mirror of https://github.com/PCSX2/pcsx2.git
342 lines
12 KiB
C
342 lines
12 KiB
C
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/////////////////////////////////////////////////////////////////////////////
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// Name: wx/gbsizer.h
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// Purpose: wxGridBagSizer: A sizer that can lay out items in a grid,
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// with items at specified cells, and with the option of row
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// and/or column spanning
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//
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// Author: Robin Dunn
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// Created: 03-Nov-2003
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// Copyright: (c) Robin Dunn
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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#ifndef __WXGBSIZER_H__
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#define __WXGBSIZER_H__
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#include "wx/sizer.h"
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//---------------------------------------------------------------------------
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// Classes to represent a position in the grid and a size of an item in the
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// grid, IOW, the number of rows and columns it occupies. I chose to use these
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// instead of wxPoint and wxSize because they are (x,y) and usually pixel
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// oriented while grids and tables are usually thought of as (row,col) so some
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// confusion would definitely result in using wxPoint...
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//
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// NOTE: This should probably be refactored to a common RowCol data type which
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// is used for this and also for wxGridCellCoords.
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//---------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxGBPosition
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{
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public:
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wxGBPosition() : m_row(0), m_col(0) {}
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wxGBPosition(int row, int col) : m_row(row), m_col(col) {}
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// default copy ctor and assignment operator are okay.
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int GetRow() const { return m_row; }
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int GetCol() const { return m_col; }
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void SetRow(int row) { m_row = row; }
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void SetCol(int col) { m_col = col; }
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bool operator==(const wxGBPosition& p) const { return m_row == p.m_row && m_col == p.m_col; }
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bool operator!=(const wxGBPosition& p) const { return !(*this == p); }
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private:
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int m_row;
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int m_col;
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};
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class WXDLLIMPEXP_CORE wxGBSpan
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{
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public:
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wxGBSpan() { Init(); }
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wxGBSpan(int rowspan, int colspan)
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{
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// Initialize the members to valid values as not doing it may result in
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// infinite loop in wxGBSizer code if the user passed 0 for any of
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// them, see #12934.
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Init();
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SetRowspan(rowspan);
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SetColspan(colspan);
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}
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// default copy ctor and assignment operator are okay.
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// Factor constructor creating an invalid wxGBSpan: this is mostly supposed
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// to be used as return value for functions returning wxGBSpan in case of
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// errors.
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static wxGBSpan Invalid()
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{
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return wxGBSpan(NULL);
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}
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int GetRowspan() const { return m_rowspan; }
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int GetColspan() const { return m_colspan; }
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void SetRowspan(int rowspan)
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{
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wxCHECK_RET( rowspan > 0, "Row span should be strictly positive" );
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m_rowspan = rowspan;
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}
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void SetColspan(int colspan)
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{
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wxCHECK_RET( colspan > 0, "Column span should be strictly positive" );
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m_colspan = colspan;
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}
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bool operator==(const wxGBSpan& o) const { return m_rowspan == o.m_rowspan && m_colspan == o.m_colspan; }
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bool operator!=(const wxGBSpan& o) const { return !(*this == o); }
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private:
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// This private ctor is used by Invalid() only.
