WINDOWS

DateTime Picker
ListView for Tables
either Property Sheets or Tabs for Tabs
either Rebar or Toolbar for Toolbars
Status Bar
Tooltip (should be a property of each control)
Trackbar for Sliders
- cannot automatically snap to custom step; need to do it manually
Tree View
Up-Down Control for Spinners
maybe:
- swap ComboBox for ComboBoxEx (probably only if requested enough)
- IP Address control (iff GTK+ and Cocoa have it; maybe not necessary if we allow arbitrary target addresses?)
- ListView for its Icon View?
- something similar to Task Dialog might be useful to have as a convenience template later
TODO
- commcntl.h has stuff on a font control that isn't documented?
  - actually not a control, but localization support: http://msdn.microsoft.com/en-us/library/windows/desktop/bb775454%28v=vs.85%29.aspx
notes to self:
- OpenGL: http://msdn.microsoft.com/en-us/library/windows/desktop/dd374379%28v=vs.85%29.aspx

GTK+

GtkCalendar for date selection (TODO doesn't handle times)
GtkNotebook for Tabs
GtkScale for Sliders
- cannot automatically snap to INTEGERS (let alone to custom steps); need to do it manually
- natural size is 0x0 for some reason
GtkSpinButton for Spinners
GtkStatusBar
GtkToolbar
maybe:
- GtkFontButton would be nice but unless ComboBoxEx provides it Windows doesn't
  - same for GtkColorButton
- GtkIconView
- GtkSeparator (I think Windows makes this a mode of Static controls?)
notes to self:
- groupbox is GtkFrame
- GtkTreeView can do tree views and Tables
- OpenGL is done outside GTK+: https://projects.gnome.org/gtkglext/
  - only an issue if I want to provide OpenGL by default...
  - http://stackoverflow.com/questions/3815806/gtk-and-opengl-bindings suggest GtkGLArea is better but that seems to be a Mono thing? also indicates Clutter (with its Cogl) is not an option because it locks you out of using the OpenGL API directly
    - er no, the Mono thing is just the homepage... but it doesn't say if this targets GTK+ 2 or GTK+ 3, hm. (also it appears to not have been updated since Precise; in Ubuntu it's libgtkgl)
    - and gtkglext doesn't support GTK+ 3 officially anyway
    - and cairo doesn't seem to support OpenGL explicitly so it looks like I will need to communicate with glx directly: http://stackoverflow.com/questions/17628241/how-can-i-use-gtk3-and-opengl-together

COCOA

NSDatePicker for date/time selection
NSOutlineView for tree views
NSSlider for Sliders
NSStatusBar
NSStepper for Spinners
- TODO does this require me to manually pair it with a single-line text entry field?
NSTabView for Tabs
NSTableView for Tables
NSToolbar
maybe:
- NSBrowser seems nice...???
- NSCollectionView for Icon View?
- NSColorWell is the color button
- NSOpenGLView for OpenGL; need to see how much OpenGL-specific stuff I need to expose
- NSRuleEditor/NSPredicateEditor look nice too but
notes to self:
- groupbox is NSBox
- don't look at NSForm; though it arranges in the ideal form layout, it only allows single-line text entry fields as controls
TODO:
- what does NSPathControl look like?

Slider Capabilities

Capability	Windows	GTK+	Cocoa
Data Type	int	float	float
Can Simulate ints?	yes	TODO	TODO
Mouse Step Snap	1, fixed	something; likely 0.1 but not sure	yes (`setAllowsTickMarkValuesOnly:`); caveat: must specify an exact number of ticks (see below)
Keyboard Step Snap	configurable	configurable	TODO (same as mouse?)
Current Value Display	tooltip during drag	label, always visible	TODO
Tooltips?	TODO	TODO	TODO
Ticks	configurable display, configurable interval	TODO	configurable display; configurable COUNT (not interval!)
Can Catch Mouse Events to Snap?	I think this is how to do it	TODO	TODO
Preferred Size	given in UI guidelines	natural: 0x0; minimum: TODO	TODO

Spinner Capabilities

Capability	Windows	GTK+	Cocoa
Data Type	int	float	flaot
Can Simulate ints?	yes	yes	TODO
Mouse Step Snap	1, fixed	configurable	configurable
Keyboard Step Snap	1, fixed	configurable (uses same value as mouse)	TODO (same as mouse?)
Can Catch Events To Snap?	TODO	no need	TODO
Preferred Size	TODO	TODO	TODO