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changed DoDragDrop(bool) into DoDragDrop(int) and added support for wxDrag_DefaultMove flag

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@15297 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Vadim Zeitlin
2002-04-28 14:30:54 +00:00
parent 501d2dd13e
commit 2245b2b2c3
18 changed files with 254 additions and 136 deletions
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18
docs/latex/wx/dropsrc.tex
View File

@@ -76,11 +76,23 @@ drop source. This will not delete any previously associated data.
\membersection{wxDropSource::DoDragDrop}\label{wxdropsourcedodragdrop}
\func{virtual wxDragResult}{DoDragDrop}{\param{bool }{allowMove = FALSE}}
\func{virtual wxDragResult}{DoDragDrop}{\param{int }{flags = {\tt wxDrag\_CopyOnly}}}
Do it (call this in response to a mouse button press, for example).
Do it (call this in response to a mouse button press, for example). This starts
the drag-and-drop operation which will terminate when the user releases the
mouse.
If {\bf allowMove} is FALSE, data can only be copied.
\wxheading{Parameters}
\docparam{flags}{If {\tt wxDrag\_AllowMove} is included in the flags, data may
be moved and not only copied (default). If {\tt wxDrag\_DefaultMove} is
specified (which includes the previous flag), this is even the default
operation}.
\wxheading{Return value}
Returns the operation requested by the user, may be {\tt wxDragCopy}, {\tt
wxDragMove}, {\tt wxDragCancel} or {\tt wxDragNone} if an error occured.
\membersection{wxDropSource::GiveFeedback}\label{wxdropsourcegivefeedback}

22
include/wx/dnd.h
View File

@@ -27,6 +27,17 @@
// constants
// ----------------------------------------------------------------------------
// flags for wxDropSource::DoDragDrop()
//
// NB: wxDrag_CopyOnly must be 0 (== FALSE) and wxDrag_AllowMove must be 1
// (== TRUE) for compatibility with the old DoDragDrop(bool) method!
enum
{
wxDrag_CopyOnly = 0, // allow only copying
wxDrag_AllowMove = 1, // allow moving (copying is always allowed)
wxDrag_DefaultMove = 3 // the default operation is move, not copy
};
// result of wxDropSource::DoDragDrop() call
enum wxDragResult
{
@@ -80,8 +91,10 @@ public:
// start drag action, see enum wxDragResult for return value description
//
// if bAllowMove is TRUE, data can be moved, if not - only copied
virtual wxDragResult DoDragDrop(bool bAllowMove = FALSE) = 0;
// if flags contains wxDrag_AllowMove, moving (and only copying) data is
// allowed, if it contains wxDrag_DefaultMove (which includes the previous
// flag), it is even the default operation
virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly) = 0;
// override to give feedback depending on the current operation result
// "effect" and return TRUE if you did something, FALSE to let the library
@@ -99,10 +112,13 @@ protected:
return m_cursorStop;
}
// the data we're dragging
wxDataObject *m_data;
// the cursors to use for feedback
wxCursor m_cursorCopy, m_cursorMove, m_cursorStop;
wxCursor m_cursorCopy,
m_cursorMove,
m_cursorStop;
};
// ----------------------------------------------------------------------------

21
include/wx/gtk/dnd.h
View File

@@ -71,7 +71,7 @@ public:
GtkWidget *m_dragWidget;
GtkSelectionData *m_dragData;
guint m_dragTime;
bool m_firstMotion; /* gdk has no "gdk_drag_enter" event */
bool m_firstMotion; // gdk has no "gdk_drag_enter" event
void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
@@ -86,25 +86,25 @@ public:
class wxDropSource: public wxDropSourceBase
{
public:
/* constructor. set data later with SetData() */
// constructor. set data later with SetData()
wxDropSource( wxWindow *win = (wxWindow *)NULL,
const wxIcon &copy = wxNullIcon,
const wxIcon &move = wxNullIcon,
const wxIcon &none = wxNullIcon);
/* constructor for setting one data object */
// constructor for setting one data object
wxDropSource( wxDataObject& data,
wxWindow *win,
const wxIcon &copy = wxNullIcon,
const wxIcon &move = wxNullIcon,
const wxIcon &none = wxNullIcon);
~wxDropSource();
virtual ~wxDropSource();
/* start drag action */
virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
// start drag action
virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
/* GTK implementation */
// GTK implementation
void RegisterWindow();
void UnregisterWindow();
@@ -129,10 +129,7 @@ private:
const wxIcon& none);
};
#endif
#endif // wxUSE_DRAG_AND_DROP
// wxUSE_DRAG_AND_DROP
#endif
//__GTKDNDH__
#endif //__GTKDNDH__

