x;
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posY += tileset->tileHeight;
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continue;
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}
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if(c == ' ') {
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posX += tileset->tileWidth;
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continue;
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}
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errorChain(textDrawChar(posX, posY, c, color, tileset, texture));
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posX += tileset->tileWidth;
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}
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errorOk();
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}
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void textMeasure(
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const char_t *text,
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const tileset_t *tileset,
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int32_t *outWidth,
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int32_t *outHeight
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) {
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assertNotNull(text, "Text cannot be NULL");
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assertNotNull(outWidth, "Output width pointer cannot be NULL");
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assertNotNull(outHeight, "Output height pointer cannot be NULL");
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int32_t width = 0;
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int32_t height = tileset->tileHeight;
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int32_t lineWidth = 0;
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char_t c;
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int32_t i = 0;
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while((c = text[i++]) != '\0') {
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if(c == '\n') {
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if(lineWidth > width) {
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width = lineWidth;
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}
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lineWidth = 0;
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height += tileset->tileHeight;
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continue;
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}
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lineWidth += tileset->tileWidth;
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}
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if(lineWidth > width) {
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width = lineWidth;
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}
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*outWidth = width;
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*outHeight = height;
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} |