fix GetTextExtent with non-null font argument, fixes #13750

[wxWidgets.git] / interface / wx / gdicmn.h

diff --git a/interface/wx/gdicmn.h b/interface/wx/gdicmn.h
index e8ae5f3451be03a15871363fbf0368b2a2013b0a..c26755c304709e3a35182b7cc656d576d604e5d2 100644 (file)
--- a/interface/wx/gdicmn.h
+++ b/interface/wx/gdicmn.h
@@ -3,7 +3,7 @@
 // Purpose:     interface of wxRealPoint
 // Author:      wxWidgets team
 // RCS-ID:      $Id$
 // Purpose:     interface of wxRealPoint
 // Author:      wxWidgets team
 // RCS-ID:      $Id$

-// Licence:     wxWindows license
+// Licence:     wxWindows licence

 /////////////////////////////////////////////////////////////////////////////
 
 
 /////////////////////////////////////////////////////////////////////////////
 
 


@@ -24,8 +24,10 @@ enum wxBitmapType
     wxBITMAP_TYPE_XBM_DATA,
     wxBITMAP_TYPE_XPM,
     wxBITMAP_TYPE_XPM_DATA,
     wxBITMAP_TYPE_XBM_DATA,
     wxBITMAP_TYPE_XPM,
     wxBITMAP_TYPE_XPM_DATA,

-    wxBITMAP_TYPE_TIF,
-    wxBITMAP_TYPE_TIF_RESOURCE,
+    wxBITMAP_TYPE_TIFF,
+    wxBITMAP_TYPE_TIF = wxBITMAP_TYPE_TIFF,
+    wxBITMAP_TYPE_TIFF_RESOURCE,
+    wxBITMAP_TYPE_TIF_RESOURCE = wxBITMAP_TYPE_TIFF_RESOURCE,

     wxBITMAP_TYPE_GIF,
     wxBITMAP_TYPE_GIF_RESOURCE,
     wxBITMAP_TYPE_PNG,
     wxBITMAP_TYPE_GIF,
     wxBITMAP_TYPE_GIF_RESOURCE,
     wxBITMAP_TYPE_PNG,


@@ -58,7 +60,14 @@ enum wxPolygonFillMode
 };
 
 /**
 };
 
 /**

-    Standard cursors. See wxCursor.
+    Standard cursors.
+
+    Notice that under wxMSW some of these cursors are defined in @c wx.rc file
+    and not by the system itself so you should include this file from your own
+    resource file (possibly creating a trivial resource file just containing a
+    single include line if you don't need it otherwise) to be able to use them.
+
+    See wxCursor.

 */
 enum wxStockCursor
 {
 */
 enum wxStockCursor
 {


@@ -106,10 +115,10 @@ enum wxStockCursor
 
     A wxRealPoint is a useful data structure for graphics operations.
 
 
     A wxRealPoint is a useful data structure for graphics operations.
 

-    It contains floating point @e x and @e y members. 
+    It contains floating point @e x and @e y members.

     See wxPoint for an integer version.
 
     See wxPoint for an integer version.
 

-    Note that the coordinates stored inside a wxRealPoint object may be negative 
+    Note that the coordinates stored inside a wxRealPoint object may be negative

     and that wxRealPoint functions do not perform any check against negative values.
 
     @library{wxcore}
     and that wxRealPoint functions do not perform any check against negative values.
 
     @library{wxcore}


@@ -130,6 +139,48 @@ public:
     */
     wxRealPoint(double x, double y);
 
     */
     wxRealPoint(double x, double y);
 

+    /**
+        Converts the given wxPoint (with integer coordinates) to a wxRealPoint.
+    */
+    wxRealPoint(const wxPoint& pt);
+
+    /**
+        @name Miscellaneous operators
+
+        Note that these operators are documented as class members
+        (to make them easier to find) but, as their prototype shows,
+        they are implemented as global operators; note that this is
+        transparent to the user but it helps to understand why the
+        following functions are documented to take the wxPoint they
+        operate on as an explicit argument.
+    */
+    //@{
+    wxRealPoint& operator=(const wxRealPoint& pt);
+
+    bool operator ==(const wxRealPoint& p1, const wxRealPoint& p2);
+    bool operator !=(const wxRealPoint& p1, const wxRealPoint& p2);
+
+    wxRealPoint operator +(const wxRealPoint& p1, const wxRealPoint& p2);
+    wxRealPoint operator -(const wxRealPoint& p1, const wxRealPoint& p2);
+
+    wxRealPoint& operator +=(const wxRealPoint& pt);
+    wxRealPoint& operator -=(const wxRealPoint& pt);
+
+    wxRealPoint operator +(const wxRealPoint& pt, const wxSize& sz);
+    wxRealPoint operator -(const wxRealPoint& pt, const wxSize& sz);
+    wxRealPoint operator +(const wxSize& sz, const wxRealPoint& pt);
+    wxRealPoint operator -(const wxSize& sz, const wxRealPoint& pt);
+
+    wxRealPoint& operator +=(const wxSize& sz);
+    wxRealPoint& operator -=(const wxSize& sz);
+
+    wxSize operator /(const wxRealPoint& sz, int factor);
+    wxSize operator *(const wxRealPoint& sz, int factor);
+    wxSize operator *(int factor, const wxSize& sz);
+    wxSize& operator /=(int factor);
+    wxSize& operator *=(int factor);
+    //@}
+

     /**
         X coordinate of this point.
     */
     /**
         X coordinate of this point.
     */


@@ -148,8 +199,8 @@ public:
 
     A class for manipulating rectangles.
 