21
include/wx/gtk1/dnd.h
View File

@@ -71,7 +71,7 @@ public:
GtkWidget *m_dragWidget;
GtkSelectionData *m_dragData;
guint m_dragTime;
bool m_firstMotion; /* gdk has no "gdk_drag_enter" event */
bool m_firstMotion; // gdk has no "gdk_drag_enter" event
void SetDragContext( GdkDragContext *dc ) { m_dragContext = dc; }
void SetDragWidget( GtkWidget *w ) { m_dragWidget = w; }
@@ -86,25 +86,25 @@ public:
class wxDropSource: public wxDropSourceBase
{
public:
/* constructor. set data later with SetData() */
// constructor. set data later with SetData()
wxDropSource( wxWindow *win = (wxWindow *)NULL,
const wxIcon &copy = wxNullIcon,
const wxIcon &move = wxNullIcon,
const wxIcon &none = wxNullIcon);
/* constructor for setting one data object */
// constructor for setting one data object
wxDropSource( wxDataObject& data,
wxWindow *win,
const wxIcon &copy = wxNullIcon,
const wxIcon &move = wxNullIcon,
const wxIcon &none = wxNullIcon);
~wxDropSource();
virtual ~wxDropSource();
/* start drag action */
virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
// start drag action
virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
/* GTK implementation */
// GTK implementation
void RegisterWindow();
void UnregisterWindow();
@@ -129,10 +129,7 @@ private:
const wxIcon& none);
};
#endif
#endif // wxUSE_DRAG_AND_DROP
// wxUSE_DRAG_AND_DROP
#endif
//__GTKDNDH__
#endif //__GTKDNDH__

2
include/wx/mac/dnd.h
View File

@@ -91,7 +91,7 @@ public:
~wxDropSource();
/* start drag action */
virtual wxDragResult DoDragDrop( bool bAllowMove = FALSE );
virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
wxWindow* GetWindow() { return m_window ; }
void SetCurrentDrag( void* drag ) { m_currentDrag = drag ; }

2
include/wx/motif/dnd.h
View File

@@ -151,7 +151,7 @@ public:
~wxDropSource(void);
void SetData( wxDataObject &data );
wxDragResult DoDragDrop( bool bAllowMove = FALSE );
wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; };

2
include/wx/msw/ole/dropsrc.h
View File

@@ -64,7 +64,7 @@ public:
// do it (call this in response to a mouse button press, for example)
// params: if bAllowMove is false, data can be only copied
virtual wxDragResult DoDragDrop(bool bAllowMove = FALSE);
virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
// overridable: you may give some custom UI feedback during d&d operation
// in this function (it's called on each mouse move, so it shouldn't be

2
include/wx/os2/dnd.h
View File

@@ -40,7 +40,7 @@ public:
virtual ~wxDropSource();
/* start drag action */
virtual wxDragResult DoDragDrop(bool bAllowMove = FALSE);
virtual wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
protected:
void Init(void);

2
include/wx/x11/dnd.h
View File

@@ -151,7 +151,7 @@ public:
~wxDropSource(void);
void SetData( wxDataObject &data );
wxDragResult DoDragDrop( bool bAllowMove = FALSE );
wxDragResult DoDragDrop(int flags = wxDrag_CopyOnly);
virtual bool GiveFeedback( wxDragResult WXUNUSED(effect), bool WXUNUSED(bScrolling) ) { return TRUE; };

