void
resetToU1()
{
DeleteObject(hBms[currInd]);
hBms[currInd] =
CopyImage(hBms[(currInd + HISTORYSIZE - 1) % HISTORYSIZE], IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG);
SelectObject(hDrawingDC, hBms[currInd]);
imgXRes = GetDIBWidth(hBms[currInd]);
imgYRes = GetDIBHeight(hBms[currInd]);
}
void CMainWindow::InsertSelectionFromHBITMAP(HBITMAP bitmap, HWND window)
{
int width = GetDIBWidth(bitmap);
int height = GetDIBHeight(bitmap);
int curWidth = imageModel.GetWidth();
int curHeight = imageModel.GetHeight();
if (width > curWidth || height > curHeight)
{
BOOL shouldEnlarge = TRUE;
if (askBeforeEnlarging)
{
TCHAR programname[20];
TCHAR shouldEnlargePromptText[100];
LoadString(hProgInstance, IDS_PROGRAMNAME, programname, SIZEOF(programname));
LoadString(hProgInstance, IDS_ENLARGEPROMPTTEXT, shouldEnlargePromptText, SIZEOF(shouldEnlargePromptText));
switch (MessageBox(shouldEnlargePromptText, programname, MB_YESNOCANCEL | MB_ICONQUESTION))
{
case IDYES:
break;
case IDNO:
shouldEnlarge = FALSE;
break;
case IDCANCEL:
return;
}
}
if (shouldEnlarge)
{
if (width > curWidth)
curWidth = width;
if (height > curHeight)
curHeight = height;
imageModel.Crop(curWidth, curHeight, 0, 0);
}
}
HWND hToolbar = FindWindowEx(toolBoxContainer.m_hWnd, NULL, TOOLBARCLASSNAME, NULL);
SendMessage(hToolbar, TB_CHECKBUTTON, ID_RECTSEL, MAKELPARAM(TRUE, 0));
toolBoxContainer.SendMessage(WM_COMMAND, ID_RECTSEL);
imageModel.CopyPrevious();
selectionModel.InsertFromHBITMAP(bitmap);
placeSelWin();
selectionWindow.ShowWindow(SW_SHOW);
ForceRefreshSelectionContents();
}
void
insertReversible(HBITMAP hbm)
{
DeleteObject(hBms[(currInd + 1) % HISTORYSIZE]);
hBms[(currInd + 1) % HISTORYSIZE] = hbm;
currInd = (currInd + 1) % HISTORYSIZE;
if (undoSteps < HISTORYSIZE - 1)
undoSteps++;
redoSteps = 0;
SelectObject(hDrawingDC, hBms[currInd]);
setImgXYRes(GetDIBWidth(hBms[currInd]), GetDIBHeight(hBms[currInd]));
}
void
redo()
{
if (redoSteps > 0)
{
ShowWindow(hSelection, SW_HIDE);
currInd = (currInd + 1) % HISTORYSIZE;
SelectObject(hDrawingDC, hBms[currInd]);
redoSteps--;
if (undoSteps < HISTORYSIZE - 1)
undoSteps++;
setImgXYRes(GetDIBWidth(hBms[currInd]), GetDIBHeight(hBms[currInd]));
}
}
void
newReversible()
{
DeleteObject(hBms[(currInd + 1) % HISTORYSIZE]);
hBms[(currInd + 1) % HISTORYSIZE] = CopyImage(hBms[currInd], IMAGE_BITMAP, 0, 0, LR_COPYRETURNORG);
currInd = (currInd + 1) % HISTORYSIZE;
if (undoSteps < HISTORYSIZE - 1)
undoSteps++;
redoSteps = 0;
SelectObject(hDrawingDC, hBms[currInd]);
imgXRes = GetDIBWidth(hBms[currInd]);
imgYRes = GetDIBHeight(hBms[currInd]);
imageSaved = FALSE;
}
int ImageModel::GetWidth()
{
return GetDIBWidth(hBms[currInd]);
}
LRESULT CALLBACK
SelectionWinProc(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam)
{
switch (message)
{
case WM_PAINT:
{
if (!moving)
{
HDC hDC = GetDC(hwnd);
DefWindowProc(hwnd, message, wParam, lParam);
SelectionFrame(hDC, 1, 1, rectSel_dest[2] * zoom / 1000 + 5,
rectSel_dest[3] * zoom / 1000 + 5);
ReleaseDC(hwnd, hDC);
}
break;
}
case WM_LBUTTONDOWN:
xPos = LOWORD(lParam);
yPos = HIWORD(lParam);
SetCapture(hwnd);
if (action != 0)
SetCursor(LoadCursor(NULL, cursors[action]));
moving = TRUE;
break;
case WM_MOUSEMOVE:
if (moving)
{
TCHAR sizeStr[100];
int xDelta;
int yDelta;
resetToU1();
xFrac += (short)LOWORD(lParam) - xPos;
yFrac += (short)HIWORD(lParam) - yPos;
if (zoom < 1000)
{
xDelta = xFrac * 1000 / zoom;
