X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/b701f995b1f96c0ff685e61b85d0dc9fab397be6..0a84f928e9a273248a4843f6282507a39212d2d1:/include/wx/sizer.h

diff --git a/include/wx/sizer.h b/include/wx/sizer.h
index 4b88513ecb..f4b0b4ba8a 100644
--- a/include/wx/sizer.h
+++ b/include/wx/sizer.h
@@ -38,7 +38,7 @@ class WXDLLIMPEXP_FWD_CORE wxSizer;
 // wxSizerFlags: flags used for an item in the sizer
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxSizerFlags
+class WXDLLIMPEXP_CORE wxSizerFlags
 {
 public:
     // construct the flags object initialized with the given proportion (0 by
@@ -58,6 +58,15 @@ public:
         return *this;
     }
 
+    wxSizerFlags& Expand()
+    {
+        m_flags |= wxEXPAND;
+        return *this;
+    }
+
+    // notice that Align() replaces the current alignment flags, use specific
+    // methods below such as Top(), Left() &c if you want to set just the
+    // vertical or horizontal alignment
     wxSizerFlags& Align(int alignment) // combination of wxAlignment values
     {
         m_flags &= ~wxALIGN_MASK;
@@ -66,27 +75,48 @@ public:
         return *this;
     }
 
-    wxSizerFlags& Expand()
+    // some shortcuts for Align()
+    wxSizerFlags& Centre() { return Align(wxALIGN_CENTRE); }
+    wxSizerFlags& Center() { return Centre(); }
+
+    wxSizerFlags& Top()
     {
-        m_flags |= wxEXPAND;
+        m_flags &= ~(wxALIGN_BOTTOM | wxALIGN_CENTRE_VERTICAL);
+        return *this;
+    }
+
+    wxSizerFlags& Left()
+    {
+        m_flags &= ~(wxALIGN_RIGHT | wxALIGN_CENTRE_HORIZONTAL);
+        return *this;
+    }
+
+    wxSizerFlags& Right()
+    {
+        m_flags = (m_flags & ~wxALIGN_CENTRE_HORIZONTAL) | wxALIGN_RIGHT;
+        return *this;
+    }
+
+    wxSizerFlags& Bottom()
+    {
+        m_flags = (m_flags & ~wxALIGN_CENTRE_VERTICAL) | wxALIGN_BOTTOM;
         return *this;
     }
 
-    // some shortcuts for Align()
-    wxSizerFlags& Centre() { return Align(wxALIGN_CENTRE); }
-    wxSizerFlags& Center() { return Centre(); }
-    wxSizerFlags& Top() { return Align(wxALIGN_TOP); }
-    wxSizerFlags& Left() { return Align(wxALIGN_LEFT); }
-    wxSizerFlags& Right() { return Align(wxALIGN_RIGHT); }
-    wxSizerFlags& Bottom() { return Align(wxALIGN_BOTTOM); }
 
     // default border size used by Border() below
     static int GetDefaultBorder()
     {
 #if wxUSE_BORDER_BY_DEFAULT
+    #ifdef __WXGTK20__
+        // GNOME HIG says to use 6px as the base unit:
+        // http://library.gnome.org/devel/hig-book/stable/design-window.html.en
+        return 6;
+    #else
         // FIXME: default border size shouldn't be hardcoded and at the very
         //        least they should depend on the current font size
         return 5;
+    #endif
 #else
         return 0;
 #endif
@@ -170,6 +200,13 @@ public:
         return *this;
     }
 
+    // makes the item ignore window's visibility status
+    wxSizerFlags& ReserveSpaceEvenIfHidden()
+    {
+        m_flags |= wxRESERVE_SPACE_EVEN_IF_HIDDEN;
+        return *this;
+    }
+
     // accessors for wxSizer only
     int GetProportion() const { return m_proportion; }
     int GetFlags() const { return m_flags; }
@@ -186,7 +223,7 @@ private:
 // wxSizerSpacer: used by wxSizerItem to represent a spacer
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxSizerSpacer
+class WXDLLIMPEXP_CORE wxSizerSpacer
 {
 public:
     wxSizerSpacer(const wxSize& size) : m_size(size), m_isShown(true) { }
@@ -209,7 +246,7 @@ private:
 // wxSizerItem
 // ----------------------------------------------------------------------------
 
-class WXDLLEXPORT wxSizerItem : public wxObject
+class WXDLLIMPEXP_CORE wxSizerItem : public wxObject
 {
 public:
     // window
@@ -332,10 +369,12 @@ public:
         { return m_kind == Item_Sizer ? m_sizer : NULL; }
     wxSize GetSpacer() const;
 