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wxGBSpan(struct InvalidCtorTag*)
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{
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m_rowspan =
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m_colspan = -1;
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}
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void Init()
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{
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m_rowspan =
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m_colspan = 1;
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}
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int m_rowspan;
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int m_colspan;
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};
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extern WXDLLIMPEXP_DATA_CORE(const wxGBSpan) wxDefaultSpan;
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//---------------------------------------------------------------------------
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// wxGBSizerItem
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//---------------------------------------------------------------------------
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class WXDLLIMPEXP_FWD_CORE wxGridBagSizer;
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class WXDLLIMPEXP_CORE wxGBSizerItem : public wxSizerItem
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{
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public:
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// spacer
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wxGBSizerItem( int width,
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int height,
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const wxGBPosition& pos,
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const wxGBSpan& span=wxDefaultSpan,
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int flag=0,
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int border=0,
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wxObject* userData=NULL);
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// window
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wxGBSizerItem( wxWindow *window,
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const wxGBPosition& pos,
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const wxGBSpan& span=wxDefaultSpan,
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int flag=0,
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int border=0,
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wxObject* userData=NULL );
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// subsizer
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wxGBSizerItem( wxSizer *sizer,
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const wxGBPosition& pos,
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const wxGBSpan& span=wxDefaultSpan,
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int flag=0,
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int border=0,
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wxObject* userData=NULL );
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// default ctor
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wxGBSizerItem();
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// Get the grid position of the item
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wxGBPosition GetPos() const { return m_pos; }
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void GetPos(int& row, int& col) const;
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// Get the row and column spanning of the item
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wxGBSpan GetSpan() const { return m_span; }
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void GetSpan(int& rowspan, int& colspan) const;
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// If the item is already a member of a sizer then first ensure that there
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// is no other item that would intersect with this one at the new
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// position, then set the new position. Returns true if the change is
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// successful and after the next Layout the item will be moved.
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bool SetPos( const wxGBPosition& pos );
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// If the item is already a member of a sizer then first ensure that there
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// is no other item that would intersect with this one with its new
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// spanning size, then set the new spanning. Returns true if the change
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// is successful and after the next Layout the item will be resized.
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bool SetSpan( const wxGBSpan& span );
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// Returns true if this item and the other item intersect
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bool Intersects(const wxGBSizerItem& other);
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// Returns true if the given pos/span would intersect with this item.
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bool Intersects(const wxGBPosition& pos, const wxGBSpan& span);
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// Get the row and column of the endpoint of this item
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void GetEndPos(int& row, int& col);
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wxGridBagSizer* GetGBSizer() const { return m_gbsizer; }
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void SetGBSizer(wxGridBagSizer* sizer) { m_gbsizer = sizer; }
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protected:
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wxGBPosition m_pos;
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wxGBSpan m_span;
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wxGridBagSizer* m_gbsizer; // so SetPos/SetSpan can check for intersects
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private:
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DECLARE_DYNAMIC_CLASS(wxGBSizerItem)
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wxDECLARE_NO_COPY_CLASS(wxGBSizerItem);
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};
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//---------------------------------------------------------------------------
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// wxGridBagSizer
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//---------------------------------------------------------------------------
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class WXDLLIMPEXP_CORE wxGridBagSizer : public wxFlexGridSizer
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{
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public:
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wxGridBagSizer(int vgap = 0, int hgap = 0 );
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// The Add methods return true if the item was successfully placed at the
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// given position, false if something was already there.
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wxSizerItem* Add( wxWindow *window,
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const wxGBPosition& pos,
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const wxGBSpan& span = wxDefaultSpan,
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int flag = 0,
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int border = 0,
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wxObject* userData = NULL );
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wxSizerItem* Add( wxSizer *sizer,
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const wxGBPosition& pos,
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const wxGBSpan& span = wxDefaultSpan,
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int flag = 0,
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int border = 0,
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wxObject* userData = NULL );
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wxSizerItem* Add( int width,
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int height,
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const wxGBPosition& pos,
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const wxGBSpan& span = wxDefaultSpan,
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int flag = 0,
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int border = 0,
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wxObject* userData = NULL );
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wxSizerItem* Add( wxGBSizerItem *item );
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// Get/Set the size used for cells in the grid with no item.
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wxSize GetEmptyCellSize() const { return m_emptyCellSize; }
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void SetEmptyCellSize(const wxSize& sz) { m_emptyCellSize = sz; }
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// Get the size of the specified cell, including hgap and vgap. Only
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// valid after a Layout.
