622 lines
15 KiB
C
622 lines
15 KiB
C
////////////////////////////////////////////////////////////
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//~ Key types
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#define UI_NilKey ((UI_Key) { 0 })
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#define UI_RootKey ((UI_Key) { 0xaaaaaaaaaaaaaaaaUll })
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Struct(UI_Key)
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{
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u64 v;
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};
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////////////////////////////////////////////////////////////
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//~ Size types
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Enum(UI_SizeKind)
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{
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UI_SizeKind_Pixel, // Exact size
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UI_SizeKind_Grow, // Size as percent of parent size
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UI_SizeKind_Shrink, // Size of children + padding in pixels
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};
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Struct(UI_Size)
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{
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UI_SizeKind kind;
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f32 v;
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f32 strictness;
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};
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////////////////////////////////////////////////////////////
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//~ Rounding types
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Enum(UI_RoundKind)
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{
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UI_RoundKind_Pixel, // Exact radius
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UI_RoundKind_Grow, // Radius as percent of size
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};
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Struct(UI_Round)
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{
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UI_RoundKind kind;
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f32 v;
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};
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////////////////////////////////////////////////////////////
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//~ Region types
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Enum(UI_Region)
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{
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UI_Region_TopLeft,
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UI_Region_Top,
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UI_Region_TopRight,
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UI_Region_Left,
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UI_Region_Center,
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UI_Region_Right,
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UI_Region_BottomLeft,
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UI_Region_Bottom,
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UI_Region_BottomRight,
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};
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Enum(UI_AxisRegion)
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{
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UI_AxisRegion_Start,
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UI_AxisRegion_Center,
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UI_AxisRegion_End,
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};
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Union(UI_RegionPair)
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{
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struct { UI_AxisRegion x, y; };
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UI_AxisRegion v[2];
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};
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////////////////////////////////////////////////////////////
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//~ Checkpoint types
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Struct(UI_Checkpoint)
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{
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u64 v;
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};
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////////////////////////////////////////////////////////////
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//~ Box flags
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Enum(UI_BoxFlag)
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{
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UI_BoxFlag_None = 0,
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UI_BoxFlag_DrawText = (1 << 0),
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UI_BoxFlag_CaptureMouse = (1 << 1),
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UI_BoxFlag_CaptureThroughChildren = (1 << 2),
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UI_BoxFlag_DontTruncateText = (1 << 3),
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UI_BoxFlag_Floating = (1 << 4),
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UI_BoxFlag_DontClampFloatingX = (1 << 5),
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UI_BoxFlag_DontClampFloatingY = (1 << 6),
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UI_BoxFlag_Scissor = (1 << 7),
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};
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////////////////////////////////////////////////////////////
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//~ Debug breakpoint flags
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Enum(UI_DebugBreakFlag)
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{
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UI_DebugBreakFlag_None = 0,
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UI_DebugBreakFlag_CheckCursorHover = (1 << 0),
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UI_DebugBreakFlag_BuildFeedback = (1 << 1),
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UI_DebugBreakFlag_PrepLayout = (1 << 2),
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UI_DebugBreakFlag_IndependentSolve = (1 << 3),
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UI_DebugBreakFlag_UpwardsDependentSolveLayoutAxis = (1 << 4),
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UI_DebugBreakFlag_DownwardsDependentSolve = (1 << 5),
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UI_DebugBreakFlag_UpwardsDependentSolveNonLayoutAxis = (1 << 6),
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UI_DebugBreakFlag_SolveViolations = (1 << 7),
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UI_DebugBreakFlag_FinalSolve = (1 << 8),
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UI_DebugBreakFlag_BuildGpuData = (1 << 9),
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UI_DebugBreakFlag_All = 0xFFFFFFFF
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};
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////////////////////////////////////////////////////////////
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//~ Style types
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#define UI_StyleKindsXList(X) \
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X(OmitFlags, UI_BoxFlag) \
