Amebis/wxWidgets
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
Files
19da43267e410c8acdd57a31d89b6c5ecce8c36f
wxWidgets/src/gtk1/dnd.cpp
Robert Roebling 19da43267e controls sample tests a bit more 
combox doesn't send start-up event
  spinbutton looks correct now
  slider had vertic/horiz flags mixed up
  threads use gdk_enter_gui()
  dnd works a bit more often


git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@2304 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
1999-04-29 15:00:11 +00:00

865 lines
25 KiB
C++
Raw Blame History

///////////////////////////////////////////////////////////////////////////////
// Name: dnd.cpp
// Purpose: wxDropTarget class
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#pragma implementation "dnd.h"
#endif
#include "wx/dnd.h"
#if wxUSE_DRAG_AND_DROP
#include "wx/window.h"
#include "wx/app.h"
#include "wx/gdicmn.h"
#include "wx/intl.h"
#include "wx/utils.h"
#include "gdk/gdk.h"
#include "gtk/gtk.h"
#include "gdk/gdkprivate.h"
#include "gtk/gtkdnd.h"
#include "gtk/gtkselection.h"
//----------------------------------------------------------------------------
// global data
//----------------------------------------------------------------------------
extern bool g_blockEventsOnDrag;
//----------------------------------------------------------------------------
// standard icons
//----------------------------------------------------------------------------
/* XPM */
static char * gv_xpm[] = {
"40 34 3 1",
" s None c None",
". c black",
"X c white",
" ",
" ",
" ...... ",
" ..XXXXXX.. ",
" .XXXXXXXXXX. ",
" .XXXXXXXXXXXX. ",
" .XXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXX. ",
" .XXX..XXXX..XXX. ",
" ....XX....XX....XX. ",
" .XXX.XXX..XXXX..XXX.... ",
" .XXXXXXXXXXXXXXXXXXX.XXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXXX. ",
" ..XXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXX... ",
" ..XXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXX.XXXXXXX. ",
" .XXXXXXX.XXXXXXX.XXXXXXX. ",
" .XXXXXXXX.XXXXXXX.XXXXXXX. ",
" .XXXXXXX...XXXXX...XXXXX. ",
" .XXXXXXX. ..... ..... ",
" ..XXXX.. ",
" .... ",
" ",
" ",
" "};
/* XPM */
static char * page_xpm[] = {
/* width height ncolors chars_per_pixel */
"32 32 5 1",
/* colors */
" s None c None",
". c black",
"X c wheat",
"o c tan",
"O c #6699FF",
/* pixels */
" ................... ",
" .XXXXXXXXXXXXXXXXX.. ",
" .XXXXXXXXXXXXXXXXX.o. ",
" .XXXXXXXXXXXXXXXXX.oo. ",
" .XXXXXXXXXXXXXXXXX.ooo. ",
" .XXXXXXXXXXXXXXXXX.oooo. ",
" .XXXXXXXXXXXXXXXXX....... ",
" .XXXXXOOOOOOOOOOXXXooooo. ",
" .XXXXXXXXXXXXXXXXXXooooo. ",
" .XXXXXOOOOOOOOOOXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXOOOOOOOOOXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXOOOOOOOOOOXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXOOOOOOOOOOXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXOOOOOOOOOXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXOOOOOOOOOOXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXOOOOOOOOOOXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXOOOOOOOOOOXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXOOOOOOOXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" ......................... "};
// ----------------------------------------------------------------------------
// "drag_leave"
// ----------------------------------------------------------------------------
static void target_drag_leave( GtkWidget *WXUNUSED(widget),
GdkDragContext *context,
guint WXUNUSED(time),
wxDropTarget *drop_target )
{
/* inform the wxDropTarget about the current GdkDragContext.
