/*

    File:       FinderWindow.cp

    Contains:   Finder window simulating using the Appearance Manager.

    Version:    Mac OS X

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*/

//

//  This module demonstrates an Appearance adoption example for a Finder-like window.

//  It uses actual Appearance Manager primitives to draw some of the window elements,

//  such as the window header and placard. Normally, it would be best to use the

//  window header and placard controls, since they take care of enabling and disabling

//  themselves. This, however, is a good example of how to use lower level routines

//  and still be theme savvy.

//

//  Although this window has scroll bars, it doesn't actually scroll anything. It's

//  more an example of getting the visual appearance together.

//

#include "AppearanceSamplePrefix.h"

#if !BUILDING_FOR_CARBON_8

    #include <Carbon/Carbon.h>

#else

    #include <Carbon.h>

#endif

#include "FinderWindow.h"

#define width( r )      ( (r).right - (r).left )

#define height( r )     ( (r).bottom - (r).top )

const Rect      kBounds = { 137, 122, 283, 458 };

const UInt32    kAttributes = kWindowCloseBoxAttribute

                                | kWindowResizableAttribute

                                | kWindowCollapseBoxAttribute

                                | kWindowLiveResizeAttribute

                                | kWindowInWindowMenuAttribute;

FinderWindow::FinderWindow() :

        TWindow( kDocumentWindowClass, kAttributes, kBounds )

{               

    Rect            rect;

    CFStringRef     title;

        // Note the use of the new defProc constants here.

        // This eliminates the need to go thru the mapping

        // CDEF for scroll bars, which would normally happen

        // after calling RegisterAppearanceClient.

    fScrollBarActionUPP = ::NewControlActionUPP( ScrollBarAction );

    CalcVertScrollBarRect( rect );

    ::CreateScrollBarControl( GetWindowRef(), &rect, 0, 0, 100, 0, true, fScrollBarActionUPP, &fVertScrollBar );

    CalcHorizScrollBarRect( rect );

    ::CreateScrollBarControl( GetWindowRef(), &rect, 0, 0, 100, 0, true, fScrollBarActionUPP, &fHorizScrollBar );

    CalcPlacardRect();

    CalcHeaderRect();

    title = ::CFCopyLocalizedString( CFSTR( "Finder-like Window" ), CFSTR( "" ) );

    SetTitle( title );

    ::CFRelease( title );

    Show();

}

FinderWindow::~FinderWindow()

{

    if ( fVertScrollBar )

        DisposeControl( fVertScrollBar );

    if ( fHorizScrollBar )

        DisposeControl( fHorizScrollBar );

    if ( fScrollBarActionUPP )

        ::DisposeControlActionUPP ( fScrollBarActionUPP );

}

//------------------------------------------------------------------------------------

//  ¥ Activate

//------------------------------------------------------------------------------------

//  Activates the contents of the window.

//

void

FinderWindow::Activated()

{

    ::SetPort( GetPort() );

    ::DrawThemeWindowHeader( &fHeaderRect, kThemeStateActive );

    ::ValidWindowRect( GetWindowRef(), &fHeaderRect );

    DrawPlacard( kThemeStateActive, true );

}

//------------------------------------------------------------------------------------

//  ¥ Deactivate

//------------------------------------------------------------------------------------

//  Deactivates the contents of the window.

//

void

FinderWindow::Deactivated()

{

    ::SetPort( GetPort() );

    ::DrawThemeWindowHeader( &fHeaderRect, kThemeStateDisabled );

    ::ValidWindowRect( GetWindowRef(), &fHeaderRect );

    DrawPlacard( kThemeStateDisabled, true );

}

//------------------------------------------------------------------------------------

//  ¥ Draw

//------------------------------------------------------------------------------------

//  Draws our window. Appearance Manager calls handle multiple devices properly. We

//  need to call DeviceLoop to handle drawing our list view, though.

//

void

FinderWindow::Draw()

{

    Rect                    rect;

    ThemeDrawState          drawState;

    RgnHandle               rgn;

    DeviceLoopDrawingUPP    proc;

    drawState = IsWindowHilited( GetWindowRef() ) ?

