liveeffectsinfo.cpp

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// $Id: liveeffectsinfo.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.

Xara LX and its component source files are distributed in the hope
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
See the GNU General Public License for more details.

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distribution); if not, write to the Free Software Foundation, Inc., 51
Franklin St, Fifth Floor, Boston, MA  02110-1301 USA


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

Conditional upon your continuing compliance with the GNU General Public
License described above, Xara Group Ltd grants to you certain additional
rights. 

The additional rights are to use, modify, and distribute the software
together with the wxWidgets library, the wxXtra library, and the "CDraw"
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----------------

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      Xara Group Ltd, Gaddesden Place, Hemel Hempstead, HP2 6EX, UK.
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=================================XARAHEADEREND============================
 */
// FreeHand Tool Info bar operations

#include "camtypes.h"
#include "camelot.h"
#include "liveeffectstool.h"
#include "liveeffectsinfo.h"
//#include "range.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "resource.h"
//#include "barsdlgs.h"
//#include "justin2.h"
//#include "will.h" // for the 'many' string
//#include "attrmgr.h" - in camtypes.h [AUTOMATICALLY REMOVED]
//#include "docvmsg.h" - in camtypes.h [AUTOMATICALLY REMOVED]
#include "colmsg.h"
#include "brushmsg.h"
//#include "liveeffectres.h"
#include "xpehost.h"
#include "opliveeffects.h"
#include "nodeliveeffect.h"
#include "liveeffectsmenu.h"
#include "shadtool.h"
#include "opfeathr.h"
#include "appprefs.h"

DECLARE_SOURCE( "$Revision: 1282 $" );

// Declare stuff for the memory tracking
CC_IMPLEMENT_DYNCREATE( LiveEffectsInfoBarOp, InformationBarOp )
#define new CAM_DEBUG_NEW




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

>   LiveEffectsInfoBarOp::LiveEffectsInfoBarOp()

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    30/8/94
    Purpose:    Sets the info bars vars to NULL defaults

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

LiveEffectsInfoBarOp::LiveEffectsInfoBarOp()
{
    // Don't know about the tool and can not retro fit to start with
    m_pTool = NULL;

    // The Controls hasve not been created yet
    m_bControlsExist = FALSE;
    m_bLockSwitchState = FALSE;
    m_bLockAllSwitchState = FALSE;
}




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

>   LiveEffectsInfoBarOp::~LiveEffectsInfoBarOp()

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    18/5/2000
    Purpose:    destructor

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

LiveEffectsInfoBarOp::~LiveEffectsInfoBarOp()
{
}


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

>   MsgResult LiveEffectsInfoBarOp::Message(Msg* Message) 

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    12/5/94
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

MsgResult LiveEffectsInfoBarOp::Message(Msg* Message) 
{
    if (IS_OUR_DIALOG_MSG(Message))
    {
        DialogMsg* DMsg = (DialogMsg*)Message;

        // Check if the message is a CANCEL
        if (DMsg->DlgMsg == DIM_CANCEL)
        {
            // Mark the controls as no longer existing
            m_bControlsExist = FALSE;
            
            // Close the dialog 
            Close();
        }

        else if (DMsg->DlgMsg == DIM_CREATE)
        {
            HandleCreate();
        }

        else
        {
            // Messages to all the controls, handled indivdually
            switch (DMsg->GadgetID)
            {
                case _R(IDC_LE_LABEL):
                {
                    GadgetMessage_Label(DMsg);
                    break;
                }
                case _R(IDC_COMBOBOX_LE_ORDER):
                {
                    GadgetMessage_Order(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_EDIT):
                case _R(IDC_BUTTON_LE_EDIT):
                {
                    GadgetMessage_Edit(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_ADD):
                case _R(IDC_BUTTON_LE_ADD):
                {
                    GadgetMessage_Add(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_INSERT):
                {
                    GadgetMessage_Insert(DMsg);
                    break;
                }
                case _R(IDC_COMBOBOX_LE_RES):
                {
                    GadgetMessage_Resolution(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_TOGGLELOCK):
                {
                    GadgetMessage_ToggleLock(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_REMOVE):
                {
                    GadgetMessage_Remove(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_REMOVEALL):
                {
                    GadgetMessage_RemoveAll(DMsg);
                    break;
                }
                case _R(IDC_CCBUTTON_LE_TOGGLELOCKALL):
                {
                    GadgetMessage_ToggleLockAll(DMsg);
                    break;
                }
                case _R(IDC_BUTTON_LE_SETUP):
                {
                    GadgetMessage_Setup(DMsg);
                    break;
                }
            }
        }
    }
    else
    {
        // Handle non dialog messages in here