66
samples/dnd/dnd.cpp
View File

@@ -74,16 +74,6 @@ public:
virtual bool OnDropText(wxCoord x, wxCoord y, const wxString& text);
// uncomment this if you want to always force Move to be the default
// action, even under wxGTK where it is normally Copy
#if 0
wxDragResult OnDragOver(wxCoord x, wxCoord y, wxDragResult def)
{
wxDragResult res = wxTextDropTarget::OnDragOver(x, y, def);
return res == wxDragNone ? wxDragNone : wxDragMove;
}
#endif // 0
private:
wxListBox *m_pOwner;
};
@@ -231,13 +221,15 @@ class DnDFrame : public wxFrame
{
public:
DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h);
~DnDFrame();
virtual ~DnDFrame();
void OnPaint(wxPaintEvent& event);
void OnSize(wxSizeEvent& event);
void OnQuit (wxCommandEvent& event);
void OnQuit(wxCommandEvent& event);
void OnAbout(wxCommandEvent& event);
void OnDrag (wxCommandEvent& event);
void OnDrag(wxCommandEvent& event);
void OnDragMoveByDefault(wxCommandEvent& event);
void OnDragMoveAllow(wxCommandEvent& event);
void OnNewFrame(wxCommandEvent& event);
void OnHelp (wxCommandEvent& event);
void OnLogClear(wxCommandEvent& event);
@@ -257,12 +249,15 @@ public:
void OnLeftDown(wxMouseEvent& event);
void OnRightDown(wxMouseEvent& event);
void OnUpdateUIMoveByDefault(wxUpdateUIEvent& event);
void OnUpdateUIPasteText(wxUpdateUIEvent& event);
void OnUpdateUIPasteBitmap(wxUpdateUIEvent& event);
DECLARE_EVENT_TABLE()
private:
// GUI controls
wxListBox *m_ctrlFile,
*m_ctrlText;
wxTextCtrl *m_ctrlLog;
@@ -270,6 +265,13 @@ private:
wxLog *m_pLog,
*m_pLogPrev;
// move the text by default (or copy)?
bool m_moveByDefault;
// allow moving the text at all?
bool m_moveAllow;
// the text we drag
wxString m_strText;
};
@@ -786,6 +788,8 @@ enum
{
Menu_Quit = 1,
Menu_Drag,
Menu_DragMoveDef,
Menu_DragMoveAllow,
Menu_NewFrame,
Menu_About = 101,
Menu_Help,
@@ -808,6 +812,8 @@ BEGIN_EVENT_TABLE(DnDFrame, wxFrame)
EVT_MENU(Menu_Quit, DnDFrame::OnQuit)
EVT_MENU(Menu_About, DnDFrame::OnAbout)
EVT_MENU(Menu_Drag, DnDFrame::OnDrag)
EVT_MENU(Menu_DragMoveDef, DnDFrame::OnDragMoveByDefault)
EVT_MENU(Menu_DragMoveAllow,DnDFrame::OnDragMoveAllow)
EVT_MENU(Menu_NewFrame, DnDFrame::OnNewFrame)
EVT_MENU(Menu_Help, DnDFrame::OnHelp)
EVT_MENU(Menu_Clear, DnDFrame::OnLogClear)
