82 lines
1.7 KiB
Plaintext
82 lines
1.7 KiB
Plaintext
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module ugui;
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import std::io;
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fn void! Ctx.text_unbounded(&ctx, String label, String text)
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{
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Id id = label.hash();
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Elem *parent = ctx.get_parent()!;
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Elem *c_elem = ctx.get_elem(id)!;
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// add it to the tree
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ctx.tree.add(id, ctx.active_div)!;
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// 1. Fill the element fields
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// this resets the flags
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c_elem.type = ETYPE_TEXT;
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bool update_atlas;
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// if the element is new or the parent was updated then redo layout
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if (c_elem.flags.is_new || parent.flags.updated) {
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Rect text_size;
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Glyph* gp;
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// FIXME: newlines are not counted
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foreach (c: text) {
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Codepoint cp = (Codepoint)c;
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bool n;
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gp = ctx.font.get_glyph(cp, &n)!;
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text_size.w += gp.w + gp.ox + gp.adv;
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text_size.h += gp.h + gp.oy;
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if (n) { update_atlas = true; }
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}
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// 2. Layout
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c_elem.bounds = ctx.position_element(parent, text_size, true);
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// 3. Fill the button specific fields
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c_elem.text.str = text;
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}
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if (update_atlas) {
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// FIXME: atlas here is hardcoded, look at the todo in ugui_data
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Cmd up = {
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.type = CMD_UPDATE_ATLAS,
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.update_atlas = {
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.raw_buffer = ctx.font.atlas[0].buffer,
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.width = ctx.font.atlas[0].width,
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.height = ctx.font.atlas[0].height,
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},
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};
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ctx.cmd_queue.enqueue(&up)!;
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}
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Point orig = {
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.x = c_elem.bounds.x,
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.y = c_elem.bounds.y,
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};
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foreach (c: text) {
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Glyph* gp;
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Codepoint cp = (Codepoint)c;
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gp = ctx.font.get_glyph(cp)!;
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Cmd cmd = {
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.type = CMD_SPRITE,
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.sprite.rect = {
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.x = orig.x + gp.ox,
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.y = orig.y + gp.oy,
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.w = gp.w,
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.h = gp.h,
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},
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.sprite.texture_rect = {
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.x = gp.u,
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.y = gp.v,
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.w = gp.w,
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.h = gp.h,
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},
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};
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orig.x += gp.w + gp.ox;
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ctx.cmd_queue.enqueue(&cmd)!;
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}
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}
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