                        (ThemeDrawState)kThemeStateActive :

                        (ThemeDrawState)kThemeStateDisabled;

    rgn = NewRgn();

    if ( rgn )

    {

        ::SetPort( GetPort() );

        ::UpdateControls( GetWindowRef(), GetPortVisibleRegion( GetPort(), rgn ) );

        ::DrawThemeWindowHeader( &fHeaderRect, drawState );

        GetContentRect( rect );

        RectRgn( rgn, &rect );

        proc = NewDeviceLoopDrawingUPP( DrawListView );

        DeviceLoop( rgn, proc, (long)this, 0 );

        DisposeDeviceLoopDrawingUPP( proc );

        DisposeRgn( rgn );

    }

    DrawPlacard( drawState, false );

}

//------------------------------------------------------------------------------------

//  ¥ DrawListView

//------------------------------------------------------------------------------------

//  Draws our list view columns, using the correct theme brushes.

//

pascal void

FinderWindow::DrawListView( SInt16 depth, SInt16 flags, GDHandle /*device*/, long userData )

{

    FinderWindow*       window = (FinderWindow*)userData;

    Rect                rect;

    ThemeDrawingState   state;

    SInt16              baseLine;

    window->GetContentRect( rect );

        // Because the brushes used by the Appearance Manager could

        // be colors or patterns, our GetColorAndPenState routine

        // always saves the current background pattern as well as the

        // fore and back colors.

    ::GetThemeDrawingState( &state );

    ::SetThemeBackground( kThemeListViewBackgroundBrush, depth, (flags & gdDevType) != 0 );

    ::EraseRect( &rect );

    rect.left += 40;

    rect.right = rect.left + 120;

    ::SetThemeBackground( kThemeListViewSortColumnBackgroundBrush, depth, (flags & gdDevType) != 0 );

    ::EraseRect( &rect );

    ::SetThemePen( kThemeListViewSeparatorBrush, depth, (flags & gdDevType) != 0 );

    window->GetContentRect( rect );

    for ( baseLine = rect.top; baseLine <= rect.bottom; baseLine += 15 )

    {

        ::MoveTo( rect.left, baseLine );

        ::LineTo( rect.right - 1, baseLine );

    }

    ::SetThemeDrawingState( state, true );

}

//------------------------------------------------------------------------------------

//  ¥ Resize

//------------------------------------------------------------------------------------

//  Resize our window to the appropriate size specified in width and height. Make sure

//  the scroll bars are repositioned properly.

//

void

FinderWindow::Resized()

{

    Rect        horizRect, vertRect;

    Rect        oldHeaderRect;

    // if the window was widened, invalidate the 

    // area of the header that was exposed, including an

    // extra 5 pixels to cover the edge of the header frame.

    oldHeaderRect = fHeaderRect;

    CalcHeaderRect();

    if ( oldHeaderRect.right < fHeaderRect.right )

    {

        oldHeaderRect.left = oldHeaderRect.right - 5;

        ::InvalWindowRect( GetWindowRef(), &oldHeaderRect );

    }

    InvalidateScrollBars();

    InvalidatePlacard();

    CalcHeaderRect();

    CalcHorizScrollBarRect( horizRect );

    CalcVertScrollBarRect( vertRect );

    CalcPlacardRect();

    ::MoveControl( fHorizScrollBar, horizRect.left, horizRect.top );

    ::MoveControl( fVertScrollBar, vertRect.left, vertRect.top );

    ::SizeControl( fHorizScrollBar, width( horizRect ), height( horizRect ) );

    ::SizeControl( fVertScrollBar, width( vertRect ), height( vertRect ) );

    InvalidateScrollBars();

    InvalidatePlacard();

    UpdateNow();

}

//------------------------------------------------------------------------------------

//  ¥ GetContentRect

//------------------------------------------------------------------------------------

//  Get our content rect, which is the area not including the scroll bars and the

//  window header. It is basically the list view area.

//

void

FinderWindow::GetContentRect( Rect& rect )

{

    ::GetPortBounds( GetPort(), &rect );

    rect.bottom -= 15;

    rect.right -= 15;

    rect.top += 39;

}

//------------------------------------------------------------------------------------

//  ¥ DrawPlacard

//------------------------------------------------------------------------------------

//  Draws our placard next to the horizontal scroll bar.