@@ -820,6 +826,8 @@ BEGIN_EVENT_TABLE(DnDFrame, wxFrame)
#endif // USE_METAFILES
EVT_MENU(Menu_CopyFiles, DnDFrame::OnCopyFiles)
EVT_UPDATE_UI(Menu_DragMoveDef, DnDFrame::OnUpdateUIMoveByDefault)
EVT_UPDATE_UI(Menu_Paste, DnDFrame::OnUpdateUIPasteText)
EVT_UPDATE_UI(Menu_PasteBitmap, DnDFrame::OnUpdateUIPasteBitmap)
@@ -928,6 +936,8 @@ DnDFrame::DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h)
// construct menu
wxMenu *file_menu = new wxMenu;
file_menu->Append(Menu_Drag, "&Test drag...");
file_menu->AppendCheckItem(Menu_DragMoveDef, "&Move by default");
file_menu->AppendCheckItem(Menu_DragMoveAllow, "&Allow moving");
file_menu->AppendSeparator();
file_menu->Append(Menu_NewFrame, "&New frame\tCtrl-N");
file_menu->AppendSeparator();
@@ -1013,6 +1023,11 @@ DnDFrame::DnDFrame(wxFrame *frame, char *title, int x, int y, int w, int h)
m_ctrlLog->SetConstraints(c);
SetAutoLayout(TRUE);
// copy data by default but allow moving it as well
m_moveByDefault = FALSE;
m_moveAllow = TRUE;
menu_bar->Check(Menu_DragMoveAllow, TRUE);
}
void DnDFrame::OnQuit(wxCommandEvent& WXUNUSED(event))
@@ -1039,6 +1054,12 @@ void DnDFrame::OnPaint(wxPaintEvent& WXUNUSED(event))
dc.DrawText( "Drag text from here!", 100, h-50 );
}
void DnDFrame::OnUpdateUIMoveByDefault(wxUpdateUIEvent& event)
{
// only can move by default if moving is allowed at all
event.Enable(m_moveAllow);
}
void DnDFrame::OnUpdateUIPasteText(wxUpdateUIEvent& event)
{
#ifdef __WXDEBUG__
@@ -1082,6 +1103,16 @@ void DnDFrame::OnDrag(wxCommandEvent& WXUNUSED(event))
m_strText = strText;
}
void DnDFrame::OnDragMoveByDefault(wxCommandEvent& event)
{
m_moveByDefault = event.IsChecked();
}
void DnDFrame::OnDragMoveAllow(wxCommandEvent& event)
{
m_moveAllow = event.IsChecked();
}
void DnDFrame::OnAbout(wxCommandEvent& WXUNUSED(event))
{
wxMessageBox("Drag-&-Drop Demo\n"
@@ -1143,9 +1174,14 @@ void DnDFrame::OnLeftDown(wxMouseEvent &WXUNUSED(event) )
wxDROP_ICON(dnd_move),
wxDROP_ICON(dnd_none));
const char *pc;
int flags = 0;
if ( m_moveByDefault )
flags |= wxDrag_DefaultMove;
else if ( m_moveAllow )
flags |= wxDrag_AllowMove;
switch ( source.DoDragDrop(TRUE) )
const char *pc;
switch ( source.DoDragDrop(flags) )
{
case wxDragError: pc = "Error!"; break;
case wxDragNone: pc = "Nothing"; break;