this is only valid for the duration of this call */
drop_target->SetDragContext( context );
/* we don't need return values. this event is just for
information */
drop_target->OnLeave();
/* this has to be done because GDK has no "drag_enter" event */
drop_target->m_firstMotion = TRUE;
/* after this, invalidate the drop_target's GdkDragContext */
drop_target->SetDragContext( (GdkDragContext*) NULL );
}
// ----------------------------------------------------------------------------
// "drag_motion"
// ----------------------------------------------------------------------------
static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
GdkDragContext *context,
gint x,
gint y,
guint time,
wxDropTarget *drop_target )
{
/* Owen Taylor: "if the coordinates not in a drop zone,
return FALSE, otherwise call gtk_drag_status() and
return TRUE" */
/* inform the wxDropTarget about the current GdkDragContext.
this is only valid for the duration of this call */
drop_target->SetDragContext( context );
if (drop_target->m_firstMotion)
{
/* the first "drag_motion" event substitutes a "drag_enter" event */
drop_target->OnEnter();
}
/* give program a chance to react (i.e. to say no by returning FALSE) */
bool ret = drop_target->OnMove( x, y );
/* we don't yet handle which "actions" (i.e. copy or move)
the target accepts. so far we simply accept the
suggested action. TODO. */
if (ret)
gdk_drag_status( context, context->suggested_action, time );
/* after this, invalidate the drop_target's GdkDragContext */
drop_target->SetDragContext( (GdkDragContext*) NULL );
/* this has to be done because GDK has no "drag_enter" event */
drop_target->m_firstMotion = FALSE;
return ret;
}
// ----------------------------------------------------------------------------
// "drag_drop"
// ----------------------------------------------------------------------------
static gboolean target_drag_drop( GtkWidget *widget,
GdkDragContext *context,
gint x,
gint y,
guint time,
wxDropTarget *drop_target )
{
/* Owen Taylor: "if the drop is not in a drop zone,
return FALSE, otherwise, if you aren't accepting
the drop, call gtk_drag_finish() with success == FALSE
otherwise call gtk_drag_data_get()" */
// printf( "drop.\n" );
/* this seems to make a difference between not accepting
due to wrong target area and due to wrong format. let
us hope that this is not required.. */
/* inform the wxDropTarget about the current GdkDragContext.
this is only valid for the duration of this call */
drop_target->SetDragContext( context );
/* inform the wxDropTarget about the current drag widget.
this is only valid for the duration of this call */
drop_target->SetDragWidget( widget );
/* inform the wxDropTarget about the current drag time.
this is only valid for the duration of this call */
drop_target->SetDragTime( time );
bool ret = drop_target->OnDrop( x, y );
if (!ret)
{
/* cancel the whole thing */
gtk_drag_finish( context,
FALSE, /* no success */
FALSE, /* don't delete data on dropping side */
time );
}
/* after this, invalidate the drop_target's GdkDragContext */
drop_target->SetDragContext( (GdkDragContext*) NULL );
/* after this, invalidate the drop_target's drag widget */
drop_target->SetDragWidget( (GtkWidget*) NULL );
/* this has to be done because GDK has no "drag_enter" event */
drop_target->m_firstMotion = TRUE;
return ret;
}
// ----------------------------------------------------------------------------
// "drag_data_received"
// ----------------------------------------------------------------------------
static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
GdkDragContext *context,
gint x,
gint y,
GtkSelectionData *data,
guint WXUNUSED(info),
guint time,
wxDropTarget *drop_target )
{
/* Owen Taylor: "call gtk_drag_finish() with
success == TRUE" */
// printf( "data received.\n" );
if ((data->length <= 0) || (data->format != 8))
{
/* negative data length and non 8-bit data format
qualifies for junk */
gtk_drag_finish (context, FALSE, FALSE, time);
// printf( "no data.\n" );
return;
}
/* inform the wxDropTarget about the current GtkSelectionData.
