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TEveWindowManager.cxx
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TEveWindowManager.cxx
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// @(#)root/eve:$Id$
// Author: Matevz Tadel 2007
/*************************************************************************
* Copyright (C) 1995-2007, Rene Brun and Fons Rademakers. *
* All rights reserved. *
* *
* For the licensing terms see $ROOTSYS/LICENSE. *
* For the list of contributors see $ROOTSYS/README/CREDITS. *
*************************************************************************/
#include "TEveWindowManager.h"
#include "TEveWindow.h"
/** \class TEveWindowManager
\ingroup TEve
Manager for EVE windows.
Provides the concept of the current window and takes care for proper
destruction of the windows.
It is also the EVE-parent of windows that are not attached into the
hierarchy of EVE-windows.
Window-manager is created by the EVE-manager and can be retrieved via:
~~~ {.cpp}
gEve->GetWindowManager.
~~~
*/
ClassImp(TEveWindowManager);
////////////////////////////////////////////////////////////////////////////////
/// Constructor.
TEveWindowManager::TEveWindowManager(const char* n, const char* t) :
TEveElementList(n, t),
TQObject (),
fCurrentWindow (0),
fDefaultContainer (0)
{
}
////////////////////////////////////////////////////////////////////////////////
/// Destructor.
TEveWindowManager::~TEveWindowManager()
{
}
////////////////////////////////////////////////////////////////////////////////
/// Entry-point for communicating the fact that a window was acted
/// upon in such a way that it should become the current window.
/// If the passed window is already the current one, it is deselected.
///
/// For example, this is called from title-bar, when creating a new
/// window slot, etc.
///
/// If the change is accepted (the manager can refuse to make a
/// window current), the state of window is changed accordingly and
/// WindowSelected() signal is emitted.
void TEveWindowManager::SelectWindow(TEveWindow* window)
{
if (window == fCurrentWindow)
window = 0;
if (fCurrentWindow)
fCurrentWindow->SetCurrent(kFALSE);
fCurrentWindow = window;
if (fCurrentWindow)
fCurrentWindow->SetCurrent(kTRUE);
WindowSelected(fCurrentWindow);
}
////////////////////////////////////////////////////////////////////////////////
/// Called by a window before it gets deleted.
void TEveWindowManager::DeleteWindow(TEveWindow* window)
{
if (window == fCurrentWindow)
{
fCurrentWindow = 0;
WindowSelected(fCurrentWindow);
}
WindowDeleted(window);
}
////////////////////////////////////////////////////////////////////////////////
/// Emit the "WindowDocked(TEveWindow*)" signal.
void TEveWindowManager::WindowDocked(TEveWindow* window)
{
Emit("WindowDocked(TEveWindow*)", (Longptr_t)window);
}
////////////////////////////////////////////////////////////////////////////////
/// Emit the "WindowUndocked(TEveWindow*)" signal.
void TEveWindowManager::WindowUndocked(TEveWindow* window)
{
Emit("WindowUndocked(TEveWindow*)", (Longptr_t)window);
}
////////////////////////////////////////////////////////////////////////////////
/// Emit the "WindowSelected(TEveWindow*)" signal.
void TEveWindowManager::WindowSelected(TEveWindow* window)
{
Emit("WindowSelected(TEveWindow*)", (Longptr_t)window);
}
////////////////////////////////////////////////////////////////////////////////
/// Emit the "WindowDeleted(TEveWindow*)" signal.
void TEveWindowManager::WindowDeleted(TEveWindow* window)
{
Emit("WindowDeleted(TEveWindow*)", (Longptr_t)window);
}
////////////////////////////////////////////////////////////////////////////////
/// Return current window dynamic-casted to TEveWindowSlot.
TEveWindowSlot* TEveWindowManager::GetCurrentWindowAsSlot() const
{
return dynamic_cast<TEveWindowSlot*>(fCurrentWindow);
}
void TEveWindowManager::SetDefaultContainer(TEveWindow* w)
{
// Set default container window.
// It has to be able to create new slots.
// When main-frames are closed they will place the windows here.
static const TEveException kEH("TEveWindowManager::SetDefaultContainer ");
if ( ! w->CanMakeNewSlots())
throw kEH + "Given window can not make new slots.";
fDefaultContainer = w;
}
////////////////////////////////////////////////////////////////////////////////
/// Destroy window's children and then the window itself.
/// Protected method used during shutdown.
void TEveWindowManager::DestroyWindowRecursively(TEveWindow* window)
{
while (window->HasChildren())
{
TEveWindow* w = dynamic_cast<TEveWindow*>(window->FirstChild());
if (w)
DestroyWindowRecursively(w);
else
window->RemoveElement(window->FirstChild());
}
window->DestroyWindowAndSlot();
}
////////////////////////////////////////////////////////////////////////////////
/// Wait for all windows to shut-down.
void TEveWindowManager::DestroyWindows()
{
while (HasChildren())
{
TEveWindow* w = dynamic_cast<TEveWindow*>(FirstChild());
if (w)
DestroyWindowRecursively(w);
else
RemoveElement(FirstChild());
}
}
////////////////////////////////////////////////////////////////////////////////
/// Hide all eve decorations (title-bar and mini-bar) on all frames.
void TEveWindowManager::HideAllEveDecorations()
{
TEveCompositeFrame *ecf = 0;
TIter wins(TEveCompositeFrame::fgFrameList);
while ((ecf = (TEveCompositeFrame*) wins()))
{
ecf->HideAllDecorations();
ecf->Layout();
}
}
////////////////////////////////////////////////////////////////////////////////
/// Show eve decorations (title-bar or mini-bar) as specified for
/// the contained window on all frames.
void TEveWindowManager::ShowNormalEveDecorations()
{
TEveCompositeFrame *ecf = 0;
TIter wins(TEveCompositeFrame::fgFrameList);
while ((ecf = (TEveCompositeFrame*) wins()))
{
ecf->ShowNormalDecorations();
ecf->Layout();
}
}
////////////////////////////////////////////////////////////////////////////////
/// Set show title-bar state on all frames.
/// This does not modify the per-window settings - call
/// ShowNormalEveDecorations() to restore them.
void TEveWindowManager::SetShowTitleBars(Bool_t state)
{
TEveCompositeFrame *ecf = 0;
TIter wins(TEveCompositeFrame::fgFrameList);
while ((ecf = (TEveCompositeFrame*) wins()))
{
ecf->SetShowTitleBar(state);
ecf->Layout();
}
}