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"

Functions
void	DrawSliderWidget (Rect r, Colours wedge_colour, Colours handle_colour, TextColour text_colour, int min_value, int max_value, int nmarks, int value, SliderMarkFunc *mark_func)
	Draw a slider widget with knob at given value.
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.

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.
[in,out]	value	Value to modify

Returns: True if the value setting was modified

Definition at line 94 of file slider.cpp.

References _current_text_dir, Clamp(), Point, Rect, ScaleGUITrad(), TD_RTL, and Coord2D< T >::x.

Referenced by GameOptionsWindow::OnClick(), and MusicWindow::OnClick().

◆ DrawSliderWidget()

void DrawSliderWidget	(	Rect	r,
		Colours	wedge_colour,
		Colours	handle_colour,
		TextColour	text_colour,
		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
wedge_colour	Colour to draw wedge.
handle_colour	Colour to draw handle.
text_colour	Colour of text.
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 34 of file slider.cpp.

References _current_text_dir, Clamp(), DrawFrameRect(), DrawString(), FS_SMALL, GetCharacterHeight(), GetColourGradient(), GetStringBoundingBox(), GfxFillPolygon(), Point, Rect, SA_CENTER, WidgetDimensions::scaled, ScaleGUITrad(), and TD_RTL.

Referenced by GameOptionsWindow::DrawWidget(), and MusicWindow::DrawWidget().

Variable Documentation

◆ SLIDER_WIDTH

const int SLIDER_WIDTH = 3

static

Definition at line 20 of file slider.cpp.