long WMMouseMove (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
if (fBlocking) {
InvertBlock (hwnd, ptBeg, ptEnd);
ptEnd.x = LOWORD (lParam);
ptEnd.y = HIWORD (lParam);
InvertBlock (hwnd, ptBeg, ptEnd);
}
return 0;
}
long WMLButtonUp (HWND hwnd, WPARAM wParam, LPARAM lParam)
{
HDC hdc;
RECT rect;
if (fBlocking) {
fCapturing = fBlocking = FALSE;
InvertBlock (hwnd, ptBeg, ptEnd);
ptEnd.x = LOWORD (lParam);
ptEnd.y = HIWORD (lParam);
SetCursor (LoadCursor (NULL, IDC_WAIT));
hdc = GetDC (hwnd);
GetClientRect (hwnd, &rect);
StretchBlt (hdc, 0, 0, rect.right, rect.bottom,
hdc, ptBeg.x, ptBeg.y, ptEnd.x - ptBeg.x, ptEnd.y - ptBeg.y, SRCCOPY);
ReleaseDC (hwnd, hdc);
SetCursor (LoadCursor (NULL, IDC_ARROW));
ReleaseCapture ();
}
return 0;
}
void InvertBlock_CurrPos(
struct Tracker_Windows *window
){
ADD_UNDO(Range(
window,
window->wblock,
0,window->wblock->block->num_tracks-1,
window->wblock->curr_realline
));
InvertBlock(window->wblock->block);
UpdateAndClearSomeTrackReallinesAndGfxWTracks(
window,
window->wblock,
0,
window->wblock->block->num_tracks-1
);
}
LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
static BOOL bCapturing, bBlocking;
static HBITMAP hBitmap;
static HWND hwndScr;
static POINT ptBeg, ptEnd;
BITMAP bm;
HBITMAP hBitmapClip;
HDC hdc, hdcMem;
int iEnable;
PAINTSTRUCT ps;
RECT rect;
switch (message)
{
case WM_LBUTTONDOWN:
if (!bCapturing)
{
if (LockWindowUpdate(hwndScr = GetDesktopWindow()))
{
bCapturing = TRUE;
SetCapture(hwnd);
SetCursor(LoadCursor(NULL, IDC_CROSS));
}
else
MessageBeep(0);
}
return 0;
case WM_RBUTTONDOWN:
if (bCapturing)
{
bBlocking = TRUE;
ptBeg.x = LOWORD(lParam);
ptBeg.y = HIWORD(lParam);
ptEnd = ptBeg;
InvertBlock(hwndScr, hwnd, ptBeg, ptEnd);
}
return 0;
case WM_MOUSEMOVE:
if (bBlocking)
{
InvertBlock(hwndScr, hwnd, ptBeg, ptEnd);
ptEnd.x = LOWORD(lParam);
ptEnd.y = HIWORD(lParam);
InvertBlock(hwndScr, hwnd, ptBeg, ptEnd);
}
return 0;
case WM_LBUTTONUP:
case WM_RBUTTONUP:
if (bBlocking)
{
InvertBlock(hwndScr, hwnd, ptBeg, ptEnd);
ptEnd.x = LOWORD(lParam);
ptEnd.y = HIWORD(lParam);
if (hBitmap)
{
DeleteObject(hBitmap);
hBitmap = NULL;
}
hdc = GetDC(hwnd);
hdcMem = CreateCompatibleDC(hdc);
hBitmap = CreateCompatibleBitmap(hdc,
abs(ptEnd.x - ptBeg.x),
abs(ptEnd.y - ptBeg.y));
SelectObject(hdcMem, hBitmap);
StretchBlt(hdcMem, 0, 0, abs(ptEnd.x - ptBeg.x),
abs(ptEnd.y - ptBeg.y),
hdc, ptBeg.x, ptBeg.y, ptEnd.x - ptBeg.x,
ptEnd.y - ptBeg.y, SRCCOPY);
DeleteDC(hdcMem);
ReleaseDC(hwnd, hdc);
InvalidateRect(hwnd, NULL, TRUE);
}
if (bBlocking || bCapturing)
{
bBlocking = bCapturing = FALSE;
SetCursor(LoadCursor(NULL, IDC_ARROW));
ReleaseCapture();
LockWindowUpdate(NULL);
}
return 0;
case WM_PAINT:
hdc = BeginPaint(hwnd, &ps);
if (hBitmap)
{
GetClientRect(hwnd, &rect);
hdcMem = CreateCompatibleDC(hdc);
SelectObject(hdcMem, hBitmap);
GetObject(hBitmap, sizeof (BITMAP), (PSTR)&bm);
SetStretchBltMode(hdc, COLORONCOLOR);
StretchBlt(hdc, 0, 0, rect.right, rect.bottom,
hdcMem, 0, 0, bm.bmWidth, bm.bmHeight, SRCCOPY);
DeleteDC(hdcMem);
}
EndPaint(hwnd, &ps);
return 0;
case WM_DESTROY:
if (hBitmap)
DeleteObject(hBitmap);
PostQuitMessage(0);
return 0;
}
return DefWindowProc(hwnd, message, wParam, lParam);
}