this is only valid for the duration of this call */
drop_target->SetDragData( data );
if (drop_target->OnData( x, y ))
{
/* tell GTK that data transfer was successfull */
gtk_drag_finish( context, TRUE, FALSE, time );
}
else
{
/* tell GTK that data transfer was not successfull */
gtk_drag_finish( context, FALSE, FALSE, time );
}
/* after this, invalidate the drop_target's drag data */
drop_target->SetDragData( (GtkSelectionData*) NULL );
}
//----------------------------------------------------------------------------
// wxDropTarget
//----------------------------------------------------------------------------
wxDropTarget::wxDropTarget()
{
m_firstMotion = TRUE;
m_dragContext = (GdkDragContext*) NULL;
m_dragWidget = (GtkWidget*) NULL;
m_dragData = (GtkSelectionData*) NULL;
m_dragTime = 0;
}
wxDropTarget::~wxDropTarget()
{
}
void wxDropTarget::OnEnter()
{
}
void wxDropTarget::OnLeave()
{
}
bool wxDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
{
return TRUE;
}
bool wxDropTarget::OnDrop( int WXUNUSED(x), int WXUNUSED(y) )
{
return FALSE;
}
bool wxDropTarget::OnData( int WXUNUSED(x), int WXUNUSED(y) )
{
return FALSE;
}
bool wxDropTarget::RequestData( wxDataFormat format )
{
if (!m_dragContext) return FALSE;
if (!m_dragWidget) return FALSE;
/*
wxPrintf( _T("format: %s.\n"), format.GetId().c_str() );
if (format.GetType() == wxDF_PRIVATE) wxPrintf( _T("private data.\n") );
if (format.GetType() == wxDF_TEXT) wxPrintf( _T("text data.\n") );
*/
/* this should trigger an "drag_data_received" event */
gtk_drag_get_data( m_dragWidget,
m_dragContext,
format.GetAtom(),
m_dragTime );
return TRUE;
}
bool wxDropTarget::IsSupported( wxDataFormat format )
{
if (!m_dragContext) return FALSE;
GList *child = m_dragContext->targets;
while (child)
{
GdkAtom formatAtom = (GdkAtom) GPOINTER_TO_INT(child->data);
// char *name = gdk_atom_name( formatAtom );
// if (name) printf( "Format available: %s.\n", name );
if (formatAtom == format.GetAtom()) return TRUE;
child = child->next;
}
return FALSE;
}
bool wxDropTarget::GetData( wxDataObject *data_object )
{
if (!m_dragData) return FALSE;
if (m_dragData->target != data_object->GetFormat().GetAtom()) return FALSE;
if (data_object->GetFormat().GetType() == wxDF_TEXT)
{
wxTextDataObject *text_object = (wxTextDataObject*)data_object;
text_object->SetText( (const char*)m_dragData->data );
} else
if (data_object->GetFormat().GetType() == wxDF_FILENAME)
{
} else
if (data_object->GetFormat().GetType() == wxDF_PRIVATE)
{
wxPrivateDataObject *priv_object = (wxPrivateDataObject*)data_object;
priv_object->SetData( (const char*)m_dragData->data, (size_t)m_dragData->length );
}
return TRUE;
}
void wxDropTarget::UnregisterWidget( GtkWidget *widget )
{
wxCHECK_RET( widget != NULL, _T("unregister widget is NULL") );
gtk_drag_dest_unset( widget );
gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
GTK_SIGNAL_FUNC(target_drag_leave), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
}
void wxDropTarget::RegisterWidget( GtkWidget *widget )
{
wxCHECK_RET( widget != NULL, _T("register widget is NULL") );
/* gtk_drag_dest_set() determines what default behaviour we'd like
GTK to supply. we don't want to specify out targets (=formats)
or actions in advance (i.e. not GTK_DEST_DEFAULT_MOTION and
not GTK_DEST_DEFAULT_DROP). instead we react individually to
"drag_motion" and "drag_drop" events. this makes it possible
