returns number of contours

rects array must be big enough to accommodate all characters in the given ranges

note: this routine clips fills that extend off the edges... ideally this wouldn't happen, but it could happen if the truetype glyph bounding boxes are

x^3 + c*x^2 + b*x + a = 0

tessellate until threshold p is happy... @TODO warped to compensate for non-linear stretching

Set bit n in the array

Load embedded ProggyClean.ttf at size 13, disable oversampling

NB: Transfer ownership of 'ttf_data' to ImFontAtlas, unless font_cfg_template->FontDataOwnedByAtlas == false. Owned TTF buffer will be deleted after B

Memory Allocation Functions

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

Call when current ID is active. When this returns true you need to: a) call SetDragDropPayload() exactly once, b) you may render the payload visual/de

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()

For the main menu bar, which cannot be moved, we honor g.Style.DisplaySafeAreaPadding to ensure text can be visible on a TV set.

This is a helper to handle the simplest case of associating one named popup to one given widget. You may want to handle this on user side if you have

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

Not exposed publicly as BeginTooltip() because bool parameters are evil. Let's see if other needs arise first.