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X(OrFlags, UI_BoxFlag) \
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X(Flags, UI_BoxFlag) \
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X(DebugBreakFlags, UI_DebugBreakFlag) \
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X(Parent, UI_Key) \
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X(Tag, u64) \
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X(ChildLayoutAxis, Axis) \
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X(ChildAlignment, UI_Region) \
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X(Width, UI_Size) \
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X(Height, UI_Size) \
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X(Scale, Vec2) \
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X(BackgroundColor, Vec4) \
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X(BorderColor, Vec4) \
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X(DebugColor, Vec4) \
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X(InvisibleDebugColor, Vec4) \
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X(Tint, Vec4) \
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X(Opacity, f32) \
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X(BorderSize, f32) \
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X(Anchor, UI_Region) \
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X(FloatingPos, Vec2) \
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X(Rounding, UI_Round) \
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X(Font, GC_FontKey) \
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X(FontSize, f32) \
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X(TextColor, Vec4) \
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X(Text, String) \
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X(Icon, UI_Icon) \
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X(SpriteSheet, SPR_SheetKey) \
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X(SpriteSpan, SPR_SpanKey) \
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X(SpriteSeq, i64) \
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X(BackgroundTexture, G_TextureRef) \
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X(BackgroundTextureSliceUv, Rng2) \
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X(Misc, f64) \
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/* --------------------------------------------- */ \
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/* --------------- Virtual styles -------------- */ \
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/* --------------------------------------------- */ \
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X(BeginVirtualStyles_, i8) \
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/* --------------------------------------------- */ \
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X(AxisSize, UI_Size) \
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/* ------------------------------------------------- */
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Enum(UI_StyleKind)
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{
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#define X(name, type) CAT(UI_StyleKind_,name),
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UI_StyleKind_None,
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UI_StyleKindsXList(X)
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UI_StyleKind_COUNT,
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#undef X
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};
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Struct(UI_Style)
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{
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UI_StyleKind kind;
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// Union of all style fields
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union
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{
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#define X(name, type) type name;
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UI_StyleKindsXList(X)
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#undef X
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};
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};
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Struct(UI_StyleDesc)
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{
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Axis axis;
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UI_Style style;
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// Push
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b32 pop_when_used;
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b32 override;
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// Pop
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b32 force_pop;
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b32 use;
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};
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Struct(UI_StyleNode)
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{
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UI_StyleNode *next;
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UI_Style style;
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UI_Checkpoint checkpoint;
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b32 pop_when_used;
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b32 override;
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};
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Struct(UI_Stack)
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{
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UI_StyleNode *style_tops[UI_StyleKind_COUNT];
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UI_Checkpoint top_checkpoint;
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};
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////////////////////////////////////////////////////////////
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//~ Input types
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Struct(UI_ButtonState)
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{
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b32 held; // Persistent
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i32 downs; // Mouse button down events over box causing activation
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i32 ups; // Mouse button up events while box is active
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i32 presses; // Mouse button events while box is active and hovered
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};
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Struct(UI_InputState)
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{
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UI_ButtonState buttons[Button_COUNT];
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};
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////////////////////////////////////////////////////////////
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//~ Feedback types
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Struct(UI_Feedback)
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{
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Rng2 screen_rect;
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Vec2 screen_anchor;
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b32 active_absolute;
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b32 hot_absolute;
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b32 exists_absolute;
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f32 active_smooth;