103
src/gtk/dnd.cpp
View File

@@ -48,6 +48,9 @@ extern bool g_isIdle;
extern bool g_blockEventsOnDrag;
// the flags used for the last DoDragDrop()
static long gs_flagsForDrag = 0;
// the trace mask we use with wxLogTrace() - call
// wxLog::AddTraceMask(TRACE_DND) to enable the trace messages from here
// (there are quite a few of them, so don't enable this by default)
@@ -102,6 +105,30 @@ static const char * page_xpm[] = {
" ......................... "};
// ============================================================================
// private functions
// ============================================================================
// ----------------------------------------------------------------------------
// convert between GTK+ and wxWindows DND constants
// ----------------------------------------------------------------------------
static wxDragResult ConvertFromGTK(long action)
{
switch ( action )
{
case GDK_ACTION_COPY:
return wxDragCopy;
case GDK_ACTION_LINK:
return wxDragLink;
case GDK_ACTION_MOVE:
return wxDragMove;
}
return wxDragNone;
}
// ----------------------------------------------------------------------------
// "drag_leave"
@@ -150,13 +177,28 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
this is only valid for the duration of this call */
drop_target->SetDragContext( context );
// GTK+ always supposes that we want to copy the data by default while we
// might want to move it, so examine not only suggested_action - which is
// only good if we don't have our own preferences - but also the actions
// field
wxDragResult result;
if ( context->suggested_action == GDK_ACTION_COPY )
result = wxDragCopy;
else if ( context->suggested_action == GDK_ACTION_LINK )
result = wxDragLink;
else
if ( (gs_flagsForDrag & wxDrag_DefaultMove) == wxDrag_DefaultMove &&
(context->actions & GDK_ACTION_MOVE ) )
{
// move is requested by the program and allowed by GTK+ - do it, even
// though suggested_action may be currently wxDragCopy
result = wxDragMove;
}
else // use whatever GTK+ says we should
{
result = ConvertFromGTK(context->suggested_action);
if ( (result == wxDragMove) && !(gs_flagsForDrag & wxDrag_AllowMove) )
{
// we're requested to move but we can't
result = wxDragCopy;
}
}
if (drop_target->m_firstMotion)
{
@@ -322,13 +364,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
this is only valid for the duration of this call */
drop_target->SetDragData( data );
wxDragResult result;
if ( context->suggested_action == GDK_ACTION_COPY )
result = wxDragCopy;
else if ( context->suggested_action == GDK_ACTION_LINK )
result = wxDragLink;
else
result = wxDragMove;
wxDragResult result = ConvertFromGTK(context->suggested_action);
if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
{
@@ -619,12 +655,7 @@ gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigur
if (g_isIdle)
wxapp_install_idle_handler();
wxDragResult action = wxDragNone;
if (source->m_dragContext->action == GDK_ACTION_COPY) action = wxDragCopy;
if (source->m_dragContext->action == GDK_ACTION_LINK) action = wxDragLink;
if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove;
source->GiveFeedback( action );
source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) );
return 0;
}
@@ -743,19 +774,14 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 );
}
wxDragResult wxDropSource::DoDragDrop( bool allowMove )
wxDragResult wxDropSource::DoDragDrop(int flags)
{
wxASSERT_MSG( m_data, wxT("Drop source: no data") );
if (!m_data)
return (wxDragResult) wxDragNone;
if (m_data->GetFormatCount() == 0)
return (wxDragResult) wxDragNone;
wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone,
wxT("Drop source: no data") );
// still in drag
if (g_blockEventsOnDrag)
return (wxDragResult) wxDragNone;
return wxDragNone;
// disabled for now
g_blockEventsOnDrag = TRUE;
@@ -768,7 +794,8 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
m_data->GetAllFormats( array );
for (size_t i = 0; i < m_data->GetFormatCount(); i++)
size_t count = m_data->GetFormatCount();
for (size_t i = 0; i < count; i++)
{
GdkAtom atom = array[i];
wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
@@ -801,8 +828,14 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
if (button_number)
{
int action = GDK_ACTION_COPY;
if ( allowMove )
if ( flags & wxDrag_AllowMove )
action |= GDK_ACTION_MOVE;
// VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad
// to use a global to pass the flags to the drop target but I'd
// surely prefer a better way to do it
gs_flagsForDrag = flags;
GdkDragContext *context = gtk_drag_begin( m_widget,
target_list,
(GdkDragAction)action,
@@ -813,14 +846,12 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
PrepareIcon( action, context );
while (m_waiting) gtk_main_iteration();
while (m_waiting)
gtk_main_iteration();
if (context->action == GDK_ACTION_COPY)
m_retValue = wxDragCopy;
if (context->action == GDK_ACTION_LINK)
m_retValue = wxDragLink;
if (context->action == GDK_ACTION_MOVE)
m_retValue = wxDragMove;
m_retValue = ConvertFromGTK(context->action);
if ( m_retValue == wxDragNone )
m_retValue = wxDragCancel;
}
#if wxUSE_THREADS