-    // this function behaves obviously for the windows and spacers but for the
+    // This function behaves obviously for the windows and spacers but for the
     // sizers it returns true if any sizer element is shown and only returns
-    // false if all of them are hidden
+    // false if all of them are hidden. Also, it always returns true if
+    // wxRESERVE_SPACE_EVEN_IF_HIDDEN flag was used.
     bool IsShown() const;
+
     void Show(bool show);
 
     void SetUserData(wxObject* userData)
@@ -345,6 +384,12 @@ public:
     wxPoint GetPosition() const
         { return m_pos; }
 
+    // Called once the first component of an item has been decided. This is
+    // used in algorithms that depend on knowing the size in one direction
+    // before the min size in the other direction can be known.
+    // Returns true if it made use of the information (and min size was changed).
+    bool InformFirstDirection( int direction, int size, int availableOtherDir=-1 );
+
     // these functions delete the current contents of the item if it's a sizer
     // or a spacer but not if it is a window
     void AssignWindow(wxWindow *window)
@@ -426,7 +471,7 @@ protected:
 
 private:
     DECLARE_CLASS(wxSizerItem)
-    DECLARE_NO_COPY_CLASS(wxSizerItem)
+    wxDECLARE_NO_COPY_CLASS(wxSizerItem);
 };
 
 WX_DECLARE_EXPORTED_LIST( wxSizerItem, wxSizerItemList );
@@ -436,7 +481,7 @@ WX_DECLARE_EXPORTED_LIST( wxSizerItem, wxSizerItemList );
 // wxSizer
 //---------------------------------------------------------------------------
 
-class WXDLLEXPORT wxSizer: public wxObject, public wxClientDataContainer
+class WXDLLIMPEXP_CORE wxSizer: public wxObject, public wxClientDataContainer
 {
 public:
     wxSizer() { m_containingWindow = NULL; }
@@ -465,7 +510,7 @@ public:
     wxSizerItem* Add( int width, int height, const wxSizerFlags& flags);
     wxSizerItem* Add( wxSizerItem *item);
 
-    wxSizerItem* AddSpacer(int size);
+    virtual wxSizerItem *AddSpacer(int size);
     wxSizerItem* AddStretchSpacer(int prop = 1);
 
     wxSizerItem* Insert(size_t index,
@@ -496,7 +541,7 @@ public:
     wxSizerItem* Insert(size_t index,
                         int width,
                         int height,
-                        const wxSizerFlags& flags);                        
+                        const wxSizerFlags& flags);
     virtual wxSizerItem* Insert( size_t index, wxSizerItem *item);
 
     wxSizerItem* InsertSpacer(size_t index, int size);
@@ -551,6 +596,11 @@ public:
     virtual void Clear( bool delete_windows = false );
     virtual void DeleteWindows();
 
+    // Inform sizer about the first direction that has been decided (by parent item)
+    // Returns true if it made use of the informtion (and recalculated min size)
+    virtual bool InformFirstDirection( int WXUNUSED(direction), int WXUNUSED(size), int WXUNUSED(availableOtherDir) )
+        { return false; }
+
     void SetMinSize( int width, int height )
         { DoSetMinSize( width, height ); }
     void SetMinSize( const wxSize& size )
@@ -590,17 +640,33 @@ public:
 
     virtual void Layout();
 
+    wxSize ComputeFittingClientSize(wxWindow *window);
+    wxSize ComputeFittingWindowSize(wxWindow *window);
+
     wxSize Fit( wxWindow *window );
     void FitInside( wxWindow *window );
     void SetSizeHints( wxWindow *window );
-    void SetVirtualSizeHints( wxWindow *window );
+#if WXWIN_COMPATIBILITY_2_8
+    // This only calls FitInside() since 2.9
+    wxDEPRECATED( void SetVirtualSizeHints( wxWindow *window ) );
+#endif
 
     wxSizerItemList& GetChildren()
         { return m_children; }
     const wxSizerItemList& GetChildren() const
         { return m_children; }
 
-    void SetDimension( int x, int y, int width, int height );
+    void SetDimension(const wxPoint& pos, const wxSize& size)
+    {
+        m_position = pos;
+        m_size = size;
+        Layout();
+    }
+    void SetDimension(int x, int y, int width, int height)
+        { SetDimension(wxPoint(x, y), wxSize(width, height)); }
+
+    size_t GetItemCount() const { return m_children.GetCount(); }
+    bool IsEmpty() const { return m_children.IsEmpty(); }
 
     wxSizerItem* GetItem( wxWindow *window, bool recursive = false );
     wxSizerItem* GetItem( wxSizer *sizer, bool recursive = false );
@@ -638,8 +704,6 @@ protected:
     // the window this sizer is used in, can be NULL
     wxWindow *m_containingWindow;
 
