///////////////////////////////////////////////////////////////////////////////
-// Name: dnd.cpp
+// Name: src/gtk1/dnd.cpp
// Purpose: wxDropTarget class
// Author: Robert Roebling
// Id: $Id$
// Copyright: (c) 1998 Robert Roebling
-// Licence: wxWindows licence
+// Licence: wxWindows licence
///////////////////////////////////////////////////////////////////////////////
-#ifdef __GNUG__
-#pragma implementation "dnd.h"
-#endif
+// For compilers that support precompilation, includes "wx.h".
+#include "wx/wxprec.h"
+
+#if wxUSE_DRAG_AND_DROP
#include "wx/dnd.h"
-#if wxUSE_DRAG_AND_DROP
+#ifndef WX_PRECOMP
+ #include "wx/intl.h"
+ #include "wx/log.h"
+ #include "wx/app.h"
+ #include "wx/utils.h"
+ #include "wx/window.h"
+ #include "wx/gdicmn.h"
+#endif
+
+#include "wx/gtk1/private.h"
-#include "wx/window.h"
-#include "wx/app.h"
-#include "wx/gdicmn.h"
-#include "wx/intl.h"
-#include "wx/utils.h"
+#include <gdk/gdkprivate.h>
-#include "gdk/gdk.h"
-#include "gtk/gtk.h"
-#include "gdk/gdkprivate.h"
+#include <gtk/gtkdnd.h>
+#include <gtk/gtkselection.h>
-#include <X11/Xlib.h>
+//-----------------------------------------------------------------------------
+// idle system
+//-----------------------------------------------------------------------------
+
+extern void wxapp_install_idle_handler();
+extern bool g_isIdle;
//----------------------------------------------------------------------------
// global data
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)
+#define TRACE_DND wxT("dnd")
+
+// global variables because GTK+ DnD want to have the
+// mouse event that caused it
+extern GdkEvent *g_lastMouseEvent;
+extern int g_lastButtonNumber;
+
//----------------------------------------------------------------------------
// 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",
+/* Copyright (c) Julian Smart */
+static const char * page_xpm[] = {
+/* columns rows colors chars-per-pixel */
+"32 32 37 1",
+"5 c #7198D9",
+", c #769CDA",
+"2 c #DCE6F6",
+"i c #FFFFFF",
+"e c #779DDB",
+": c #9AB6E4",
+"9 c #EAF0FA",
+"- c #B1C7EB",
+"$ c #6992D7",
+"y c #F7F9FD",
+"= c #BED0EE",
+"q c #F0F5FC",
+"; c #A8C0E8",
+"@ c #366BC2",
+" c None",
+"u c #FDFEFF",
+"8 c #5987D3",
+"* c #C4D5F0",
+"7 c #7CA0DC",
+"O c #487BCE",
+"< c #6B94D7",
+"& c #CCDAF2",
+"> c #89A9DF",
+"3 c #5584D1",
+"w c #82A5DE",
+"1 c #3F74CB",
+"+ c #3A70CA",
+". c #3569BF",
+"% c #D2DFF4",
+"# c #3366BB",
+"r c #F5F8FD",
+"0 c #FAFCFE",
+"4 c #DFE8F7",
+"X c #5E8AD4",
+"o c #5282D0",
+"t c #B8CCEC",
+"6 c #E5EDF9",
/* 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. ",
-" ......................... "};
-
-
-#if (GTK_MINOR_VERSION > 0)
-
-#include "gtk/gtkdnd.h"
-#include "gtk/gtkselection.h"
+" ",
+" ",
+" ",
+" ",
+" ",
+" .XXXooOO++@# ",
+" $%&*=-;::>,<1 ",
+" $2%&*=-;::><:3 ",
+" $42%&*=-;::<&:3 ",
+" 56477<<<<8<<9&:X ",
+" 59642%&*=-;<09&:5 ",
+" 5q9642%&*=-<<<<<# ",
+" 5qqw777<<<<<88:>+ ",
+" erqq9642%&*=t;::+ ",
+" eyrqq9642%&*=t;:O ",
+" eyywwww777<<<<t;O ",
+" e0yyrqq9642%&*=to ",
+" e00yyrqq9642%&*=o ",
+" eu0wwwwwww777<&*X ",
+" euu00yyrqq9642%&X ",
+" eiuu00yyrqq9642%X ",
+" eiiwwwwwwwwww742$ ",
+" eiiiuu00yyrqq964$ ",
+" eiiiiuu00yyrqq96$ ",
+" eiiiiiuu00yyrqq95 ",
+" eiiiiiiuu00yyrqq5 ",
+" eeeeeeeeeeeeee55e ",
+" ",
+" ",
+" ",
+" ",
+" "
+};
+
+
+// ============================================================================
+// private functions
+// ============================================================================
+
+// ----------------------------------------------------------------------------
+// convert between GTK+ and wxWidgets 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"
// ----------------------------------------------------------------------------
+extern "C" {
static void target_drag_leave( GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
- guint WXUNUSED(time),
- wxDropTarget *dt )
+ GdkDragContext *context,
+ guint WXUNUSED(time),
+ wxDropTarget *drop_target )
{
- dt->SetDragContext( context );
- dt->OnLeave();
- dt->SetDragContext( (GdkDragContext*) NULL );
+ 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( NULL );
+}
}
// ----------------------------------------------------------------------------
// "drag_motion"
// ----------------------------------------------------------------------------
+extern "C" {
static gboolean target_drag_motion( GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
- gint x,
- gint y,
- guint time,
- wxDropTarget *dt )
-{
- dt->SetDragContext( context );
-
- if (dt->OnMove( x, y ))
+ 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 );
+
+ // 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 (drop_target->GetDefaultAction() == wxDragNone)
+ {
+ // use default action set by wxDropSource::DoDragDrop()
+ if ( (gs_flagsForDrag & wxDrag_DefaultMove) == wxDrag_DefaultMove &&
