dlgview.cpp

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// $Id: dlgview.cpp 1282 2006-06-09 09:46:49Z alex $
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               Xara LX, a vector drawing and manipulation program.
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----------------------------------

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 */

// Simple view class for dialogs to use when rendering using RenderRegions.

/*
*/

#include "camtypes.h"
#include "dlgview.h"
#include "vstate.h"
//#include "errors.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "osrndrgn.h"

DECLARE_SOURCE("$Revision: 1282 $");

CC_IMPLEMENT_DYNAMIC(DialogView, View)

// Declare smart memory handling in Debug builds
#define new CAM_DEBUG_NEW


/********************************************************************************************

>   BOOL DialogView::Init()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Returns:    TRUE if initialised ok;
                FALSE if not
    Purpose:    Initialise the DialogView for rendering.
    SeeAlso:    DialogView

********************************************************************************************/

BOOL DialogView::Init()
{
    // Get pixel size from screen DC.
    INT32                   pixwidth, pixheight;
    wxScreenDC dc;
    wxSize ppi = OSRenderRegion::GetFixedDCPPI(dc);
    pixwidth=ppi.GetWidth();
    pixheight=ppi.GetHeight();
    
    // Set up our pixel size
    PixelWidth = FIXED16(72000.0 / pixwidth);
    PixelHeight = FIXED16(72000.0 / pixheight);
    ScaledPixelWidth = PixelWidth;
    ScaledPixelHeight = PixelHeight;

    // Get ourselves a ViewState object
    pVState = new ViewState;
    if (pVState == NULL) 
        return FALSE;

    // Connect this view state to this view
    pVState->pView = this;

    // No document for dialogs
    pDoc = NULL;

    // All ok
    return TRUE;
}

/********************************************************************************************

>   DialogView::~DialogView()

    Author:     Jim_Lynn (Xara Group Ltd) <camelotdev@xara.com>
    Created:    2/11/95
    Purpose:    Destructor - the class leaks viewstates like a privatised water company - the
                destructor has to delete them.

********************************************************************************************/

DialogView::~DialogView()
{
    if (pVState != NULL)
    {
        delete pVState;
        pVState = NULL;
    }
}

/********************************************************************************************

>   BOOL DialogView::ViewStateChanged()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Returns:    TRUE (always).
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    SeeAlso:    DialogView

********************************************************************************************/

BOOL DialogView::ViewStateChanged()
{
    return TRUE;
}

/********************************************************************************************

>   void DialogView::SetViewPixelSize()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Purpose:    Sets up the pixel size for this view object.
    SeeAlso:    DialogView

********************************************************************************************/

void DialogView::SetViewPixelSize()
{
    // Set the scaled pixel size
    ScaledPixelWidth = PixelWidth / Scale;
    ScaledPixelHeight = PixelHeight / Scale;
}

/********************************************************************************************

>   void DialogView::ContinueRenderView(RenderRegion*, Spread*, BOOL = TRUE, BOOL = TRUE,
                                     BOOL bForceImmediate = FALSE)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Inputs:     N/A
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    Errors:     Always => ERROR3
    SeeAlso:    DialogView

********************************************************************************************/

void DialogView::ContinueRenderView(RenderRegion*, Spread*, BOOL, BOOL,
                                     BOOL bForceImmediate)
{
    ERROR3("DialogView::ContinueRenderView() should not be called!");
}

/********************************************************************************************

>   CDC *DialogView::GetRenderDC()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Returns:    NULL (always)
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    SeeAlso:    DialogView

********************************************************************************************/

wxDC *DialogView::GetRenderDC()
{
    return NULL;
}

/********************************************************************************************

>   BOOL DialogView::GetForeBackMode()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Returns:    FALSE - dialogs don't do background rendering.
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    SeeAlso:    DialogView

********************************************************************************************/

BOOL DialogView::GetForeBackMode()
{
    // DialogViews don't background render.
    return FALSE;
}

/********************************************************************************************

>   void DialogView::SetForeBackMode(BOOL)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Inputs:     N/A
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    Errors:     ERROR3 always - dialogs cannot background render!
    SeeAlso:    DialogView

********************************************************************************************/

void DialogView::SetForeBackMode(BOOL)
{
    ERROR3("DialogView::SetForeBackMode() should not be called!");
}

/********************************************************************************************

>   DocRect DialogView::GetDocViewRect(Spread*)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Inputs:     N/A
    Returns:    An empty rectangle (always).
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    SeeAlso:    DialogView

********************************************************************************************/

DocRect DialogView::GetDocViewRect(Spread*)
{
    DocRect Empty;
    return Empty;
}

/********************************************************************************************

>   void DialogView::SetExtent(DocCoord, DocCoord)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Inputs:     N/A
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    SeeAlso:    DialogView

********************************************************************************************/

void DialogView::SetExtent(DocCoord, DocCoord)
{
}

/********************************************************************************************

>   WorkRect DialogView::GetViewRect()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    02/20/95
    Returns:    An empty rectangle (always).
    Purpose:    None - DialogView is a skeleton class that is only used to access screen
                characteristics.
    SeeAlso:    DialogView

********************************************************************************************/

WorkRect DialogView::GetViewRect()
{
    WorkRect Empty;
    return Empty;
}

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