//

void

FinderWindow::DrawPlacard( ThemeDrawState state, Boolean validate )

{

    ::DrawThemePlacard( &fPlacardRect, state );

    if ( validate )

        ::ValidWindowRect( GetWindowRef(), &fPlacardRect );

}

//------------------------------------------------------------------------------------

//  ¥ InvalidateScrollBars

//------------------------------------------------------------------------------------

//  Invalidates the scroll bar areas.

//

void

FinderWindow::InvalidateScrollBars()

{

    Rect        tempRect;

    ::SetPort( GetPort() );

    ::GetControlBounds( fHorizScrollBar, &tempRect );

    ::InvalWindowRect( GetWindowRef(), &tempRect );

    ::EraseRect( &tempRect );

    ::GetControlBounds( fVertScrollBar, &tempRect );

    ::InvalWindowRect( GetWindowRef(), &tempRect );

    ::EraseRect( &tempRect );

}

//------------------------------------------------------------------------------------

//  ¥ InvalidatePlacard

//------------------------------------------------------------------------------------

//  Invalidates the placard area.

//

void

FinderWindow::InvalidatePlacard()

{

    InvalWindowRect( GetWindowRef(), &fPlacardRect );

    EraseRect( &fPlacardRect );

}

//------------------------------------------------------------------------------------

//  ¥ CalcHorizScrollBarRect

//------------------------------------------------------------------------------------

//  Calculates the position where the horizontal scroll bar should be placed.

//

void

FinderWindow::CalcHorizScrollBarRect( Rect& rect )

{

    GetPortBounds( GetPort(), &rect );

    rect.bottom++;

    rect.left = rect.left + 120;

    rect.top = rect.bottom - 16;

    rect.right -= 14;

}

//------------------------------------------------------------------------------------

//  ¥ CalcVertScrollBarRect

//------------------------------------------------------------------------------------

//  Calculates the position where the vertical scroll bar should be placed.

//

void

FinderWindow::CalcVertScrollBarRect( Rect& rect )

{

    GetPortBounds( GetPort(), &rect );

    rect.right++;

    rect.left = rect.right - 16;

    rect.bottom -= 14;

    rect.top = 38;

}

//------------------------------------------------------------------------------------

//  ¥ CalcHeaderRect

//------------------------------------------------------------------------------------

//  Calculates the position where the window header should be placed.

//

void

FinderWindow::CalcHeaderRect()

{

    GetPortBounds( GetPort(), &fHeaderRect );

    ::InsetRect( &fHeaderRect, -1, -1 );

    fHeaderRect.bottom = fHeaderRect.top + 40;

}

//------------------------------------------------------------------------------------

//  ¥ CalcPlacardRect

//------------------------------------------------------------------------------------

//  Calculates the position where the placard should be placed.

//

void

FinderWindow::CalcPlacardRect()

{

    GetPortBounds( GetPort(), &fPlacardRect );

    fPlacardRect.bottom++;

    fPlacardRect.top = fPlacardRect.bottom - 16;

    fPlacardRect.right = 121;

    fPlacardRect.left--;

}

//------------------------------------------------------------------------------------

//  ¥ ScrollBarAction

//------------------------------------------------------------------------------------

//  A simple callback to give some feedback when clicking the scroll arrows or page

//  up/down areas.

//

pascal void

FinderWindow::ScrollBarAction( ControlHandle control, SInt16 part )

{

    switch ( part )

    {

        case kControlUpButtonPart:

            if ( GetControlValue( control) > GetControlMinimum( control ) )

                SetControlValue( control, GetControlValue( control ) - 1 );

            break;

        case kControlDownButtonPart:

            if ( GetControlValue( control) < GetControlMaximum( control ) )

                SetControlValue( control, GetControlValue( control ) + 1 );

            break;

        case kControlPageUpPart:

            if ( GetControlValue( control) > GetControlMinimum( control ) )

                SetControlValue( control, GetControlValue( control ) - 10 );

            break;

        case kControlPageDownPart:

            if ( GetControlValue( control) < GetControlMaximum( control ) )

                SetControlValue( control, GetControlValue( control ) + 10 );

            break;

    }           

}