infobar.cpp

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// $Id: infobar.cpp 1282 2006-06-09 09:46:49Z alex $
/* @@tag:xara-cn@@ DO NOT MODIFY THIS LINE
================================XARAHEADERSTART===========================
 
               Xara LX, a vector drawing and manipulation program.
                    Copyright (C) 1993-2006 Xara Group Ltd.
       Copyright on certain contributions may be held in joint with their
              respective authors. See AUTHORS file for details.

LICENSE TO USE AND MODIFY SOFTWARE
----------------------------------

This file is part of Xara LX.

Xara LX is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License version 2 as published
by the Free Software Foundation.

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-----------------

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License described above, Xara Group Ltd grants to you certain additional
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The additional rights are to use, modify, and distribute the software
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----------------

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      Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK.
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=================================XARAHEADEREND============================
 */

// The code to position and display the infobar.


#include "camtypes.h"
#include "mainfrm.h"
//#include "tim.h"
//#include "errors.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "ensure.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "app.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "document.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "barsdlgs.h" 
#include "bubbleid.h"

#include <afxpriv.h>

#include "infobar.h"

DECLARE_SOURCE("$Revision: 1282 $");

CC_IMPLEMENT_DYNCREATE(InfoBarOp, DialogOp)

const CDlgMode InfoBarOp::Mode = MODELESS; // Mode of the dialog

BOOL InfoBarOp::Visible = TRUE;

UINT32 InfoBarOp::IDD = _R(IDD_INFOBAR);

InfoBarOp::InfoBarOp(CDlgResID SubDialogID) :
    DialogOp(InfoBarOp::IDD, InfoBarOp::Mode, SubDialogID)
{

    // Not dragging the info bar intially
    DraggingBar = FALSE;
}


MsgResult InfoBarOp::Message( Msg* Message)
{
/*
    if (Document::GetCurrent() == NULL)
        // No document - can't do anything
        return;

    // Process static Infobar control messages 
    if ((Gadget == _R(IDC_INVOKE_LYR_DLG)) && (DlgMsg == DIM_LFT_BN_CLICKED))
    {
        // Obtain a pointer to the op descriptor for the Layer dialog operation 
        OpDescriptor* OpDesc = OpDescriptor::FindOpDescriptor(CC_RUNTIME_CLASS(LayerDlg)); 
        // Invoke the operation. 
        OpDesc->Invoke();         
    }   

    // Process active layer selection
    if ((Gadget == _R(IDC_LAYER_COMBO)) && (DlgMsg == DIM_SELECTION_CHANGED))
    {
        // Obtain the index of the selected item
        WORD Index;  
        GetValueIndex(_R(IDC_LAYER_COMBO), &Index); 
        ChangeActiveLayer(Index); 
    }

    if (Gadget >= _R(ID_FIRST_TOOL_CTRL))
    {
        // Gadgets with IDs of 1000 or greater belong to the tool, not the Info bar, so
        // pass the message on to the tool.
        Tool *pTool = Tool::GetCurrent();
        ENSURE(pTool != NULL, "InfoBarOp::HandleMessage - no Tool is selected!");
        if (pTool != NULL)
            pTool->HandleInfoBarMessage(DlgMsg, Gadget);
    }
    else
    {
        #if 0
        // Handle the dragging of the info bar
        switch (DlgMsg)
        {
            case DIM_RGT_BN_DOWN:
            case DIM_LFT_BN_DOWN:
                GetCursorPos(&DragPos);
                SetCapture(WindowID);
                DraggingBar = TRUE;
                break;

            case DIM_MOUSE_DRAG:
                if (!DraggingBar)
                {
                    GetCursorPos(&DragPos);
                    SetCapture(WindowID);
                    DraggingBar = TRUE;
                    return;
                }

