Catcrafts/Crafter.Graphics
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This commit is contained in:
Jorijn van der Graaf 2026-05-03 02:45:38 +02:00
commit c054f1e0b3
9 changed files with 699 additions and 5 deletions
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31
interfaces/Crafter.Graphics-UIComponents.cppm
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@ -38,8 +38,10 @@ import :FontAtlas;
// function body into your code and modify it. There is no override hook.
export namespace Crafter {
// Aggregate for the two item buffers + the optional text-shaping deps.
// Build one per frame in onBuild and pass it to component calls.
// Aggregate for the standard item buffers + the optional text-shaping
// deps. Build one per frame in onBuild and pass it to component calls.
// Any pointer left null causes the corresponding component to be a no-op
// (so a frame that doesn't draw images can leave `images` unset).
struct UIBuffer {
QuadItem* quads = nullptr;
std::uint32_t* quadCount = nullptr;
@ -49,6 +51,10 @@ export namespace Crafter {
std::uint32_t* glyphCount = nullptr;
std::uint32_t glyphCap = 0;
ImageItem* images = nullptr;
std::uint32_t* imageCount = nullptr;
std::uint32_t imageCap = 0;
FontAtlas* atlas = nullptr; // for text-emitting components
UIRenderer* renderer = nullptr; // for ShapeText
};
@ -92,6 +98,9 @@ export namespace Crafter {
float cornerRadius = 0;
};
// Where the X coordinate sits relative to the emitted glyph run.
enum class TextAlign : std::uint8_t { Left, Center, Right };
// ─── component functions ───────────────────────────────────────────
// Background quad (color depends on state) + centered label glyphs.
@ -112,4 +121,22 @@ export namespace Crafter {
// Background quad + a filled quad clipped to t01 of the inner width.
void DrawProgressBar(UIBuffer& buf, Rect r, float t01,
const ProgressColors& c);
// Single-line text emit. `(x, baselineY)` is the start position; horizontal
// alignment shifts the run after shaping. Returns the advance width that
// was written. No line-wrap, no kerning — same shaping rules as
// UIRenderer::ShapeText (which this calls).
float DrawText(UIBuffer& buf, std::string_view text,
float x, float baselineY,
Font& font, float fontSize,
std::array<float, 4> color,
TextAlign align = TextAlign::Left);
// Sampled image quad. The texture and sampler must already have heap
// slots (UIRenderer::RegisterImage / RegisterSampler). `uv` is
// {u0, v0, u1, v1} into the source texture; defaults to the full image.
void DrawImage(UIBuffer& buf, Rect r,
std::uint32_t textureSlot, std::uint32_t samplerSlot,
std::array<float, 4> tint = {1, 1, 1, 1},
std::array<float, 4> uv = {0, 0, 1, 1});
}