GUI - Slider control

[historic_bruno]

Example: Such a control would help in various parts of the UI that need numeric values chosen along a scale.

Unique attributes:

• Current value of the slider (possibly re-use caption field like other controls, should be readable/writable)
• Orientation (horizontal or vertical)
• Minimum value of the slider (left or bottom)
• Maximum value of the slider (right or top)
• Width of the button in screen coordinates
• Background area sprite
• Draggable button sprite
• Sprites for disable/pressed states
• Slider for integer or float values

Advanced version with markers/intervals:

• Automatic placement of markers in equal intervals
• Custom placement of markers, labels and tooltips on mouseover
• Marker sprite and size

For horizontal slider, left-right arrow keys should move it, for vertical slider, up-down arrow keys should move it.

Old reference document: GUI_-_Slider

[historic_bruno]

Example of a slider, from wxWidgets Windows port

[Vladislav Belov]

Replying to historic_bruno:

Example: Such a control would help in various parts of the UI that need numeric values chosen along a scale.

This control will be good for settings (f.e. audio volume) or game setup. It could implemented like scrollbar, but horizontally, with adding the textbox for editing, which could be hidden.

[Imarok]

dupe of #4039?

[elexis]

Added to the ticket description above:

The slider should be usable for both natural numbers / integers (f.e. observer limit, AI difficulty) and floats (f.e. volume control, game speed).

The slider should show the selected, min and max value somewhere (either in the toolip or below the markers).

[elexis]

To comfortably seek/jump to savestates in replays (#3261), we need markers with custom position, label and tooltip on mouseover (so it could show markers for savepoints and events like player defeat).

[elexis]

In r19479:

Add sliders to the GUI. Use them for the sound/music volume controls.

Patch by vladislavbelov, based on a patch by dpiquet.

Fixes #4039. Differential Revision: ​​https://code.wildfiregames.com/D325

[Imarok]

In 22164:

[CSlider] On click move the slider-button to the mouse position

Reviewed By: vladislavbelov
Refs: #2593
Differential Revision: ​https://code.wildfiregames.com/D1622

[elexis]

In 23435:

CSlider inherits IGUIButtonBehavior to gains button sounds, press/release events, duplication removal, continuation of sliding if the object is not hovered while the button is still pressed, refs #2593, rP19479/D325, rP22164/D1622.
Use the events to fix jittering of the gamesetup slider in multiplayermode, refs rP23430/D2571.

Differential Revision: ​https://code.wildfiregames.com/D2592
Reviewed By: nani
Comments By: Vladislav