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Scrollbar: stabilize visibility of ScrollbarX when detecting a feedback loop. (#8488, #3285, #4539)

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ocornut 2025-03-12 14:15:51 +01:00
parent 6e30c42101
commit d9dad2f4a1
3 changed files with 28 additions and 3 deletions
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9
imgui_internal.h
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@ -367,9 +367,10 @@ static inline void ImQsort(void* base, size_t count, size_t size_of_element
IMGUI_API ImU32 ImAlphaBlendColors(ImU32 col_a, ImU32 col_b);
// Helpers: Bit manipulation
static inline bool ImIsPowerOfTwo(int v) { return v != 0 && (v & (v - 1)) == 0; }
static inline bool ImIsPowerOfTwo(ImU64 v) { return v != 0 && (v & (v - 1)) == 0; }
static inline int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
static inline bool ImIsPowerOfTwo(int v) { return v != 0 && (v & (v - 1)) == 0; }
static inline bool ImIsPowerOfTwo(ImU64 v) { return v != 0 && (v & (v - 1)) == 0; }
static inline int ImUpperPowerOfTwo(int v) { v--; v |= v >> 1; v |= v >> 2; v |= v >> 4; v |= v >> 8; v |= v >> 16; v++; return v; }
static inline unsigned int ImCountSetBits(unsigned int v) { unsigned int count = 0; while (v > 0) { v = v & (v - 1); count++; } return count; }
// Helpers: String
#define ImStrlen strlen
@ -2514,6 +2515,8 @@ struct IMGUI_API ImGuiWindow
ImVec2 ScrollTargetEdgeSnapDist; // 0.0f = no snapping, >0.0f snapping threshold
ImVec2 ScrollbarSizes; // Size taken by each scrollbars on their smaller axis. Pay attention! ScrollbarSizes.x == width of the vertical scrollbar, ScrollbarSizes.y = height of the horizontal scrollbar.
bool ScrollbarX, ScrollbarY; // Are scrollbars visible?
bool ScrollbarXStabilizeEnabled; // Was ScrollbarX previously auto-stabilized?
ImU8 ScrollbarXStabilizeToggledHistory; // Used to stabilize scrollbar visibility in case of feedback loops
bool Active; // Set to true on Begin(), unless Collapsed
bool WasActive;
bool WriteAccessed; // Set to true when any widget access the current window