Added SetColorEditOptions(). ColorPicker4: context menu to select picker type and alpha bar. Reorganized flags (again!). (#346)

Internals: Added ImLineClosestPoint, ImTriangleClosestPoint helpers. Changing ImVec2 arg to const ImVec2&

Internals: Added ImDot(), ImRotate(), ImLerp(v2,v2,float) helpers.

Internals: Added ImTriangleBarycentricCoords() helper. Renamed ImIsPointInTriangle() to ImTriangleContainsPoint(), with different arg order.

Comments about parts of imgui_internal.h that will self-destruct.

ColorPicker4: hue/alpha bars draw arrows that would look right on all background. RenderArrow helper. (#346)

ColorEdit4: Picker spawned from ColorEdit4 has a preview for original/previous color with revert button - WIP not really happy with it being in ColorEdit4 code (#346)

ColorButton: Pretty much gave up with getting the checkerboard + AA + rounding + blending + offset all working together with every combination under the sun. It works as long as you don't sneeze. (#346)

RenderColorRectWithAlphaCheckerboard() in one layer to shunt out anti-alasing artefacts when rounded. Added ImLerp(int,int,float). (#346)

ColorButton, ColorPicker: painfully made RenderColorRectWithAlphaCheckerboard more friendly to using Rounding and Border in style, still not perfect :( (#346) + comments

ColorEdit, ColorPicker, ColorButton: Display grid under transparent colors (WIP) (#346)

ColorPicker,ColorButton: Honor Border/Shadow style settings (#346)

ColorPicker: new prototype for ColorButton() .Added _NoTooltip, _NoLabel flags. Changing _Alpha flag to _NoAlpha makes so much much sense and allow to revert default parameters to zero. ColorEdit4/Picker4 don't attempt to read/write fourth component, making ColorEdit3/Picker3 shorter/faster. Tooltip and Picker called from ColorEdit can have a title. Picker shows colored square. Moved ColorTooltip() to imgui_internal.h (#346)

Merge branch 'master' into 2016-02-colorpicker

Tooltip: SetTooltip() is expanded immediately into a window, honoring current font / styling setting. Add internal mechanism to override tooltips (not exposed in BeginTooltip yet because bools are evil) (#862)

Internals: renaming IndexWithinParent to OrderWithinParent

Merge branch 'master' into 2016-02-colorpicker

Version 1.51 WIP tag

Version 1.50

Merge branch 'master' into 2016-02-colorpicker

Internal: Renamed ImLoadFileToMemory to ImFileLoadToMemory to be consistent with ImFileOpen + fix mismatching .h name (#917)

Merge branch 'master' into 2016-02-colorpicker

Added an explicit (internal) ClearActiveID() helper and removed the default NULL window parameter to internal SetActiveID(),

Merge branch 'master' into 2016-02-colorpicker

Using _wfopen() under Windows+MSVC because fopen() doesn't support UTF-8 encoding. Wrapped as ImFileOpen(). (#917)

Began improvements to columns API by splitting the Columns() function into BeginColumns() and EndColumns() and adding additional flags. The columns data still needs to be placed into a stack.

Fixed uninitialized variables (wouldn't have a real effect because they'd be cleared in Begin()).

Support for #define-ing GImGui and IMGUI_SET_CURRENT_CONTEXT_FUNC to enable custom thread-based hackery (#586)

Merge branch 'master' into 2016-02-colorpicker

Added ImGuiCorner enum to clarify some internal code