void updateButtonUnderMouse (const MouseEvent& e)
{
TreeViewItem* newItem = 0;
if (owner.openCloseButtonsVisible)
{
Rectangle<int> pos;
TreeViewItem* item = findItemAt (e.y, pos);
if (item != 0 && e.x < pos.getX() && e.x >= pos.getX() - owner.getIndentSize())
{
newItem = item;
if (! newItem->mightContainSubItems())
newItem = 0;
}
}
if (buttonUnderMouse != newItem)
{
if (buttonUnderMouse != 0 && containsItem (buttonUnderMouse))
{
const Rectangle<int> r (buttonUnderMouse->getItemPosition (false));
repaint (0, r.getY(), r.getX(), buttonUnderMouse->getItemHeight());
}
buttonUnderMouse = newItem;
if (buttonUnderMouse != 0)
{
const Rectangle<int> r (buttonUnderMouse->getItemPosition (false));
repaint (0, r.getY(), r.getX(), buttonUnderMouse->getItemHeight());
}
}
}
void MenuSystem::handleMouseMove(int x, int y) {
if (!_editingDescription) {
ItemID newItemID = findItemAt(x, y);
if (_currItemID != newItemID) {
leaveItem(_currItemID);
_currItemID = newItemID;
enterItem(newItemID);
}
}
}
const String getTooltip()
{
Rectangle<int> pos;
TreeViewItem* const item = findItemAt (getMouseXYRelative().getY(), pos);
if (item != 0)
return item->getTooltip();
return owner.getTooltip();
}
void mouseDoubleClick (const MouseEvent& e)
{
if (e.getNumberOfClicks() != 3) // ignore triple clicks
{
Rectangle<int> pos;
TreeViewItem* const item = findItemAt (e.y, pos);
if (item != 0 && (e.x >= pos.getX() || ! owner.openCloseButtonsVisible))
item->itemDoubleClicked (e.withNewPosition (e.getPosition() - pos.getPosition()));
}
}
void mouseUp (const MouseEvent& e)
{
updateButtonUnderMouse (e);
if (needSelectionOnMouseUp && e.mouseWasClicked())
{
Rectangle<int> pos;
TreeViewItem* const item = findItemAt (e.y, pos);
if (item != 0)
selectBasedOnModifiers (item, e.mods);
}
}
void mouseDrag (const MouseEvent& e)
{
if (isEnabled()
&& ! (isDragging || e.mouseWasClicked()
|| e.getDistanceFromDragStart() < 5
|| e.mods.isPopupMenu()))
{
isDragging = true;
Rectangle<int> pos;
TreeViewItem* const item = findItemAt (e.getMouseDownY(), pos);
if (item != 0 && e.getMouseDownX() >= pos.getX())
{
const String dragDescription (item->getDragSourceDescription());
if (dragDescription.isNotEmpty())
{
DragAndDropContainer* const dragContainer
= DragAndDropContainer::findParentDragContainerFor (this);
if (dragContainer != 0)
{
pos.setSize (pos.getWidth(), item->itemHeight);
Image dragImage (Component::createComponentSnapshot (pos, true));
dragImage.multiplyAllAlphas (0.6f);
Point<int> imageOffset (pos.getPosition() - e.getPosition());
dragContainer->startDragging (dragDescription, &owner, dragImage, true, &imageOffset);
}
else
{
// to be able to do a drag-and-drop operation, the treeview needs to
// be inside a component which is also a DragAndDropContainer.
jassertfalse;
}
}
}
}
}
void mouseDown (const MouseEvent& e)
{
updateButtonUnderMouse (e);
isDragging = false;
needSelectionOnMouseUp = false;
Rectangle<int> pos;
TreeViewItem* const item = findItemAt (e.y, pos);
if (item == 0)
return;
// (if the open/close buttons are hidden, we'll treat clicks to the left of the item
// as selection clicks)
if (e.x < pos.getX() && owner.openCloseButtonsVisible)
{
if (e.x >= pos.getX() - owner.getIndentSize())
item->setOpen (! item->isOpen());
// (clicks to the left of an open/close button are ignored)
}
else
{
// mouse-down inside the body of the item..