+ (context->actions & GDK_ACTION_MOVE ) )
{
- gdk_drag_status( context, context->suggested_action, time );
+ // 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;
+ }
+ }
+ }
+ else if (drop_target->GetDefaultAction() == wxDragMove &&
+ (context->actions & GDK_ACTION_MOVE))
+ {
+ result = wxDragMove;
}
else
{
- gdk_drag_status( context, (GdkDragAction)0, time );
+ if (context->actions & GDK_ACTION_COPY)
+ result = wxDragCopy;
+ else if (context->actions & GDK_ACTION_MOVE)
+ result = wxDragMove;
+ else
+ result = wxDragNone;
+ }
+
+ if (drop_target->m_firstMotion)
+ {
+ /* the first "drag_motion" event substitutes a "drag_enter" event */
+ result = drop_target->OnEnter( x, y, result );
+ }
+ else
+ {
+ /* give program a chance to react (i.e. to say no by returning FALSE) */
+ result = drop_target->OnDragOver( x, y, result );
+ }
+
+ bool ret = wxIsDragResultOk( result );
+ if (ret)
+ {
+ GdkDragAction action;
+ if (result == wxDragCopy)
+ action = GDK_ACTION_COPY;
+ else if (result == wxDragLink)
+ action = GDK_ACTION_LINK;
+ else
+ action = GDK_ACTION_MOVE;
+
+ gdk_drag_status( context, action, time );
}
-
- dt->SetDragContext( (GdkDragContext*) NULL );
- return TRUE;
+
+ /* after this, invalidate the drop_target's GdkDragContext */
+ drop_target->SetDragContext( NULL );
+
+ /* this has to be done because GDK has no "drag_enter" event */
+ drop_target->m_firstMotion = false;
+
+ return ret;
+}
}
// ----------------------------------------------------------------------------
// "drag_drop"
// ----------------------------------------------------------------------------
+extern "C" {
static gboolean target_drag_drop( GtkWidget *widget,
- GdkDragContext *context,
- gint x,
- gint y,
- guint time )
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ guint time,
+ wxDropTarget *drop_target )
{
- printf( "drop at: %d,%d.\n", x, y );
-
- if (context->targets)
+ 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 );
+
+/*
+ wxDragResult result = wxDragMove;
+ if (context->suggested_action == GDK_ACTION_COPY) result = wxDragCopy;
+*/
+
+ /* reset the block here as someone might very well
+ show a dialog as a reaction to a drop and this
+ wouldn't work without events */
+ g_blockEventsOnDrag = false;
+
+ bool ret = drop_target->OnDrop( x, y );
+
+ if (!ret)
{
- gtk_drag_get_data( widget,
- context,
- GPOINTER_TO_INT (context->targets->data),
- time );
+ wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned FALSE") );
+
+ /* cancel the whole thing */
+ gtk_drag_finish( context,
+ FALSE, /* no success */
+ FALSE, /* don't delete data on dropping side */
+ time );
+ }
+ else
+ {
+ wxLogTrace(TRACE_DND, wxT( "Drop target: OnDrop returned TRUE") );
+
+#if wxUSE_THREADS
+ /* disable GUI threads */
+#endif
+
+ GdkAtom format = drop_target->GetMatchingPair();
+
+ // this does happen somehow, see bug 555111
+ wxCHECK_MSG( format, FALSE, wxT("no matching GdkAtom for format?") );
+
+/*
+ GdkDragAction action = GDK_ACTION_MOVE;
+ if (result == wxDragCopy) action == GDK_ACTION_COPY;
+ context->action = action;
+*/
+ /* this should trigger an "drag_data_received" event */
+ gtk_drag_get_data( widget,
+ context,
+ format,
+ time );
+
+#if wxUSE_THREADS
+ /* re-enable GUI threads */
+#endif
}
- return FALSE;
+
+ /* after this, invalidate the drop_target's GdkDragContext */
+ drop_target->SetDragContext( NULL );
+
+ /* after this, invalidate the drop_target's drag widget */
+ drop_target->SetDragWidget( NULL );
+
+ /* this has to be done because GDK has no "drag_enter" event */
+ drop_target->m_firstMotion = true;
+
+ return ret;
+}
}
// ----------------------------------------------------------------------------
// "drag_data_received"
// ----------------------------------------------------------------------------
+extern "C" {
static void target_drag_data_received( GtkWidget *WXUNUSED(widget),
- GdkDragContext *context,
- gint x,
- gint y,
- GtkSelectionData *data,
- guint WXUNUSED(info),
- guint time )
+ GdkDragContext *context,
+ gint x,
+ gint y,
+ GtkSelectionData *data,
+ guint WXUNUSED(info),
+ guint time,
+ wxDropTarget *drop_target )
{
- printf( "data receive at: %d,%d.\n", x, y );
-
- if ((data->length >= 0) && (data->format == 8))
+ if (g_isIdle) wxapp_install_idle_handler();
+
+ /* Owen Taylor: "call gtk_drag_finish() with
+ success == TRUE" */
+
+ if ((data->length <= 0) || (data->format != 8))
{
- wxString str = (const char*)data->data;
- printf( "Received %s\n.", WXSTRINGCAST str );
- gtk_drag_finish( context, TRUE, FALSE, time );
+ /* negative data length and non 8-bit data format
+ qualifies for junk */
+ gtk_drag_finish (context, FALSE, FALSE, time);
+
return;
}
-
- gtk_drag_finish (context, FALSE, FALSE, time);
+
+ wxLogTrace(TRACE_DND, wxT( "Drop target: data received event") );
+
+ /* inform the wxDropTarget about the current GtkSelectionData.