103
src/gtk1/dnd.cpp
View File

@@ -48,6 +48,9 @@ extern bool g_isIdle;
extern bool g_blockEventsOnDrag;
// the flags used for the last DoDragDrop()
static long gs_flagsForDrag = 0;
// the trace mask we use with wxLogTrace() - call
// wxLog::AddTraceMask(TRACE_DND) to enable the trace messages from here
// (there are quite a few of them, so don't enable this by default)
@@ -102,6 +105,30 @@ static const char * page_xpm[] = {
" ......................... "};
// ============================================================================
// private functions
// ============================================================================
// ----------------------------------------------------------------------------
// convert between GTK+ and wxWindows DND constants
// ----------------------------------------------------------------------------
static wxDragResult ConvertFromGTK(long action)
{
switch ( action )
{
case GDK_ACTION_COPY:
return wxDragCopy;
case GDK_ACTION_LINK:
return wxDragLink;
case GDK_ACTION_MOVE:
return wxDragMove;
}
return wxDragNone;
}
// ----------------------------------------------------------------------------
// "drag_leave"
@@ -150,13 +177,28 @@ static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
this is only valid for the duration of this call */
drop_target->SetDragContext( context );
// GTK+ always supposes that we want to copy the data by default while we
// might want to move it, so examine not only suggested_action - which is
// only good if we don't have our own preferences - but also the actions
// field
wxDragResult result;
if ( context->suggested_action == GDK_ACTION_COPY )
result = wxDragCopy;
else if ( context->suggested_action == GDK_ACTION_LINK )
result = wxDragLink;
else
if ( (gs_flagsForDrag & wxDrag_DefaultMove) == wxDrag_DefaultMove &&
(context->actions & GDK_ACTION_MOVE ) )
{
// move is requested by the program and allowed by GTK+ - do it, even
// though suggested_action may be currently wxDragCopy
result = wxDragMove;
}
else // use whatever GTK+ says we should
{
result = ConvertFromGTK(context->suggested_action);
if ( (result == wxDragMove) && !(gs_flagsForDrag & wxDrag_AllowMove) )
{
// we're requested to move but we can't
result = wxDragCopy;
}
}
if (drop_target->m_firstMotion)
{
@@ -322,13 +364,7 @@ static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
this is only valid for the duration of this call */
drop_target->SetDragData( data );
wxDragResult result;
if ( context->suggested_action == GDK_ACTION_COPY )
result = wxDragCopy;
else if ( context->suggested_action == GDK_ACTION_LINK )
result = wxDragLink;
else
result = wxDragMove;
wxDragResult result = ConvertFromGTK(context->suggested_action);
if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
{
@@ -619,12 +655,7 @@ gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigur
if (g_isIdle)
wxapp_install_idle_handler();
wxDragResult action = wxDragNone;
if (source->m_dragContext->action == GDK_ACTION_COPY) action = wxDragCopy;
if (source->m_dragContext->action == GDK_ACTION_LINK) action = wxDragLink;
if (source->m_dragContext->action == GDK_ACTION_MOVE) action = wxDragMove;
source->GiveFeedback( action );
source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) );
return 0;
}
@@ -743,19 +774,14 @@ void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 );
}
wxDragResult wxDropSource::DoDragDrop( bool allowMove )
wxDragResult wxDropSource::DoDragDrop(int flags)
{
wxASSERT_MSG( m_data, wxT("Drop source: no data") );
if (!m_data)
return (wxDragResult) wxDragNone;
if (m_data->GetFormatCount() == 0)
return (wxDragResult) wxDragNone;
wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone,
wxT("Drop source: no data") );
// still in drag
if (g_blockEventsOnDrag)
return (wxDragResult) wxDragNone;
return wxDragNone;
// disabled for now
g_blockEventsOnDrag = TRUE;
@@ -768,7 +794,8 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
m_data->GetAllFormats( array );
for (size_t i = 0; i < m_data->GetFormatCount(); i++)
size_t count = m_data->GetFormatCount();
for (size_t i = 0; i < count; i++)
{
GdkAtom atom = array[i];
wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
@@ -801,8 +828,14 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
if (button_number)
{
int action = GDK_ACTION_COPY;
if ( allowMove )
if ( flags & wxDrag_AllowMove )
action |= GDK_ACTION_MOVE;
// VZ: as we already use g_blockEventsOnDrag it shouldn't be that bad
// to use a global to pass the flags to the drop target but I'd
// surely prefer a better way to do it
gs_flagsForDrag = flags;
GdkDragContext *context = gtk_drag_begin( m_widget,
target_list,
(GdkDragAction)action,
@@ -813,14 +846,12 @@ wxDragResult wxDropSource::DoDragDrop( bool allowMove )
PrepareIcon( action, context );
while (m_waiting) gtk_main_iteration();
while (m_waiting)
gtk_main_iteration();
if (context->action == GDK_ACTION_COPY)
m_retValue = wxDragCopy;
if (context->action == GDK_ACTION_LINK)
m_retValue = wxDragLink;
if (context->action == GDK_ACTION_MOVE)
m_retValue = wxDragMove;
m_retValue = ConvertFromGTK(context->action);
if ( m_retValue == wxDragNone )
m_retValue = wxDragCancel;
}
#if wxUSE_THREADS