        // likewise if it is a screen change message
// Commented out, Phil, 25/10/2004
// This upsets OpLiveEffect::UpdateCurrentEditor because it causes one of these messages to be sent while it's working
// and so the current PPStack that it's working on is deleted from under it by ScreenChanged
//      if (Message->IsKindOf(CC_RUNTIME_CLASS(ScreenChangeMsg)) || Message->IsKindOf(CC_RUNTIME_CLASS(CurrentAttrChangedMsg)))
//      {
//          if (m_pTool != NULL && HasWindow() 
//              && (Document::GetCurrent() != NULL))
//          {
//              m_pTool->ScreenChanged(TRUE); //((ScreenChangeMsg*)Message)->m_bClear);
//              UpdateState();
//          }
//      }


        if (Message->IsKindOf(CC_RUNTIME_CLASS(DocViewMsg)))
        {
            DocViewMsg* pDVM = (DocViewMsg*)Message;
            if (pDVM->State == pDVM->DocViewState::SELCHANGED)
                m_pTool->ScreenChanged(TRUE);
        }
    }

    // do we have a selection change message? 
    if (MESSAGE_IS_A(Message, SelChangingMsg))
    {
        Document* pDoc  = Document::GetCurrent();
        if (pDoc != NULL)
        {
            if (m_bControlsExist && IsVisible())
            {
            }
        }
        // ask the tool to refresh its cache, as blobs will have changed
        // TODO: Could test for and exclude COLOURATTCHANGED and NONCOLOURATTCHANGED here?
        if (m_pTool != NULL && HasWindow()) 
            m_pTool->ScreenChanged(TRUE); 
    }

    if (MESSAGE_IS_A(Message, ColourChangingMsg))
    {
        ColourChangingMsg *TheMsg = (ColourChangingMsg *) Message;

        // handle the selected View's Colour Context is changing
        // e.g. if the show printer colours (plate) has changed
        if(TheMsg->State == ColourChangingMsg::ColourState::SELVIEWCONTEXTCHANGE)
        {
            // ask the tool to refresh its cache
            // (so that the cache does not have the old colour in it
            //  and the drawing will be agains the correct (current)
            //  background!)
            if (m_pTool != NULL && HasWindow()) 
                m_pTool->ScreenChanged(TRUE);
        }
    }

    if (MESSAGE_IS_A(Message, DocChangingMsg))
    {
        DocChangingMsg* pMsg = (DocChangingMsg*) Message;
        if (pMsg->State == DocChangingMsg::DocState::ABOUTTODIE && XPEHost::GetEditSessionDocument()==pMsg->pChangingDoc)
        {
            XPEHost::EndEditLiveEffect();
        }
    }

    else if (MESSAGE_IS_A(Message,OpMsg))   // Check for undo/redo
    {
        // update the gadgets
//      UpdateState();
        BlobManager* BlobMgr = GetApplication()->GetBlobManager();
        ENSURE(BlobMgr, "Can't get BlobManager");
        
        if ( (((OpMsg*)Message)->MsgType == OpMsg::BEFORE_UNDO) ||
                                        (((OpMsg*)Message)->MsgType == OpMsg::BEFORE_REDO))
        {
            OpLiveEffect* pCurrentOp = XPEHost::GetCurrentLEOp();

            // If we haven't got a list of editors yet then get one
            if (pCurrentOp!=NULL)
            {
/*              // Attempt to suspend the modeless XPE edit while we undo
                m_strUndoEffectID = pCurrentOp->GetEffectID();
                m_iUndoStackPos = pCurrentOp->GetStackPos();
                // Stop the current Op and commit all of its changes
                // Disconnect it from the XPE system so that, just for the moment at least, other routines
                // think that there's no running edit session
                pCurrentOp->DoEndEdit(TRUE, TRUE);              // Sends ScreenChangeMsg - and thus releases pPPStack
                XPEHost::SetCurrentLEOp(NULL);                  // Tells UpdateCurrentEditor not to try to update dying editor
*/
                // This is the only safe thing to do at the moment...
//              XPEHost::EndEditLiveEffect();
                pCurrentOp->DoEndEdit(TRUE, TRUE, TRUE, TRUE);
                XPEHost::SetCurrentLEOp(NULL);
                XPEHost::EndEditLiveEffect();
            }
        }
        else if ( (((OpMsg*)Message)->MsgType == OpMsg::AFTER_UNDO) ||
                                        (((OpMsg*)Message)->MsgType == OpMsg::AFTER_REDO))
        {
/*          // Attempt tp restore the modeless XPE edit after undo
            // Reset pPPStack in LiveEffectTool to reset the Tool after the ScreenChangeMsg sent above
            // (prevent idle handler looping forever calling this function)
            EffectsStack* pPPStack = EffectsStack::GetEffectsStackFromSelection();

            // Try to find the same effect in the new stack
            // If found then invoke a new Op to use the running editor on that effect
            BOOL bOK = pPPStack->FindBestProcessor(&m_strUndoEffectID, &m_iUndoStackPos);

