Files
Aerofoil/PortabilityLayer/DialogManager.cpp
2019-12-31 02:42:20 -05:00

486 lines
11 KiB
C++

#include "DialogManager.h"
#include "ResourceManager.h"
#include "PLArrayView.h"
#include "PLDialogs.h"
#include "PLBigEndian.h"
#include "PLPasStr.h"
#include "ResTypeID.h"
#include "SharedTypes.h"
#include "WindowDef.h"
#include "WindowManager.h"
#include <stdlib.h>
#include <new>
namespace PortabilityLayer
{
namespace SerializedDialogItemTypeCodes
{
enum SerializedDialogItemTypeCode
{
kUserItem = 0x00,
kButton = 0x04,
kCheckBox = 0x05,
kRadioButton = 0x06,
kCustomControl = 0x07,
kLabel = 0x08,
kEditBox = 0x10,
kIcon = 0x20,
kImage = 0x40,
};
}
typedef SerializedDialogItemTypeCodes::SerializedDialogItemTypeCode SerializedDialogItemTypeCode_t;
struct DialogTemplateItem
{
Rect m_rect;
int16_t m_id;
uint8_t m_serializedType;
bool m_enabled;
Str255 m_name;
};
class DialogItemImpl : public DialogItem
{
public:
DialogItemImpl(const DialogTemplateItem &templateItem);
virtual ~DialogItemImpl();
Rect GetRect() const override;
virtual bool Init() = 0;
virtual void Destroy() = 0;
protected:
Rect m_rect;
int16_t m_id;
bool m_enabled;
PascalStr<255> m_name;
};
template<class T>
class DialogItemSpec : public DialogItemImpl
{
public:
DialogItemSpec(const DialogTemplateItem &tmpl)
: DialogItemImpl(tmpl)
{
}
void Destroy() override
{
static_cast<T*>(this)->~T();
free(static_cast<T*>(this));
}
static DialogItemSpec *Create(const DialogTemplateItem &tmpl)
{
void *storage = malloc(sizeof(T));
if (!storage)
return nullptr;
T *item = new (storage) T(tmpl);
DialogItemImpl *dItem = static_cast<DialogItemImpl*>(item);
if (!dItem->Init())
{
dItem->Destroy();
return nullptr;
}
return item;
}
};
class DialogItem_EditBox final : public DialogItemSpec<DialogItem_EditBox>
{
public:
explicit DialogItem_EditBox(const DialogTemplateItem &tmpl);
bool Init() override;
};
class DialogItem_Label final : public DialogItemSpec<DialogItem_Label>
{
public:
explicit DialogItem_Label(const DialogTemplateItem &tmpl);
bool Init() override;
};
class DialogItem_Unknown final : public DialogItemSpec<DialogItem_Unknown>
{
public:
explicit DialogItem_Unknown(const DialogTemplateItem &tmpl);
bool Init() override;
};
class DialogTemplate final
{
public:
DialogTemplate(DialogTemplateItem *itemStorage, size_t numItems);
void DeserializeItems(const uint8_t *data);
void Destroy();
ArrayView<const DialogTemplateItem> GetItems() const;
private:
DialogTemplateItem *m_items;
size_t m_numItems;
};
class DialogImpl final : public Dialog
{
public:
void Destroy() override;
Window *GetWindow() const override;
ArrayView<DialogItem*const> GetItems() const override;
bool Populate(DialogTemplate *tmpl);
static DialogImpl *Create(Window *window, size_t numItems);
private:
explicit DialogImpl(Window *window, DialogItem **items, size_t numItems);
~DialogImpl();
Window *m_window;
DialogItem **m_items;
size_t m_numItems;
};
DialogItemImpl::DialogItemImpl(const DialogTemplateItem &templateItem)
: m_enabled(templateItem.m_enabled)
, m_id(templateItem.m_id)
, m_name(PLPasStr(templateItem.m_name))
, m_rect(templateItem.m_rect)
{
}
DialogItemImpl::~DialogItemImpl()
{
}
Rect DialogItemImpl::GetRect() const
{
return m_rect;
}
DialogItem_EditBox::DialogItem_EditBox(const DialogTemplateItem &tmpl)
: DialogItemSpec<DialogItem_EditBox>(tmpl)
{
}
bool DialogItem_EditBox::Init()
{
return true;
}
