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TreeNode: Made clicking on arrow toggle toggle the open state on the Mouse Down event. Amend 05420ea2c.

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ocornut 2020-08-20 22:26:10 +02:00
parent 97dad66516
commit 9b50e691ed
3 changed files with 9 additions and 8 deletions
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4
docs/CHANGELOG.txt
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@ -45,6 +45,10 @@ Other Changes:
where v_min == v_max. (#3361)
- BeginMenuBar: Fixed minor bug where CursorPosMax gets pushed to CursorPos prior to calling BeginMenuBar(),
so e.g. calling the function at the end of a window would often add +ItemSpacing.y to scrolling range.
- TreeNode, CollapsingHeader: Made clicking on arrow toggle toggle the open state on the Mouse Down event
rather than the Mouse Down+Up sequence, even if the _OpenOnArrow flag isn't set. This is standard behavior
and amends the change done in 1.76 which only affected cases were _OpenOnArrow flag was set.
(This is also necessary to support full multi/range-select/drag and drop operations.)
- Metrics: Various tweaks, listing windows front-to-back, greying inactive items when possible.
- Demo: Add simple InputText() callbacks demo (aside from the more elaborate ones in 'Examples->Console').

2
imgui.h
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@ -60,7 +60,7 @@ Index of this file:
// Version
// (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
#define IMGUI_VERSION "1.79 WIP"
#define IMGUI_VERSION_NUM 17802
#define IMGUI_VERSION_NUM 17803
#define IMGUI_CHECKVERSION() ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
// Define attributes of all API symbols declarations (e.g. for DLL under Windows)

11
imgui_widgets.cpp
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@ -5644,17 +5644,14 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
// Open behaviors can be altered with the _OpenOnArrow and _OnOnDoubleClick flags.
// Some alteration have subtle effects (e.g. toggle on MouseUp vs MouseDown events) due to requirements for multi-selection and drag and drop support.
// - Single-click on label = Toggle on MouseUp (default)
// - Single-click on arrow = Toggle on MouseUp (when _OpenOnArrow=0)
// - Single-click on label = Toggle on MouseUp (default, when _OpenOnArrow=0)
// - Single-click on arrow = Toggle on MouseDown (when _OpenOnArrow=0)
// - Single-click on arrow = Toggle on MouseDown (when _OpenOnArrow=1)
// - Double-click on label = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1)
// - Double-click on arrow = Toggle on MouseDoubleClick (when _OpenOnDoubleClick=1 and _OpenOnArrow=0)
// This makes _OpenOnArrow have a subtle effect on _OpenOnDoubleClick: arrow click reacts on Down rather than Up.
// It is rather standard that arrow click react on Down rather than Up and we'd be tempted to make it the default
// (by removing the _OpenOnArrow test below), however this would have a perhaps surprising effect on CollapsingHeader()?
// So right now we are making this optional. May evolve later.
// It is rather standard that arrow click react on Down rather than Up.
// We set ImGuiButtonFlags_PressedOnClickRelease on OpenOnDoubleClick because we want the item to be active on the initial MouseDown in order for drag and drop to work.
if (is_mouse_x_over_arrow && (flags & ImGuiTreeNodeFlags_OpenOnArrow))
if (is_mouse_x_over_arrow)
button_flags |= ImGuiButtonFlags_PressedOnClick;
else if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick)
button_flags |= ImGuiButtonFlags_PressedOnClickRelease | ImGuiButtonFlags_PressedOnDoubleClick;