+ this is only valid for the duration of this call */
+ drop_target->SetDragData( data );
+
+ wxDragResult result = ConvertFromGTK(context->action);
+
+ if ( wxIsDragResultOk( drop_target->OnData( x, y, result ) ) )
+ {
+ wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned TRUE") );
+
+ /* tell GTK that data transfer was successful */
+ gtk_drag_finish( context, TRUE, FALSE, time );
+ }
+ else
+ {
+ wxLogTrace(TRACE_DND, wxT( "Drop target: OnData returned FALSE") );
+
+ /* tell GTK that data transfer was not successful */
+ gtk_drag_finish( context, FALSE, FALSE, time );
+ }
+
+ /* after this, invalidate the drop_target's drag data */
+ drop_target->SetDragData( NULL );
+}
}
-// ----------------------------------------------------------------------------
+//----------------------------------------------------------------------------
// wxDropTarget
-// ----------------------------------------------------------------------------
+//----------------------------------------------------------------------------
-wxDropTarget::wxDropTarget()
+wxDropTarget::wxDropTarget( wxDataObject *data )
+ : wxDropTargetBase( data )
{
+ m_firstMotion = true;
+ m_dragContext = NULL;
+ m_dragWidget = NULL;
+ m_dragData = NULL;
+ m_dragTime = 0;
}
-wxDropTarget::~wxDropTarget()
+wxDragResult wxDropTarget::OnDragOver( wxCoord WXUNUSED(x),
+ wxCoord WXUNUSED(y),
+ wxDragResult def )
{
-}
+ // GetMatchingPair() checks for m_dataObject too, no need to do it here
-void wxDropTarget::OnEnter()
-{
+ // disable the debug message from GetMatchingPair() by passing true to it
+ return (GetMatchingPair(true) != (GdkAtom) 0) ? def : wxDragNone;
}
-void wxDropTarget::OnLeave()
+bool wxDropTarget::OnDrop( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y) )
{
+ if (!m_dataObject)
+ return false;
+
+ return (GetMatchingPair() != (GdkAtom) 0);
}
-bool wxDropTarget::OnMove( int x, int y )
+wxDragResult wxDropTarget::OnData( wxCoord WXUNUSED(x), wxCoord WXUNUSED(y),
+ wxDragResult def )
{
- printf( "generic move %d %d.\n", x, y );
-
- return TRUE;
+ if (!m_dataObject)
+ return wxDragNone;
+
+ if (GetMatchingPair() == (GdkAtom) 0)
+ return wxDragNone;
+
+ return GetData() ? def : wxDragNone;
}
-bool wxDropTarget::OnDrop( int x, int y )
+GdkAtom wxDropTarget::GetMatchingPair(bool quiet)
{
- printf( "generic drop %d %d.\n", x, y );
-
- return TRUE;
-}
+ if (!m_dataObject)
+ return (GdkAtom) 0;
+
+ if (!m_dragContext)
+ return (GdkAtom) 0;
-bool wxDropTarget::IsSupported( wxDataFormat format )
-{
- printf( "generic is supported.\n" );
-
- 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 );
+ GdkAtom formatAtom = GPOINTER_TO_INT(child->data);
+ wxDataFormat format( formatAtom );
+
+ if ( !quiet )
+ {
+ wxLogTrace(TRACE_DND, wxT("Drop target: drag has format: %s"),
+ format.GetId().c_str());
+ }
+
+ if (m_dataObject->IsSupportedFormat( format ))
+ return formatAtom;
child = child->next;
}
-
-
- return TRUE;
+
+ return (GdkAtom) 0;
}
-
-bool wxDropTarget::GetData( wxDataObject *data )
+
+bool wxDropTarget::GetData()
{
- return FALSE;
+ if (!m_dragData)
+ return false;
+
+ if (!m_dataObject)
+ return false;
+
+ wxDataFormat dragFormat( m_dragData->target );
+
+ if (!m_dataObject->IsSupportedFormat( dragFormat ))
+ return false;
+
+ m_dataObject->SetData( dragFormat, (size_t)m_dragData->length, (const void*)m_dragData->data );
+
+ return true;
}
-
+
void wxDropTarget::UnregisterWidget( GtkWidget *widget )
{
- wxCHECK_RET( widget != NULL, "unregister widget is NULL" );
-
- gtk_drag_dest_set( widget,
- (GtkDestDefaults) 0,
- (GtkTargetEntry*) NULL,
- 0,
- (GdkDragAction) 0 );
-
+ wxCHECK_RET( widget != NULL, wxT("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, "register widget is NULL" );
-
- GtkTargetEntry format;
- format.info = 0;
- format.flags = 0;
- char buf[100];
- strcpy( buf, "text/plain" );
- format.target = buf;
-
+ wxCHECK_RET( widget != NULL, wxT("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,
- GTK_DEST_DEFAULT_ALL,
- &format,
- 1,
- (GdkDragAction)(GDK_ACTION_COPY | GDK_ACTION_MOVE) );
-
+ (GtkDestDefaults) 0, /* no default behaviour */
+ 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 );
}
-//-------------------------------------------------------------------------
-// wxTextDropTarget
-//-------------------------------------------------------------------------
-
-bool wxTextDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
-{
- printf( "text move.\n" );
-
- return IsSupported( wxDF_TEXT ); // same as "TEXT"
-}
-
-bool wxTextDropTarget::OnDrop( int x, int y )
-{
- printf( "text drop.\n" );
-
- if (!IsSupported( wxDF_TEXT )) return FALSE;
-
- wxTextDataObject data;
- if (!GetData( &data )) return FALSE;
-
- return OnDropText( x, y, data.GetText() );
-}
-
-//-------------------------------------------------------------------------
-// wxPrivateDropTarget
-//-------------------------------------------------------------------------
-
-wxPrivateDropTarget::wxPrivateDropTarget()
-{
- m_id = wxTheApp->GetAppName();
-}
+//----------------------------------------------------------------------------
+// "drag_data_get"
+//----------------------------------------------------------------------------
