rlm@1: // ZoomControl.cpp : implementation file
rlm@1: //
rlm@1: 
rlm@1: #include "stdafx.h"
rlm@1: #include "ZoomControl.h"
rlm@1: 
rlm@1: bool ZoomControl::isRegistered = false;
rlm@1: 
rlm@1: /////////////////////////////////////////////////////////////////////////////
rlm@1: // ZoomControl
rlm@1: 
rlm@1: ZoomControl::ZoomControl()
rlm@1: {
rlm@1: 	ZeroMemory(colors, 3*64);
rlm@1: 	selected = -1;
rlm@1: 	registerClass();
rlm@1: }
rlm@1: 
rlm@1: ZoomControl::~ZoomControl()
rlm@1: {}
rlm@1: 
rlm@1: BEGIN_MESSAGE_MAP(ZoomControl, CWnd)
rlm@1: //{{AFX_MSG_MAP(ZoomControl)
rlm@1: ON_WM_PAINT()
rlm@1: ON_WM_LBUTTONDOWN()
rlm@1: ON_WM_ERASEBKGND()
rlm@1: //}}AFX_MSG_MAP
rlm@1: END_MESSAGE_MAP()
rlm@1: 
rlm@1: /////////////////////////////////////////////////////////////////////////////
rlm@1: // ZoomControl message handlers
rlm@1: 
rlm@1: void ZoomControl::registerClass()
rlm@1: {
rlm@1: 	if (!isRegistered)
rlm@1: 	{
rlm@1: 		WNDCLASS wc;
rlm@1: 		ZeroMemory(&wc, sizeof(wc));
rlm@1: 		wc.style         = CS_HREDRAW | CS_VREDRAW | CS_GLOBALCLASS;
rlm@1: 		wc.lpfnWndProc   = (WNDPROC) ::DefWindowProc;
rlm@1: 		wc.hInstance     = AfxGetInstanceHandle();
rlm@1: 		wc.hIcon         = NULL;
rlm@1: 		wc.hCursor       = LoadCursor(NULL, IDC_ARROW);
rlm@1: 		wc.hbrBackground = (HBRUSH)GetStockObject(BLACK_BRUSH);
rlm@1: 		wc.lpszMenuName  = NULL;
rlm@1: 		wc.lpszClassName = "VbaZoomControl";
rlm@1: 		AfxRegisterClass(&wc);
rlm@1: 		isRegistered = true;
rlm@1: 	}
rlm@1: }
rlm@1: 
rlm@1: void ZoomControl::OnPaint()
rlm@1: {
rlm@1: 	CPaintDC dc(this); // device context for painting
rlm@1: 
rlm@1: 	RECT rect;
rlm@1: 	GetClientRect(&rect);
rlm@1: 
rlm@1: 	int w = rect.right - rect.left;
rlm@1: 	int h = rect.bottom - rect.top;
rlm@1: 
rlm@1: 	CDC memDC ;
rlm@1: 	memDC.CreateCompatibleDC(&dc);
rlm@1: 	CBitmap bitmap, *pOldBitmap;
rlm@1: 	bitmap.CreateCompatibleBitmap(&dc, w, h);
rlm@1: 
rlm@1: 	pOldBitmap = memDC.SelectObject(&bitmap);
rlm@1: 
rlm@1: 	int multX = w / 8;
rlm@1: 	int multY = h / 8;
rlm@1: 
rlm@1: 	int i;
rlm@1: 	for (i = 0; i < 64; i++)
rlm@1: 	{
rlm@1: 		CBrush b;
rlm@1: 		b.CreateSolidBrush(RGB(colors[i*3+2], colors[i*3+1], colors[i*3]));
rlm@1: 
rlm@1: 		RECT r;
rlm@1: 		int  x = i & 7;
rlm@1: 		int  y = i / 8;
rlm@1: 		r.top    = y*multY;
rlm@1: 		r.left   = x*multX;
rlm@1: 		r.bottom = r.top + multY;
