Examples: SDL: Fixed mapping of Insert key (#1555, fix bug introduced in #1541)

Comments about Begin/End pair and handling of return value.

InputText: Minor tweak.

InputText: Cursor X position not lost when clicking outside on an item that's submitted after the InputText(). It was only noticeable when restoring focus programmatically. (#1418, #1554)

Internal: DrawData: Tidying, renaming.

Internals: DrawData: We don't need an intermediate layer for popups.

Metrics: Tweaks to hover-window-drawlist to see window bounding box.

Internals: DrawData: Refactored chunks into a ImDrawDataBuilder we can reuse.

MIssing IMGUI_API for a type with non-inline methods.

Internals: DrawData: renamed fields only (committing separately so that next commit is less nosiy).

MovingWindow: Track click offset based on MovingWindow and not its RootWindow. Followup to 3849bb4. Comments + adding a local to ease patch #1345.

Merge pull request #1551 from Crunkle/master ...

Fix incorrect header name on Linux MinGW systems.

Fix cross compilers

Internals: Merge of harmless stuff from Navigation stuff. Added GetHoveredID() internal helper.

Internals: Initializing fields in same order as declaration order + fixed uninitialized DragDropAcceptIdCurrRectSurface (was harmless)

Begin: FIx previous commit - no need to call on collapsed window. Handle manual resize (grip, border, gamepad) before setting up window DrawList main clipping rectangle. Sane (and required for viewport code). (#822, #1542)

Begin: Handle manual resize (grip, border, gamepad) before setting up window DrawList main clipping rectangle. Sane (and required for viewport code). (#822, #1542)

MovingWindow: Proper fix for 651538e attempt, without altering MovingWindow which has side-effects. Clicking on a window with the ImGuiWIndowFlags_NoMove flags takes an ActiveId so we can't hover something else. (ref #1381, #1337)

Revert "Clicking on a window with the ImGuiWIndowFlags_NoMove flags takes an ActiveId so we can't hover something else. (ref #1381, #1337)" ...

This reverts commit 651538e.

Begin: Shuffling bits of code around.

Clicking on a window with the ImGuiWIndowFlags_NoMove flags takes an ActiveId so we can't hover something else. (ref #1381, #1337)

Demo: Using IM_COL32() instead of ImColor() in ImDrawList centric contexts.

Demo: Tweaks format.

Made obsolete IsAnyWindowHovered()/IsAnyWindowFocused() static inline. static only tends to trigger warnings. (#1382)

Added ImGuiHoveredFlags_AnyWindow, ImGuiFocusedFlags_AnyWindow. Obsoleted IsAnyWindowHovered()/IsAnyWindowFocused() in favor of IsWindowHovered(ImGuiHoveredFlags_AnyWindow)/IsWindowFocused(ImGuiFocusedFlags_AnyWindow). Added to demo. (#1382)

Internals: Begin: Refactor some code into an UpdateManualResize() function.

Internals: Begin: Moved DrawList setup code below, the viewport system will need to push the outer clipping rectangle as late as possible.

Begin: Moving some code around for the benefits of the wip viewport branch.

Internals: Using ImFloor().when appropriate.

Internals: Rect: Added ClipWillFull helper + comments on variations.