                POINT CurrPoint;
                GetCursorPos(&CurrPoint);
                ScrollWindow(WindowID, CurrPoint.x - DragPos.x, 0, NULL, NULL);
                DragPos = CurrPoint;
                break;

            case DIM_RGT_BN_UP:
            case DIM_LFT_BN_UP:
                ReleaseCapture();
                DraggingBar = FALSE;
                break;
        }
        #endif
    }
*/
    return OK; 
}

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

OpState InfoBarOp::GetState(String_256*, OpDescriptor*)
{
    OpState OpSt;
    return(OpSt);
}

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

BOOL InfoBarOp::Init()
{
    // Create the OpDescriptor for this operation class.
    if (!(RegisterOpDescriptor(
                               0,
                               _R(IDT_VIEWINFOBAR),
                               CC_RUNTIME_CLASS(InfoBarOp),
                               OPTOKEN_INFOBAR,
                               InfoBarOp::GetState,
                               0,   /* help ID */
                               _R(IDBBL_INFOBAROP),
                               0    /* bitmap ID */)))
    {
        return FALSE; 
    }
    // Declare info bar preference.
    return Camelot.DeclareSection("Windows", 5) &&
           Camelot.DeclarePref("Windows", "InfoBarIsVisible", &Visible);
}

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

BOOL InfoBarOp::Create()
{
    return DialogOp::Create();
}

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

void InfoBarOp::Do(OpDescriptor*)
{
    // Just to make sure info bar is not opened until it is positioned correctly (by
    // InfoBarOp::OnSizeParent()).
    Close();
}

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

>   void InfoBarOp::OnSizeParent(WPARAM, LPARAM lParam)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    9/11/93
    Inputs:     WPARAM - ignored.
                lParam - the special MFC structure that is sent when a parent tells its
                child windows to resize themselves.
    Outputs:    lParam - the structure is updated to reflect how much client area was
                taken by the Info Bar.
    Purpose:    Resize the info bar when the parent window moves/resizes, or when one of
                the children becomes visible/invisible.

                The WM_SIZEPARENT message is sent, which is a special AFX message (from the
                WM_USER address space I think).  The child windows then adjust the structure
                passed to them to steal part of the workspace for themselves, and whatever is
                left over is used for the client area.

                This is all undocumented and was deduced by looking at the MFC files
                WINCORE.CPP, WINFRM.CPP, BARCORE.CPP, and BARDLG.CPP.

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

void InfoBarOp::OnSizeParent(WPARAM, LPARAM lParam)
{
    AFX_SIZEPARENTPARAMS FAR* lpLayout = (AFX_SIZEPARENTPARAMS FAR*)lParam;

    if (Visible)
    {
        // Make the window zero size to avoid redraws
        //MoveWindow(WindowID, 0, 0, 0, 0, FALSE);

        // Info Bar is visible - reposition it wrt parent window.
        CRect rect;
        rect.CopyRect(&lpLayout->rect);

        CSize sizeAvail = rect.Size();  // maximum size available
        CSize size;     // maximum requested size
        size.cx = min(32767, sizeAvail.cx);
        size.cy = min(28, sizeAvail.cy);


        // top align (stretch width)
        size.cx = sizeAvail.cx;
        lpLayout->rect.top += size.cy;

        rect.right = rect.left + size.cx;
        rect.bottom = rect.top + size.cy;

        #if _MFC_VER < 0x300
        _AfxRepositionWindow(lpLayout, WindowID, &rect);

        // If the window hasn't actually been opened yet, then open it.
        // This deferral is necessary otherwise the window is opened before being
        // correctly positioned, and a portion of the document view is invalidated
        // and redrawn, which we definitely don't want.
        #if 1
        if (!IsWindowVisible(WindowID))
        {
            lpLayout->hDWP =
                ::DeferWindowPos(lpLayout->hDWP, WindowID, NULL, 0, 0, 0, 0,
                                 SWP_NOACTIVATE|SWP_NOZORDER|SWP_NOMOVE|SWP_NOSIZE|
                                 SWP_SHOWWINDOW);
        }
        #endif
        #else
        lpLayout->hDWP = ::DeferWindowPos(lpLayout->hDWP, WindowID, NULL,
                                          rect.left, rect.top,
                                          rect.right - rect.left, rect.bottom - rect.top,
                                          SWP_NOACTIVATE|SWP_NOZORDER|SWP_SHOWWINDOW);
        #endif
    }
}


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

>   void InfoBarOp::Toggle()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    9/11/93
    Purpose:    Toggle the Info Bar on or off (i.e. make it invisible or visible).