2
src/mac/carbon/dnd.cpp
View File

@@ -259,7 +259,7 @@ wxDropSource::~wxDropSource()
}
wxDragResult wxDropSource::DoDragDrop( bool allowMove )
wxDragResult wxDropSource::DoDragDrop(int WXUNUSED(flags))
{
wxASSERT_MSG( m_data, wxT("Drop source: no data") );

2
src/mac/dnd.cpp
View File

@@ -259,7 +259,7 @@ wxDropSource::~wxDropSource()
}
wxDragResult wxDropSource::DoDragDrop( bool allowMove )
wxDragResult wxDropSource::DoDragDrop(int WXUNUSED(flags))
{
wxASSERT_MSG( m_data, wxT("Drop source: no data") );

2
src/motif/dnd.cpp
View File

@@ -164,7 +164,7 @@ wxDropSource::~wxDropSource(void)
// if (m_data) delete m_data;
}
wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
{
// wxASSERT_MSG( m_data, "wxDragSource: no data" );

16
src/msw/ole/dropsrc.cpp
View File

@@ -187,17 +187,18 @@ wxDropSource::~wxDropSource()
// Name : DoDragDrop
// Purpose : start drag and drop operation
// Returns : wxDragResult - the code of performed operation
// Params : [in] bool bAllowMove: if false, only copy is allowed
// Params : [in] int flags: specifies if moving is allowe (or only copying)
// Notes : you must call SetData() before if you had used def ctor
wxDragResult wxDropSource::DoDragDrop(bool bAllowMove)
wxDragResult wxDropSource::DoDragDrop(int flags)
{
wxCHECK_MSG( m_data != NULL, wxDragNone, wxT("No data in wxDropSource!") );
DWORD dwEffect;
HRESULT hr = ::DoDragDrop(m_data->GetInterface(),
m_pIDropSource,
bAllowMove ? DROPEFFECT_COPY | DROPEFFECT_MOVE
: DROPEFFECT_COPY,
(flags & wxDrag_AllowMove)
? DROPEFFECT_COPY | DROPEFFECT_MOVE
: DROPEFFECT_COPY,
&dwEffect);
if ( hr == DRAGDROP_S_CANCEL ) {
@@ -209,11 +210,8 @@ wxDragResult wxDropSource::DoDragDrop(bool bAllowMove)
}
else if ( dwEffect & DROPEFFECT_MOVE ) {
// consistency check: normally, we shouldn't get "move" at all
// here if !bAllowMove, but in practice it does happen quite often
if ( bAllowMove )
return wxDragMove;
else
return wxDragCopy;
// here if we don't allow it, but in practice it does happen quite often
return (flags & wxDrag_AllowMove) ? wxDragMove : wxDragCopy;
}
else {
// not copy or move

2
src/os2/dnd.cpp
View File

@@ -124,7 +124,7 @@ wxDropSource::~wxDropSource()
};
wxDragResult wxDropSource::DoDragDrop(
bool WXUNUSED(bAllowMove)
int WXUNUSED(flags)
)
{
// TODO

2
src/x11/dnd.cpp
View File

@@ -164,7 +164,7 @@ wxDropSource::~wxDropSource(void)
// if (m_data) delete m_data;
}
wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
wxDragResult wxDropSource::DoDragDrop( int WXUNUSED(flags) )
{
// wxASSERT_MSG( m_data, "wxDragSource: no data" );