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f32 hot_smooth;
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f32 exists_smooth;
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f64 misc_smooth;
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};
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////////////////////////////////////////////////////////////
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//~ Command types
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Enum(UI_CmdKind)
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{
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UI_CmdKind_None,
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UI_CmdKind_BuildBox,
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UI_CmdKind_SetRawTexture,
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};
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Struct(UI_BoxDesc)
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{
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UI_BoxFlag flags;
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UI_DebugBreakFlag debug_break_flags;
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UI_Key key;
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UI_Key parent;
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b32 is_transient;
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UI_Size pref_semantic_dims[Axis_COUNTXY];
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UI_Round rounding;
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Vec4 background_color;
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Vec4 border_color;
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Vec4 debug_color;
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Vec4 invisible_debug_color;
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Vec4 tint;
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f32 opacity;
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f32 border_size;
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Vec2 scale;
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Vec4 text_color;
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String text;
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UI_Icon icon;
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GC_FontKey font;
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f32 font_size;
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Axis child_layout_axis;
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UI_Region child_alignment;
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UI_Region anchor;
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Vec2 floating_pos;
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SPR_SheetKey sprite_sheet;
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SPR_SpanKey sprite_span;
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i64 sprite_seq;
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f64 misc;
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};
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Struct(UI_Cmd)
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{
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UI_CmdKind kind;
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union
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{
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UI_BoxDesc box;
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struct
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{
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UI_Key key;
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G_TextureRef tex;
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Rng2 slice_uv;
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} set_raw_texture;
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};
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};
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Struct(UI_CmdNode)
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{
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UI_CmdNode *next;
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UI_Cmd cmd;
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};
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////////////////////////////////////////////////////////////
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//~ Box types
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Struct(UI_Box)
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{
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UI_Key key;
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//- Persistent data
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UI_Box *next_in_bin;
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UI_Box *prev_in_bin;
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i64 last_build_tick;
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i64 old_gen;
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i64 gen;
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//- Tree links
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UI_Box *parent;
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UI_Box *first;
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UI_Box *last;
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UI_Box *next;
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UI_Box *prev;
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u64 count;
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//- Cmd data
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UI_BoxDesc desc;
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G_TextureRef raw_texture;
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Rng2 raw_texture_slice_uv;
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GC_Run glyph_run;
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SPR_Sprite sprite;
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//- Pre-layout data
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u64 pre_index;
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u64 post_index;
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//- Layout data
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f32 solved_opacity;
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Vec2 solved_scale;
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Rng2 solved_scissor;
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Vec2 final_children_size_accum;
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Vec2 solved_dims;
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f32 cursor;
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//- Layout results
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Rng2 screen_rect;
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Vec2 screen_anchor;
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f32 rounding_tl;
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f32 rounding_tr;
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f32 rounding_br;
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f32 rounding_bl;
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//- Feedback
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b32 mouse_hovered;
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b32 mouse_captured;
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UI_Feedback feedback;
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UI_Feedback drag_feedback;
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};
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Struct(UI_BoxBin)
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{
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UI_Box *first;
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UI_Box *last;
