slider.cpp File Reference

Implementation of the horizontal slider widget. More...

#include "stdafx.h"
#include "gfx_func.h"
#include "palette_func.h"
#include "slider_func.h"
#include "strings_func.h"
#include "window_gui.h"
#include "zoom_func.h"
#include "safeguards.h"

Go to the source code of this file.

Functions
void	DrawSliderWidget (Rect r, int min_value, int max_value, int nmarks, int value, SliderMarkFunc *mark_func)
	Draw a slider widget with knob at given value. More...
bool	ClickSliderWidget (Rect r, Point pt, int min_value, int max_value, int nmarks, int &value)
	Handle click on a slider widget to change the value. More...

Variables
static const int	SLIDER_WIDTH = 3

Detailed Description

Implementation of the horizontal slider widget.

Definition in file slider.cpp.

Function Documentation

ClickSliderWidget()

bool ClickSliderWidget	(	Rect	r,
		Point	pt,
		int	min_value,
		int	max_value,
		int	nmarks,
		int &	value
	)

Handle click on a slider widget to change the value.

Parameters

r	Rectangle of the widget
pt	Clicked point
min_value	Minimum value of slider
max_value	Maximum value of slider
nmarks	Number of marks displayed. Value will be rounded to nearest mark.
value[in,out]	Value to modify

Returns

True if the value setting was modified

Definition at line 91 of file slider.cpp.

References ScaleGUITrad().

DrawSliderWidget()

void DrawSliderWidget	(	Rect	r,
		int	min_value,
		int	max_value,
		int	nmarks,
		int	value,
		SliderMarkFunc *	mark_func
	)

Draw a slider widget with knob at given value.

Parameters

r	Rectangle to draw the widget in
min_value	Minimum value of slider
max_value	Maximum value of slider
nmarks	Number of marks to display (when mark_func is provided.)
value	Value to put the slider at
mark_func	Callback function to get the StringID to draw on a mark.

Definition at line 31 of file slider.cpp.

References FS_SMALL, GetCharacterHeight(), WidgetDimensions::hsep_normal, WidgetDimensions::scaled, and ScaleGUITrad().