Helper to create a child window / scrolling region that looks like a normal widget frame.

When this returns true you need to: a) call SetDragDropPayload() exactly once, b) you may render the payload visual/description, c) call EndDragDropSo

We don't use BeginDragDropTargetCustom() and duplicate its code because: 1) we use LastItemRectHoveredRect which handles items that pushes a temporari

Lock horizontal starting position + capture group bounding box into one "item" (so you can use IsItemHovered() or layout primitives such as SameLine()

Tip: To have a list filling the entire window width, use size.x = -FLT_MIN and pass an non-visible label e.g. "##empty" Tip: If your vertical size is

FIXME: Provided a rectangle perhaps e.g. a BeginMenuBarEx() could be used anywhere.. Currently the main responsibility of this function being to setup

This is a helper to handle the simplest case of associating one named popup to one given widget. - You can pass a NULL str_id to use the identifier of

Attention! BeginPopup() adds default flags which BeginPopupEx()!

If 'p_open' is specified for a modal popup window, the popup will have a regular close button which will close the popup. Note that popup visibility s

Read about "TABLE SIZING" at the top of this file.

For quicker full rebuild of a storage (instead of an incremental one), you may add all your contents and then sort once.

Text with a little bullet aligned to the typical tree node.

[Internal] Calculate full item size given user provided 'size' parameter and default width/height. Default width is often == CalcItemWidth(). Those tw

Calculate default item width given value passed to PushItemWidth() or SetNextItemWidth(). The SetNextItemWidth() data is generally cleared/consumed by

Helper to calculate coarse clipping of large list of evenly sized items. NB: Prefer using the ImGuiListClipper higher-level helper if you can! Read co

Calculate text size. Text can be multi-line. Optionally ignore text after a ## marker. CalcTextSize("") should return ImVec2(0.0f, g.FontSize)

t0 = previous time (e.g.: g.Time - g.IO.DeltaTime) t1 = current time (e.g.: g.Time) An event is triggered at: t = 0.0f t = repeat_delay, t = re

Call context hooks (used by e.g. test engine) We assume a small number of hooks so all stored in same array

Advanced: Channels - Use to split render into layers. By switching channels to can render out-of-order (e.g. submit FG primitives before BG primitives

- Get***() functions find pair, never add/allocate. Pairs are sorted so a query is O(log N) - Set***() functions find pair, insertion on demand if mis

Simple version, may lead to an inverted rectangle, which is fine for Contains/Overlaps test but not for display.

Button to close a window

Close the popup we have begin-ed into.

When popups are stacked, clicking on a lower level popups puts focus back to it and close popups above it. This function closes any popups that are ov

CollapsingHeader returns true when opened but do not indent nor push into the ID stack (because of the ImGuiTreeNodeFlags_NoTreePushOnOpen flag). This

A little color square. Return true when clicked. FIXME: May want to display/ignore the alpha component in the color display? Yet show it in the toolti

Convert hsv floats ([0-1],[0-1],[0-1]) to rgb floats ([0-1],[0-1],[0-1]), from Foley & van Dam p593 also http://en.wikipedia.org/wiki/HSL_and_HSV

Convert rgb floats ([0-1],[0-1],[0-1]) to hsv floats ([0-1],[0-1],[0-1]), from Foley & van Dam p592 Optimized http://lolengine.net/blog/2013/01/13/fas

Edit colors components (each component in 0.0f..1.0f range). See enum ImGuiColorEditFlags_ for available options. e.g. Only access 3 floats if ImGuiCo