//used when a user clicks on a menu item to ensure the option is 'checked'
//correctly
void CheckAllMenuItemsAppropriately(HWND hwnd)
{
CheckMenuItemAppropriately(hwnd, IDM_SHOW_REGIONS, Prm.bRegions);
CheckMenuItemAppropriately(hwnd, IDM_SHOW_STATES, Prm.bStates);
CheckMenuItemAppropriately(hwnd, IDM_SHOW_IDS, Prm.bIDs);
CheckMenuItemAppropriately(hwnd, IDM_AIDS_SUPPORTSPOTS, Prm.bSupportSpots);
CheckMenuItemAppropriately(hwnd, ID_AIDS_SHOWTARGETS, Prm.bViewTargets);
CheckMenuItemAppropriately(hwnd, IDM_AIDS_HIGHLITE, Prm.bHighlightIfThreatened);
}
LRESULT CALLBACK WindowProc( HWND hwnd,
UINT msg,
WPARAM wParam,
LPARAM lParam ){
static int cxClient, cyClient;
static HDC hdcBackBuffer;
static HBITMAP hBitmap = NULL;
static HBITMAP hOldBitmap = NULL;
static TCHAR filename[MAX_PATH], titlename[MAX_PATH];
static RECT rectClientWindow;
static int currentSearchButton = 0;
static int ToolBarHeight;
switch(msg){
case WM_CREATE:{
srand((unsigned) time(NULL));
hdcBackBuffer = CreateCompatibleDC(NULL);
//get the DC for front buffer
HDC hdc = GetDC(hwnd);
hBitmap = CreateCompatibleBitmap( hdc,
cxClient,
cyClient);
hOldBitmap = (HBITMAP)SelectObject( hdcBackBuffer, hBitmap );
ReleaseDC(hwnd, hdc);
g_pathFinder = new PathFinder();
CheckMenuItemAppropriately( hwnd, IDM_VIEW_TILES, g_pathFinder->IsShowTilesOn());
CheckMenuItemAppropriately( hwnd, IDM_VIEW_GRAPH, g_pathFinder->IsShowGraphOn());
}
break;
case UM_TOOLBAR_HAS_BEEN_CREATED:{
RECT rectToolbar;
GetWindowRect( g_hwndToolbar, &rectToolbar);
ToolBarHeight = abs(rectToolbar.bottom - rectToolbar.top);
rectClientWindow.left = 0;
rectClientWindow.right = CLIENTWIDTH;
rectClientWindow.top = 0;
rectClientWindow.bottom = CLIENTHEIGHT + INFOWINDOWHEIGHT;
ResizeToCorrectClientArea( hwnd, ToolBarHeight, rectClientWindow );
SendMessage( g_hwndToolbar, WM_SIZE, wParam, lParam );
GetClientRect( hwnd, &rectClientWindow );
rectClientWindow.bottom = CLIENTHEIGHT - ToolBarHeight - 1;
hdcBackBuffer = CreateCompatibleDC(NULL);
HDC hdc = GetDC(hwnd);
hBitmap = CreateCompatibleBitmap( hdc,
rectClientWindow.right,
rectClientWindow.bottom );
hOldBitmap = (HBITMAP)SelectObject(hdcBackBuffer, hBitmap);
ReleaseDC(hwnd, hdc);
}
break;
case WM_KEYUP:{
switch(wParam){
case VK_ESCAPE:
SendMessage( hwnd, WM_DESTROY, NULL, NULL ); break;
case 'G':
g_pathFinder->ToggleShowGraph(); break;
case 'T':
g_pathFinder->ToggleShowTiles(); break;
} // switch
RedrawWindowRect( hwnd, false, rectClientWindow );
}
break;
case WM_LBUTTONDOWN:{
g_pathFinder->PaintTerrain(MAKEPOINTS(lParam));
RedrawWindowRect( hwnd, false, rectClientWindow );
}
break;
case WM_MOUSEMOVE:{
switch(wParam){
case MK_LBUTTON:{
g_pathFinder->PaintTerrain(MAKEPOINTS(lParam));
RedrawWindowRect( hwnd, false, rectClientWindow );
}
break;
}
}
// break;
case WM_COMMAND:{
switch(wParam){
case ID_BUTTON_STOP:
g_pathFinder->ChangeBrush( PathFinder::TARGET ); break;