to allow dropping on only a small area. we should set
GTK_DEST_DEFAULT_HIGHLIGHT as this will switch on the nice
highlighting if dragging over standard controls, but this
seems to be broken without the other two. */
gtk_drag_dest_set( widget,
(GtkDestDefaults) 0, /* no default behaviour */
(GtkTargetEntry*) NULL, /* we don't supply any formats here */
0, /* number of targets = 0 */
(GdkDragAction) 0 ); /* we don't supply any actions here */
gtk_signal_connect( GTK_OBJECT(widget), "drag_leave",
GTK_SIGNAL_FUNC(target_drag_leave), (gpointer) this );
gtk_signal_connect( GTK_OBJECT(widget), "drag_motion",
GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this );
gtk_signal_connect( GTK_OBJECT(widget), "drag_drop",
GTK_SIGNAL_FUNC(target_drag_drop), (gpointer) this );
gtk_signal_connect( GTK_OBJECT(widget), "drag_data_received",
GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
}
//-------------------------------------------------------------------------
// wxTextDropTarget
//-------------------------------------------------------------------------
bool wxTextDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
{
return IsSupported( wxDF_TEXT );
}
bool wxTextDropTarget::OnDrop( int WXUNUSED(x), int WXUNUSED(y) )
{
if (IsSupported( wxDF_TEXT ))
{
RequestData( wxDF_TEXT );
return TRUE;
}
return FALSE;
}
bool wxTextDropTarget::OnData( int x, int y )
{
wxTextDataObject data;
if (!GetData( &data )) return FALSE;
OnDropText( x, y, data.GetText() );
return TRUE;
}
//-------------------------------------------------------------------------
// wxPrivateDropTarget
//-------------------------------------------------------------------------
wxPrivateDropTarget::wxPrivateDropTarget()
{
m_id = wxTheApp->GetAppName();
}
wxPrivateDropTarget::wxPrivateDropTarget( const wxString &id )
{
m_id = id;
}
bool wxPrivateDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
{
return IsSupported( m_id );
}
bool wxPrivateDropTarget::OnDrop( int WXUNUSED(x), int WXUNUSED(y) )
{
if (!IsSupported( m_id ))
{
RequestData( m_id );
return FALSE;
}
return FALSE;
}
bool wxPrivateDropTarget::OnData( int x, int y )
{
if (!IsSupported( m_id )) return FALSE;
wxPrivateDataObject data;
if (!GetData( &data )) return FALSE;
OnDropData( x, y, data.GetData(), data.GetSize() );
return TRUE;
}
//----------------------------------------------------------------------------
// A drop target which accepts files (dragged from File Manager or Explorer)
//----------------------------------------------------------------------------
bool wxFileDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
{
return IsSupported( wxDF_FILENAME );
}
bool wxFileDropTarget::OnDrop( int x, int y )
{
if (IsSupported( wxDF_FILENAME ))
{
RequestData( wxDF_FILENAME );
return TRUE;
}
return FALSE;
}
bool wxFileDropTarget::OnData( int x, int y )
{
wxFileDataObject data;
if (!GetData( &data )) return FALSE;
/* get number of substrings /root/mytext.txt/0/root/myothertext.txt/0/0 */
size_t number = 0;
size_t i;
size_t size = data.GetFiles().Length();
wxChar *text = WXSTRINGCAST data.GetFiles();
for ( i = 0; i < size; i++)
if (text[i] == 0) number++;
if (number == 0) return FALSE;
wxChar **files = new wxChar*[number];
text = WXSTRINGCAST data.GetFiles();
for (i = 0; i < number; i++)
{
files[i] = text;
int len = wxStrlen( text );
text += len+1;
}
OnDropFiles( x, y, number, files );
free( files );
return TRUE;
}