rlm@1: 		r.right  = r.left + multX;
rlm@1: 		memDC.FillRect(&r, &b);
rlm@1: 		b.DeleteObject();
rlm@1: 	}
rlm@1: 
rlm@1: 	CPen pen;
rlm@1: 	pen.CreatePen(PS_SOLID, 1, RGB(192, 192, 192));
rlm@1: 	CPen *old = (CPen *)memDC.SelectObject(&pen);
rlm@1: 
rlm@1: 	for (i = 0; i < 8; i++)
rlm@1: 	{
rlm@1: 		memDC.MoveTo(0, i * multY);
rlm@1: 		memDC.LineTo(w, i * multY);
rlm@1: 		memDC.MoveTo(i * multX, 0);
rlm@1: 		memDC.LineTo(i * multX, h);
rlm@1: 	}
rlm@1: 
rlm@1: 	if (selected != -1)
rlm@1: 	{
rlm@1: 		CPen pen2;
rlm@1: 		pen2.CreatePen(PS_SOLID, 2, RGB(255, 0, 0));
rlm@1: 		CPen *old2 = (CPen *)memDC.SelectObject(&pen2);
rlm@1: 
rlm@1: 		int startX = (selected & 7)*multX+1;
rlm@1: 		int startY = (selected / 8)*multY+1;
rlm@1: 		int endX   = startX + multX-2;
rlm@1: 		int endY   = startY + multY-2;
rlm@1: 
rlm@1: 		memDC.MoveTo(startX, startY);
rlm@1: 		memDC.LineTo(endX, startY);
rlm@1: 		memDC.LineTo(endX, endY);
rlm@1: 		memDC.LineTo(startX, endY);
rlm@1: 		memDC.LineTo(startX, startY-1);
rlm@1: 		memDC.SelectObject(old2);
rlm@1: 		pen2.DeleteObject();
rlm@1: 	}
rlm@1: 	memDC.SelectObject(old);
rlm@1: 	pen.DeleteObject();
rlm@1: 
rlm@1: 	dc.BitBlt(0, 0, w, h,
rlm@1: 	          &memDC, 0, 0, SRCCOPY);
rlm@1: 
rlm@1: 	memDC.SelectObject(pOldBitmap);
rlm@1: 	bitmap.DeleteObject();
rlm@1: 	memDC.DeleteDC();
rlm@1: }
rlm@1: 
rlm@1: void ZoomControl::OnLButtonDown(UINT nFlags, CPoint point)
rlm@1: {
rlm@1: 	RECT rect;
rlm@1: 	GetClientRect(&rect);
rlm@1: 
rlm@1: 	int height = rect.bottom - rect.top;
rlm@1: 	int width  = rect.right - rect.left;
rlm@1: 
rlm@1: 	int multX = width / 8;
rlm@1: 	int multY = height / 8;
rlm@1: 
rlm@1: 	selected = point.x / multX + 8 * (point.y / multY);
rlm@1: 
rlm@1: 	int c     = point.x / multX + 8 * (point.y/multY);
rlm@1: 	u16 color = colors[c*3] << 7 |
rlm@1: 	            colors[c*3+1] << 2 |
rlm@1: 	            (colors[c*3+2] >> 3);
rlm@1: 
rlm@1: 	GetParent()->PostMessage(WM_COLINFO,
rlm@1: 	                         color,
rlm@1: 	                         0);
rlm@1: 
rlm@1: 	Invalidate();
rlm@1: }
rlm@1: 
rlm@1: BOOL ZoomControl::OnEraseBkgnd(CDC*pDC)
rlm@1: {
rlm@1: 	return TRUE;
rlm@1: }
rlm@1: 
rlm@1: void ZoomControl::setColors(const u8 *c)
rlm@1: {
rlm@1: 	memcpy(colors, c, 3*64);
rlm@1: 	selected = -1;
rlm@1: 	Invalidate();
rlm@1: }