initial commit

Signed-off-by: Peter Siegmund <mars3142@noreply.mars3142.dev>

libs/wxWidgets-3.3.1/include/wx/gtk/scrolwin.h

@@ -0,0 +1,82 @@
+/////////////////////////////////////////////////////////////////////////////
+// Name:        wx/gtk/scrolwin.h
+// Purpose:     wxScrolledWindow class
+// Author:      Robert Roebling
+// Modified by: Vadim Zeitlin (2005-10-10): wxScrolledWindow is now common
+// Created:     01/02/97
+// Copyright:   (c) Robert Roebling
+// Licence:     wxWindows licence
+/////////////////////////////////////////////////////////////////////////////
+
+#ifndef _WX_GTK_SCROLLWIN_H_
+#define _WX_GTK_SCROLLWIN_H_
+
+// ----------------------------------------------------------------------------
+// wxScrolledWindow
+// ----------------------------------------------------------------------------
+
+class WXDLLIMPEXP_CORE wxScrollHelper : public wxScrollHelperBase
+{
+    typedef wxScrollHelperBase base_type;
+public:
+    // default ctor doesn't do anything
+    wxScrollHelper(wxWindow *win) : wxScrollHelperBase(win)
+    {
+        m_win->SetScrollHelper(this);
+    }
+
+    // implement the base class methods
+    virtual void SetScrollbars(int pixelsPerUnitX, int pixelsPerUnitY,
+                               int noUnitsX, int noUnitsY,
+                               int xPos = 0, int yPos = 0,
+                               bool noRefresh = false) override;
+    virtual void AdjustScrollbars() override;
+
+    virtual bool IsScrollbarShown(int orient) const override;
+
+protected:
+    virtual void DoScroll(int x, int y) override;
+    virtual void DoShowScrollbars(wxScrollbarVisibility horz,
+                                  wxScrollbarVisibility vert) override;
+
+private:
+    // this does (each) half of AdjustScrollbars() work
+    void DoAdjustScrollbar(GtkRange* range,
+                           int pixelsPerLine,
+                           int winSize,
+                           int virtSize,
+                           int *pos,
+                           int *lines,
+                           int *linesPerPage);
+
+    void DoAdjustHScrollbar(int winSize, int virtSize)
+    {
+        DoAdjustScrollbar
+        (
+            m_win->m_scrollBar[wxWindow::ScrollDir_Horz],
+            m_xScrollPixelsPerLine, winSize, virtSize,
+            &m_xScrollPosition, &m_xScrollLines, &m_xScrollLinesPerPage
+        );
+    }
+
+    void DoAdjustVScrollbar(int winSize, int virtSize)
+    {
+        DoAdjustScrollbar
+        (
+            m_win->m_scrollBar[wxWindow::ScrollDir_Vert],
+            m_yScrollPixelsPerLine, winSize, virtSize,
+            &m_yScrollPosition, &m_yScrollLines, &m_yScrollLinesPerPage
+        );
+    }
+
+    // and this does the same for Scroll()
+    void DoScrollOneDir(int orient,
+                        int pos,
+                        int pixelsPerLine,
+                        int *posOld);
+
+    wxDECLARE_NO_COPY_CLASS(wxScrollHelper);
+};
+
+#endif // _WX_GTK_SCROLLWIN_H_
+