CMain Class Reference

The main class. More...

#include <CMain.h>

Public Member Functions
	CMain (const HWND hwnd)
	Constructor. More...
	~CMain ()
	Destructor. More...
HRESULT	LoadTileSet (const UINT idm, const UINT n)
	Load tileset. More...
void	Generate ()
	Generate a Wang tiling. More...
void	Draw ()
	Draw the Wang tiling. More...
void	OnPaint ()
	Paint the client area of the window. More...
Gdiplus::Bitmap *	GetBitmap ()
	Get pointer to bitmap. More...

Private Member Functions
void	CreateMenus ()
	Create menus. More...

Private Attributes
HWND	m_hWnd = nullptr
	Window handle. More...
HMENU	m_hTilesetMenu = nullptr
	Handle to the Generate menu. More...
ULONG_PTR	m_gdiplusToken = 0
	GDI+ token. More...
Gdiplus::Bitmap *	m_pBitmap = nullptr
	Pointer to a bitmap image. More...
CWangTiler *	m_pWangTiler
	Pointer to the Wang tiler. More...
Gdiplus::Bitmap **	m_pTile = nullptr
	The tile pointer array. More...
UINT	m_nNumTiles = 0
	Number of tiles in tileset. More...

Detailed Description

The interface between I/O from Windows (input from the drop-down menus, output to the client area of the window), the Wang tiler, and the GDI+ graphics interface.

Definition at line 39 of file CMain.h.

Constructor & Destructor Documentation

CMain()

CMain::CMain

(

const HWND

hwnd

)

Initialize GDI+, create the menus, load the initial tile set, generate a Wang tiling, then draw it to the bitmap. If the default tileset is not found, then do a fatal app exit.

Parameters

hwnd	Window handle.

Definition at line 39 of file CMain.cpp.

~CMain()

CMain::~CMain

(

)

Delete GDI+ objects, then shut down GDI+.

Definition at line 55 of file CMain.cpp.

Member Function Documentation

CreateMenus()

void CMain::CreateMenus ( )

private

Add menus to the menu bar and store the Tileset menu handle, which will be needed later to set checkmarks.

Definition at line 159 of file CMain.cpp.

Draw()

void CMain::Draw

(

)

Draw the Wang tiling stored in the array m_pTile to the bitmap m_pBitmap using the tiles stored in array m_pTile. If m_pBitmap is nullptr, then a new bitmap of the appropriate size is created.

Definition at line 117 of file CMain.cpp.

Generate()

void CMain::Generate

(

)

Definition at line 247 of file CMain.cpp.

GetBitmap()

Gdiplus::Bitmap * CMain::GetBitmap

(

)

Reader function for the bitmap pointer m_pBitmap which, it is assumed, contains a bitmap Wang tiling.

Returns

The bitmap pointer m_pBitmap.

Definition at line 255 of file CMain.cpp.

LoadTileSet()

HRESULT CMain::LoadTileSet	(	const UINT	idm,
		const UINT	n
	)

Load a tileset into m_pTile and set the checkmarks on the Tileset menu. Assumes that m_hTilesetMenu contains a handle to the Tileset menu and that the tile images are in separate numbered png files in a hard-coded subfolder of the tiles folder.

Parameters

idm	A menu identifier for the required tileset.
n	Number of tiles in the tileset.

Returns

S_OK if the tileset loaded correctly, E_FAIL otherwise.

Definition at line 182 of file CMain.cpp.

OnPaint()

void CMain::OnPaint

(

)

Draw the bitmap m_pBitmap to the window client area, scaled down if necessary. This function should only be called in response to a WM_PAINT message.

Definition at line 77 of file CMain.cpp.

Member Data Documentation

m_gdiplusToken

ULONG_PTR CMain::m_gdiplusToken = 0

private

Definition at line 44 of file CMain.h.

m_hTilesetMenu

HMENU CMain::m_hTilesetMenu = nullptr

private

Definition at line 42 of file CMain.h.

m_hWnd

HWND CMain::m_hWnd = nullptr

private

Definition at line 41 of file CMain.h.

m_nNumTiles

UINT CMain::m_nNumTiles = 0

private

Definition at line 50 of file CMain.h.

m_pBitmap

Gdiplus::Bitmap* CMain::m_pBitmap = nullptr

private

Definition at line 46 of file CMain.h.

m_pTile

Gdiplus::Bitmap** CMain::m_pTile = nullptr

private

Definition at line 49 of file CMain.h.

m_pWangTiler

CWangTiler* CMain::m_pWangTiler

private

Definition at line 48 of file CMain.h.