diff options
Diffstat (limited to 'FL/Fl_Scroll.H')
| -rw-r--r-- | FL/Fl_Scroll.H | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/FL/Fl_Scroll.H b/FL/Fl_Scroll.H index de713dd0f..5e256f41a 100644 --- a/FL/Fl_Scroll.H +++ b/FL/Fl_Scroll.H @@ -95,11 +95,33 @@ class FL_EXPORT Fl_Scroll : public Fl_Group { int xposition_, yposition_; int width_, height_; int oldx, oldy; + int scrollbar_size_; static void hscrollbar_cb(Fl_Widget*, void*); static void scrollbar_cb(Fl_Widget*, void*); void fix_scrollbar_order(); static void draw_clip(void*,int,int,int,int); +private: + + // + // Structure to manage scrollbar and widget interior sizes. + // + // Private for now -- we'd like to expose some of this at + // some point to solve STR#1895.) + // + typedef struct { + int scrollsize; // the scrollsize (global|local) + int innerbox_x, innerbox_y, innerbox_w, innerbox_h; // widget's inner box (excludes scrollbars) + int innerchild_x, innerchild_y, innerchild_w, innerchild_h; // widget's inner box including scrollbars + int child_l, child_r, child_b, child_t; // child bounding box: left/right/bottom/top + int hneeded, vneeded; // hor + ver scrollbar visibility + int hscroll_x, hscroll_y, hscroll_w, hscroll_h; // hor scrollbar size/position + int vscroll_x, vscroll_y, vscroll_w, vscroll_h; // ver scrollbar size/position + int hpos, hsize, hfirst, htotal; // hor scrollbar values (pos/size/first/total) + int vpos, vsize, vfirst, vtotal; // ver scrollbar values (pos/size/first/total) + } ScrollInfo; + void recalc_scrollbars(ScrollInfo &si); + protected: void bbox(int&,int&,int&,int&); @@ -131,6 +153,41 @@ public: int yposition() const {return yposition_;} void scroll_to(int, int); void clear(); + /** + Gets the current size of the scrollbars' troughs, in pixels. + + If this value is zero (default), this widget will use the + Fl::scrollbar_size() value as the scrollbar's width. + + \returns Scrollbar size in pixels, or 0 if the global Fl::scrollsize() is being used. + \see Fl::scrollbar_size(int) + */ + int scrollbar_size() const { + return(scrollbar_size_); + } + /** + Sets the pixel size of the scrollbars' troughs to the \p size, in pixels. + + Normally you should not need this method, and should use + Fl::scrollbar_size(int) instead to manage the size of ALL + your widgets' scrollbars. This ensures your application + has a consistent UI, is the default behavior, and is normally + what you want. + + Only use THIS method if you really need to override the global + scrollbar size. The need for this should be rare. + + Setting \p size to the special value of 0 causes the widget to + track the global Fl::scrollbar_size(), which is the default. + + \param[in] size Sets the scrollbar size in pixels.\n + If 0 (default), scrollbar size tracks the global Fl::scrollbar_size() + \see Fl::scrollbar_size() + */ + void scrollbar_size(int size) { + if ( size != scrollbar_size_ ) redraw(); + scrollbar_size_ = size; + } }; #endif |