FLTK 1.3.0
Fl_Value_Output Class Reference

The Fl_Value_Output widget displays a floating point value. More...

#include <Fl_Value_Output.H>

Inheritance diagram for Fl_Value_Output:
Fl_Valuator Fl_Widget

List of all members.

Public Member Functions

 Fl_Value_Output (int x, int y, int w, int h, const char *l=0)
 Creates a new Fl_Value_Output widget using the given position, size, and label string.
int handle (int)
 Handles the specified event.
void soft (uchar s)
 If "soft" is turned on, the user is allowed to drag the value outside the range.
uchar soft () const
 If "soft" is turned on, the user is allowed to drag the value outside the range.
Fl_Color textcolor () const
 Sets the color of the text in the value box.
void textcolor (Fl_Color s)
 Gets the color of the text in the value box.
Fl_Font textfont () const
 Gets the typeface of the text in the value box.
void textfont (Fl_Font s)
 Sets the typeface of the text in the value box.
Fl_Fontsize textsize () const
 Gets the size of the text in the value box.
void textsize (Fl_Fontsize s)

Protected Member Functions

void draw ()
 Draws the widget.

Detailed Description

The Fl_Value_Output widget displays a floating point value.

If step() is not zero, the user can adjust the value by dragging the mouse left and right. The left button moves one step() per pixel, the middle by 10 * step(), and the right button by 100 * step().

This is much lighter-weight than Fl_Value_Input because it contains no text editing code or character buffer.

Fl_Value_Output.png

Constructor & Destructor Documentation

Fl_Value_Output::Fl_Value_Output ( int  X,
int  Y,
int  W,
int  H,
const char *  l = 0 
)

Creates a new Fl_Value_Output widget using the given position, size, and label string.

The default boxtype is FL_NO_BOX.

Inherited destructor destroys the Valuator.


Member Function Documentation

void Fl_Value_Output::draw ( ) [protected, virtual]

Draws the widget.

Never call this function directly. FLTK will schedule redrawing whenever needed. If your widget must be redrawn as soon as possible, call redraw() instead.

Override this function to draw your own widgets.

If you ever need to call another widget's draw method from within your own draw() method, e.g. for an embedded scrollbar, you can do it (because draw() is virtual) like this:

        Fl_Widget *s = &scroll;         // scroll is an embedded Fl_Scrollbar
        s->draw();                      // calls Fl_Scrollbar::draw()

Implements Fl_Widget.

int Fl_Value_Output::handle ( int  event) [virtual]

Handles the specified event.

You normally don't call this method directly, but instead let FLTK do it when the user interacts with the widget.

When implemented in a widget, this function must return 0 if the widget does not use the event or 1 otherwise.

Most of the time, you want to call the inherited handle() method in your overridden method so that you don't short-circuit events that you don't handle. In this last case you should return the callee retval.

Parameters:
[in]eventthe kind of event received
Return values:
0if the event was not used or understood
1if the event was used and can be deleted
See also:
Fl_Event

Reimplemented from Fl_Widget.

void Fl_Value_Output::soft ( uchar  s) [inline]

If "soft" is turned on, the user is allowed to drag the value outside the range.

If they drag the value to one of the ends, let go, then grab again and continue to drag, they can get to any value. Default is one.

uchar Fl_Value_Output::soft ( ) const [inline]

If "soft" is turned on, the user is allowed to drag the value outside the range.

If they drag the value to one of the ends, let go, then grab again and continue to drag, they can get to any value. Default is one.

Sets the color of the text in the value box.

void Fl_Value_Output::textcolor ( Fl_Color  s) [inline]

Gets the color of the text in the value box.

Fl_Font Fl_Value_Output::textfont ( ) const [inline]

Gets the typeface of the text in the value box.

void Fl_Value_Output::textfont ( Fl_Font  s) [inline]

Sets the typeface of the text in the value box.

Gets the size of the text in the value box.


The documentation for this class was generated from the following files: