+// ----------------------------------------------------------------------------
+// geometry
+// ----------------------------------------------------------------------------
+
+bool wxScrollHelper::ScrollLayout()
+{
+ if ( m_win->GetSizer() && m_targetWindow == m_win )
+ {
+ // If we're the scroll target, take into account the
+ // virtual size and scrolled position of the window.
+
+ int x = 0, y = 0, w = 0, h = 0;
+ CalcScrolledPosition(0,0, &x,&y);
+ m_win->GetVirtualSize(&w, &h);
+ m_win->GetSizer()->SetDimension(x, y, w, h);
+ return true;
+ }
+
+ // fall back to default for LayoutConstraints
+ return m_win->wxWindow::Layout();
+}
+
+void wxScrollHelper::ScrollDoSetVirtualSize(int x, int y)
+{
+ m_win->wxWindow::DoSetVirtualSize( x, y );
+ AdjustScrollbars();
+
+ if (m_win->GetAutoLayout())
+ m_win->Layout();
+}
+
+// wxWindow's GetBestVirtualSize returns the actual window size,
+// whereas we want to return the virtual size
+wxSize wxScrollHelper::ScrollGetBestVirtualSize() const
+{
+ wxSize clientSize(m_win->GetClientSize());
+ if ( m_win->GetSizer() )
+ clientSize.IncTo(m_win->GetSizer()->CalcMin());
+
+ return clientSize;
+}
+
+// return the window best size from the given best virtual size
+wxSize
+wxScrollHelper::ScrollGetWindowSizeForVirtualSize(const wxSize& size) const
+{
+ // Only use the content to set the window size in the direction
+ // where there's no scrolling; otherwise we're going to get a huge
+ // window in the direction in which scrolling is enabled
+ int ppuX, ppuY;
+ GetScrollPixelsPerUnit(&ppuX, &ppuY);
+
+ wxSize minSize = m_win->GetMinSize();
+ if ( !minSize.IsFullySpecified() )
+ minSize = m_win->GetSize();
+
+ wxSize best(size);
+ if (ppuX > 0)
+ best.x = minSize.x;
+ if (ppuY > 0)
+ best.y = minSize.y;
+
+ return best;
+}
+
projects / wxWidgets.git / blobdiff