-wxPrivateDropTarget::wxPrivateDropTarget( const wxString &id )
+extern "C" {
+static void
+source_drag_data_get (GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ GtkSelectionData *selection_data,
+ guint WXUNUSED(info),
+ guint WXUNUSED(time),
+ wxDropSource *drop_source )
{
- m_id = id;
-}
+ if (g_isIdle) wxapp_install_idle_handler();
-bool wxPrivateDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
-{
- return IsSupported( m_id );
-}
+ wxDataFormat format( selection_data->target );
-bool wxPrivateDropTarget::OnDrop( int x, int y )
-{
- if (!IsSupported( m_id )) return FALSE;
+ wxLogTrace(TRACE_DND, wxT("Drop source: format requested: %s"),
+ format.GetId().c_str());
- wxPrivateDataObject data;
- if (!GetData( &data )) return FALSE;
-
- return OnDropData( x, y, data.GetData(), data.GetSize() );
-}
+ drop_source->m_retValue = wxDragCancel;
-//----------------------------------------------------------------------------
-// A drop target which accepts files (dragged from File Manager or Explorer)
-//----------------------------------------------------------------------------
+ wxDataObject *data = drop_source->GetDataObject();
-bool wxFileDropTarget::OnMove( int WXUNUSED(x), int WXUNUSED(y) )
-{
- return IsSupported( wxDF_FILENAME ); // same as "file:ALL"
-}
-
-bool wxFileDropTarget::OnDrop( int x, int y )
-{
- if (!IsSupported( wxDF_FILENAME )) return FALSE;
-
- 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();
- char *text = WXSTRINGCAST data.GetFiles();
- for ( i = 0; i < size; i++)
- if (text[i] == 0) number++;
-
- if (number == 0) return TRUE;
-
- char **files = new char*[number];
-
- text = WXSTRINGCAST data.GetFiles();
- for (i = 0; i < number; i++)
+ if (!data)
{
- files[i] = text;
- int len = strlen( text );
- text += len+1;
+ wxLogTrace(TRACE_DND, wxT("Drop source: no data object") );
+ return;
}
- bool ret = OnDropFiles( x, y, number, files );
-
- free( files );
-
- return ret;
-}
+ if (!data->IsSupportedFormat(format))
+ {
+ wxLogTrace(TRACE_DND, wxT("Drop source: unsupported format") );
+ return;
+ }
-//-------------------------------------------------------------------------
-// wxDropSource
-//-------------------------------------------------------------------------
+ if (data->GetDataSize(format) == 0)
+ {
+ wxLogTrace(TRACE_DND, wxT("Drop source: empty data") );
+ return;
+ }
+ size_t size = data->GetDataSize(format);
-wxDropSource::wxDropSource( wxWindow *win, const wxIcon &go, const wxIcon &stop )
-{
- g_blockEventsOnDrag = 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;
+// printf( "data size: %d.\n", (int)data_size );
- 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 );
-}
+ guchar *d = new guchar[size];
-wxDropSource::wxDropSource( wxDataObject *data, wxWindow *win, const wxIcon &go, const wxIcon &stop )
-{
- g_blockEventsOnDrag = 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
+ if (!data->GetDataHere( format, (void*)d ))
{
- m_data = (wxDataBroker*) NULL;
+ delete[] d;
+ return;
}
- 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 );
-}
+#if wxUSE_THREADS
+ /* disable GUI threads */
+#endif
-wxDropSource::wxDropSource( wxDataBroker *data, wxWindow *win )
-{
- g_blockEventsOnDrag = TRUE;
-
- m_window = win;
- m_widget = win->m_widget;
- if (win->m_wxwindow) m_widget = win->m_wxwindow;
- m_retValue = wxDragCancel;
-
- m_data = data;
+ gtk_selection_data_set( selection_data,
+ selection_data->target,
+ 8, // 8-bit
+ d,
+ size );
- m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
- m_goaheadCursor = wxCursor( wxCURSOR_HAND );
-}
+#if wxUSE_THREADS
+ /* enable GUI threads */
+#endif
-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;
- }
+ delete[] d;
}
-
-void wxDropSource::SetData( wxDataBroker *data )
-{
- if (m_data) delete m_data;
-
- m_data = data;
}
-wxDropSource::~wxDropSource(void)
-{
- if (m_data) delete m_data;
+//----------------------------------------------------------------------------
+// "drag_data_delete"
+//----------------------------------------------------------------------------
- g_blockEventsOnDrag = FALSE;
-}
-
-wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
+extern "C" {
+static void source_drag_data_delete( GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *WXUNUSED(drop_source) )
{
- wxASSERT_MSG( m_data, "wxDragSource: no data" );
-
- if (!m_data) return (wxDragResult) wxDragNone;
-
- static GtkWidget *drag_icon = (GtkWidget*) NULL;
- static GtkWidget *drop_icon = (GtkWidget*) NULL;
-
- GdkPoint hotspot_1 = {0,-5 };
-
- if (!drag_icon)
- {
-/*
- drag_icon = shape_create_icon ( m_stopIcon,
- 440, 140, 0,0, GTK_WINDOW_POPUP);
-
- gtk_signal_connect (GTK_OBJECT (drag_icon), "destroy",
- GTK_SIGNAL_FUNC(gtk_widget_destroyed),
- &drag_icon);
-
- gtk_widget_hide (drag_icon);
-*/
- }
-
- GdkPoint hotspot_2 = {-5,-5};
-
- if (!drop_icon)
- {
-/*
- drop_icon = shape_create_icon ( m_goIcon,
- 440, 140, 0,0, GTK_WINDOW_POPUP);
-
- gtk_signal_connect (GTK_OBJECT (drop_icon), "destroy",
- GTK_SIGNAL_FUNC(gtk_widget_destroyed),
- &drop_icon);
-
- gtk_widget_hide (drop_icon);
-*/
- }
-
+ if (g_isIdle)
+ wxapp_install_idle_handler();
- return FALSE;
+ // printf( "Drag source: drag_data_delete\n" );
}
-
-void wxDropSource::RegisterWindow(void)