DialogItem_Label::DialogItem_Label(const DialogTemplateItem &tmpl)
: DialogItemSpec<DialogItem_Label>(tmpl)
{
}
bool DialogItem_Label::Init()
{
return true;
}
DialogItem_Unknown::DialogItem_Unknown(const DialogTemplateItem &tmpl)
: DialogItemSpec<DialogItem_Unknown>(tmpl)
{
}
bool DialogItem_Unknown::Init()
{
return true;
}
DialogTemplate::DialogTemplate(DialogTemplateItem *itemStorage, size_t numItems)
: m_items(itemStorage)
, m_numItems(numItems)
{
}
void DialogTemplate::DeserializeItems(const uint8_t *data)
{
for (size_t i = 0; i < m_numItems; i++)
{
BERect itemRect;
uint8_t itemType;
data += 4; // Unused
memcpy(&itemRect, data, 8);
data += 8;
itemType = *data;
data++;
uint8_t nameLength = *data;
data++;
const uint8_t *nameBytes = data;
size_t nameLengthPadded = nameLength;
if ((nameLength & 1) == 1)
nameLengthPadded++;
data += nameLengthPadded;
DialogTemplateItem &item = m_items[i];
item.m_rect = itemRect.ToRect();
item.m_id = 0;
item.m_serializedType = (itemType & 0x7f);
item.m_enabled = ((itemType & 0x80) == 0);
item.m_name[0] = nameLength;
memcpy(item.m_name + 1, nameBytes, nameLength);
if (item.m_serializedType == SerializedDialogItemTypeCodes::kCustomControl || item.m_serializedType == SerializedDialogItemTypeCodes::kImage || item.m_serializedType == SerializedDialogItemTypeCodes::kIcon)
{
memcpy(&item.m_id, item.m_name + 1, 2);
ByteSwap::BigInt16(item.m_id);
}
}
}
void DialogTemplate::Destroy()
{
this->~DialogTemplate();
free(this);
}
ArrayView<const DialogTemplateItem> DialogTemplate::GetItems() const
{
return ArrayView<const DialogTemplateItem>(m_items, m_numItems);
}
void DialogImpl::Destroy()
{
PortabilityLayer::WindowManager::GetInstance()->DestroyWindow(m_window);
this->~DialogImpl();
free(this);
}
Window *DialogImpl::GetWindow() const
{
return m_window;
}
ArrayView<DialogItem*const> DialogImpl::GetItems() const
{
ArrayView<DialogItem*const> iter(m_items, m_numItems);
return ArrayView<DialogItem*const>(m_items, m_numItems);
}
bool DialogImpl::Populate(DialogTemplate *tmpl)
{
ArrayView<const DialogTemplateItem> templateItems = tmpl->GetItems();
const size_t numItems = templateItems.Count();
for (size_t i = 0; i < numItems; i++)
{
const DialogTemplateItem &templateItem = templateItems[i];
DialogItem *ditem = nullptr;
switch (templateItem.m_serializedType)
{
case SerializedDialogItemTypeCodes::kLabel:
ditem = DialogItem_Label::Create(templateItem);
break;
case SerializedDialogItemTypeCodes::kEditBox:
ditem = DialogItem_EditBox::Create(templateItem);
break;
default:
ditem = DialogItem_Unknown::Create(templateItem);
break;
}
if (!ditem)
return false;
m_items[i] = ditem;
}
return true;
}
DialogImpl *DialogImpl::Create(Window *window, size_t numItems)
{
size_t alignedSize = sizeof(DialogImpl) + PL_SYSTEM_MEMORY_ALIGNMENT + 1;
alignedSize -= alignedSize % PL_SYSTEM_MEMORY_ALIGNMENT;
const size_t itemsSize = sizeof(DialogItemImpl) * numItems;
void *storage = malloc(alignedSize + itemsSize);
if (!storage)
return nullptr;
DialogItem **itemsList = reinterpret_cast<DialogItem **>(static_cast<uint8_t*>(storage) + alignedSize);
for (size_t i = 0; i < numItems; i++)
itemsList[i] = nullptr;
return new (storage) DialogImpl(window, itemsList, numItems);
}
DialogImpl::DialogImpl(Window *window, DialogItem **itemsList, size_t numItems)
: m_window(window)
, m_items(itemsList)
, m_numItems(numItems)
{
}
DialogImpl::~DialogImpl()
{
for (size_t i = 0; i < m_numItems; i++)
{