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

void InfoBarOp::Toggle()
{
    // Work out whether to open or close the info bar, and do so.
    // (Also update preference variable)
    if (IsOpen())
    {
        Close();
        Visible = FALSE;
    }
    else
    {
        Open();
        Visible = TRUE;
    }

    // Find the main frame, and force the child windows to be repositioned/redrawn.
    CMainFrame *pFrame = (CMainFrame *) AfxGetApp()->m_pMainWnd;
    pFrame->RecalcLayout();
}

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

>   void InfoBarOp::NewCurrentSpread()

    Author:     Simon_Maneggio (Xara Group Ltd) <camelotdev@xara.com>
    Created:    10/1/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    This function gets called by the LayerManager when the Current Spread is 
                changing. 
    Errors:     -
    SeeAlso:    -

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

void InfoBarOp::NewCurrentSpread()
{
    ENSURE(FALSE,"This function should not be called");
/*
    GadgetRedraw(_R(IDC_LAYER_COMBO),FALSE);    // Turn off drawing until we have finished making changes 
                                            // to the gadget. 
    // Delete any existing list items 
    INT32 Count; 
    GetValueCount(_R(IDC_LAYER_COMBO),&Count); 
    while (Count != 0)
    {
        DeleteValue(_R(IDC_LAYER_COMBO), FALSE, Count-1); 
        Count--; 
    }

    WORD SelItemIndex = 0; // The list index of the selected item (i.e. the active layer)
    WORD i = 0; 

    BOOL FoundActiveLayer = FALSE; 

    // Traverse the Layer Manager's LyrDetList and add all layer identifiers to the list gadget
    List* LyrList = &((Document::GetCurrent()->GetLayerMgr()).LyrDetList); 
    ListItem* CurLayerDet = LyrList->GetHead();  
    ENSURE(CurLayerDet != NULL, "The LyrDetList is empty"); 
    while (CurLayerDet != NULL)
    {
        // Is the current layer the active layer ? 
        if ( ((LyrDetails*)CurLayerDet)->Status.Flags.Active ) 
        {
            // Ensure that there is only one active layer 
            ENSURE (!FoundActiveLayer, "More than one active layer found"); 
            FoundActiveLayer = TRUE; 
            SelItemIndex = i; 
        }
        // Add string to end of list box 
        SetStringGadgetValue(_R(IDC_LAYER_COMBO),&(((LyrDetails*)CurLayerDet)->Status.StringLayerID)); 

        CurLayerDet = LyrList->GetNext(CurLayerDet);    
        i++; 
    }

    ENSURE(FoundActiveLayer,"No active layer was found"); 

    GadgetRedraw(_R(IDC_LAYER_COMBO),TRUE); // Turn drawing back on 

    SetSelectedValueIndex(_R(IDC_LAYER_COMBO), SelItemIndex); // Select the active layer 
*/
} 

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

>   void InfoBarOp::DisableLayerList()

    Author:     Simon_Maneggio (Xara Group Ltd) <camelotdev@xara.com>
    Created:    17/1/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Disables the layer control
    Errors:     -
    SeeAlso:    -

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

void InfoBarOp::DisableLayerControl()
{
     EnableGadget(_R(IDC_LAYER_COMBO), FALSE ); 
     EnableGadget(_R(IDC_INVOKE_LYR_DLG), FALSE); 
} 

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

>   void InfoBarOp::EnableLayerControl()