-    wxSize GetMaxWindowSize( wxWindow *window ) const;
-    wxSize GetMinWindowSize( wxWindow *window );
     wxSize GetMaxClientSize( wxWindow *window ) const;
     wxSize GetMinClientSize( wxWindow *window );
     wxSize VirtualFitSize( wxWindow *window );
@@ -657,17 +721,35 @@ private:
 // wxGridSizer
 //---------------------------------------------------------------------------
 
-class WXDLLEXPORT wxGridSizer: public wxSizer
+class WXDLLIMPEXP_CORE wxGridSizer: public wxSizer
 {
 public:
+    // ctors specifying the number of columns only: number of rows will be
+    // deduced automatically depending on the number of sizer elements
+    wxGridSizer( int cols, int vgap, int hgap );
+    wxGridSizer( int cols, const wxSize& gap = wxSize(0, 0) );
+
+    // ctors specifying the number of rows and columns
     wxGridSizer( int rows, int cols, int vgap, int hgap );
-    wxGridSizer( int cols, int vgap = 0, int hgap = 0 );
+    wxGridSizer( int rows, int cols, const wxSize& gap );
+
+    virtual wxSizerItem *Insert(size_t index, wxSizerItem *item);
 
     virtual void RecalcSizes();
     virtual wxSize CalcMin();
 
-    void SetCols( int cols )    { m_cols = cols; }
-    void SetRows( int rows )    { m_rows = rows; }
+    void SetCols( int cols )
+    {
+        wxASSERT_MSG( cols >= 0, "Number of columns must be non-negative");
+        m_cols = cols;
+    }
+
+    void SetRows( int rows )
+    {
+        wxASSERT_MSG( rows >= 0, "Number of rows must be non-negative");
+        m_rows = rows;
+    }
+
     void SetVGap( int gap )     { m_vgap = gap; }
     void SetHGap( int gap )     { m_hgap = gap; }
     int GetCols() const         { return m_cols; }
@@ -675,17 +757,49 @@ public:
     int GetVGap() const         { return m_vgap; }
     int GetHGap() const         { return m_hgap; }
 
+    int GetEffectiveColsCount() const   { return m_cols ? m_cols : CalcCols(); }
+    int GetEffectiveRowsCount() const   { return m_rows ? m_rows : CalcRows(); }
+
+    // return the number of total items and the number of columns and rows
+    // (for internal use only)
+    int CalcRowsCols(int& rows, int& cols) const;
+
 protected:
+    // the number of rows/columns in the sizer, if 0 then it is determined
+    // dynamically depending on the total number of items
     int    m_rows;
     int    m_cols;
+
+    // gaps between rows and columns
     int    m_vgap;
     int    m_hgap;
 
-    // return the number of total items and the number of columns and rows
-    int CalcRowsCols(int& rows, int& cols) const;
-
     void SetItemBounds( wxSizerItem *item, int x, int y, int w, int h );
 
+    // returns the number of columns/rows needed for the current total number
+    // of children (and the fixed number of rows/columns)
+    int CalcCols() const
+    {
+        wxCHECK_MSG
+        (
+            m_rows, 0,
+            "Can't calculate number of cols if number of rows is not specified"
+        );
+
+        return (m_children.GetCount() + m_rows - 1) / m_rows;
+    }
+
+    int CalcRows() const
+    {
+        wxCHECK_MSG
+        (
+            m_cols, 0,
+            "Can't calculate number of cols if number of rows is not specified"
+        );
+
+        return (m_children.GetCount() + m_cols - 1) / m_cols;
+    }
+
 private:
     DECLARE_CLASS(wxGridSizer)
 };
@@ -694,8 +808,8 @@ private:
 // wxFlexGridSizer
 //---------------------------------------------------------------------------
 
-// the bevaiour for resizing wxFlexGridSizer cells in the "non-flexible"
-// direction
+// values which define the behaviour for resizing wxFlexGridSizer cells in the
+// "non-flexible" direction
 enum wxFlexSizerGrowMode
 {
     // don't resize the cells in non-flexible direction at all
@@ -708,14 +822,20 @@ enum wxFlexSizerGrowMode
     wxFLEX_GROWMODE_ALL
 };
 
-class WXDLLEXPORT wxFlexGridSizer: public wxGridSizer
+class WXDLLIMPEXP_CORE wxFlexGridSizer: public wxGridSizer
 {
 public:
-    // ctors/dtor
+    // ctors specifying the number of columns only: number of rows will be
+    // deduced automatically depending on the number of sizer elements
+    wxFlexGridSizer( int cols, int vgap, int hgap );
+    wxFlexGridSizer( int cols, const wxSize& gap = wxSize(0, 0) );
+
+    // ctors specifying the number of rows and columns
     wxFlexGridSizer( int rows, int cols, int vgap, int hgap );
-    wxFlexGridSizer( int cols, int vgap = 0, int hgap = 0 );
-    virtual ~wxFlexGridSizer();
+    wxFlexGridSizer( int rows, int cols, const wxSize& gap );
 