if (! owner.isMultiSelectEnabled())
item->setSelected (true, true);
else if (item->isSelected())
needSelectionOnMouseUp = ! e.mods.isPopupMenu();
else
selectBasedOnModifiers (item, e.mods);
if (e.x >= pos.getX())
item->itemClicked (e.withNewPosition (e.getPosition() - pos.getPosition()));
}
}
void MenuSystem::handleMouseClick(int x, int y) {
if (!_editingDescription) {
ItemID id = findItemAt(x, y);
clickItem(id);
}
}
static int canvasFunc( ClientData data, Tcl_Interp *interp,
int objc, Tcl_Obj * const objv[] )
{
const char *cmds[] = { "delete", "configure", "cget", "isMapped",
"getCurrentSize", "update", "raise", "lower",
"create", "itemDelete", "itemShow",
"itemConfigure", "itemCget", "itemCommand",
"affine", "scale", "move", "rotate",
"windowToCanvas", "canvasToWindow",
"findItemAt", "getBounds", "findWithTag",
NULL };
enum cmdIdx { DeleteIdx, ConfigureIdx, CgetIdx, IsMappedIdx,
GetCurSizeIdx, UpdateIdx, RaiseIdx, LowerIdx,
CreateIdx, ItemDeleteIdx, ItemShowIdx,
ItemConfigureIdx, ItemCgetIdx, ItemCommandIdx,
AffineIdx, ScaleIdx, MoveIdx, RotateIdx,
WindowToCanvasIdx, CanvasToWindowIdx,
FindItemAtIdx, GetBoundsIdx, GetIDsFromTagIdx };
CanvasParams *para = (CanvasParams *)data;
GtkWidget *widget = GTK_WIDGET( para->canvas );
int idx;
if( objc < 2 )
{
Tcl_WrongNumArgs( interp, 1, objv, "command" );
return TCL_ERROR;
}
if( Tcl_GetIndexFromObj( interp, objv[1], cmds, "command",
TCL_EXACT, &idx ) != TCL_OK )
return TCL_ERROR;
switch( idx )
{
case DeleteIdx:
return gnoclDelete( interp, widget, objc, objv );
case ConfigureIdx:
{
int ret = TCL_ERROR;
if( gnoclParseAndSetOptions( interp, objc - 1, objv + 1,
canvasOptions, G_OBJECT( widget ) ) == TCL_OK )
{
if( canvasOptions[antialiasedIdx].status
== GNOCL_STATUS_CHANGED )
{
Tcl_SetResult( interp, "antialiasing cannot be changed "
"after creation", TCL_STATIC );
}
else
ret = configure( interp, para, canvasOptions );
}
gnoclClearOptions( canvasOptions );
return ret;
}
break;
case CgetIdx:
{
int idx;
switch( gnoclCget( interp, objc, objv, G_OBJECT( widget ),
canvasOptions, &idx ) )
{
case GNOCL_CGET_ERROR:
return TCL_ERROR;
case GNOCL_CGET_HANDLED:
return TCL_OK;
case GNOCL_CGET_NOTHANDLED:
return cget( interp, para->canvas,
canvasOptions, idx );
}
break;
}
case IsMappedIdx:
return isMapped( interp, widget, objc, objv );
case GetCurSizeIdx:
return getCurSize( interp, widget, objc, objv );
case UpdateIdx:
if( objc != 2 )
{
Tcl_WrongNumArgs( interp, 2, objv, NULL );
return TCL_ERROR;
}
gnome_canvas_update_now( para->canvas );
break;
case CreateIdx:
return canvasCreateItem( interp, objc, objv, para );
case RaiseIdx:
case LowerIdx:
case ItemDeleteIdx:
case ItemShowIdx:
case ItemConfigureIdx:
case ItemCgetIdx:
case ItemCommandIdx:
case AffineIdx:
case ScaleIdx:
case MoveIdx:
case RotateIdx:
case GetBoundsIdx:
case GetIDsFromTagIdx:
{
GPtrArray *items;
int ret;
if( objc < 3 )
{
Tcl_WrongNumArgs( interp, 2, objv,
"tag-or-id ?option val ...?" );
return TCL_ERROR;
}
if( gnoclCanvasItemsFromTagOrId( interp, para,
Tcl_GetString( objv[2] ), &items ) != TCL_OK )
return TCL_ERROR;
switch( idx )
{
case RaiseIdx:
case LowerIdx:
ret = itemRaise( interp, objc, objv, para, items,
idx == RaiseIdx );
break;
case ItemDeleteIdx:
ret = itemDelete( interp, objc, objv, para, items );
break;
case ItemShowIdx:
ret = itemShow( interp, objc, objv, para, items );
break;
case ItemConfigureIdx:
ret = itemConfigure( interp, objc, objv, para, items );
break;
case ItemCgetIdx:
ret = itemCget( interp, objc, objv, para, items );
break;
case ItemCommandIdx:
ret = itemCommand( interp, objc, objv, para, items );
break;
case AffineIdx:
ret = affine( interp, objc, objv, para, items, Affine );
break;
case ScaleIdx:
ret = affine( interp, objc, objv, para, items, Scale );
break;
case MoveIdx:
ret = affine( interp, objc, objv, para, items, Move );
break;
case RotateIdx:
ret = affine( interp, objc, objv, para, items, Rotate );
break;
case GetBoundsIdx:
ret = itemBounds( interp, objc, objv, para, items );
break;
case GetIDsFromTagIdx:
ret = getIDs( interp, objc, objv, para, items );
break;
default:
assert( 0 );
}
if( items )
g_ptr_array_free( items, 0 );
return ret;
}
break;
case WindowToCanvasIdx:
return windowToCanvas( interp, objc, objv, para, 0 );
case CanvasToWindowIdx:
return windowToCanvas( interp, objc, objv, para, 1 );
case FindItemAtIdx:
return findItemAt( interp, objc, objv, para );
}
return TCL_OK;
}