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186 lines
6.4 KiB
C++
186 lines
6.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////
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// Name: wx/generic/headerctrlg.h
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// Purpose: Generic wxHeaderCtrl implementation
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// Author: Vadim Zeitlin
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// Created: 2008-12-01
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// Copyright: (c) 2008 Vadim Zeitlin <vadim@wxwidgets.org>
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// Licence: wxWindows licence
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///////////////////////////////////////////////////////////////////////////////
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#ifndef _WX_GENERIC_HEADERCTRLG_H_
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#define _WX_GENERIC_HEADERCTRLG_H_
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#include "wx/event.h"
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#include "wx/vector.h"
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#include "wx/overlay.h"
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// ----------------------------------------------------------------------------
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// wxHeaderCtrl
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// ----------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxHeaderCtrl : public wxHeaderCtrlBase
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{
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public:
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wxHeaderCtrl()
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{
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Init();
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}
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wxHeaderCtrl(wxWindow *parent,
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wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxHD_DEFAULT_STYLE,
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const wxString& name = wxASCII_STR(wxHeaderCtrlNameStr))
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{
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Init();
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Create(parent, id, pos, size, style, name);
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}
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bool Create(wxWindow *parent,
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wxWindowID id = wxID_ANY,
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const wxPoint& pos = wxDefaultPosition,
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const wxSize& size = wxDefaultSize,
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long style = wxHD_DEFAULT_STYLE,
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const wxString& name = wxASCII_STR(wxHeaderCtrlNameStr));
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virtual ~wxHeaderCtrl();
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protected:
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virtual wxSize DoGetBestSize() const wxOVERRIDE;
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private:
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// implement base class pure virtuals
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virtual void DoSetCount(unsigned int count) wxOVERRIDE;
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virtual unsigned int DoGetCount() const wxOVERRIDE;
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virtual void DoUpdate(unsigned int idx) wxOVERRIDE;
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virtual void DoScrollHorz(int dx) wxOVERRIDE;
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virtual void DoSetColumnsOrder(const wxArrayInt& order) wxOVERRIDE;
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virtual wxArrayInt DoGetColumnsOrder() const wxOVERRIDE;
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// common part of all ctors
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void Init();
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// event handlers
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void OnPaint(wxPaintEvent& event);
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void OnMouse(wxMouseEvent& event);
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void OnKeyDown(wxKeyEvent& event);
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void OnCaptureLost(wxMouseCaptureLostEvent& event);
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// move the column with given idx at given position (this doesn't generate
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// any events but does refresh the display)
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void DoMoveCol(unsigned int idx, unsigned int pos);
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// return the horizontal start position of the given column in physical
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// coordinates
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int GetColStart(unsigned int idx) const;
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// and the end position
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int GetColEnd(unsigned int idx) const;
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// refresh the given column [only]; idx must be valid
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void RefreshCol(unsigned int idx);
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// refresh the given column if idx is valid
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void RefreshColIfNotNone(unsigned int idx);
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// refresh all the controls starting from (and including) the given one
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void RefreshColsAfter(unsigned int idx);
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// return the column at the given position or -1 if it is beyond the
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// rightmost column and put true into onSeparator output parameter if the
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// position is near the divider at the right end of this column (notice
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// that this means that we return column 0 even if the position is over
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// column 1 but close enough to the divider separating it from column 0)
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unsigned int FindColumnAtPoint(int x, bool *onSeparator = NULL) const;
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// return the result of FindColumnAtPoint() if it is a valid column,
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// otherwise the index of the last (rightmost) displayed column
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unsigned int FindColumnClosestToPoint(int xPhysical) const;
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// return true if a drag resizing operation is currently in progress
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bool IsResizing() const;
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// return true if a drag reordering operation is currently in progress
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bool IsReordering() const;
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// return true if any drag operation is currently in progress
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bool IsDragging() const { return IsResizing() || IsReordering(); }
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// end any drag operation currently in progress (resizing or reordering)
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void EndDragging();
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// cancel the drag operation currently in progress and generate an event
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// about it
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void CancelDragging();
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// start (if m_colBeingResized is -1) or continue resizing the column
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//
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// this generates wxEVT_HEADER_BEGIN_RESIZE/RESIZING events and can
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// cancel the operation if the user handler decides so
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void StartOrContinueResizing(unsigned int col, int xPhysical);
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// end the resizing operation currently in progress and generate an event
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// about it with its cancelled flag set if xPhysical is -1
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void EndResizing(int xPhysical);
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// same functions as above but for column moving/reordering instead of
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// resizing
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void StartReordering(unsigned int col, int xPhysical);
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// returns true if we did drag the column somewhere else or false if we
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// didn't really move it -- in this case we consider that no reordering
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// took place and that a normal column click event should be generated
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bool EndReordering(int xPhysical);
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// constrain the given position to be larger than the start position of the
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// given column plus its minimal width and return the effective width
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int ConstrainByMinWidth(unsigned int col, int& xPhysical);
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// update the information displayed while a column is being moved around
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void UpdateReorderingMarker(int xPhysical);
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// clear any overlaid markers
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void ClearMarkers();
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// number of columns in the control currently
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unsigned int m_numColumns;
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// index of the column under mouse or -1 if none
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unsigned int m_hover;
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// the column being resized or -1 if there is no resizing operation in
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// progress
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unsigned int m_colBeingResized;
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// the column being moved or -1 if there is no reordering operation in
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// progress
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unsigned int m_colBeingReordered;
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// the distance from the start of m_colBeingReordered and the mouse
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// position when the user started to drag it
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int m_dragOffset;
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// the horizontal scroll offset
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int m_scrollOffset;
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// the overlay display used during the dragging operations
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wxOverlay m_overlay;
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// the indices of the column appearing at the given position on the display
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// (its size is always m_numColumns)
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wxArrayInt m_colIndices;
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bool m_wasSeparatorDClick;
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wxDECLARE_EVENT_TABLE();
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wxDECLARE_NO_COPY_CLASS(wxHeaderCtrl);
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};
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#endif // _WX_GENERIC_HEADERCTRLG_H_
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