// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
#ifdef __GNUG__
#include "gtk/gtkdnd.h"
#include "gtk/gtkselection.h"
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
+
//----------------------------------------------------------------------------
// global data
//----------------------------------------------------------------------------
/* XPM */
static char * gv_xpm[] = {
"40 34 3 1",
-" s None c None",
-". c black",
-"X c white",
+" s None c None",
+". c black",
+"X c white",
" ",
" ",
" ...... ",
" ",
" ",
" "};
-
+
/* 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",
+" s None c None",
+". c black",
+"X c wheat",
+"o c tan",
+"O c #6699FF",
/* pixels */
" ................... ",
" .XXXXXXXXXXXXXXXXX.. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" .XXXXXXXXXXXXXXXXXXXXXXX. ",
" ......................... "};
-
-
+
+
// ----------------------------------------------------------------------------
// "drag_leave"
// ----------------------------------------------------------------------------
static void target_drag_leave( GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
- guint WXUNUSED(time),
- wxDropTarget *drop_target )
+ GdkDragContext *context,
+ guint WXUNUSED(time),
+ wxDropTarget *drop_target )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
/* 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 );
}
// ----------------------------------------------------------------------------
static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
- gint x,
- gint y,
- guint time,
- wxDropTarget *drop_target )
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time,
+ wxDropTarget *drop_target )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
/* 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();
+ 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;
}
// ----------------------------------------------------------------------------
static gboolean target_drag_drop( GtkWidget *widget,
- GdkDragContext *context,
- gint x,
- gint y,
- guint time,
- wxDropTarget *drop_target )
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time,
+ wxDropTarget *drop_target )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
/* 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 );
+ 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;
}
// ----------------------------------------------------------------------------
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 )
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *data,
+ guint WXUNUSED(info),
+ guint time,
+ wxDropTarget *drop_target )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
/* 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;
+
+// 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 */
+ /* tell GTK that data transfer was successfull */
gtk_drag_finish( context, TRUE, FALSE, time );
}
else
{
- /* tell GTK that data transfer was not successfull */
+ /* 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 );
}
{
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") );
*/
/* this should trigger an "drag_data_received" event */
- gtk_drag_get_data( m_dragWidget,
- m_dragContext,
- format.GetAtom(),
- m_dragTime );
-
+ 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 );
+ 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_FUNC(target_drag_leave), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
- GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this );
+ 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_FUNC(target_drag_drop), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
- GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
+ 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
+ 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 */
-
+ (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_FUNC(target_drag_leave), (gpointer) this );
gtk_signal_connect( GTK_OBJECT(widget), "drag_motion",
- GTK_SIGNAL_FUNC(target_drag_motion), (gpointer) this );
+ 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_FUNC(target_drag_drop), (gpointer) this );
gtk_signal_connect( GTK_OBJECT(widget), "drag_data_received",
- GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
+ GTK_SIGNAL_FUNC(target_drag_data_received), (gpointer) this );
}
//-------------------------------------------------------------------------
if (IsSupported( wxDF_TEXT ))
{
RequestData( wxDF_TEXT );
- return TRUE;
+ return TRUE;
}
-
+
return FALSE;
}
{
wxTextDataObject data;
if (!GetData( &data )) return FALSE;
-
+
OnDropText( x, y, data.GetText() );
-
+
return TRUE;
}
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;
}
if (IsSupported( wxDF_FILENAME ))
{
RequestData( wxDF_FILENAME );
- return TRUE;
+ return TRUE;
}
-
+
return FALSE;
}
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++)
{
text += len+1;
}
- OnDropFiles( x, y, number, files );
-
+ OnDropFiles( x, y, number, files );
+
free( files );
-
+
return TRUE;
}
// "drag_data_get"
//----------------------------------------------------------------------------
-static void
+static void
source_drag_data_get (GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
- GtkSelectionData *selection_data,
- guint WXUNUSED(info),
- guint WXUNUSED(time),
- wxDropSource *drop_source )
+ GdkDragContext *context,
+ GtkSelectionData *selection_data,
+ guint WXUNUSED(info),
+ guint WXUNUSED(time),
+ wxDropSource *drop_source )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
// 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 );
-
+ 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. */
+ selection_data->target,
+ 8, // 8-bit
+ buffer,
+ data_size );
+
+ free( buffer );
+
+ /* so far only copy, no moves. TODO. */
drop_source->m_retValue = wxDragCopy;
-
- return;
- }
- }
-
+
+ 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 )
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *drop_source )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
// 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) )
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *WXUNUSED(drop_source) )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
// printf( "drag_begin.\n" );
}
-
+
//----------------------------------------------------------------------------
// "drag_end"
//----------------------------------------------------------------------------
static void source_drag_end( GtkWidget *WXUNUSED(widget),
- GdkDragContext *WXUNUSED(context),
- wxDropSource *drop_source )
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *drop_source )
{
+ if (g_isIdle) wxapp_install_idle_handler();
+
// printf( "drag_end.\n" );
drop_source->m_waiting = FALSE;
}
-
+
//---------------------------------------------------------------------------
// wxDropSource
//---------------------------------------------------------------------------
{
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;
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 );
+ m_data->Add( data );
}
else
{
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;
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 );
void wxDropSource::SetData( wxDataObject *data )
{
if (m_data) delete m_data;
-
+
if (data)
{
m_data = new wxDataBroker();
- m_data->Add( data );
+ m_data->Add( data );
}
else
{
void wxDropSource::SetData( wxDataBroker *data )
{
if (m_data) delete m_data;
-
+
m_data = 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, gdk_atom_intern( "STRING", FALSE ), 0, 0 );
-
+ gtk_target_list_add( target_list, atom, 0, 0 );
+
GdkEventMotion event;
event.window = m_widget->window;
int x = 0;
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;
{
GdkDragContext *context = gtk_drag_begin( m_widget,
target_list,
- GDK_ACTION_COPY,
- button_number, /* number of mouse button which started drag */
- (GdkEvent*) &event );
-
+ 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();
-
+ GdkPixmap *pm = m_goIcon.GetPixmap();
+
gtk_drag_set_icon_pixmap( context,
- gtk_widget_get_colormap( m_widget ),
- pm,
- bm,
- 0,
- 0 );
-
- while (m_waiting) wxYield();
+ 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_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_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_FUNC (source_drag_begin), (gpointer) this );
gtk_signal_connect (GTK_OBJECT(m_widget), "drag_end",
- GTK_SIGNAL_FUNC (source_drag_end), (gpointer) this );
+ 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_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_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_FUNC(source_drag_begin), (gpointer) this );
gtk_signal_disconnect_by_func( GTK_OBJECT(m_widget),
- GTK_SIGNAL_FUNC(source_drag_end), (gpointer) this );
+ GTK_SIGNAL_FUNC(source_drag_end), (gpointer) this );
}
#endif
projects / wxWidgets.git / blobdiff