+    // dtor
+    virtual ~wxFlexGridSizer();
 
     // set the rows/columns which will grow (the others will remain of the
     // constant initial size)
@@ -724,6 +844,8 @@ public:
     void AddGrowableCol( size_t idx, int proportion = 0 );
     void RemoveGrowableCol( size_t idx );
 
+    bool IsRowGrowable( size_t idx );
+    bool IsColGrowable( size_t idx );
 
     // the sizer cells may grow in both directions, not grow at all or only
     // grow in one direction but not the other
@@ -748,6 +870,7 @@ public:
 protected:
     void AdjustForFlexDirection();
     void AdjustForGrowables(const wxSize& sz);
+    void FindWidthsAndHeights(int nrows, int ncols);
 
     // the heights/widths of all rows/columns
     wxArrayInt  m_rowHeights,
@@ -771,24 +894,27 @@ protected:
 
 private:
     DECLARE_CLASS(wxFlexGridSizer)
-    DECLARE_NO_COPY_CLASS(wxFlexGridSizer)
+    wxDECLARE_NO_COPY_CLASS(wxFlexGridSizer);
 };
 
 //---------------------------------------------------------------------------
 // wxBoxSizer
 //---------------------------------------------------------------------------
 
-class WXDLLEXPORT wxBoxSizer: public wxSizer
+class WXDLLIMPEXP_CORE wxBoxSizer: public wxSizer
 {
 public:
     wxBoxSizer(int orient)
     {
         m_orient = orient;
+        m_totalProportion = 0;
 
         wxASSERT_MSG( m_orient == wxHORIZONTAL || m_orient == wxVERTICAL,
-                      _T("invalid value for wxBoxSizer orientation") );
+                      wxT("invalid value for wxBoxSizer orientation") );
     }
 
+    virtual wxSizerItem *AddSpacer(int size);
+
     int GetOrientation() const { return m_orient; }
 
     bool IsVertical() const { return m_orient == wxVERTICAL; }
@@ -802,7 +928,7 @@ public:
 protected:
     // helpers for our code: this returns the component of the given wxSize in
     // the direction of the sizer and in the other direction, respectively
-    int SizeInMajorDir(const wxSize& sz) const
+    int GetSizeInMajorDir(const wxSize& sz) const
     {
         return m_orient == wxHORIZONTAL ? sz.x : sz.y;
     }
@@ -817,7 +943,7 @@ protected:
         return m_orient == wxHORIZONTAL ? pt.x : pt.y;
     }
 
-    int SizeInMinorDir(const wxSize& sz) const
+    int GetSizeInMinorDir(const wxSize& sz) const
     {
         return m_orient == wxHORIZONTAL ? sz.y : sz.x;
     }
@@ -868,7 +994,7 @@ private:
 
 class WXDLLIMPEXP_FWD_CORE wxStaticBox;
 
-class WXDLLEXPORT wxStaticBoxSizer: public wxBoxSizer
+class WXDLLIMPEXP_CORE wxStaticBoxSizer: public wxBoxSizer
 {
 public:
     wxStaticBoxSizer(wxStaticBox *box, int orient);
@@ -893,14 +1019,18 @@ protected:
 
 private:
     DECLARE_CLASS(wxStaticBoxSizer)
-    DECLARE_NO_COPY_CLASS(wxStaticBoxSizer)
+    wxDECLARE_NO_COPY_CLASS(wxStaticBoxSizer);
 };
 
 #endif // wxUSE_STATBOX
 
+//---------------------------------------------------------------------------
+// wxStdDialogButtonSizer
+//---------------------------------------------------------------------------
+
 #if wxUSE_BUTTON
 
-class WXDLLEXPORT wxStdDialogButtonSizer: public wxBoxSizer
+class WXDLLIMPEXP_CORE wxStdDialogButtonSizer: public wxBoxSizer
 {
 public:
     // Constructor just creates a new wxBoxSizer, not much else.
@@ -941,7 +1071,7 @@ protected:
 
 private:
     DECLARE_CLASS(wxStdDialogButtonSizer)
-    DECLARE_NO_COPY_CLASS(wxStdDialogButtonSizer)
+    wxDECLARE_NO_COPY_CLASS(wxStdDialogButtonSizer);
 };
 
 #endif // wxUSE_BUTTON
@@ -969,9 +1099,9 @@ inline void wxSizerItem::SetSpacer(const wxSize& size)
 }
 
 inline void wxSizerItem::SetSpacer(int width, int height)
-{ 
-    DoSetSpacer(wxSize(width, height)); 
-} 
+{
+    DoSetSpacer(wxSize(width, height));
+}
 
 #endif // WXWIN_COMPATIBILITY_2_8