From d7b88a3bcc7e76f38ee5799be7722fd5a10781ef Mon Sep 17 00:00:00 2001 From: Michael R Sweet Date: Wed, 13 Jan 1999 19:28:54 +0000 Subject: Updated all links so they work between files. Revision 1. git-svn-id: file:///fltk/svn/fltk/trunk@219 ea41ed52-d2ee-0310-a9c1-e6b18d33e121 --- documentation/Fl_Scrollbar.html | 135 +++++++++++++++++----------------------- 1 file changed, 58 insertions(+), 77 deletions(-) (limited to 'documentation/Fl_Scrollbar.html') diff --git a/documentation/Fl_Scrollbar.html b/documentation/Fl_Scrollbar.html index 535831546..01e59a38e 100644 --- a/documentation/Fl_Scrollbar.html +++ b/documentation/Fl_Scrollbar.html @@ -1,78 +1,59 @@ - - - -
- -

class Fl_Scrollbar

- -
- -

Class Hierarchy

- - +

Include Files

+ +

Description

+ The Fl_Scrollbar widget displays a slider with arrow buttons +at the ends of the scrollbar. Clicking on the arrows move up/left and +down/right by linesize(). Scrollbars also accept +FL_SHORTCUT events: the arrows move by linesize(), and +vertical scrollbars take Page Up/Down (they move by the page size minus +linesize()) and Home/End (they jump to the top or bottom). +

Scrollbars have step(1) preset (they always return +integers). If desired you can set the step() to non-integer +values. You will then have to use casts to get at the floating-point +versions of value() from Fl_Slider.

+

Methods

+ +

Fl_Scrollbar::Fl_Scrollbar(int x, +int y, int w, int h, const char *label = 0)

+ Creates a new Fl_Scrollbar widget using the given position, +size, and label string. You need to do type(FL_HORIZONTAL) if +you want a horizontal scrollbar. +

virtual +Fl_Scrollbar::~Fl_Scrollbar()

+ Destroys the valuator. +

int Fl_Scrollbar::linesize() const +
void Fl_Scrollbar::linesize(int i)

+ This number controls how big the steps are that the arrow keys do. In +addition page up/down move by the size last sent to value() + minus one linesize(). The default is 16. +

int Fl_Scrollbar::value() +
int Fl_Scrollbar::value(int position, int size, int top, int total) +

+ The first form returns the integer value of the scrollbar. You can get +the floating point value with Fl_Slider::value(). The second +form sets value(), range(), and slider_size() + to make a variable-sized scrollbar. You should call this every time +your window changes size, your data changes size, or your scroll +position changes (even if in response to a callback from this +scrollbar). All necessary calls to redraw() are done. \ No newline at end of file -- cgit v1.2.3