void CFlowTreeView::OnLButtonDown(UINT nFlags, CPoint point)
{
CFEManDoc* pDoc = GetDocument();
Screen *pWorkScreen;
ScreenLink *pWorkLink;
// Left button is pressed. We have several choices.
// 1: Pressed on nothing. Start dragging a selection window.
// 2: Pressed on a Screen. Select the screen and drag it.
// 3: Pressed on a Screen Link. Select the link and drag it.
// 4: Pressed on an already selected Screen. Drag all selected items.
// 5: Pressed on an already selected Screen Link. Drag all selected items.
lastLeftClick = point;
switch(lButtonStatus)
{
case LBS_NORMAL: // Nothing special.
// Find out where I clicked and choose one of the tracking modes.
pWorkScreen = pDoc->PointOnScreenIcon(&point);
pWorkLink = pDoc->PointOnScreenLink(&point);
if(pWorkScreen)
{
// Clicked on a screen icon.
// If nothing selected, OR this screen is not
// selected, clear all other selections and drag this screen.
if((pDoc->GetNumSelectedScreenIcons() == 0) ||
(!pDoc->IsSelectedScreenIcon(pWorkScreen)))
{
pDoc->ClearAllSelectedScreenIcons();
pDoc->SelectScreenIcon(pWorkScreen);
}
// If this screen selected, drag all selected items.
lButtonStatus = LBS_SCREENCLICK;
}
else if (pDoc->PointOnScreenLink(&point))
{
// Clicked on a screen link.
// Clear all screen selections, select the screen we're on
// and the screenlink we're on and drag the link.
pDoc->ClearAllSelectedScreenIcons();
pWorkScreen = pWorkLink->GetMyScreen();
pDoc->SelectScreenIcon(pWorkScreen);
pWorkScreen->SelectScreenLink(pWorkLink);
pWorkLink->Detach();
pWorkLink->SetLinkDst(&point);
// If this screen selected, drag all selected items.
lButtonStatus = LBS_LINKCLICK;
}
else
{
// Clicked on the flow tree window.
// Clear all the selections and start dragging a selection window.
pDoc->ClearAllSelectedScreenIcons();
lButtonStatus = LBS_WINDOWCLICK;
selectionWindow.left = lastLeftClick.x;
selectionWindow.top = lastLeftClick.y;
selectionWindow.right = lastLeftClick.x;
selectionWindow.bottom = lastLeftClick.y;
}
// Make sure we redraw to reflect the changes.
Invalidate();
break;
case LBS_WINDOWCLICK: // Clicked on a window.
case LBS_SCREENCLICK: // Clicked on a screen.
case LBS_LINKCLICK: // Clicked on a screenlink.
// In a tracking mode. Probably do nothing.
break;
}
ChooseMouseCursor();
pDoc->SetModifiedFlag();
CView::OnLButtonDown(nFlags, point);
}
void CFlowTreeView::OnContextMenu(CWnd* pWnd, CPoint point)
{
CFEManDoc* pDoc = GetDocument();
Screen *pWorkScreen;
ScreenLink *pWorkLink;
// Save the position of this last right click.
lastRightClick = point;
// Keep this click in client coordinates?
ScreenToClient(&lastRightClick);
// Three types of context menus in this pane;
// 1: Default context menu.
// 2: Screen context menu.
// 3: Screen Link context menu.
// Load the Screen context menu.
pWorkScreen = pDoc->PointOnScreenIcon(&lastRightClick);
pWorkLink = pDoc->PointOnScreenLink(&lastRightClick);
if(pWorkScreen)
{
CMenu contextMenu, *pContextMenu;
if(!pDoc->IsSelectedScreenIcon(pWorkScreen))
{
pDoc->ClearAllSelectedScreenIcons();
}
pDoc->SelectScreenIcon(pWorkScreen);
Invalidate();
contextMenu.LoadMenu(IDR_SCREENICON);
pContextMenu = contextMenu.GetSubMenu(0);
// Disable properties if there is more than one item selected.
if(pDoc->GetNumSelectedScreenIcons() > 1)
{
pContextMenu->EnableMenuItem(ID_SI_PROPERTIES, MF_GRAYED);
pContextMenu->EnableMenuItem(ID_SI_NEW_SCREENLINK, MF_GRAYED);
}
pContextMenu->TrackPopupMenu(TPM_LEFTALIGN, point.x, point.y, GetParent());
}
// Load the Screen Link context menu.
else if(pWorkLink)
{
CMenu contextMenu, *pContextMenu;
pWorkScreen = pWorkLink->GetMyScreen();
if(!pDoc->IsSelectedScreenIcon(pWorkScreen))
{
pDoc->ClearAllSelectedScreenIcons();
}
pDoc->SelectScreenIcon(pWorkScreen);
pWorkScreen->SelectScreenLink(pWorkLink);
Invalidate();
contextMenu.LoadMenu(IDR_SCREENLINK);
pContextMenu = contextMenu.GetSubMenu(0);
// Disable properties if there is more than one item selected.
if(pDoc->GetNumSelectedScreenIcons() > 1)
{
pContextMenu->EnableMenuItem(ID_SL_PROPERTIES, MF_GRAYED);
pContextMenu->EnableMenuItem(ID_SL_DELETESCREENLINK, MF_GRAYED);
}
if(pWorkLink->IsReadOnly())
{
pContextMenu->EnableMenuItem(ID_SL_DELETESCREENLINK, MF_GRAYED);
}
pContextMenu->TrackPopupMenu(TPM_LEFTALIGN, point.x, point.y, GetParent());
}
// Load the default context menu.
else
{
CMenu contextMenu, *pContextMenu;
pDoc->ClearAllSelectedScreenIcons();
Invalidate();
contextMenu.LoadMenu(IDR_FLOWTREEDEFAULT);
pContextMenu = contextMenu.GetSubMenu(0);
pContextMenu->TrackPopupMenu(TPM_LEFTALIGN, point.x, point.y, GetParent());
}
}