            // Decide which sort of Operation we need to use instead...
            OpDescriptor* pOp = NULL;
            if (bOK)
            {
                // We found the right sort of Effect in the stack so we'll just edit that
                pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_EDIT_LIVEEFFECT);
            }
            else
            {
                // We didn't find the right sort of effect so we'll apply a brand new one!
                // At the top of the stack
                pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_APPLY_LIVEEFFECT);
                m_iUndoStackPos = STACKPOS_INSERT_TOP;
            }

            // Start a new Op but tell it to use the existing edit session instead of making a new one
            if (pOp)
            {
                OpLiveEffectParam Param;
                Param.strOpUnique = m_strUndoEffectID;
                Param.StackPosition = m_iUndoStackPos;
                Param.pPPStack = pPPStack;
                Param.bReUseEditor = TRUE;              // This is the important param!
                BOOL bValid = XPEHost::GetEffectDetails(m_strUndoEffectID, &Param.strMenuText, &Param.bIsDestructive);

                String_256 strDummy;
                if (bValid && pOp->GetOpsState(&strDummy).Greyed==FALSE)
                {
                    pOp->Invoke(&Param);

                    // Reset the Tool's current stack pointer now so that it doesn't need
                    // to be updated under idle events with the consequent call to this function
                    // and infinite loop...
                    Tool* pTool = Tool::GetCurrent();
                    if (pTool->GetID()==TOOLID_LIVEEFFECT)
                        ((LiveEffectsTool*)pTool)->UpdatePPStack(FALSE);

                    // If that successfully set up a new editor op then we're fine to carry on
                    if (XPEHost::GetCurrentLEOp()!=NULL)
                    {
                        delete pPPStack;
                        return (InformationBarOp::Message(Message));
                    }
                }
            }

            // If we get here then we must have failed in some way so close down the running editor
            XPEHost::EndEditLiveEffect();
            delete pPPStack;
*/
        }
    }

    // Pass message on
    return (InformationBarOp::Message(Message));
}    




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Order(DialogMsg* Message) 

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.
    Note:       Strings in this gadget are NOT distinct - you cannot use string matching
                on effect names to identify which is selected!

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

void LiveEffectsInfoBarOp::GadgetMessage_Order(DialogMsg* Message) 
{
    switch (Message->DlgMsg)
    {
        case DIM_SELECTION_CHANGED:
        {
            WORD Index;
            GetValueIndex(Message->GadgetID, &Index);
            EffectsStack* pStack = m_pTool->GetEffectsStack();
            PPStackLevel* pStackLevel = (PPStackLevel*)pStack->FindItem(Index);

            if (pStackLevel)
            {
                String_256 strEffectID = pStackLevel->strPostProID;
                m_pTool->SetCurrentEffectID(strEffectID);
                m_pTool->SetCurrentStackPos(Index);
            }
            else
            {
                m_pTool->SetCurrentEffectID(String(""));
                m_pTool->SetCurrentStackPos(Index);
            }

            UpdateState();

#ifdef FEATHER_EFFECT
            String_256 strCurrentEffectID = m_pTool->GetCurrentEffectID();
            if (strCurrentEffectID==String_256(POSTPRO_ID_FEATHER))
            {
                INT32 iStackPos = m_pTool->GetCurrentStackPos();
                ListRange* pFeatherRange = m_pTool->GetEffectsStack()->GetLevelRange(&iStackPos);
                OpChangeFeatherSize::SetEditContext(iStackPos, pFeatherRange);
                return;
            }
#endif

        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Edit(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Edit(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            String_256 strCurrentEffectID = m_pTool->GetCurrentEffectID();

            // Special case for old legacy effects
            if (strCurrentEffectID==String_256(POSTPRO_ID_SHADOW))
            {
                // Make sure the Shadow tool is current... (this func can be called from other tools)
                Tool* pShadowTool = Tool::FindTool(TOOLID_SOFTSHADOW);
                if (pShadowTool && !pShadowTool->IsCurrent())
                {
                    INT32 iStackPos = m_pTool->GetCurrentStackPos();
                    ListRange* pShadowRange = m_pTool->GetEffectsStack()->GetLevelRange(&iStackPos);
                    if (pShadowRange)
                    {
                        ((SoftShadowTool*)pShadowTool)->SelectShadowRange(pShadowRange);
                    }

                    pShadowTool->SetCurrent();
//                  INT32 iStackPos = m_pTool->GetCurrentStackPos();
//                  ListRange* pShadowRange = m_pTool->GetEffectsStack()->GetLevelRange(&iStackPos);
//                  ((SoftShadowTool*)pShadowTool)->SetShadowEditRange(pShadowRange, m_pTool->GetCurrentStackPos(), TRUE);  // Must be consistent because it comes from the PPStack
                    return;
                }
            }