-{
- if (!m_data) return;
}
-void wxDropSource::UnregisterWindow(void)
-{
- if (!m_widget) return;
-}
+//----------------------------------------------------------------------------
+// "drag_begin"
+//----------------------------------------------------------------------------
+extern "C" {
+static void source_drag_begin( GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *WXUNUSED(drop_source) )
+{
+ if (g_isIdle)
+ wxapp_install_idle_handler();
-#else // NEW_CODE
+ // printf( "Drag source: drag_begin.\n" );
+}
+}
//----------------------------------------------------------------------------
-// forward
+// "drag_end"
//----------------------------------------------------------------------------
-GtkWidget *shape_create_icon ( const wxIcon &shape,
- gint x,
- gint y,
- gint px,
- gint py,
- gint window_type);
+extern "C" {
+static void source_drag_end( GtkWidget *WXUNUSED(widget),
+ GdkDragContext *WXUNUSED(context),
+ wxDropSource *drop_source )
+{
+ if (g_isIdle) wxapp_install_idle_handler();
-//-----------------------------------------------------------------------------
-// globals
-//-----------------------------------------------------------------------------
+ // printf( "Drag source: drag_end.\n" );
-wxDropSource *gs_currentDropSource = (wxDropSource*) NULL;
+ drop_source->m_waiting = false;
+}
+}
//-----------------------------------------------------------------------------
-// "drop_enter_event"
+// "configure_event" from m_iconWindow
//-----------------------------------------------------------------------------
-static void gtk_target_enter_callback( GtkWidget *WXUNUSED(widget),
- GdkEventDropEnter *WXUNUSED(event),
- wxDropTarget *target )
+extern "C" {
+static gint
+gtk_dnd_window_configure_callback( GtkWidget *WXUNUSED(widget), GdkEventConfigure *WXUNUSED(event), wxDropSource *source )
{
- if (target)
- target->OnEnter();
-}
+ if (g_isIdle)
+ wxapp_install_idle_handler();
-//-----------------------------------------------------------------------------
-// "drop_leave_event"
-//-----------------------------------------------------------------------------
+ source->GiveFeedback( ConvertFromGTK(source->m_dragContext->action) );
-static void gtk_target_leave_callback( GtkWidget *WXUNUSED(widget),
- GdkEventDropLeave *WXUNUSED(event),
- wxDropTarget *target )
-{
- if (target)
- target->OnLeave();
+ return 0;
+}
}
-//-----------------------------------------------------------------------------
-// "drop_data_available_event"
-//-----------------------------------------------------------------------------
+//---------------------------------------------------------------------------
+// wxDropSource
+//---------------------------------------------------------------------------
-static void gtk_target_callback( GtkWidget *widget,
- GdkEventDropDataAvailable *event,
- wxDropTarget *target )
+wxDropSource::wxDropSource(wxWindow *win,
+ const wxIcon &iconCopy,
+ const wxIcon &iconMove,
+ const wxIcon &iconNone)
{
- if (target)
- {
- int x = 0;
- int y = 0;
- gdk_window_get_pointer( widget->window, &x, &y, (GdkModifierType *) NULL );
-/*
- printf( "Drop data is of type %s.\n", event->data_type );
-*/
- target->OnDrop( x, y, (const void*)event->data, (size_t)event->data_numbytes );
- }
-
-/*
- g_free (event->data);
- g_free (event->data_type);
-*/
-}
+ m_waiting = true;
-// ----------------------------------------------------------------------------
-// wxDropTarget
-// ----------------------------------------------------------------------------
+ m_iconWindow = NULL;
-wxDropTarget::wxDropTarget()
-{
- m_format = (wxDataFormat*) NULL;
-}
+ m_window = win;
+ m_widget = win->m_widget;
+ if (win->m_wxwindow) m_widget = win->m_wxwindow;
-wxDropTarget::~wxDropTarget()
-{
- if (m_format) delete m_format;
-}
+ m_retValue = wxDragCancel;
-wxDataFormat &wxDropTarget::GetFormat(size_t n) const
-{
- return (*m_format);
+ SetIcons(iconCopy, iconMove, iconNone);
}
-void wxDropTarget::UnregisterWidget( GtkWidget *widget )
+wxDropSource::wxDropSource(wxDataObject& data,
+ wxWindow *win,
+ const wxIcon &iconCopy,
+ const wxIcon &iconMove,
+ const wxIcon &iconNone)
{
- if (!widget) return;
-
- gtk_signal_disconnect_by_func( GTK_OBJECT(widget),
- GTK_SIGNAL_FUNC(gtk_target_callback), (gpointer) this );
+ m_waiting = true;
- gtk_widget_dnd_drop_set( widget, FALSE, (gchar **) NULL, 0, FALSE );
-}
+ SetData( data );
-void wxDropTarget::RegisterWidget( GtkWidget *widget )
-{
- wxString formats;
- int valid = 0;
-
- for ( size_t i = 0; i < GetFormatCount(); i++ )
- {
- switch (GetFormat(i).GetType())
- {
- case wxDF_TEXT:
- {
- if (i > 0) formats += ";";
- formats += "text/plain";
- valid++;
- break;
- }
- case wxDF_FILENAME:
- {
- if (i > 0) formats += ";";
- formats += "file:ALL";
- valid++;
- break;
- }
- case wxDF_PRIVATE:
- {
- if (i > 0) formats += ";";
- wxPrivateDropTarget *pdt = (wxPrivateDropTarget *)this;
- formats += pdt->GetId();
- valid++;
- break;
- }
- default:
- break;
- }
- }
-
- char *str = WXSTRINGCAST formats;
-
- gtk_widget_dnd_drop_set( widget, TRUE, &str, valid, FALSE );
-
- gtk_signal_connect( GTK_OBJECT(widget), "drop_data_available_event",
- GTK_SIGNAL_FUNC(gtk_target_callback), (gpointer) this );