//----------------------------------------------------------------------------
// "drag_data_get"
//----------------------------------------------------------------------------
static void
source_drag_data_get (GtkWidget *WXUNUSED(widget),
GdkDragContext *context,
GtkSelectionData *selection_data,
guint WXUNUSED(info),
guint WXUNUSED(time),
wxDropSource *drop_source )
{
// printf( "Provide data!\n" );
// char *name = gdk_atom_name( selection_data->target );
// if (name) printf( "Format requested: %s.\n", name );
wxNode *node = drop_source->m_data->m_dataObjects.First();
while (node)
{
wxDataObject *data_object = (wxDataObject*) node->Data();
if (data_object->GetFormat().GetAtom() == selection_data->target)
{
// printf( "format found.\n" );
size_t data_size = data_object->GetSize();
if (data_size > 0)
{
// printf( "data size: %d.\n", (int)data_size );
guchar *buffer = new guchar[data_size];
data_object->WriteData( buffer );
gtk_selection_data_set( selection_data,
selection_data->target,
8, // 8-bit
buffer,
data_size );
free( buffer );
/* so far only copy, no moves. TODO. */
drop_source->m_retValue = wxDragCopy;
return;
}
}
node = node->Next();
}
drop_source->m_retValue = wxDragCancel;
}
//----------------------------------------------------------------------------
// "drag_data_delete"
//----------------------------------------------------------------------------
static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
GdkDragContext *WXUNUSED(context),
wxDropSource *drop_source )
{
// printf( "Delete the data!\n" );
drop_source->m_retValue = wxDragMove;
}
//----------------------------------------------------------------------------
// "drag_begin"
//----------------------------------------------------------------------------
static void source_drag_begin( GtkWidget *WXUNUSED(widget),
GdkDragContext *WXUNUSED(context),
wxDropSource *WXUNUSED(drop_source) )
{
// printf( "drag_begin.\n" );
}
//----------------------------------------------------------------------------
// "drag_end"
//----------------------------------------------------------------------------
static void source_drag_end( GtkWidget *WXUNUSED(widget),
GdkDragContext *WXUNUSED(context),
wxDropSource *drop_source )
{
// printf( "drag_end.\n" );
drop_source->m_waiting = FALSE;
}
//---------------------------------------------------------------------------
// wxDropSource
//---------------------------------------------------------------------------
wxDropSource::wxDropSource( wxWindow *win, const wxIcon &go, const wxIcon &stop )
{
g_blockEventsOnDrag = TRUE;
m_waiting = TRUE;
m_window = win;
m_widget = win->m_widget;
if (win->m_wxwindow) m_widget = win->m_wxwindow;
m_data = (wxDataBroker*) NULL;
m_retValue = wxDragCancel;
m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
m_goaheadCursor = wxCursor( wxCURSOR_HAND );
m_goIcon = go;
if (wxNullIcon == go) m_goIcon = wxIcon( page_xpm );
m_stopIcon = stop;
if (wxNullIcon == stop) m_stopIcon = wxIcon( gv_xpm );
}
wxDropSource::wxDropSource( wxDataObject *data, wxWindow *win, const wxIcon &go, const wxIcon &stop )
{
m_waiting = TRUE;
m_window = win;
m_widget = win->m_widget;
if (win->m_wxwindow) m_widget = win->m_wxwindow;
m_retValue = wxDragCancel;
if (data)
{
m_data = new wxDataBroker();
m_data->Add( data );
}
else
{
m_data = (wxDataBroker*) NULL;
}
m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
m_goaheadCursor = wxCursor( wxCURSOR_HAND );