#ifdef FEATHER_EFFECT
            if (strCurrentEffectID==String_256(POSTPRO_ID_FEATHER))
            {
                INT32 iStackPos = m_pTool->GetCurrentStackPos();
                ListRange* pFeatherRange = m_pTool->GetEffectsStack()->GetLevelRange(&iStackPos);
                OpChangeFeatherSize::SetEditContext(iStackPos, pFeatherRange);
                return;
            }
#endif

            if (strCurrentEffectID!=String(""))
            {
                OpDescriptor* pOp = NULL;
                pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_EDIT_LIVEEFFECT);

                if (pOp)
                {
                    // Commit changes of any modeless edit session already running
                    // and close it down ready for this new one...
                    if (XPEHost::IsEditSessionRunning())
                    {
                        XPEHost::EndEditLiveEffect();       // Could change PPStack!
                        m_pTool->UpdatePPStack();
                    }

                    OpLiveEffectParam Param;
                    Param.strOpUnique = strCurrentEffectID;
                    Param.StackPosition = m_pTool->GetCurrentStackPos();
                    Param.pPPStack = m_pTool->GetEffectsStack();
                    BOOL bValid = XPEHost::GetEffectDetails(strCurrentEffectID, &Param.strMenuText, &Param.bIsDestructive);

                    if (bValid)
                    {
                        pOp->Invoke(&Param);
                        return;
                    }
                }
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Add(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Add(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            LiveEffectsMenu* pLEMenu = new LiveEffectsMenu();
            if (pLEMenu)
            {
                pLEMenu->SetStackPos(STACKPOS_INSERT_TOP);
                pLEMenu->SetEffectsStack(m_pTool->GetEffectsStack());
                pLEMenu->Show();
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Label(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Label(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_RGT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            LiveEffectsMenu* pLEMenu = new LiveEffectsMenu();
            if (pLEMenu)
            {
                pLEMenu->SetStackPos(STACKPOS_INSERT_TOP);
                pLEMenu->SetEffectsStack(m_pTool->GetEffectsStack());
                pLEMenu->Show();
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Resolution(DialogMsg* Message) 

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    07/06/2005
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Resolution(DialogMsg* Message) 
{
    switch (Message->DlgMsg)
    {
        case DIM_SELECTION_CHANGED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            BOOL Valid = FALSE;
            INT32 lValue = 0;

            lValue = GetResDropListValue(_R(IDC_COMBOBOX_LE_RES), TRUE, &Valid);

            if (Valid)
            {
                // Update the resolution of the specified effects
                OpDescriptor* pOp = NULL;
                pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_CHANGE_EFFECT_RES);

                if (pOp)
                {
                    OpLiveEffectParam Param;
//                  Param.strOpUnique = strCurrentEffectID;
                    Param.StackPosition = m_pTool->GetCurrentStackPos();
                    Param.pPPStack = m_pTool->GetEffectsStack();
                    Param.dResolution = (double) lValue;
//                  BOOL bValid = XPEHost::GetEffectDetails(strCurrentEffectID, &Param.strMenuText, &Param.bIsDestructive);

                    pOp->Invoke(&Param);
                    return;
                }
            }

            // Repopulate the dropdown so that if the user missed off the ppi
            // it is restored
            EffectsStack* pStack = m_pTool->GetEffectsStack();
            INT32 iStackPos = m_pTool->GetCurrentStackPos();
            ListRange* pLevelRange = NULL;
            if (pStack)
                pLevelRange = pStack->GetLevelRange(&iStackPos);

            PopulateResolutionDropdown(pStack, pLevelRange, FALSE);
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_ToggleLock(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    07/06/2005
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_ToggleLock(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            // Toggle the state of the button
            m_bLockSwitchState = !m_bLockSwitchState;
            BOOL bIsSelected = GetBoolGadgetSelected(Message->GadgetID, m_bLockSwitchState);

            OpDescriptor* pOp = NULL;
            pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_CHANGE_EFFECT_LOCK);

            if (pOp)
            {
                OpLiveEffectParam Param;
//              Param.strOpUnique = strCurrentEffectID;
                Param.StackPosition = m_pTool->GetCurrentStackPos();
                Param.pPPStack = m_pTool->GetEffectsStack();
//              BOOL bValid = XPEHost::GetEffectDetails(strCurrentEffectID, &Param.strMenuText, &Param.bIsDestructive);
                Param.bForceLock = m_bLockSwitchState;

                pOp->Invoke(&Param);
                return;
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_ToggleLockAll(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    07/06/2005
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_ToggleLockAll(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            // Toggle the state of the button
            m_bLockAllSwitchState = !m_bLockAllSwitchState;
            BOOL bIsSelected = GetBoolGadgetSelected(Message->GadgetID, m_bLockAllSwitchState);

