// $Revision: 1.4 $
// Copyright (c) 1994-1995 Taligent, Inc.  All rights reserved.

#ifndef TaligentSamples_MOUSEINPUTVIEW
#include "MouseInputView.h"
#endif

#ifndef Taligent_GRAFPORT
#include <Taligent/GrafPort.h>
#endif

#ifndef Taligent_NUMBERFORMAT
#include <Taligent/NumberFormat.h>
#endif

#ifndef Taligent_RGBCOLOR
#include <Taligent/RGBColor.h>
#endif

#ifndef Taligent_TEXTDISPLAY
#include <Taligent/TextDisplay.h>
#endif

#ifndef Taligent_KEYBOARDINPUT
#include <Taligent/KeyboardInput.h>
#endif

MCollectibleDefinitionsMacro(TMouseInputView, kOriginalVersion);

TPseudoTimeStamp gTimeStamp;

TMouseInputView::TMouseInputView()
    : TContentView(TGPoint(300, 50)), 
    MMouseEventHandler(), 
    fTrackedMouse(NIL),
    fLastLocation(TGPoint::kOrigin)
{
}

TMouseInputView::TMouseInputView(const TGPoint& size, const TGPoint& location)
    : TContentView(size, location), 
    MMouseEventHandler(), 
    fTrackedMouse(NIL),
    fLastLocation(TGPoint::kOrigin)
{
}

TMouseInputView::~TMouseInputView()
{
}

// You must set the coordinate view in order to receive entry and exit events for
// that view.  If you don't, you will never receive these events (and may in the
// future cause an exception when you call StartMouseEntryEvents).

void 
TMouseInputView::HandleAfterConnectionToViewRoot()
{
    RegisterSimpleTarget(*InternalGetEventReceiver());
    SetCoordinateView(TViewHandle(*this));
    StartMouseEntryEvents();
}

void 
TMouseInputView::HandleBeforeDisconnectionFromViewRoot()
{
    DeregisterSimpleTarget(*InternalGetEventReceiver());
}

// Draw the information about the last mouse event that we received.

void
TMouseInputView::DrawContents(TGrafPort& port) const
{
    static const TFillAndFrameBundle bundle(TRGBColor(1,1,1), TRGBColor(0,0,0), 2.0, TPen::kInsetFrame);

    TGArea area;
    GetBounds(area);
    port.Draw(area, bundle);
    
    TStandardText text;
    if (fTrackedMouse) {
        static const TUniversalNumberFormatter formatter;
        
        TStandardText xLoc;
        formatter.Format(TFormattableNumber(fLastLocation.fX), xLoc);
        
        TStandardText yLoc;
        formatter.Format(TFormattableNumber(fLastLocation.fY), yLoc);
        
        text = xLoc + TStandardText("@") + yLoc;
    } else {
        text = "No mouse in view.";
    }
            
    TTextDisplay display(text);
    TGRect textBounds = area.GetBounds();
    textBounds.Inset(TGPoint(5, 5));
    display.SetBoundaryRectangle(textBounds);
    display.SetPointSize(TFontPointSizeStyle(18));
    display.Draw(port);
}

// !!! Despite appearances to the contrary, the input system does not really 
// support mustiple mice as of D36.6.

// The input system can only track one mouse at a time.  StartMouseMovedEvents
// will forget about any previous mouse, and only report mouse moved events for
// the new mouse.

bool 
TMouseInputView::MouseEntered(TMouseMovedEvent& mouseEntry)
{
    fTrackedMouse = mouseEntry.GetMouseInputDevice();
    StartMouseMovedEvents(*fTrackedMouse);
    
    Invalidate();
    
    return true;
}

// StopMouseMoved events stops movement reporting for any mouse.

bool 
TMouseInputView::MouseExited(TMouseMovedEvent& mouseExit)
{
    if (mouseExit.GetMouseInputDevice() == fTrackedMouse) {
        StopMouseMovedEvents();
        Invalidate();
    }
    
    return true;
}

bool
TMouseInputView::MouseMoved(TMouseMovedEvent& mouseMoved)
{
    fLastLocation = mouseMoved.GetEventPosition();
    Invalidate();
    
    return true;
}

void
TMouseInputView::HandleAllocatedAreaChanged(const TGArea&)
{
    InvalidateAll();
}