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};
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////////////////////////////////////////////////////////////
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//~ Iterator types
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Struct(UI_BoxIterDfsNode)
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{
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UI_BoxIterDfsNode *next;
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UI_Box *box;
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b32 visited;
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};
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Struct(UI_BoxIter)
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{
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UI_BoxIterDfsNode *first;
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UI_BoxIterDfsNode *first_free;
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UI_BoxIterDfsNode *last_free;
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};
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Struct(UI_BoxIterResult)
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{
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UI_Box *box;
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b32 pre;
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};
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////////////////////////////////////////////////////////////
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//~ State types
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Enum(UI_FrameFlag)
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{
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UI_FrameFlag_None = 0,
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UI_FrameFlag_Debug = (1 << 0),
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};
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Struct(UI_Frame)
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{
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Arena *arena;
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Arena *rects_arena;
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WND_Frame window_frame;
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// Time
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i64 tick;
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i64 time_ns;
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i64 dt_ns;
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f32 dt;
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// Input
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Vec2 cursor_pos;
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Vec2 drag_cursor_pos;
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UI_InputState input;
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UI_InputState drag_input;
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UI_Key top_hovered_box;
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UI_Key top_hot_box;
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UI_Key top_active_box;
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// Cmds
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UI_FrameFlag frame_flags;
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UI_CmdNode *first_cmd_node;
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UI_CmdNode *last_cmd_node;
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u64 cmds_count;
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// Style stack
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UI_Stack *top_stack;
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UI_StyleNode *first_free_style_node;
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// Layout
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UI_Box **boxes_pre;
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UI_Box **boxes_post;
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};
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Struct(UI_Ctx)
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{
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u64 boxes_count;
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Arena *box_arena;
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UI_Box *root_box;
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UI_BoxBin box_bins[Kibi(256)];
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UI_Box *first_free_box;
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RandState rand;
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G_ArenaHandle gpu_frame_arena;
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G_CommandListHandle cl;
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i64 cur_frame_tick;
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UI_Frame frames[2];
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};
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extern UI_Ctx UI;
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////////////////////////////////////////////////////////////
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//~ Key helpers
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b32 UI_MatchKey(UI_Key a, UI_Key b);
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b32 UI_IsKeyNil(UI_Key key);
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UI_Key UI_KeyFromString(String str);
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UI_Key UI_KeyF_(String fmt, ...);
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#define UI_KeyF(fmt_cstr, ...) UI_KeyF_(StringFromCstrNoLimit(fmt_cstr), __VA_ARGS__, FmtEnd)
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UI_Key UI_RandKey(void);
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UI_Box *UI_BoxFromKey(UI_Key key);
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////////////////////////////////////////////////////////////
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//~ Region helpers
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UI_Region UI_RegionFromPair(UI_RegionPair pair);
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UI_RegionPair UI_PairFromRegion(UI_Region region);
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////////////////////////////////////////////////////////////
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//~ Iteration helpers
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UI_BoxIterResult UI_FirstBox(Arena *arena, UI_BoxIter *iter, UI_Key start_key);
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UI_BoxIterResult UI_NextBox(Arena *arena, UI_BoxIter *iter);
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////////////////////////////////////////////////////////////
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//~ String helpers
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String UI_StringF_(String fmt, ...);
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#define UI_StringF(fmt_cstr, ...) UI_StringF_(StringFromCstrNoLimit(fmt_cstr), __VA_ARGS__, FmtEnd)
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////////////////////////////////////////////////////////////
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//~ Style stack helpers
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void UI_PushDefaults(void);
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void UI_PushStyle(UI_StyleDesc desc);
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UI_Style UI_PopStyle(UI_StyleDesc desc);
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#define UI_STYLEDESC(name, ...) (UI_StyleDesc) { .style.kind = CAT(UI_StyleKind_,name), __VA_ARGS__ }
