fix wxOS2 build where OpenGL headers are available but there's no wxGlCanvas implemen...

[wxWidgets.git] / include / wx / generic / headerctrlg.h

diff --git a/include/wx/generic/headerctrlg.h b/include/wx/generic/headerctrlg.h
index 7c86e97730d2a9c50790789e56b5621bd6320a32..127f798c407a54d5e1fe2d3a828290c060ff3385 100644 (file)
--- a/include/wx/generic/headerctrlg.h
+++ b/include/wx/generic/headerctrlg.h
@@ -13,6 +13,7 @@
 
 #include "wx/event.h"
 #include "wx/vector.h"
+#include "wx/overlay.h"
 
 // ----------------------------------------------------------------------------
 // wxHeaderCtrl
@@ -64,8 +65,11 @@ private:
     // event handlers
     void OnPaint(wxPaintEvent& event);
     void OnMouse(wxMouseEvent& event);
+    void OnKeyDown(wxKeyEvent& event);
+    void OnCaptureLost(wxMouseCaptureLostEvent& event);
 
-    // return the horizontal start position of the given column
+    // return the horizontal start position of the given column in physical
+    // coordinates
     int GetColStart(unsigned int idx) const;
 
     // refresh the given column [only]; idx must be valid
@@ -84,6 +88,30 @@ private:
     // column 1 but close enough to the divider separating it from column 0)
     int FindColumnAtPos(int x, bool& onSeparator) const;
 
+    // return true if a drag resizing operation is currently in progress
+    bool IsResizing() const;
+
+    // end any drag operation currently in progress (resizing or reordering)
+    void EndDragging();
+
+    // start (if m_colBeingResized is -1) or continue resizing the column
+    //
+    // this generates wxEVT_COMMAND_HEADER_BEGIN_RESIZE/RESIZING events and can
+    // cancel the operation if the user handler decides so
+    void StartOrContinueResizing(unsigned int col, int xPhysical);
+
+    // end the resizing operation currently in progress and generate an event
+    // about it with its cancelled flag set if xPhysical is -1
+    void EndResizing(int xPhysical);
+
+    // constrain the given position to be larger than the start position of the
+    // given column plus its minimal width and return the effective width
+    int ConstrainByMinWidth(unsigned int col, int& xPhysical);
+
+    // update the current position of the resizing marker if xPhysical is a
+    // valid physical coordinate value or remove it entirely if it is -1
+    void UpdateResizingMarker(int xPhysical);
+
 
     // number of columns in the control currently
     unsigned int m_numColumns;
@@ -91,9 +119,16 @@ private:
     // index of the column under mouse or -1 if none
     unsigned int m_hover;
 
+    // the column being resized or -1 if there is no resizing operation in
+    // progress
+    unsigned int m_colBeingResized;
+
     // the horizontal scroll offset
     int m_scrollOffset;
 
+    // the overlay display used during the dragging operations
+    wxOverlay m_overlay;
+
 
     DECLARE_EVENT_TABLE()
     DECLARE_NO_COPY_CLASS(wxHeaderCtrl)