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wxSize GetCellSize(int row, int col) const;
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// Get the grid position of the specified item (non-recursive)
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wxGBPosition GetItemPosition(wxWindow *window);
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wxGBPosition GetItemPosition(wxSizer *sizer);
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wxGBPosition GetItemPosition(size_t index);
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// Set the grid position of the specified item. Returns true on success.
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// If the move is not allowed (because an item is already there) then
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// false is returned. (non-recursive)
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bool SetItemPosition(wxWindow *window, const wxGBPosition& pos);
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bool SetItemPosition(wxSizer *sizer, const wxGBPosition& pos);
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bool SetItemPosition(size_t index, const wxGBPosition& pos);
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// Get the row/col spanning of the specified item (non-recursive)
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wxGBSpan GetItemSpan(wxWindow *window);
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wxGBSpan GetItemSpan(wxSizer *sizer);
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wxGBSpan GetItemSpan(size_t index);
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// Set the row/col spanning of the specified item. Returns true on
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// success. If the move is not allowed (because an item is already there)
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// then false is returned. (non-recursive)
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bool SetItemSpan(wxWindow *window, const wxGBSpan& span);
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bool SetItemSpan(wxSizer *sizer, const wxGBSpan& span);
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bool SetItemSpan(size_t index, const wxGBSpan& span);
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// Find the sizer item for the given window or subsizer, returns NULL if
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// not found. (non-recursive)
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wxGBSizerItem* FindItem(wxWindow* window);
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wxGBSizerItem* FindItem(wxSizer* sizer);
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// Return the sizer item for the given grid cell, or NULL if there is no
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// item at that position. (non-recursive)
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wxGBSizerItem* FindItemAtPosition(const wxGBPosition& pos);
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// Return the sizer item located at the point given in pt, or NULL if
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// there is no item at that point. The (x,y) coordinates in pt correspond
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// to the client coordinates of the window using the sizer for
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// layout. (non-recursive)
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wxGBSizerItem* FindItemAtPoint(const wxPoint& pt);
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// Return the sizer item that has a matching user data (it only compares
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// pointer values) or NULL if not found. (non-recursive)
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wxGBSizerItem* FindItemWithData(const wxObject* userData);
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// These are what make the sizer do size calculations and layout
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virtual void RecalcSizes();
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virtual wxSize CalcMin();
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// Look at all items and see if any intersect (or would overlap) the given
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// item. Returns true if so, false if there would be no overlap. If an
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// excludeItem is given then it will not be checked for intersection, for
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// example it may be the item we are checking the position of.
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bool CheckForIntersection(wxGBSizerItem* item, wxGBSizerItem* excludeItem = NULL);
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bool CheckForIntersection(const wxGBPosition& pos, const wxGBSpan& span, wxGBSizerItem* excludeItem = NULL);
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// The Add base class virtuals should not be used with this class, but
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// we'll try to make them automatically select a location for the item
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// anyway.
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virtual wxSizerItem* Add( wxWindow *window, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Add( wxSizer *sizer, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Add( int width, int height, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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// The Insert and Prepend base class virtuals that are not appropriate for
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// this class and should not be used. Their implementation in this class
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// simply fails.
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virtual wxSizerItem* Add( wxSizerItem *item );
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virtual wxSizerItem* Insert( size_t index, wxWindow *window, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Insert( size_t index, wxSizer *sizer, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Insert( size_t index, int width, int height, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Insert( size_t index, wxSizerItem *item );
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virtual wxSizerItem* Prepend( wxWindow *window, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Prepend( wxSizer *sizer, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Prepend( int width, int height, int proportion = 0, int flag = 0, int border = 0, wxObject* userData = NULL );
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virtual wxSizerItem* Prepend( wxSizerItem *item );
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protected:
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wxGBPosition FindEmptyCell();
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void AdjustForOverflow();
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wxSize m_emptyCellSize;
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private:
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DECLARE_CLASS(wxGridBagSizer)
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wxDECLARE_NO_COPY_CLASS(wxGridBagSizer);
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};
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//---------------------------------------------------------------------------
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#endif
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