-
- gtk_signal_connect( GTK_OBJECT(widget), "drop_enter_event",
- GTK_SIGNAL_FUNC(gtk_target_enter_callback), (gpointer) this );
-
- gtk_signal_connect( GTK_OBJECT(widget), "drop_leave_event",
- GTK_SIGNAL_FUNC(gtk_target_leave_callback), (gpointer) this );
-}
+ m_iconWindow = NULL;
-// ----------------------------------------------------------------------------
-// wxTextDropTarget
-// ----------------------------------------------------------------------------
+ m_window = win;
+ m_widget = win->m_widget;
+ if (win->m_wxwindow) m_widget = win->m_wxwindow;
-wxTextDropTarget::wxTextDropTarget()
-{
- m_format = new wxDataFormat( wxDF_TEXT );
-}
+ m_retValue = wxDragCancel;
-bool wxTextDropTarget::OnDrop( long x, long y, const void *data, size_t WXUNUSED(size) )
-{
- OnDropText( x, y, (const char*)data );
- return TRUE;
+ SetIcons(iconCopy, iconMove, iconNone);
}
-bool wxTextDropTarget::OnDropText( long x, long y, const char *psz )
+void wxDropSource::SetIcons(const wxIcon &iconCopy,
+ const wxIcon &iconMove,
+ const wxIcon &iconNone)
{
-/*
- printf( "Got dropped text: %s.\n", psz );
- printf( "At x: %d, y: %d.\n", (int)x, (int)y );
-*/
- return TRUE;
-}
+ m_iconCopy = iconCopy;
+ m_iconMove = iconMove;
+ m_iconNone = iconNone;
-size_t wxTextDropTarget::GetFormatCount() const
-{
- return 1;
+ if ( !m_iconCopy.IsOk() )
+ m_iconCopy = wxIcon(page_xpm);
+ if ( !m_iconMove.IsOk() )
+ m_iconMove = m_iconCopy;
+ if ( !m_iconNone.IsOk() )
+ m_iconNone = m_iconCopy;
}
-// ----------------------------------------------------------------------------
-// wxPrivateDropTarget
-// ----------------------------------------------------------------------------
-
-wxPrivateDropTarget::wxPrivateDropTarget()
+wxDropSource::~wxDropSource()
{
- m_id = wxTheApp->GetAppName();
- m_format = new wxDataFormat( m_id );
}
-void wxPrivateDropTarget::SetId( const wxString& id )
+void wxDropSource::PrepareIcon( int action, GdkDragContext *context )
{
- m_id = id;
- m_format->SetId( id );
-}
+ // get the right icon to display
+ wxIcon *icon = NULL;
+ if ( action & GDK_ACTION_MOVE )
+ icon = &m_iconMove;
+ else if ( action & GDK_ACTION_COPY )
+ icon = &m_iconCopy;
+ else
+ icon = &m_iconNone;
-size_t wxPrivateDropTarget::GetFormatCount() const
-{
- return 1;
-}
+ GdkBitmap *mask;
+ if ( icon->GetMask() )
+ mask = icon->GetMask()->GetBitmap();
+ else
+ mask = NULL;
-// ----------------------------------------------------------------------------
-// wxFileDropTarget
-// ----------------------------------------------------------------------------
+ GdkPixmap *pixmap = icon->GetPixmap();
-wxFileDropTarget::wxFileDropTarget()
-{
- m_format = new wxDataFormat( wxDF_FILENAME );
-}
+ gint width,height;
+ gdk_window_get_size (pixmap, &width, &height);
-bool wxFileDropTarget::OnDropFiles( long x, long y, size_t nFiles, const char * const aszFiles[] )
-{
- printf( "Got %d dropped files.\n", (int)nFiles );
- printf( "At x: %d, y: %d.\n", (int)x, (int)y );
+ GdkColormap *colormap = gtk_widget_get_colormap( m_widget );
+ gtk_widget_push_visual (gdk_colormap_get_visual (colormap));
+ gtk_widget_push_colormap (colormap);
- for (size_t i = 0; i < nFiles; i++)
- {
- printf( aszFiles[i] );
- printf( "\n" );
- }
-
- return TRUE;
-}
+ m_iconWindow = gtk_window_new (GTK_WINDOW_POPUP);
+ gtk_widget_set_events (m_iconWindow, GDK_BUTTON_PRESS_MASK | GDK_BUTTON_RELEASE_MASK);
+ gtk_widget_set_app_paintable (GTK_WIDGET (m_iconWindow), TRUE);
-bool wxFileDropTarget::OnDrop(long x, long y, const void *data, size_t size )
-{
- size_t number = 0;
- size_t i;
- char *text = (char*) data;
- for ( i = 0; i < size; i++)
- if (text[i] == 0) number++;
-
- if (number == 0) return TRUE;
-
- char **files = new char*[number];
-
- text = (char*) data;
- for (i = 0; i < number; i++)
- {
- files[i] = text;
- int len = strlen( text );
- text += len+1;
- }
+ gtk_widget_pop_visual ();
+ gtk_widget_pop_colormap ();
- bool ret = OnDropFiles( x, y, 1, files );
-
- free( files );
-
- return ret;
-}
+ gtk_widget_set_usize (m_iconWindow, width, height);
+ gtk_widget_realize (m_iconWindow);
-size_t wxFileDropTarget::GetFormatCount() const
-{
- return 1;
-}
+ gtk_signal_connect( GTK_OBJECT(m_iconWindow), "configure_event",
+ GTK_SIGNAL_FUNC(gtk_dnd_window_configure_callback), (gpointer)this );
-//-------------------------------------------------------------------------
-// wxDropSource
-//-------------------------------------------------------------------------
+ gdk_window_set_back_pixmap (m_iconWindow->window, pixmap, FALSE);
-static void
-shape_motion (GtkWidget *widget,
- GdkEventMotion * /*event*/);
-
-//-----------------------------------------------------------------------------
-// "drag_request_event"
-//-----------------------------------------------------------------------------
+ if (mask)
+ gtk_widget_shape_combine_mask (m_iconWindow, mask, 0, 0);
-void gtk_drag_callback( GtkWidget *widget, GdkEventDragRequest *event, wxDropSource *source )
-{
- wxDataBroker *data = source->m_data;
-
- if (!data) return;
-
- wxNode *node = data->m_dataObjects.First();
- {
- wxDataObject *dobj = (wxDataObject*) node->Data();
-
- if ((strcmp(event->data_type,"file:ALL") == 0) &&
