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Clipper: Rework inner logic to allow functioning with a zero-clear constructor. (#5856)

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This commit is contained in:
ocornut 2023-06-13 14:55:02 +02:00
parent 9c16976749
commit e95d66faa8
3 changed files with 8 additions and 5 deletions
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3
docs/CHANGELOG.txt
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@ -38,6 +38,9 @@ Other changes:
- Tables: Fixed a regression in 1.89.6 leading to the first column of tables with either
ScrollX or ScrollY flags from being impossible to resize. (#6503)
- Clipper: Rework inner logic to allow functioning with a zero-clear constructor.
This is order to facilitate usage for language bindings (e.g cimgui or dear_binding)
where user may not be callinga constructor manually. (#5856)
- Debug Tools: Added 'io.ConfigDebugIniSettings' option to save .ini data with extra
comments. Currently mainly for inspecting Docking .ini data, but makes saving slower.
- Backends: OpenGL3: Fixed support for glBindSampler() backup/restore on ES3. (#6375, #6508) [@jsm174]

8
imgui.cpp
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@ -2750,9 +2750,6 @@ static void ImGuiListClipper_SeekCursorForItem(ImGuiListClipper* clipper, int it
ImGuiListClipper::ImGuiListClipper()
{
memset(this, 0, sizeof(*this));
Ctx = ImGui::GetCurrentContext();
IM_ASSERT(Ctx != NULL);
ItemsCount = -1;
}
ImGuiListClipper::~ImGuiListClipper()
@ -2762,6 +2759,9 @@ ImGuiListClipper::~ImGuiListClipper()
void ImGuiListClipper::Begin(int items_count, float items_height)
{
if (Ctx == NULL)
Ctx = ImGui::GetCurrentContext();
ImGuiContext& g = *Ctx;
ImGuiWindow* window = g.CurrentWindow;
IMGUI_DEBUG_LOG_CLIPPER("Clipper: Begin(%d,%.2f) in '%s'\n", items_count, items_height, window->Name);
@ -2787,10 +2787,10 @@ void ImGuiListClipper::Begin(int items_count, float items_height)
void ImGuiListClipper::End()
{
ImGuiContext& g = *Ctx;
if (ImGuiListClipperData* data = (ImGuiListClipperData*)TempData)
{
// In theory here we should assert that we are already at the right position, but it seems saner to just seek at the end and not assert/crash the user.
ImGuiContext& g = *Ctx;
IMGUI_DEBUG_LOG_CLIPPER("Clipper: End() in '%s'\n", g.CurrentWindow->Name);
if (ItemsCount >= 0 && ItemsCount < INT_MAX && DisplayStart >= 0)
ImGuiListClipper_SeekCursorForItem(this, ItemsCount);

2
imgui.h
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@ -23,7 +23,7 @@
// Library Version
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
#define IMGUI_VERSION "1.89.7 WIP"
#define IMGUI_VERSION_NUM 18962
#define IMGUI_VERSION_NUM 18963
#define IMGUI_HAS_TABLE
/*