 
     A class for manipulating rectangles.
 

-    Note that the x, y coordinates and the width and height stored inside a wxRect 
-    object may be negative and that wxRect functions do not perform any check against 
+    Note that the x, y coordinates and the width and height stored inside a wxRect
+    object may be negative and that wxRect functions do not perform any check against

     negative values.
 
     @library{wxcore}
     negative values.
 
     @library{wxcore}


@@ -217,10 +268,10 @@ public:
         This method is the opposite from Inflate(): Deflate(a, b) is equivalent
         to Inflate(-a, -b). Please refer to Inflate() for full description.
     */
         This method is the opposite from Inflate(): Deflate(a, b) is equivalent
         to Inflate(-a, -b). Please refer to Inflate() for full description.
     */

-    void Deflate(wxCoord dx, wxCoord dy);
-    void Deflate(const wxSize& diff);
-    void Deflate(wxCoord diff);
-    wxRect Deflate(wxCoord dx, wxCoord dy) const;
+    wxRect& Deflate(wxCoord dx, wxCoord dy);
+    wxRect& Deflate(const wxSize& diff);
+    wxRect& Deflate(wxCoord diff);
+    wxRect  Deflate(wxCoord dx, wxCoord dy) const;

     //@}
 
     /**
     //@}
 
     /**


@@ -302,7 +353,7 @@ public:
 
         The left border is moved farther left and the right border is moved
         farther right by @a dx. The upper border is moved farther up and the
 
         The left border is moved farther left and the right border is moved
         farther right by @a dx. The upper border is moved farther up and the

-        bottom border is moved farther down by @a dy. (Note the the width and
+        bottom border is moved farther down by @a dy. (Note that the width and

         height of the rectangle thus change by 2*dx and 2*dy, respectively.) If
         one or both of @a dx and @a dy are negative, the opposite happens: the
         rectangle size decreases in the respective direction.
         height of the rectangle thus change by 2*dx and 2*dy, respectively.) If
         one or both of @a dx and @a dy are negative, the opposite happens: the
         rectangle size decreases in the respective direction.


@@ -325,9 +376,9 @@ public:
 
         @see Deflate()
     */
 
         @see Deflate()
     */

-    void Inflate(wxCoord dx, wxCoord dy);
-    void Inflate(const wxSize& diff);
-    void Inflate(wxCoord diff);
+    wxRect& Inflate(wxCoord dx, wxCoord dy);
+    wxRect& Inflate(const wxSize& diff);
+    wxRect& Inflate(wxCoord diff);

     wxRect Inflate(wxCoord dx, wxCoord dy) const;
     //@}
 
     wxRect Inflate(wxCoord dx, wxCoord dy) const;
     //@}
 


@@ -462,7 +513,7 @@ public:
 
     A wxPoint is a useful data structure for graphics operations.
 
 
     A wxPoint is a useful data structure for graphics operations.
 

-    It contains integer @e x and @e y members. 
+    It contains integer @e x and @e y members.

     See wxRealPoint for a floating point version.
 
     Note that the width and height stored inside a wxPoint object may be negative
     See wxRealPoint for a floating point version.
 
     Note that the width and height stored inside a wxPoint object may be negative


@@ -485,14 +536,27 @@ public:
         Initializes the internal x and y coordinates to zero.
     */
     wxPoint();
         Initializes the internal x and y coordinates to zero.
     */
     wxPoint();

-    
+

     /**
         Initializes the point object with the given @a x and @a y coordinates.
     */
     wxPoint(int x, int y);
 
     /**
         Initializes the point object with the given @a x and @a y coordinates.
     */
     wxPoint(int x, int y);
 

+    /**
+        Converts the given wxRealPoint (with floating point coordinates) to a
+        wxPoint instance.
+    */
+    wxPoint(const wxRealPoint& pt);
+

     /**
         @name Miscellaneous operators
     /**
         @name Miscellaneous operators

+
+        Note that these operators are documented as class members
+        (to make them easier to find) but, as their prototype shows,
+        they are implemented as global operators; note that this is
+        transparent to the user but it helps to understand why the
+        following functions are documented to take the wxPoint they
+        operate on as an explicit argument.