            OpDescriptor* pOp = NULL;
            pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_CHANGE_EFFECT_LOCKALL);

            if (pOp)
            {
                OpLiveEffectParam Param;
                Param.bForceLock = m_bLockAllSwitchState;

                pOp->Invoke(&Param);
                return;
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Insert(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Insert(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            LiveEffectsMenu* pLEMenu = new LiveEffectsMenu();
            if (pLEMenu)
            {
                pLEMenu->SetStackPos(m_pTool->GetCurrentStackPos());
                pLEMenu->SetEffectsStack(m_pTool->GetEffectsStack());
                pLEMenu->Show();
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Remove(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Remove(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            String_256 strCurrentEffectID = m_pTool->GetCurrentEffectID();
            if (strCurrentEffectID!=String(""))
            {
                // Commit changes of any modeless edit session already running
                // and close it down ready for this new one...
                if (XPEHost::IsEditSessionRunning())
                {
                    XPEHost::EndEditLiveEffect();       // Could change PPStack!
                    m_pTool->UpdatePPStack();
                }

                OpDescriptor* pOp = NULL;
                pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_DELETE_LIVEEFFECT);

                if (pOp)
                {
                    OpLiveEffectParam Param;
                    Param.strOpUnique = strCurrentEffectID;
                    Param.StackPosition = m_pTool->GetCurrentStackPos();
                    Param.pPPStack = m_pTool->GetEffectsStack();
                    BOOL bValid = XPEHost::GetEffectDetails(strCurrentEffectID, &Param.strMenuText, &Param.bIsDestructive);

                    // We want to delete the effect whether it was valid or not
                    pOp->Invoke(&Param);
                    return;
                }
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_RemoveAll(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_RemoveAll(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            OpDescriptor* pOp = NULL;
            pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_DELETEALL_LIVEEFFECT);

            if (pOp)
            {
                OpLiveEffectParam Param;
                pOp->Invoke(&Param);
                return;
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::GadgetMessage_Setup(DialogMsg* Message)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     Message - A dialog message 
    Returns:    The result of the message
    Purpose:    Takes a look at the message and if it is for me it responds to it.

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

void LiveEffectsInfoBarOp::GadgetMessage_Setup(DialogMsg* Message)
{
    switch (Message->DlgMsg)
    {
        case DIM_LFT_BN_CLICKED:
        {
            // Commit changes of any modeless edit session already running
            // and close it down ready for this new one...
            if (XPEHost::IsEditSessionRunning())
            {
                XPEHost::EndEditLiveEffect();       // Could change PPStack!
                m_pTool->UpdatePPStack();
            }

            if (ClickModifiers::GetClickModifiers().Adjust)
                XPEEditOp::EditPluginSettings();
            else
            {
                OpDescriptor* pOp = NULL;
                pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_PLUGSDLG);

                String_256 strDesc;
                if (pOp && !pOp->GetOpsState(&strDesc).Greyed)
                {
                    pOp->Invoke();
                    return;
                }
            }
        }
    }
}




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

>   void LiveEffectsInfoBarOp::HandleCreate()

    Author:     Diccon_Yamanaka (Xara Group Ltd) <camelotdev@xara.com>
    Created:    23/3/2000
    Inputs:     -
    Returns:    -
    Purpose:    Called when a DIM_CREATE message is received

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

void LiveEffectsInfoBarOp::HandleCreate()
{
    // Don't do anything if the Info bar isn't displayed
//  if (!LiveEffectsTool::IsCurrentTool() || !IsVisible()) return;

    if (WindowID!=NULL)
    {
        // Mark the controls as existing
        m_bControlsExist = TRUE;

        // Set the state of the pressure button according to the Op's state.
        // Why buttons on infobars can't dynamically auto-connect to their ops is beyond me
        UpdateState();
    }
}

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

>   void LiveEffectsInfoBarOp::SetToolActiveState(BOOL IsToolActive)

    Author:     Rik_Heywood (Xara Group Ltd) <camelotdev@xara.com>
    Created:    31/8/94
    Inputs:     IsToolActive - TRUE if the tool is becoming active, FALSE if it not
    Purpose:    Allows the info bar to know if it is valid or not

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

void LiveEffectsInfoBarOp::SetToolActiveState(BOOL IsToolActive)
{
    // Set the control state
    m_bControlsExist = IsToolActive;
}



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

>   virtual void LiveEffectsInfoBarOp::UpdateState()

    Author:     Jason_Williams (Xara Group Ltd) <camelotdev@xara.com>
    Created:    21/1/97

    Purpose:    Sets the state of button on the bar to keep them up to date

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

void LiveEffectsInfoBarOp::UpdateState()
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (CCamApp::DisableSys)            // Inside an error handler
        return;

    EffectsStack* pStack = m_pTool->GetEffectsStack();
    INT32 iStackPos = m_pTool->GetCurrentStackPos();

    IXMLDOMDocumentPtr pDoc = XPEHost::GetEditorsList();
    PopulateOrderDropdown(pStack, iStackPos);

    ListRange* pLevelRange = NULL;
    if (pStack)
        pLevelRange = pStack->GetLevelRange(&iStackPos);

