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DnD fixes

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Image fixes
  Clipboard API


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@952 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Robert Roebling
1998-11-02 14:12:29 +00:00
parent 8c65b36ad7
commit dc86cb34c3
17 changed files with 453 additions and 174 deletions
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95
include/wx/gtk/dnd.h
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@@ -43,46 +43,14 @@ class wxDropSource;
class wxDataObject: public wxObject
{
public:
// all data formats (values are the same as in windows.h, do not change!)
enum StdFormat
{
Invalid,
Text,
Bitmap,
MetafilePict,
Sylk,
Dif,
Tiff,
OemText,
Dib,
Palette,
Pendata,
Riff,
Wave,
UnicodeText,
EnhMetafile,
Hdrop,
Locale,
Max
};
// function to return symbolic name of clipboard format (debug messages)
static const char *GetFormatName(wxDataFormat format);
// ctor & dtor
wxDataObject() {};
~wxDataObject() {};
// pure virtuals to override
// get the best suited format for our data
virtual wxDataFormat GetPreferredFormat() const = 0;
// decide if we support this format (should be one of values of
// StdFormat enumerations or a user-defined format)
virtual bool IsSupportedFormat(wxDataFormat format) const = 0;
// get the (total) size of data
virtual bool IsSupportedFormat( wxDataFormat format ) const = 0;
virtual size_t GetDataSize() const = 0;
// copy raw data to provided pointer
virtual void GetDataHere(void *pBuf) const = 0;
virtual void GetDataHere( void *data ) const = 0;
};
@@ -93,20 +61,22 @@ public:
class wxTextDataObject : public wxDataObject
{
public:
// ctors
wxTextDataObject() { }
wxTextDataObject(const wxString& strText) : m_strText(strText) { }
void Init(const wxString& strText) { m_strText = strText; }
// implement base class pure virtuals
virtual wxDataFormat GetPreferredFormat() const
{ return wxDF_TEXT; }
virtual bool IsSupportedFormat(wxDataFormat format) const
{ return format == wxDF_TEXT; }
virtual size_t GetDataSize() const
{ return m_strText.Len() + 1; } // +1 for trailing '\0'of course
virtual void GetDataHere(void *pBuf) const
{ memcpy(pBuf, m_strText.c_str(), GetDataSize()); }
{ return m_strText.Len() + 1; } // +1 for trailing '\0'
virtual void GetDataHere( void *data ) const
{ memcpy(data, m_strText.c_str(), GetDataSize()); }
private:
wxString m_strText;
@@ -125,15 +95,17 @@ public:
void AddFile( const wxString &file )
{ m_files += file; m_files += '\0'; }
// implement base class pure virtuals
virtual wxDataFormat GetPreferredFormat() const
{ return wxDF_FILENAME; }
virtual bool IsSupportedFormat(wxDataFormat format) const
virtual bool IsSupportedFormat( wxDataFormat format ) const
{ return format == wxDF_FILENAME; }
virtual size_t GetDataSize() const
{ return m_files.Len(); } // no trailing '\0'
virtual void GetDataHere(void *pBuf) const
{ memcpy(pBuf, m_files.c_str(), GetDataSize()); }
virtual void GetDataHere( void *data ) const
{ memcpy(data, m_files.c_str(), GetDataSize()); }
private:
wxString m_files;
@@ -152,18 +124,15 @@ class wxDropTarget: public wxObject
virtual void OnEnter() { }
virtual void OnLeave() { }
virtual bool OnDrop( long x, long y, const void *pData ) = 0;
virtual bool OnDrop( long x, long y, const void *data, size_t size ) = 0;
// implementation
int m_size;
// Override these to indicate what kind of data you support:
virtual size_t GetFormatCount() const = 0;
virtual wxDataFormat GetFormat(size_t n) const = 0;
void Drop( GdkEventDropDataAvailable *event, int x, int y );
// implementation
void RegisterWidget( GtkWidget *widget );
void UnregisterWidget( GtkWidget *widget );
};
@@ -177,7 +146,7 @@ class wxTextDropTarget: public wxDropTarget
public:
wxTextDropTarget() {};
virtual bool OnDrop( long x, long y, const void *pData );
virtual bool OnDrop( long x, long y, const void *data, size_t size );
virtual bool OnDropText( long x, long y, const char *psz );
protected:
@@ -196,9 +165,9 @@ class wxFileDropTarget: public wxDropTarget
wxFileDropTarget() {};
virtual bool OnDrop(long x, long y, const void *pData);
virtual bool OnDrop( long x, long y, const void *data, size_t size );
virtual bool OnDropFiles( long x, long y,
size_t nFiles, const char * const aszFiles[]);
size_t nFiles, const char * const aszFiles[] );
protected:
@@ -210,14 +179,14 @@ class wxFileDropTarget: public wxDropTarget
// wxDropSource
//-------------------------------------------------------------------------
enum wxDragResult
{
wxDragError, // error prevented the d&d operation from completing
wxDragNone, // drag target didn't accept the data
wxDragCopy, // the data was successfully copied
wxDragMove, // the data was successfully moved
wxDragCancel // the operation was cancelled by user (not an error)
};
enum wxDragResult
{
wxDragError, // error prevented the d&d operation from completing
wxDragNone, // drag target didn't accept the data
wxDragCopy, // the data was successfully copied
wxDragMove, // the data was successfully moved
wxDragCancel // the operation was cancelled by user (not an error)
};
class wxDropSource: public wxObject
{
@@ -232,11 +201,9 @@ class wxDropSource: public wxObject
wxDragResult DoDragDrop( bool bAllowMove = FALSE );
virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; };
protected:
friend void gtk_drag_callback( GtkWidget *widget, GdkEvent *event, wxDropSource *source );
// implementation
void RegisterWindow(void);
void UnregisterWindow(void);