     */
     //@{
     wxPoint& operator=(const wxPoint& pt);
     */
     //@{
     wxPoint& operator=(const wxPoint& pt);


@@ -513,8 +577,57 @@ public:
 
     wxPoint& operator +=(const wxSize& sz);
     wxPoint& operator -=(const wxSize& sz);
 
     wxPoint& operator +=(const wxSize& sz);
     wxPoint& operator -=(const wxSize& sz);

+
+    wxSize operator /(const wxPoint& sz, int factor);
+    wxSize operator *(const wxPoint& sz, int factor);
+    wxSize operator *(int factor, const wxSize& sz);
+    wxSize& operator /=(int factor);
+    wxSize& operator *=(int factor);

     //@}
     //@}

-    
+
+
+    /**
+        @name Defaults handling.
+
+        Test for and set non-specified wxPoint components.
+
+        Although a wxPoint is always initialized to (0, 0), wxWidgets commonly
+        uses wxDefaultCoord (defined as @c -1) to indicate that a point hasn't
+        been initialized or specified. In particular, ::wxDefaultPosition is
+        used in many places with this meaning.
+     */
+    //@{
+
+    /**
+        Returns @true if neither of the point components is equal to
+        wxDefaultCoord.
+
+        This method is typically used before calling SetDefaults().
+
+        @since 2.9.2
+    */
+    bool IsFullySpecified() const;
+
+    /**
+        Combine this object with another one replacing the uninitialized
+        values.
+
+        It is typically used like this:
+
+        @code
+        if ( !pos.IsFullySpecified() )
+        {
+            pos.SetDefaults(GetDefaultPosition());
+        }
+        @endcode
+
+        @see IsFullySpecified()
+
+        @since 2.9.2
+    */
+    void SetDefaults(const wxPoint& pt);
+    //@}
+

     /**
         x member.
     */
     /**
         x member.
     */


@@ -527,9 +640,9 @@ public:
 };
 
 /**
 };
 
 /**

-    Global istance of a wxPoint initialized with values (-1,-1).
+    Global instance of a wxPoint initialized with values (-1,-1).

 */
 */

-wxPoint wxDefaultPosition;
+const wxPoint wxDefaultPosition;

 
 
 /**
 
 
 /**


@@ -656,12 +769,18 @@ public:
 };
 
 
 };
 
 

+/**
+    Global instance of a wxColourDatabase.
+*/
+wxColourDatabase* wxTheColourDatabase;
+
+

 /**
     @class wxSize
 
 /**
     @class wxSize
 

-    A wxSize is a useful data structure for graphics operations. 
+    A wxSize is a useful data structure for graphics operations.

     It simply contains integer @e width and @e height members.
     It simply contains integer @e width and @e height members.

-    
+

     Note that the width and height stored inside a wxSize object may be negative
     and that wxSize functions do not perform any check against negative values
     (this is used to e.g. store the special -1 value in ::wxDefaultSize instance).
     Note that the width and height stored inside a wxSize object may be negative
     and that wxSize functions do not perform any check against negative values
     (this is used to e.g. store the special -1 value in ::wxDefaultSize instance).


@@ -692,7 +811,7 @@ public:
         Initializes this size object with zero width and height.
     */
     wxSize();
         Initializes this size object with zero width and height.
     */
     wxSize();

-    
+

     /**
         Initializes this size object with the given @a width and @a height.
     */
     /**
         Initializes this size object with the given @a width and @a height.
     */


@@ -704,6 +823,7 @@ public:
 
         @see IncBy()
     */
 
         @see IncBy()
     */

+    void DecBy(const wxPoint& pt);

     void DecBy(const wxSize& size);
     void DecBy(int dx, int dy);
     void DecBy(int d);
     void DecBy(const wxSize& size);
     void DecBy(int dx, int dy);
     void DecBy(int d);


@@ -733,6 +853,7 @@ public:
 
         @see DecBy()
     */
 
         @see DecBy()
     */

+    void IncBy(const wxPoint& pt);

     void IncBy(const wxSize& size);
     void IncBy(int dx, int dy);
     void IncBy(int d);
     void IncBy(const wxSize& size);
     void IncBy(int dx, int dy);
     void IncBy(int d);


@@ -796,9 +917,16 @@ public:
     */
     void SetWidth(int width);
 
     */
     void SetWidth(int width);
 

-    
+

     /**
         @name Miscellaneous operators
     /**
         @name Miscellaneous operators

+
+        Note that these operators are documented as class members
+        (to make them easier to find) but, as their prototype shows,
+        they are implemented as global operators; note that this is
+        transparent to the user but it helps to understand why the
+        following functions are documented to take the wxSize they
+        operate on as an explicit argument.

     */
     //@{
     wxSize& operator=(const wxSize& sz);
     */
     //@{
     wxSize& operator=(const wxSize& sz);


@@ -822,7 +950,7 @@ public:
 /**
     Global instance of a wxSize object initialized to (-1,-1).
 */
 /**
     Global instance of a wxSize object initialized to (-1,-1).
 */

-wxSize wxDefaultSize;
+const wxSize wxDefaultSize;