    UpdateAddButton(pStack, pLevelRange);
    UpdateEditButton(pStack, pLevelRange);
    PopulateResolutionDropdown(pStack, pLevelRange);
    UpdateLockButton(pLevelRange);
    UpdateRemoveButton(pLevelRange);
    UpdateLockAllButton();
    UpdateRemoveAllButton();
    UpdateSetupButton();
}




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

>   void LiveEffectsInfoBarOp::PopulateOrderDropdown(ListRange* pPPStack, iSelectedStackPos)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::PopulateOrderDropdown(EffectsStack* pPPStack, INT32 iSelectedStackPos)
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (pPPStack==NULL)
        return;

    DeleteAllValues(_R(IDC_COMBOBOX_LE_ORDER));
    SetComboListLength(_R(IDC_COMBOBOX_LE_ORDER));
    SetGadgetWritable(_R(IDC_COMBOBOX_LE_ORDER), FALSE);

    if (!pPPStack->bConsistent)
    {
        // There is no consistent set of LiveEffects applied to the selection
        SetStringGadgetValue(_R(IDC_COMBOBOX_LE_ORDER), _R(IDS_LE_MANY));
        SetSelectedValueIndex(_R(IDC_COMBOBOX_LE_ORDER), 0);
    }
    else
    {
        if (pPPStack->IsEmpty())
        {
            // There is no consistent set of LiveEffects applied to the selection
            SetStringGadgetValue(_R(IDC_COMBOBOX_LE_ORDER), _R(IDS_LE_NONE));
            SetSelectedValueIndex(_R(IDC_COMBOBOX_LE_ORDER), 0);
        }
        else
        {
            // This is a consistent set of LiveEffects applied to the selection
            INT32 pos = 0;
            PPStackLevel* pLevel = (PPStackLevel*)pPPStack->GetHead();
            while (pLevel!=NULL)
            {
                String_64 strDisplayName;
                if (pLevel->pPPNode!=NULL && pLevel->pPPNode->IsBitmapEffect())
                    strDisplayName = ((NodeBitmapEffect*)(pLevel->pPPNode))->GetDisplayName();
                BOOL bDestructive = FALSE;
                BOOL bFound = XPEHost::GetEffectDetails(pLevel->strPostProID, &strDisplayName, &bDestructive);

                TCHAR Str[64];
                String_64 pjm(_R(IDS_LE_ORDER_FORMAT));
                if (!bFound)
                    pjm = String_64(_R(IDS_LE_ORDER_FORMAT_NOTFOUND));
                else if (bDestructive)
                    pjm = String_64(_R(IDS_LE_ORDER_FORMAT_DESTRUCTIVE));
                camSprintf(Str, pjm, pos+1, (LPTSTR)strDisplayName);
                String_64 strOrderedName(Str);

                SetStringGadgetValue(_R(IDC_COMBOBOX_LE_ORDER), &strOrderedName, FALSE, pos);

                if (pos==iSelectedStackPos)
                    SetSelectedValueIndex(_R(IDC_COMBOBOX_LE_ORDER), pos);

                pos++;
                pLevel = (PPStackLevel*)pPPStack->GetNext(pLevel);
            }
        }
    }
    SetComboListLength(_R(IDC_COMBOBOX_LE_ORDER));
}




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

>   void LiveEffectsInfoBarOp::PopulateResolutionDropdown(EffectsStack* pStack, ListRange* pLevelRange, BOOL bUpdateList = TRUE)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -

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

void LiveEffectsInfoBarOp::PopulateResolutionDropdown(EffectsStack* pStack, ListRange* pLevelRange, BOOL bUpdateList)
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (bUpdateList)
    {
        BuildResDropList(_R(IDC_COMBOBOX_LE_RES), TRUE, FALSE, -1);
        SetGadgetWritable(_R(IDC_COMBOBOX_LE_RES), TRUE);
    }

    if (pLevelRange==NULL)
        return;

    double dRes = -1;                               // -1 means "None"
    Node* pNode = pLevelRange->FindFirst();
    BOOL bCanChangeRes = FALSE;
    while (pNode)
    {
        if (pNode->IsBitmapEffect())
        {
            NodeBitmapEffect* pEffect = (NodeBitmapEffect*)pNode;
            bCanChangeRes = bCanChangeRes || pEffect->CanBeUnlocked();
            if (dRes==-1)
                dRes = pEffect->GetPixelsPerInchValue();
            else
            {
                if (dRes != pEffect->GetPixelsPerInchValue())
                {
                    dRes = -2;                      // -2 means "Many"
                    break;
                }
            }
        }

        pNode = pLevelRange->FindNext(pNode);
    }

    switch ((INT32)dRes)
    {
    case -2:    // Many
        // There is no consistent set of LiveEffects applied to the selection
        SetSelectedValueIndex(_R(IDC_COMBOBOX_LE_RES), -1);
        SetStringGadgetValue(_R(IDC_COMBOBOX_LE_RES), _R(IDS_LE_MANY), FALSE, -1);
        EnableGadget(_R(IDC_COMBOBOX_LE_RES), FALSE);
        break;