    Author:     Simon_Maneggio (Xara Group Ltd) <camelotdev@xara.com>
    Created:    17/1/94
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    Enables the layer control
    Errors:     -
    SeeAlso:    -

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

void InfoBarOp::EnableLayerControl()
{
     EnableGadget(_R(IDC_LAYER_COMBO), TRUE ); 
     EnableGadget(_R(IDC_INVOKE_LYR_DLG), TRUE ); 
} 

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

>   void InfoBarOp::ChangeActiveLayer(WORD NewLayerIndex)

    Author:     Simon_Maneggio (Xara Group Ltd) <camelotdev@xara.com>
    Created:    11/1/94
    Inputs:     NewLayerIndex: z-order Index of the new active layer. 
    Outputs:    -
    Returns:    -
    Purpose:    Changes the active layer 
    Errors:     -
    SeeAlso:    -

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

void InfoBarOp::ChangeActiveLayer(WORD NewLayerIndex)
{
    ENSURE(FALSE,"This function should not be called");
/*
    INT32 CurrentIndex = 0; 
    // Traverse the Layer Manager's LyrDetList 
    List* LyrList = &((Document::GetCurrent()->GetLayerMgr()).LyrDetList); 
    ListItem* CurLayerDet = LyrList->GetHead();  
    ENSURE(CurLayerDet != NULL, "The LyrDetList is empty"); 
    while (CurLayerDet != NULL)
    {
        if (CurrentIndex == NewLayerIndex)
        {
            // We have found the layer to make active 
            ((LyrDetails*)CurLayerDet)->Status.Flags.Active = TRUE; 
        }
        else if ( ((LyrDetails*)CurLayerDet)->Status.Flags.Active )
        {
            // We have found the old active layer 
            ((LyrDetails*)CurLayerDet)->Status.Flags.Active = FALSE; 
        }
        CurLayerDet = LyrList->GetNext(CurLayerDet); // Get next layer detail record 
        CurrentIndex ++;    
    }
    
    // Commit the changes 
    (Document::GetCurrent()->GetLayerMgr()).CommitLayerChanges(); 
*/
}


CC_IMPLEMENT_DYNCREATE(InfoBarViewOp, Operation)

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

>   BOOL InfoBarViewOp::Init()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/10/93
    Returns:    TRUE if worked, FALSE if failed (out of memory)
    Purpose:    Declares op descriptor for toggling info bar..
    Errors:     Returns FALSE on failure.
    Scope:      Static

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

BOOL InfoBarViewOp::Init()
{
    return (RegisterOpDescriptor(
                                 0,
                                 _R(IDT_VIEWINFOBAR),
                                 CC_RUNTIME_CLASS(InfoBarViewOp),
                                 OPTOKEN_VIEWINFOBAR,
                                 GetState,
                                 0,     /* help ID */
                                 _R(IDBBL_VIEWINFOBAROP),
                                 0      /* bitmap ID */));
}

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

>   void InfoBarViewOp::Do(OpDescriptor*)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/10/93
    Purpose:    Toggles the info bar.

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

void InfoBarViewOp::Do(OpDescriptor*)
{
    // Tell the main window to toggle the info bar.
    CMainFrame::pInfoBar->Toggle();

    // This operation is now finished
    End();
}

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

>   InfoBarViewOp::InfoBarViewOp()

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/10/93
    Purpose:    Constructor for InfoBarViewOp operation. It is not undoable.

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

InfoBarViewOp::InfoBarViewOp()
{
}



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

>   OpState InfoBarViewOp::GetState(String_256*, OpDescriptor*)

    Author:     Tim_Browse (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/10/93
    Purpose:    This item is always available, so long as a document is visible.
                It is ticked if the info bar is visible.

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

OpState InfoBarViewOp::GetState(String_256*, OpDescriptor*)
{
    // Tick the item if the info bar is visible
    OpState OpSt(CMainFrame::pInfoBar->IsOpen());

    return OpSt;
}

---