mirror of https://github.com/fltk/fltk
Reimplement Fl_Group::delete_child(int) for Fl_Scroll
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@ -163,6 +163,10 @@ public:
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int yposition() const {return yposition_;}
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void scroll_to(int, int);
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void clear();
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/* delete child n (by index) */
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virtual int delete_child(int n);
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/**
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Gets the current size of the scrollbars' troughs, in pixels.
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@ -44,6 +44,33 @@ void Fl_Scroll::fix_scrollbar_order() {
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}
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}
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/**
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Removes the widget at \p index from the group and deletes it.
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This method does nothing if \p index is out of bounds or
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if Fl_Group::child(index) is one of the scrollbars.
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\param[in] index index of child to be removed
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\returns success (0) or error code
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\retval 0 success
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\retval 1 index out of range
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\retval 2 widget not allowed to be removed (see note)
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\see Fl_Group::delete_child()
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\since FLTK 1.4.0
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*/
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int Fl_Scroll::delete_child(int index) {
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if (index < 0 || index >= children())
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return 1;
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Fl_Widget *w = child(index);
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if (w == &scrollbar || w == &hscrollbar)
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return 2; // can't delete scrollbars
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return Fl_Group::delete_child(index);
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}
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// Draw widget's background and children within a specific clip region
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// So widget can just redraw damaged parts.
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//
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