- (dobj->GetFormat().GetType() == wxDF_FILENAME))
- {
- wxFileDataObject *file_object = (wxFileDataObject*) dobj;
-
- wxString text = file_object->GetFiles();
-
- char *s = WXSTRINGCAST text;
-
- gtk_widget_dnd_data_set( widget,
- (GdkEvent*)event,
- (unsigned char*) s,
- (int) text.Length()+1 );
-
- source->m_retValue = wxDragCopy;
-
- return;
- }
-
- if ((strcmp(event->data_type,"text/plain") == 0) &&
- (dobj->GetFormat().GetType() == wxDF_TEXT))
- {
- wxTextDataObject *text_object = (wxTextDataObject*) dobj;
-
- wxString text = text_object->GetText();
-
- char *s = WXSTRINGCAST text;
-
- gtk_widget_dnd_data_set( widget,
- (GdkEvent*)event,
- (unsigned char*) s,
- (int) text.Length()+1 );
-
- source->m_retValue = wxDragCopy;
-
- return;
- }
-
- if (dobj->GetFormat().GetType() == wxDF_PRIVATE)
- {
- wxPrivateDataObject *pdo = (wxPrivateDataObject*) dobj;
-
- if (pdo->GetId() == event->data_type)
- {
- gtk_widget_dnd_data_set( widget,
- (GdkEvent*)event,
- (unsigned char*) pdo->GetData(),
- (int) pdo->GetSize() );
-
- source->m_retValue = wxDragCopy;
-
- return;
- }
- }
-
- node = node->Next();
- }
+ gtk_drag_set_icon_widget( context, m_iconWindow, 0, 0 );
}
-wxDropSource::wxDropSource( wxWindow *win, const wxIcon &go, const wxIcon &stop )
+wxDragResult wxDropSource::DoDragDrop(int flags)
{
- g_blockEventsOnDrag = 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;
+ wxCHECK_MSG( m_data && m_data->GetFormatCount(), wxDragNone,
+ wxT("Drop source: no data") );
- 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 );
-}
+ // still in drag
+ if (g_blockEventsOnDrag)
+ return wxDragNone;
-wxDropSource::wxDropSource( wxDataObject *data, wxWindow *win, const wxIcon &go, const wxIcon &stop )
-{
- g_blockEventsOnDrag = 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;
- }
+ // don't start dragging if no button is down
+ if (g_lastButtonNumber == 0)
+ return wxDragNone;
- 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 )
-{
- g_blockEventsOnDrag = TRUE;
-
- m_window = win;
- m_widget = win->m_widget;
- if (win->m_wxwindow) m_widget = win->m_wxwindow;
- m_retValue = wxDragCancel;
-
- m_data = data;
+ // we can only start a drag after a mouse event
+ if (g_lastMouseEvent == NULL)
+ return wxDragNone;
- m_defaultCursor = wxCursor( wxCURSOR_NO_ENTRY );
- m_goaheadCursor = wxCursor( wxCURSOR_HAND );
-}
+ // disabled for now
+ g_blockEventsOnDrag = true;
-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;
- }
-}
+ RegisterWindow();
-void wxDropSource::SetData( wxDataBroker *data )
-{
- if (m_data) delete m_data;
-
- m_data = data;
-}
+ m_waiting = true;
-wxDropSource::~wxDropSource(void)
-{
- if (m_data) delete m_data;
+ GtkTargetList *target_list = gtk_target_list_new( NULL, 0 );
- g_blockEventsOnDrag = FALSE;
-}
-
-wxDragResult wxDropSource::DoDragDrop( bool WXUNUSED(bAllowMove) )
-{
- if (gdk_dnd.dnd_grabbed) return (wxDragResult) wxDragNone;
- if (gdk_dnd.drag_really) return (wxDragResult) wxDragNone;
-
- wxASSERT_MSG( m_data, "wxDragSource: no data" );
-
- if (!m_data) return (wxDragResult) wxDragNone;
-
- static GtkWidget *drag_icon = (GtkWidget*) NULL;
- static GtkWidget *drop_icon = (GtkWidget*) NULL;
-
- GdkPoint hotspot_1 = {0,-5 };
-
- if (!drag_icon)
+ wxDataFormat *array = new wxDataFormat[ m_data->GetFormatCount() ];
+ m_data->GetAllFormats( array );
+ size_t count = m_data->GetFormatCount();
+ for (size_t i = 0; i < count; i++)
{
- drag_icon = shape_create_icon ( m_stopIcon,
- 440, 140, 0,0, GTK_WINDOW_POPUP);
-
- gtk_signal_connect (GTK_OBJECT (drag_icon), "destroy",
- GTK_SIGNAL_FUNC(gtk_widget_destroyed),
- &drag_icon);
-
- gtk_widget_hide (drag_icon);
+ GdkAtom atom = array[i];
+ wxLogTrace(TRACE_DND, wxT("Drop source: Supported atom %s"), gdk_atom_name( atom ));
+ gtk_target_list_add( target_list, atom, 0, 0 );
}
-
- GdkPoint hotspot_2 = {-5,-5};
-
- if (!drop_icon)
- {
- drop_icon = shape_create_icon ( m_goIcon,
- 440, 140, 0,0, GTK_WINDOW_POPUP);
-
- gtk_signal_connect (GTK_OBJECT (drop_icon), "destroy",
- GTK_SIGNAL_FUNC(gtk_widget_destroyed),
- &drop_icon);
-
- gtk_widget_hide (drop_icon);
- }
-
-
- gdk_dnd_set_drag_shape( drag_icon->window,
- &hotspot_1,
- drop_icon->window,
- &hotspot_2);
-
-
- GdkWindowPrivate *wp = (GdkWindowPrivate*) m_widget->window;
-
- RegisterWindow();
-
- gdk_dnd.drag_perhaps = TRUE;
-
- gdk_dnd.dnd_drag_start.x = 5;
- gdk_dnd.dnd_drag_start.y = 5;
- gdk_dnd.real_sw = wp;
-
- if (gdk_dnd.drag_startwindows)
- {
- g_free( gdk_dnd.drag_startwindows );
- gdk_dnd.drag_startwindows = (GdkWindow **) NULL;
- }
- gdk_dnd.drag_numwindows = gdk_dnd.drag_really = 0;
-
- XWindowAttributes dnd_winattr;
- XGetWindowAttributes( gdk_display, wp->xwindow, &dnd_winattr );
- wp->dnd_drag_savedeventmask = dnd_winattr.your_event_mask;
-
- gdk_dnd_drag_addwindow( m_widget->window );
-
- GdkEventDragBegin ev;
- ev.type = GDK_DRAG_BEGIN;
- ev.window = m_widget->window;
- ev.u.allflags = 0;
- ev.u.flags.protocol_version = DND_PROTOCOL_VERSION;
-
- gdk_event_put( (GdkEvent*)&ev );
-
- XGrabPointer( gdk_display, wp->xwindow, False,
- ButtonMotionMask | ButtonPressMask | ButtonReleaseMask | PointerMotionMask,
- GrabModeAsync, GrabModeAsync, gdk_root_window, None, CurrentTime );