if (DialogItem *item = m_items[i])
static_cast<DialogItemImpl*>(item)->Destroy();
}
}
// DLOG resource format:
// DialogResourceDataHeader
// Variable-length PStr: Title
// Optional: Positioning (2 byte mask)
struct DialogResourceDataHeader
{
BERect m_rect;
BEInt16_t m_style;
uint8_t m_visible;
uint8_t m_unusedA;
uint8_t m_hasCloseBox;
uint8_t m_unusedB;
BEUInt32_t m_referenceConstant;
BEInt16_t m_itemsResID;
};
class DialogManagerImpl final : public DialogManager
{
public:
Dialog *LoadDialog(int16_t resID, Window *behindWindow) override;
DialogTemplate *LoadDialogTemplate(int16_t resID);
static DialogManagerImpl *GetInstance();
private:
static DialogManagerImpl ms_instance;
};
Dialog *DialogManagerImpl::LoadDialog(int16_t resID, Window *behindWindow)
{
ResourceManager *rm = ResourceManager::GetInstance();
THandle<uint8_t> dlogH = rm->GetResource('DLOG', resID).StaticCast<uint8_t>();
const uint8_t *dlogData = *dlogH;
const uint8_t *dlogDataEnd = dlogData + dlogH.MMBlock()->m_size;
DialogResourceDataHeader header;
memcpy(&header, dlogData, sizeof(header));
const uint8_t *titlePStr = dlogData + sizeof(header);
const uint8_t *positioningData = titlePStr + 1 + titlePStr[0]; // May be OOB
BEUInt16_t positionSpec(0);
if (positioningData != dlogDataEnd)
memcpy(&positionSpec, positioningData, 2);
const Rect rect = header.m_rect.ToRect();
const int16_t style = header.m_style;
dlogH.Dispose();
DialogTemplate *dtemplate = LoadDialogTemplate(header.m_itemsResID);
const size_t numItems = (dtemplate == nullptr) ? 0 : dtemplate->GetItems().Count();
if (!rect.IsValid())
{
dtemplate->Destroy();
return nullptr;
}
WindowManager *wm = PortabilityLayer::WindowManager::GetInstance();
WindowDef wdef = WindowDef::Create(rect, 0, header.m_visible != 0, header.m_hasCloseBox != 0, header.m_referenceConstant, positionSpec, PLPasStr(titlePStr));
Window *window = wm->CreateWindow(wdef);
if (!window)
{
dtemplate->Destroy();
return nullptr;
}
wm->PutWindowBehind(window, behindWindow);
DialogImpl *dialog = DialogImpl::Create(window, numItems);
if (!dialog)
{
dtemplate->Destroy();
wm->DestroyWindow(window);
return nullptr;
}
if (!dialog->Populate(dtemplate))
{
dialog->Destroy();
dtemplate->Destroy();
wm->DestroyWindow(window);
return nullptr;
}
return dialog;
}
DialogTemplate *DialogManagerImpl::LoadDialogTemplate(int16_t resID)
{
ResourceManager *rm = ResourceManager::GetInstance();
THandle<uint8_t> dtemplateH = rm->GetResource('DITL', resID).StaticCast<uint8_t>();
if (!dtemplateH)
return nullptr;
uint16_t numItems;
memcpy(&numItems, *dtemplateH, 2);
ByteSwap::BigUInt16(numItems);
size_t dtlAlignedSize = sizeof(DialogTemplate) + PL_SYSTEM_MEMORY_ALIGNMENT - 1;
dtlAlignedSize -= dtlAlignedSize % PL_SYSTEM_MEMORY_ALIGNMENT;
const size_t dtlItemSize = sizeof(DialogTemplateItem) * numItems;
void *storage = malloc(dtlAlignedSize + dtlItemSize);
if (!storage)
{
dtemplateH.Dispose();
return nullptr;
}
uint8_t *itemsLoc = static_cast<uint8_t*>(storage) + dtlAlignedSize;
DialogTemplate *dtemplate = new (storage) DialogTemplate(reinterpret_cast<DialogTemplateItem*>(itemsLoc), numItems);
dtemplate->DeserializeItems((*dtemplateH) + 2);
dtemplateH.Dispose();
return dtemplate;
}
DialogManagerImpl *DialogManagerImpl::GetInstance()
{
return &ms_instance;
}
DialogManagerImpl DialogManagerImpl::ms_instance;
DialogManager *DialogManager::GetInstance()
{
return DialogManagerImpl::GetInstance();
}
}