case ID_BUTTON_START:
g_pathFinder->ChangeBrush( PathFinder::SOURCE ); break;
case ID_BUTTON_OBSTACLE:
g_pathFinder->ChangeBrush( PathFinder::OBSTACLE ); break;
case ID_BUTTON_WATER:
g_pathFinder->ChangeBrush( PathFinder::WATER ); break;
case ID_BUTTON_MUD:
g_pathFinder->ChangeBrush( PathFinder::MUD ); break;
case ID_BUTTON_NORMAL:
g_pathFinder->ChangeBrush( PathFinder::NORMAL ); break;
case ID_BUTTON_DFS:
g_pathFinder->CreatePathDFS();
currentSearchButton = ID_BUTTON_DFS; break;
case ID_BUTTON_BFS:
g_pathFinder->CreatePathBFS();
currentSearchButton = ID_BUTTON_BFS; break;
case ID_BUTTON_DIJKSTRA:
g_pathFinder->CreatePathDijkstra();
currentSearchButton = ID_BUTTON_DIJKSTRA; break;
case ID_BUTTON_ASTAR:
g_pathFinder->CreatePathAStar();
currentSearchButton = ID_BUTTON_ASTAR; break;
case ID_MENU_LOAD:
FileOpenDlg( hwnd, filename, titlename, "PathFinder Files (*.map)", "map" );
if(strlen(titlename) > 0)
g_pathFinder->Load(titlename);
SendMessage( g_hwndToolbar, TB_CHECKBUTTON, (WPARAM)currentSearchButton, (LPARAM)false );
break;
case ID_MENU_SAVEAS:
FileSaveDlg( hwnd, filename, titlename, "PathFinder Files (*.map)", "map" );
if(strlen(titlename) > 0)
g_pathFinder->Save(titlename);
break;
case ID_MENU_NEW:
g_pathFinder->CreateGraph( NUMCELLSX, NUMCELLSY );
SendMessage( g_hwndToolbar, TB_CHECKBUTTON, (WPARAM)currentSearchButton, (LPARAM)false );
break;
case IDM_VIEW_GRAPH:
if(GetMenuState(GetMenu(hwnd), IDM_VIEW_GRAPH, MFS_CHECKED) && MF_CHECKED){
ChangeMenuState( hwnd, IDM_VIEW_GRAPH, MFS_UNCHECKED );
g_pathFinder->SwitchGraphOff();
}
else{
ChangeMenuState( hwnd, IDM_VIEW_GRAPH, MFS_CHECKED );
g_pathFinder->SwitchGraphOn();
}
break;
case IDM_VIEW_TILES:
if(GetMenuState(GetMenu(hwnd), IDM_VIEW_TILES, MFS_CHECKED) && MF_CHECKED){
ChangeMenuState( hwnd, IDM_VIEW_TILES, MFS_UNCHECKED );
g_pathFinder->SwitchTilesOff();
}
else{
ChangeMenuState( hwnd, IDM_VIEW_TILES, MFS_CHECKED );
g_pathFinder->SwitchTilesOn();
}
break;
} // switch
RedrawWindowRect( hwnd, false, rectClientWindow );
}
case WM_PAINT:{
PAINTSTRUCT ps;
BeginPaint(hwnd, &ps);
BitBlt( hdcBackBuffer, 0, 0, cxClient, cyClient, NULL, NULL, NULL, WHITENESS );
wpgdi->StartDrawing(hdcBackBuffer);
g_pathFinder->Render();
wpgdi->StopDrawing(hdcBackBuffer);
BitBlt( ps.hdc, 0, 0, cxClient, cyClient, hdcBackBuffer, 0, 0, SRCCOPY );
EndPaint(hwnd, &ps);
}
break;
case WM_SIZE:{
cxClient = LOWORD(lParam);
cyClient = HIWORD(lParam);
SelectObject(hdcBackBuffer, hOldBitmap);
DeleteObject(hBitmap);
HDC hdc = GetDC(hwnd);
hBitmap = CreateCompatibleBitmap( hdc,
rectClientWindow.right,
rectClientWindow.bottom );
ReleaseDC(hwnd, hdc);
SelectObject(hdcBackBuffer, hBitmap);
}
break;
case WM_DESTROY:{
SelectObject(hdcBackBuffer, hOldBitmap);
DeleteDC(hdcBackBuffer);
DeleteObject(hBitmap);
DeleteObject(hOldBitmap);
PostQuitMessage(0);
}
break;
} // end switch
return DefWindowProc( hwnd, msg, wParam, lParam );
}
