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Misc tweaks/fixes (see details).

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Combo: ultra minor fix for popup positioning policy mismatch depending on ImGuiComboFlags_PopupAlignLeft flag.
Made ImHashXXX functions return ImGuiID.
IsWindowNavFocusable use !WasActive.. it worked because it was only called in NewFrame()->NavUpdate() before the transition loop + EndFrame() only.
Fix unused variable warning.
This commit is contained in:
ocornut 2020-11-30 12:40:49 +01:00
parent 9801c8c1c5
commit ae3e2406ec
4 changed files with 15 additions and 10 deletions
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7
imgui.cpp
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@ -1433,7 +1433,7 @@ static const ImU32 GCrc32LookupTable[256] =
// Known size hash
// It is ok to call ImHashData on a string with known length but the ### operator won't be supported.
// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
ImU32 ImHashData(const void* data_p, size_t data_size, ImU32 seed)
ImGuiID ImHashData(const void* data_p, size_t data_size, ImU32 seed)
{
ImU32 crc = ~seed;
const unsigned char* data = (const unsigned char*)data_p;
@ -1449,7 +1449,7 @@ ImU32 ImHashData(const void* data_p, size_t data_size, ImU32 seed)
// - If we reach ### in the string we discard the hash so far and reset to the seed.
// - We don't do 'current += 2; continue;' after handling ### to keep the code smaller/faster (measured ~10% diff in Debug build)
// FIXME-OPT: Replace with e.g. FNV1a hash? CRC32 pretty much randomly access 1KB. Need to do proper measurements.
ImU32 ImHashStr(const char* data_p, size_t data_size, ImU32 seed)
ImGuiID ImHashStr(const char* data_p, size_t data_size, ImU32 seed)
{
seed = ~seed;
ImU32 crc = seed;
@ -6405,7 +6405,7 @@ bool ImGui::IsWindowFocused(ImGuiFocusedFlags flags)
// If you want a window to never be focused, you may use the e.g. NoInputs flag.
bool ImGui::IsWindowNavFocusable(ImGuiWindow* window)
{
return window->Active && window == window->RootWindow && !(window->Flags & ImGuiWindowFlags_NoNavFocus);
return window->WasActive && window == window->RootWindow && !(window->Flags & ImGuiWindowFlags_NoNavFocus);
}
float ImGui::GetWindowWidth()
@ -7002,6 +7002,7 @@ void ImGuiStackSizes::CompareWithCurrentState()
{
ImGuiContext& g = *GImGui;
ImGuiWindow* window = g.CurrentWindow;
IM_UNUSED(window);
// Window stacks
// NOT checking: DC.ItemWidth, DC.TextWrapPos (per window) to allow user to conveniently push once and not pop (they are cleared on Begin)

4
imgui.h
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@ -371,9 +371,9 @@ namespace ImGui
IMGUI_API ImU32 GetColorU32(ImU32 col); // retrieve given color with style alpha applied
// Parameters stacks (current window)
IMGUI_API void PushItemWidth(float item_width); // push width of items for common large "item+label" widgets. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -1.0f always align width to the right side). 0.0f = default to ~2/3 of windows width,
IMGUI_API void PushItemWidth(float item_width); // push width of items for common large "item+label" widgets. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side). 0.0f = default to ~2/3 of windows width,
IMGUI_API void PopItemWidth();
IMGUI_API void SetNextItemWidth(float item_width); // set width of the _next_ common large "item+label" widget. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -1.0f always align width to the right side)
IMGUI_API void SetNextItemWidth(float item_width); // set width of the _next_ common large "item+label" widget. >0.0f: width in pixels, <0.0f align xx pixels to the right of window (so -FLT_MIN always align width to the right side)
IMGUI_API float CalcItemWidth(); // width of item given pushed settings and current cursor position. NOT necessarily the width of last item unlike most 'Item' functions.
IMGUI_API void PushTextWrapPos(float wrap_local_pos_x = 0.0f); // push word-wrapping position for Text*() commands. < 0.0f: no wrapping; 0.0f: wrap to end of window (or column); > 0.0f: wrap at 'wrap_pos_x' position in window local space
IMGUI_API void PopTextWrapPos();

6
imgui_internal.h
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@ -250,10 +250,10 @@ namespace ImStb
//-----------------------------------------------------------------------------
// Helpers: Hashing
IMGUI_API ImU32 ImHashData(const void* data, size_t data_size, ImU32 seed = 0);
IMGUI_API ImU32 ImHashStr(const char* data, size_t data_size = 0, ImU32 seed = 0);
IMGUI_API ImGuiID ImHashData(const void* data, size_t data_size, ImU32 seed = 0);
IMGUI_API ImGuiID ImHashStr(const char* data, size_t data_size = 0, ImU32 seed = 0);
#ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
static inline ImU32 ImHash(const void* data, int size, ImU32 seed = 0) { return size ? ImHashData(data, (size_t)size, seed) : ImHashStr((const char*)data, 0, seed); } // [moved to ImHashStr/ImHashData in 1.68]
static inline ImGuiID ImHash(const void* data, int size, ImU32 seed = 0) { return size ? ImHashData(data, (size_t)size, seed) : ImHashStr((const char*)data, 0, seed); } // [moved to ImHashStr/ImHashData in 1.68]
#endif
// Helpers: Sorting

8
imgui_widgets.cpp
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@ -1590,13 +1590,17 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboF
char name[16];
ImFormatString(name, IM_ARRAYSIZE(name), "##Combo_%02d", g.BeginPopupStack.Size); // Recycle windows based on depth
// Peak into expected window size so we can position it
// Position the window given a custom constraint (peak into expected window size so we can position it)
// This might be easier to express with an hypothetical SetNextWindowPosConstraints() function.
if (ImGuiWindow* popup_window = FindWindowByName(name))
if (popup_window->WasActive)
{
// Always override 'AutoPosLastDirection' to not leave a chance for a past value to affect us.
ImVec2 size_expected = CalcWindowExpectedSize(popup_window);
if (flags & ImGuiComboFlags_PopupAlignLeft)
popup_window->AutoPosLastDirection = ImGuiDir_Left;
popup_window->AutoPosLastDirection = ImGuiDir_Left; // "Below, Toward Left"
else
popup_window->AutoPosLastDirection = ImGuiDir_Down; // "Below, Toward Right (default)"
ImRect r_outer = GetWindowAllowedExtentRect(popup_window);
ImVec2 pos = FindBestWindowPosForPopupEx(frame_bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, r_outer, frame_bb, ImGuiPopupPositionPolicy_ComboBox);
SetNextWindowPos(pos);