    case -1:    // None
        // There are no LiveEffects applied to the selection
        SetSelectedValueIndex(_R(IDC_COMBOBOX_LE_RES), -1);
        SetStringGadgetValue(_R(IDC_COMBOBOX_LE_RES), _R(IDS_LE_NONE), FALSE, -1);
        EnableGadget(_R(IDC_COMBOBOX_LE_RES), FALSE);
        break;

    case 0:     // Automatic
        // There is a consistent LiveEffect resolution of 0/automatic applied to the selection
        SetStringGadgetValue(_R(IDC_COMBOBOX_LE_RES), _R(IDS_LE_AUTO), FALSE, -1);
        SetSelectedValueIndex(_R(IDC_COMBOBOX_LE_RES), 0);
        EnableGadget(_R(IDC_COMBOBOX_LE_RES), bCanChangeRes);
        break;

    default:    // Consistent value
        SetResDropListValue(_R(IDC_COMBOBOX_LE_RES), TRUE, (INT32)dRes);
        EnableGadget(_R(IDC_COMBOBOX_LE_RES), bCanChangeRes);
        break;
    }
}




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

>   void LiveEffectsInfoBarOp::UpdateLockButton(ListRange* pLevelRange)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateLockButton(ListRange* pLevelRange)
{
// While the Lock button is hidden from the UI
// we have to avoid trying to use it (I can't find
// a way to test programmatically whether it exists)
return;

    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (pLevelRange==NULL)
        return;

    // Try to find a consistent lock state...
    BOOL bSomeOrAllAreLocked = FALSE;
    BOOL bEnableButton = FALSE;
    Node* pNode = pLevelRange->FindFirst();
    while (pNode)
    {
        if (pNode->IsBitmapEffect())
        {
            NodeBitmapEffect* pEffect = (NodeBitmapEffect*)pNode;
            if (!pEffect->IsFeatherEffect())
            {
                if (pEffect->IsLockedEffect())
                {
                    bEnableButton = (bEnableButton || pEffect->CanBeUnlocked());
                    bSomeOrAllAreLocked = (bSomeOrAllAreLocked || pEffect->CanBeUnlocked());
                    if (bSomeOrAllAreLocked && bEnableButton)
                        break;
                }
                else
                    bEnableButton = TRUE;
            }
        }

        pNode = pLevelRange->FindNext(pNode);
    }

    m_bLockSwitchState = bSomeOrAllAreLocked;
    SetBoolGadgetSelected(_R(IDC_CCBUTTON_LE_TOGGLELOCK), m_bLockSwitchState);
    EnableGadget(_R(IDC_CCBUTTON_LE_TOGGLELOCK), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateRemoveButton(ListRange* pLevelRange)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/06/2005
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateRemoveButton(ListRange* pLevelRange)
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (pLevelRange==NULL)
        return;

    BOOL bEnableButton = FALSE;
    Node* pNode = pLevelRange->FindFirst();
    while (pNode)
    {
        if (pNode->IsEffect())
        {
            bEnableButton = TRUE;
            break;
        }

        pNode = pLevelRange->FindNext(pNode);
    }

    EnableGadget(_R(IDC_CCBUTTON_LE_REMOVE), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateAddButton(EffectsStack* pStack, ListRange* pLevelRange)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/09/2005
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateAddButton(EffectsStack* pStack, ListRange* pLevelRange)
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (pLevelRange==NULL)
        return;

//  BOOL bEnableButton = !XPEHost::IsEditSessionRunning();
    BOOL bEnableButton = (pLevelRange->FindFirst()!=NULL);

    EnableGadget(_R(IDC_CCBUTTON_LE_ADD), bEnableButton);
    EnableGadget(_R(IDC_BUTTON_LE_ADD), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateAddButton(EffectsStack* pStack, ListRange* pLevelRange)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/09/2005
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateAddButton(EffectsStack* pStack, ListRange* pLevelRange)
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (pLevelRange==NULL)
        return;

//  BOOL bEnableButton = !XPEHost::IsEditSessionRunning();
    BOOL bEnableButton = (pLevelRange->FindFirst()!=NULL);

    EnableGadget(_R(IDC_CCBUTTON_LE_ADD), bEnableButton);
    EnableGadget(_R(IDC_BUTTON_LE_ADD), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateEditButton(EffectsStack* pStack, ListRange* pLevelRange)

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/06/2005
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateEditButton(EffectsStack* pStack, ListRange* pLevelRange)
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    if (pLevelRange==NULL)
        return;

    BOOL bEnableButton = FALSE;
    if (pStack->bConsistent /*&& !XPEHost::IsEditSessionRunning()*/)
    {
        Node* pNode = pLevelRange->FindFirst();
        while (pNode)
        {
            if (pNode->IsEffect())
            {
                bEnableButton = TRUE;
                break;
            }

            pNode = pLevelRange->FindNext(pNode);
        }
    }

    EnableGadget(_R(IDC_CCBUTTON_LE_EDIT), bEnableButton);
    EnableGadget(_R(IDC_BUTTON_LE_EDIT), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateLockAllButton()