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#define UI_SetNext(name, ...) UI_PushStyle(UI_STYLEDESC(name, .pop_when_used = 1, .style.name = __VA_ARGS__))
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#define UI_Push(name, ...) UI_PushStyle(UI_STYLEDESC(name, .style.name = __VA_ARGS__))
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#define UI_ForceNext(name, ...) UI_PushStyle(UI_STYLEDESC(name, .pop_when_used = 1, .override = 1, .style.name = __VA_ARGS__))
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#define UI_ForcePush(name, ...) UI_PushStyle(UI_STYLEDESC(name, .override = 1, .style.name = __VA_ARGS__))
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#define UI_Pop(name, ...) UI_PopStyle(UI_STYLEDESC(name, .force_pop = 1, __VA_ARGS__)).name
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#define UI_PeekTop(name, ...) UI_PopStyle(UI_STYLEDESC(name, __VA_ARGS__)).name
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#define UI_Top(name, ...) UI_PopStyle(UI_STYLEDESC(name, .use = 1, __VA_ARGS__)).name
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#define UI_SetDF(name, ...) DeferFor(UI_Push(name, __VA_ARGS__), UI_Pop(name))
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#define UI_PushCopy(name, src, ...) do { \
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UI_StyleDesc _new = src; \
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_new.style.kind = CAT(UI_StyleKind_,name); \
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_new.style.name = __VA_ARGS__; \
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UI_PushStyle(_new); \
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} while (0)
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////////////////////////////////////////////////////////////
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//~ Checkpoint helpers
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UI_Checkpoint UI_PushCp(UI_Key parent);
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void UI_PopCp(UI_Checkpoint pop_to);
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UI_Checkpoint UI_TopCp(void);
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////////////////////////////////////////////////////////////
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//~ Size helpers
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#define UI_SIZE(_kind, _v, _s) (UI_Size) { .kind = (_kind), .v = (_v), .strictness = (_s) }
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#define UI_Px(_v, _s) UI_SIZE(UI_SizeKind_Pixel, (_v), (_s))
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#define UI_Shrink(_v, _s) UI_SIZE(UI_SizeKind_Shrink, (_v), (_s))
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#define UI_Grow(_v, _s) UI_SIZE(UI_SizeKind_Grow, (_v), (_s))
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#define UI_Fnt(_v, _s) UI_SIZE(UI_SizeKind_Pixel, (f32)UI_PeekTop(FontSize) * (_v), (_s))
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////////////////////////////////////////////////////////////
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//~ Rounding helpers
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#define UI_ROUND(_kind, _v) (UI_Round) { .kind = (_kind), .v = (_v)}
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#define UI_Rpx(_v) UI_ROUND(UI_RoundKind_Pixel, (_v))
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#define UI_Rgrow(_v) UI_ROUND(UI_RoundKind_Grow, (_v))
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////////////////////////////////////////////////////////////
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//~ Command helpers
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UI_Key UI_BuildBoxEx(UI_Key semantic_key);
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#define UI_BuildBox() UI_BuildBoxEx(UI_NilKey)
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void UI_SetRawTexture(UI_Key key, G_TextureRef tex, Rng2 uv);
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#if IsRtcEnabled
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#define UI_DebugBreak(box, target_flags) do { if (box->desc.debug_break_flags & target_flags) { DEBUGBREAK; } } while (0)
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#else
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#define UI_DebugBreak(...)
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#endif
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////////////////////////////////////////////////////////////
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//~ Begin frame
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UI_Frame *UI_BeginFrame(UI_FrameFlag frame_flags);
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////////////////////////////////////////////////////////////
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//~ Frame helpers
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UI_Frame *UI_CurrentFrame(void);
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UI_Frame *UI_PrevFrame(void);
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Arena *UI_FrameArena(void);
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////////////////////////////////////////////////////////////
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//~ Feedback
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//- Passive
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b32 UI_IsButtonPassive(Button button);
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//- Input
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b32 UI_Held(UI_Key key, Button button);
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i32 UI_Downs(UI_Key key, Button button);
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i32 UI_Ups(UI_Key key, Button button);
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i32 UI_Presses(UI_Key key, Button button);
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//- Interaction
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f32 UI_Active(UI_Key key);
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b32 UI_ActiveAbsolute(UI_Key key);
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f32 UI_Hot(UI_Key key);
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b32 UI_HotAbsolute(UI_Key key);
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f32 UI_Exists(UI_Key key);
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b32 UI_ExistsAbsolute(UI_Key);
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f64 UI_Misc(UI_Key key);
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f64 UI_DragMisc(UI_Key key);
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//- Layout
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Vec2 UI_Anchor(UI_Key key);
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Vec2 UI_DragAnchor(UI_Key key);
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Rng2 UI_Rect(UI_Key key);
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Rng2 UI_DragRect(UI_Key key);
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Vec2 UI_CursorPos(void);
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Vec2 UI_DragCursorPos(void);
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////////////////////////////////////////////////////////////
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//~ Layout helpers
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GC_Run UI_ScaleRun(Arena *arena, GC_Run unscaled_run, Vec2 scale);
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////////////////////////////////////////////////////////////
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//~ End frame
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void UI_EndFrame(UI_Frame *frame, i32 vsync);
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