xFrac = 0;
yDelta = yFrac * 1000 / zoom;
yFrac = 0;
}
else
{
xDelta = xFrac * 1000 / zoom;
xFrac -= (xFrac * 1000 / zoom) * zoom / 1000;
yDelta = yFrac * 1000 / zoom;
yFrac -= (yFrac * 1000 / zoom) * zoom / 1000;
}
switch (action)
{
case 0:
rectSel_dest[0] += xDelta;
rectSel_dest[1] += yDelta;
break;
case 1:
rectSel_dest[0] += xDelta;
rectSel_dest[1] += yDelta;
rectSel_dest[2] -= xDelta;
rectSel_dest[3] -= yDelta;
break;
case 2:
rectSel_dest[1] += yDelta;
rectSel_dest[3] -= yDelta;
break;
case 3:
rectSel_dest[2] += xDelta;
rectSel_dest[1] += yDelta;
break;
case 4:
rectSel_dest[0] += xDelta;
rectSel_dest[2] -= xDelta;
break;
case 5:
rectSel_dest[2] += xDelta;
break;
case 6:
rectSel_dest[0] += xDelta;
rectSel_dest[2] -= xDelta;
rectSel_dest[3] += yDelta;
break;
case 7:
rectSel_dest[3] += yDelta;
break;
case 8:
rectSel_dest[2] += xDelta;
rectSel_dest[3] += yDelta;
break;
}
_stprintf(sizeStr, _T("%d x %d"), rectSel_dest[2], rectSel_dest[3]);
SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) sizeStr);
if (action != 0)
StretchBlt(hDrawingDC, rectSel_dest[0], rectSel_dest[1], rectSel_dest[2], rectSel_dest[3], hSelDC, 0, 0, GetDIBWidth(hSelBm), GetDIBHeight(hSelBm), SRCCOPY);
else
if (transpBg == 0)
MaskBlt(hDrawingDC, rectSel_dest[0], rectSel_dest[1], rectSel_dest[2], rectSel_dest[3],
hSelDC, 0, 0, hSelMask, 0, 0, MAKEROP4(SRCCOPY, SRCAND));
else
{
HBITMAP tempMask;
HBRUSH oldBrush;
HDC tempDC;
tempMask = CreateBitmap(rectSel_dest[2], rectSel_dest[3], 1, 1, NULL);
oldBrush = SelectObject(hSelDC, CreateSolidBrush(bgColor));
tempDC = CreateCompatibleDC(hSelDC);
SelectObject(tempDC, tempMask);
MaskBlt(tempDC, 0, 0, rectSel_dest[2], rectSel_dest[3], hSelDC, 0, 0, hSelMask, 0, 0,
MAKEROP4(NOTSRCCOPY, BLACKNESS));
DeleteDC(tempDC);
DeleteObject(SelectObject(hSelDC, oldBrush));
MaskBlt(hDrawingDC, rectSel_dest[0], rectSel_dest[1], rectSel_dest[2], rectSel_dest[3],
hSelDC, 0, 0, tempMask, 0, 0, MAKEROP4(SRCCOPY, SRCAND));
DeleteObject(tempMask);
}
SendMessage(hImageArea, WM_PAINT, 0, 0);
xPos = LOWORD(lParam);
yPos = HIWORD(lParam);
//SendMessage(hwnd, WM_PAINT, 0, 0);
}
else
{
int w = rectSel_dest[2] * zoom / 1000 + 6;
int h = rectSel_dest[3] * zoom / 1000 + 6;
xPos = LOWORD(lParam);
yPos = HIWORD(lParam);
SendMessage(hStatusBar, SB_SETTEXT, 2, (LPARAM) NULL);
action = identifyCorner(xPos, yPos, w, h);
if (action != 0)
SetCursor(LoadCursor(NULL, cursors[action]));
}
break;
case WM_LBUTTONUP:
if (moving)
{
moving = FALSE;
ReleaseCapture();
if (action != 0)
{
HDC hTempDC;
HBITMAP hTempBm;
hTempDC = CreateCompatibleDC(hSelDC);
hTempBm = CreateDIBWithProperties(rectSel_dest[2], rectSel_dest[3]);
SelectObject(hTempDC, hTempBm);
SelectObject(hSelDC, hSelBm);
StretchBlt(hTempDC, 0, 0, rectSel_dest[2], rectSel_dest[3], hSelDC, 0, 0,
GetDIBWidth(hSelBm), GetDIBHeight(hSelBm), SRCCOPY);
DeleteObject(hSelBm);
hSelBm = hTempBm;
hTempBm = CreateBitmap(rectSel_dest[2], rectSel_dest[3], 1, 1, NULL);
SelectObject(hTempDC, hTempBm);
SelectObject(hSelDC, hSelMask);
StretchBlt(hTempDC, 0, 0, rectSel_dest[2], rectSel_dest[3], hSelDC, 0, 0,
GetDIBWidth(hSelMask), GetDIBHeight(hSelMask), SRCCOPY);
DeleteObject(hSelMask);
hSelMask = hTempBm;
SelectObject(hSelDC, hSelBm);
DeleteDC(hTempDC);
}
placeSelWin();
ShowWindow(hSelection, SW_HIDE);
ShowWindow(hSelection, SW_SHOW);
}
break;
default:
return DefWindowProc(hwnd, message, wParam, lParam);
}
return 0;
}