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    06/10/2004
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateLockAllButton()
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    SelRange Sel(*(GetApplication()->FindSelection()));
    Sel.SetPromoteToParent(TRUE);
    Node* pNode = Sel.FindFirst();
    Node* pNextNode = NULL;
    BOOL bSomeOrAllAreLocked = FALSE;
    BOOL bEnableButton = FALSE;
    while (pNode && !bSomeOrAllAreLocked && !bEnableButton)
    {
        pNextNode = Sel.FindNext(pNode);

        // We must find all effects in our subtree
        Node* pScanNode = pNode->FindFirstPreorder();
        while (pScanNode)
        {
            if (pScanNode->IsBitmapEffect() && !((NodeBitmapEffect*)pScanNode)->IsFeatherEffect())
            {
                NodeBitmapEffect* pEffect = (NodeBitmapEffect*)pScanNode;
                if (pEffect->IsLockedEffect())
                {
                    bEnableButton = (bEnableButton || pEffect->CanBeUnlocked());
                    bSomeOrAllAreLocked = (bSomeOrAllAreLocked || pEffect->CanBeUnlocked());
                    if (bEnableButton && bSomeOrAllAreLocked)
                        break;
                }
                else
                    bEnableButton = TRUE;

                // We don't want to lock any effects under this one
                // So find the next node in preorder order outside the scan node
                pScanNode = pScanNode->FindNextPreorder(pNode, TRUE);
            }
            else
                pScanNode = pScanNode->FindNextPreorder(pNode);
        }

        pNode = pNextNode;
    }

    m_bLockAllSwitchState = bSomeOrAllAreLocked;
    SetBoolGadgetSelected(_R(IDC_CCBUTTON_LE_TOGGLELOCKALL), m_bLockAllSwitchState);
    EnableGadget(_R(IDC_CCBUTTON_LE_TOGGLELOCKALL), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateRemoveAllButton()

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    20/06/2005
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateRemoveAllButton()
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    SelRange Sel(*(GetApplication()->FindSelection()));
    Node* pNode = Sel.FindFirst();
    BOOL bEnableButton = FALSE;
    ListRange* pStack = NULL;
    while (pNode)
    {
        pStack = EffectsStack::GetEffectsStackFromNode(pNode, TRUE, TRUE);
        if (pStack)
        {
            bEnableButton = TRUE;
            break;
        }

        pNode = Sel.FindNext(pNode);
    }

    if (pStack)
    {
        delete pStack;
        pStack = NULL;
    }

    EnableGadget(_R(IDC_CCBUTTON_LE_REMOVEALL), bEnableButton);
}




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

>   void LiveEffectsInfoBarOp::UpdateSetupButton()

    Author:     Phil_Martin (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/07/2005
    Inputs:     -
    Outputs:    -
    Returns:    -
    Purpose:    -
********************************************************************************************/

void LiveEffectsInfoBarOp::UpdateSetupButton()
{
    // Don't try to set our controls when they're not there!
    if (!m_bControlsExist)
        return;

    OpDescriptor* pOp = NULL;
    pOp = OpDescriptor::FindOpDescriptor(OPTOKEN_PLUGSDLG);

    String_256 strDesc;
    EnableGadget(_R(IDC_BUTTON_LE_SETUP), pOp && !pOp->GetOpsState(&strDesc).Greyed);
}




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

>   void LiveEffectsInfoBarOp::SetGadgetWritable(INT32 id, BOOL enable)

    Author:     Will_Cowling (Xara Group Ltd) <camelotdev@xara.com>
    Created:    15/11/94
    Inputs:     id, the 'IDC_?' of the control.
                enable, TRUE to allow the control to be typed into. FALSE to make it
                        read only.
    Purpose:    Sets the state of the 'Read Only' flag of an edit field or combo box.
    NOTE!!!     This should be in DialogOp/DialogManager!

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

void LiveEffectsInfoBarOp::SetGadgetWritable(INT32 id, BOOL enable)
{
    // Get the window handle of the gadget, from the gadget ID
    HWND gadget = ::GetDlgItem(WindowID, id);

    // See if it's got a child window (it may be a Combo Box)
    HWND hEdit = ::ChildWindowFromPoint(gadget, CPoint(1,1));

    if (hEdit)              // Was there a child window ?
        gadget = hEdit;     // Yes, so send the message to it

    if (enable)
    {
        ::SendMessage(gadget, EM_SETREADONLY, FALSE, 0);    // Clear the Read Only Flag
    }
    else
    {
        ::SendMessage(gadget, EM_SETREADONLY, TRUE, 0);     // Set the Read Only Flag
    }
}

---