m_goIcon = go;
if (wxNullIcon == go) m_goIcon = wxIcon( page_xpm );
m_stopIcon = stop;
if (wxNullIcon == stop) m_stopIcon = wxIcon( gv_xpm );
}
wxDropSource::wxDropSource( wxDataBroker *data, wxWindow *win )
{
m_window = win;
m_widget = win->m_widget;
if (win->m_wxwindow) m_widget = win->m_wxwindow;
m_retValue = wxDragCancel;
m_data = data;
m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
m_goaheadCursor = wxCursor( wxCURSOR_HAND );
}
void wxDropSource::SetData( wxDataObject *data )
{
if (m_data) delete m_data;
if (data)
{
m_data = new wxDataBroker();
m_data->Add( data );
}
else
{
m_data = (wxDataBroker*) NULL;
}
}
void wxDropSource::SetData( wxDataBroker *data )
{
if (m_data) delete m_data;
m_data = data;
}
wxDropSource::~wxDropSource(void)
{
if (m_data) delete m_data;
g_blockEventsOnDrag = FALSE;
}
wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
{
wxASSERT_MSG( m_data, _T("wxDragSource: no data") );
if (!m_data) return (wxDragResult) wxDragNone;
g_blockEventsOnDrag = TRUE;
RegisterWindow();
m_waiting = TRUE;
GdkAtom atom = gdk_atom_intern( "STRING", FALSE );
// wxPrintf( _T("atom id: %d.\n"), (int)atom );
GtkTargetList *target_list = gtk_target_list_new( (GtkTargetEntry*) NULL, 0 );
gtk_target_list_add( target_list, atom, 0, 0 );
GdkEventMotion event;
event.window = m_widget->window;
int x = 0;
int y = 0;
GdkModifierType state;
gdk_window_get_pointer( event.window, &x, &y, &state );
event.x = x;
event.y = y;
event.state = state;
event.time = GDK_CURRENT_TIME;
/* GTK wants to know which button was pressed which caused the dragging */
int button_number = 0;
if (event.state & GDK_BUTTON1_MASK) button_number = 1;
else if (event.state & GDK_BUTTON2_MASK) button_number = 2;
else if (event.state & GDK_BUTTON3_MASK) button_number = 3;
/* don't start dragging if no button is down */
if (button_number)
{
GdkDragContext *context = gtk_drag_begin( m_widget,
target_list,
GDK_ACTION_COPY,
button_number, /* number of mouse button which started drag */
(GdkEvent*) &event );
wxMask *mask = m_goIcon.GetMask();
GdkBitmap *bm = (GdkBitmap *) NULL;
if (mask) bm = mask->GetBitmap();
GdkPixmap *pm = m_goIcon.GetPixmap();
gtk_drag_set_icon_pixmap( context,
gtk_widget_get_colormap( m_widget ),
pm,
bm,
0,
0 );
while (m_waiting) gtk_main_iteration();;
}
g_blockEventsOnDrag = FALSE;
UnregisterWindow();
return m_retValue;
}
void wxDropSource::RegisterWindow()
{
if (!m_widget) return;
gtk_signal_connect( GTK_OBJECT(m_widget), "drag_data_get",
GTK_SIGNAL_FUNC (source_drag_data_get), (gpointer) this);
gtk_signal_connect (GTK_OBJECT(m_widget), "drag_data_delete",
GTK_SIGNAL_FUNC (source_drag_data_delete), (gpointer) this );
gtk_signal_connect (GTK_OBJECT(m_widget), "drag_begin",
GTK_SIGNAL_FUNC (source_drag_begin), (gpointer) this );
gtk_signal_connect (GTK_OBJECT(m_widget), "drag_end",
GTK_SIGNAL_FUNC (source_drag_end), (gpointer) this );
}
void wxDropSource::UnregisterWindow()
{
if (!m_widget) return;
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
GTK_SIGNAL_FUNC(source_drag_data_get), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
GTK_SIGNAL_FUNC(source_drag_data_delete), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
GTK_SIGNAL_FUNC(source_drag_begin), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
GTK_SIGNAL_FUNC(source_drag_end), (gpointer) this );
}
#endif
// wxUSE_DRAG_AND_DROP
Reference in New Issue View Git Blame Copy Permalink