-
- gdk_dnd_set_drag_cursors( m_defaultCursor.GetCursor(), m_goaheadCursor.GetCursor() );
-
- gdk_dnd.dnd_grabbed = TRUE;
- gdk_dnd.drag_really = 1;
-
- int x = 0;
- int y = 0;
- wxGetMousePosition( &x, &y );
-
- gdk_dnd_display_drag_cursor( x, y, FALSE, TRUE );
-
- gs_currentDropSource = this;
-
- while (gdk_dnd.drag_really || gdk_dnd.drag_perhaps) wxYield();
-
- gs_currentDropSource = (wxDropSource*) NULL;
-
- UnregisterWindow();
-
- g_blockEventsOnDrag = FALSE;
-
- return m_retValue;
-}
+ delete[] array;
-void wxDropSource::RegisterWindow(void)
-{
- if (!m_data) return;
+ int action = GDK_ACTION_COPY;
+ if ( flags & wxDrag_AllowMove )
+ action |= GDK_ACTION_MOVE;
- wxString formats;
-
- wxNode *node = m_data->m_dataObjects.First();
- while (node)
- {
- wxDataObject* dobj = (wxDataObject*) node->Data();
-
- switch (dobj->GetFormat().GetType())
- {
- case wxDF_TEXT:
- {
- formats += "text/plain";
- break;
- }
- case wxDF_FILENAME:
- {
- formats += "file:ALL";
- break;
- }
- case wxDF_PRIVATE:
- {
- wxPrivateDataObject* pdo = (wxPrivateDataObject*) m_data;
- formats += pdo->GetId();
- break;
- }
- default:
- break;
- }
- node = node->Next();
- }
-
- char *str = WXSTRINGCAST formats;
-
- gtk_widget_dnd_drag_set( m_widget, TRUE, &str, 1 );
+ // 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;
- gtk_signal_connect( GTK_OBJECT(m_widget), "drag_request_event",
- GTK_SIGNAL_FUNC(gtk_drag_callback), (gpointer)this );
-}
+ GdkDragContext *context = gtk_drag_begin( m_widget,
+ target_list,
+ (GdkDragAction)action,
+ g_lastButtonNumber, // number of mouse button which started drag
+ (GdkEvent*) g_lastMouseEvent );
-void wxDropSource::UnregisterWindow(void)
-{
- if (!m_widget) return;
-
- gtk_widget_dnd_drag_set( m_widget, FALSE, (gchar **) NULL, 0 );
-
- gtk_signal_disconnect_by_data( GTK_OBJECT(m_widget), (gpointer)this );
-}
+ m_dragContext = context;
+ PrepareIcon( action, context );
-/*
- * Shaped Windows
- */
-static GdkWindow *root_win = (GdkWindow*) NULL;
+ while (m_waiting)
+ gtk_main_iteration();
-typedef struct _cursoroffset {gint x,y;} CursorOffset;
+ m_retValue = ConvertFromGTK(context->action);
+ if ( m_retValue == wxDragNone )
+ m_retValue = wxDragCancel;
-static void
-shape_pressed (GtkWidget *widget, GdkEventButton *event)
-{
- CursorOffset *p;
-
- /* ignore double and triple click */
- if (event->type != GDK_BUTTON_PRESS)
- return;
-
- p = (CursorOffset *)gtk_object_get_user_data (GTK_OBJECT(widget));
- p->x = (int) event->x;
- p->y = (int) event->y;
-
- gtk_grab_add (widget);
- gdk_pointer_grab (widget->window, TRUE,
- (GdkEventMask)
- (GDK_BUTTON_RELEASE_MASK |
- GDK_BUTTON_MOTION_MASK |
- GDK_POINTER_MOTION_HINT_MASK),
- (GdkWindow*)NULL,
- (GdkCursor*) NULL, 0);
-}
+ g_blockEventsOnDrag = false;
+ UnregisterWindow();
-static void
-shape_released (GtkWidget *widget)
-{
- gtk_grab_remove (widget);
- gdk_pointer_ungrab (0);
+ return m_retValue;
}
-static void
-shape_motion (GtkWidget *widget,
- GdkEventMotion * /*event*/ )
+void wxDropSource::RegisterWindow()
{
- gint xp, yp;
- CursorOffset * p;
- GdkModifierType mask;
-
- p = (CursorOffset *)gtk_object_get_user_data (GTK_OBJECT (widget));
-
- /*
- * Can't use event->x / event->y here
- * because I need absolute coordinates.
- */
-
- gdk_window_get_pointer (root_win, &xp, &yp, &mask);
- gtk_widget_set_uposition (widget, xp - p->x, yp - p->y);
-
- if (gs_currentDropSource) gs_currentDropSource->GiveFeedback( wxDragCopy, FALSE );
+ 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 );
+
}
-GtkWidget *
-shape_create_icon (const wxIcon &shape,
- gint x,
- gint y,
- gint px,
- gint py,
- gint window_type)
+void wxDropSource::UnregisterWindow()
{
- /*
- * GDK_WINDOW_TOPLEVEL works also, giving you a title border
- */
- GtkWidget *window = gtk_window_new ((GtkWindowType)window_type);
-
- GtkWidget *fixed = gtk_fixed_new ();
- gtk_widget_set_usize (fixed, 100,100);
- gtk_container_add (GTK_CONTAINER (window), fixed);
- gtk_widget_show (fixed);
-
- gtk_widget_set_events (window,
- gtk_widget_get_events (window) |
- GDK_BUTTON_MOTION_MASK |
- GDK_POINTER_MOTION_HINT_MASK |
- GDK_BUTTON_PRESS_MASK);
-
- gtk_widget_realize (window);
-
- GdkBitmap *mask = (GdkBitmap*) NULL;
- if (shape.GetMask()) mask = shape.GetMask()->GetBitmap();
-
- GtkWidget *pixmap = gtk_pixmap_new (shape.GetPixmap(), mask);
- gtk_fixed_put (GTK_FIXED (fixed), pixmap, px,py);
- gtk_widget_show (pixmap);
-
- gtk_widget_shape_combine_mask (window, mask, px,py);
-
-
- gtk_signal_connect (GTK_OBJECT (window), "button_press_event",
- GTK_SIGNAL_FUNC (shape_pressed),NULL);
- gtk_signal_connect (GTK_OBJECT (window), "button_release_event",
- GTK_SIGNAL_FUNC (shape_released),NULL);
- gtk_signal_connect (GTK_OBJECT (window), "motion_notify_event",
- GTK_SIGNAL_FUNC (shape_motion),NULL);
-
- CursorOffset*icon_pos = g_new (CursorOffset, 1);
- gtk_object_set_user_data(GTK_OBJECT(window), icon_pos);
-
- gtk_widget_set_uposition (window, x, y);
- gtk_widget_show (window);
-
- return window;
+ 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
- // NEW_GTK_DND_CODE
-
#endif
-
- // wxUSE_DRAG_AND_DROP
\ No newline at end of file
+ // wxUSE_DRAG_AND_DROP
projects / wxWidgets.git / blobdiff