Mac Power 1997 December/MACPOWER-1997-12.ISO.7z/MACPOWER-1997-12.ISO/AMUG/PROGRAMMING/Raven 1.2 Examples.sit/Raven 1.2 Examples/Quill/Source/RsrcPopupMenu.cpp

C/C++ Source or Header | 1997-08-26 | 6KB | 229 lines

/*
 *    File:        RsrcPopupMenu.cpp
 *    Function:    A popup menu used for picking things like SPen and STextTrait resource.
 *    Written by:    Jesse Jones
 *
 *  Copyright ｩ 1997 Jesse Jones.
 *    For conditions of distribution and use, see copyright notice in ZTypes.h
 *
 *    Change History (most recent first):
 *
 *         <1>     5/11/97    JDJ        Created
 */

#include "RsrcPopupMenu.h"

#include <Vector.h>

#include <ZDialogBoxes.h>
#include <ZIntConversions.h>
#include <ZResUtils.h>
#include <ZStringUtils.h>
#include <ZView.h>


__MSL_FIX_ITERATORS__(SResourceInfo);
__MSL_FIX_ITERATORS__(const SResourceInfo);

// ===================================================================================
//    Internal Functions
// ===================================================================================

//---------------------------------------------------------------
//
// GetIndInfo
//
// This menu is non-essential so we'll eat any errors.
//
//---------------------------------------------------------------
static SResourceInfo GetIndInfo(ResType type, short index)
{
    SResourceInfo info;
    info.id = 0;

    Handle hand = nil;

    {
    TNoResLoad noLoad;
        hand = GetIndResource(type, index);
    }

    if (hand != nil) {
        Str255    name;

        GetResInfo(hand, &info.id, &info.type, name);
        if (ResError() == noErr)
            info.name = PStrToStr(name);

        ReleaseResource(hand);
    }

    return info;
}

inline bool operator==(const SResourceInfo& lhs, const SResourceInfo& rhs)    {return lhs.id == rhs.id;}
inline bool operator<(const SResourceInfo& lhs, const SResourceInfo& rhs)    {return lhs.id < rhs.id;}

#pragma mark -

// ===================================================================================
//    class CRsrcPopupMenu
// ===================================================================================

static TReanimatorRegister<CRsrcPopupMenu> sRsrcPopupRegistrar;

//---------------------------------------------------------------
//
// CRsrcPopupMenu::~CRsrcPopupMenu
//
//---------------------------------------------------------------
CRsrcPopupMenu::~CRsrcPopupMenu()
{
}


//---------------------------------------------------------------
//
// CRsrcPopupMenu::CRsrcPopupMenu
//
//---------------------------------------------------------------
CRsrcPopupMenu::CRsrcPopupMenu(const string& name, TView* superView, const TRect& frame, const string& title, short titleWidth, const string& mesg, ResID menuID) : TPopupMenu(name, superView, frame, title, titleWidth, mesg, menuID)
{
    mRsrcType = '????';
    mRsrcID   = 0;
}


//---------------------------------------------------------------
//
// CRsrcPopupMenu::Create                                [static]
//
//---------------------------------------------------------------
MReanimatable* CRsrcPopupMenu::Create(MReanimatable* parent)
{
    return new CRsrcPopupMenu("????", dynamic_cast<TView*>(parent), TRect(0, 0, 144, 20), "Menu", 60, kNothingCmd, 249);
}


//---------------------------------------------------------------
//
// CRsrcPopupMenu::SetID
//
//---------------------------------------------------------------
void CRsrcPopupMenu::SetID(ResID id)
{
    if (id != mRsrcID) {
        mRsrcID = id;

        string text = LongToStr(mRsrcID);

        bool found = false;
        short count = this->GetCount();
        for (short index = 0; index < count - 3 && !found; index++) {
            string item = this->GetItem(index);
            if (item.find(text) == 0) {
                this->SetValue(index + 1);
                found = true;
            }
        }

        if (!found)
            this->SetValue(count);
    }
}

#pragma mark ﾊ

//---------------------------------------------------------------
//
// CRsrcPopupMenu::OnReanimated    SPen
//
//---------------------------------------------------------------
void CRsrcPopupMenu::OnReanimated()
{
    Inherited::OnReanimated();

    // Find out which resource type we're dealing with.
    MenuHandle menuH = this->GetMenuHandle();
    if ((**menuH).menuID == 312)                        // ･･･ﾊwould be much nicer to stream this in
        mRsrcType = 'Txtr';
    else if ((**menuH).menuID >= 313 && (**menuH).menuID <= 318)
        mRsrcType = 'Pen ';
    else
        DEBUGSTR("CRsrcPopupMenu::OnReanimated can't handle this id!");

    vector<SResourceInfo, allocator<SResourceInfo> > infos;

    // Get a list of all the resources.
    short count = CountResources(mRsrcType);
    for (short index = 1; index <= count; index++) {
        SResourceInfo info = GetIndInfo(mRsrcType, index);
        if (info.id != 0)
            infos.push_back(info);
    }

    // Sort the list by id (GetIndResource returns resources in
    // the order they were added to the resource fork).
    sort(infos.begin(), infos.end());

    // Add the infos to the menu.
    if (infos.size() > 0) {
        short count = this->GetCount();
        short index = count - 2;

        vector<SResourceInfo, allocator<SResourceInfo> >::iterator iter = infos.begin();
        while (iter != infos.end()) {
            SResourceInfo info = *iter++;

            if (iter == infos.end() || info != *iter) {        // Don't add the same id more than once
                if (info.id >= 256) {                        // Don't add Raven or Quill traits.
                    string text = LongToStr(info.id) + " (" + info.name + ")";
                    this->InsertItem(text, index++);
                }
            }
        }

        if (this->GetCount() != count)
            this->InsertItem("(-", count - 2);
    }

    // Update mRsrcID (based on the initial item).
    this->DoUpdateID();
}


//---------------------------------------------------------------
//
// CRsrcPopupMenu::OnClickedControl
//
//---------------------------------------------------------------
void CRsrcPopupMenu::OnClickedControl()
{
    Inherited::OnClickedControl();

    if (this->GetValue() == this->GetCount())
        (void) GetShort(208, &mRsrcID);
    else
        this->DoUpdateID();
}

#pragma mark ﾊ

//---------------------------------------------------------------
//
// CRsrcPopupMenu::DoUpdateID
//
//---------------------------------------------------------------
void CRsrcPopupMenu::DoUpdateID()
{
    short value = this->GetValue();

    string item = this->GetItem(value - 1);
    string text = Before(item, "(");

    if (text != "")
        mRsrcID = StrToLong(text);
}