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|
//{$APPTYPE GUI}
{$MODE DELPHI}
uses
windows, math, cairo, cairowin32, puissance4_u;
{$R *.res}
const
CLASSNAME = 'FENETRE_DESSIN_CAIRO';
IMAGE_WIDTH = 40;
IMAGE_HEIGHT = IMAGE_WIDTH;
STEP = 8;
DELAY = 20;
IDM_QUIT = 101;
IDM_NEW = 102;
IDM_ABOUT = 103;
var
gHandle: THandle;
hMenu, hSousMenu: THandle;
gLeft, gTop, gX, gY: integer;
gImages: array[boolean] of pcairo_surface_t;
gGrille: TGrillePuissance4;
gJoueur: boolean;
function CreerImage(const r1, g1, b1, r2, g2, b2: double): pcairo_surface_t;
var
cr: pcairo_t;
begin
result := cairo_win32_surface_create_with_dib(CAIRO_FORMAT_ARGB32, IMAGE_WIDTH, IMAGE_HEIGHT);
cr := cairo_create(result);
cairo_scale(cr, IMAGE_WIDTH, IMAGE_HEIGHT);
cairo_set_source_rgb(cr, r1, g1, b1);
cairo_paint(cr);
cairo_set_line_width(cr, 1 / 100);
cairo_arc(cr, 0.5, 0.5, 0.4, 0, 2 * PI);
cairo_set_source_rgb(cr, r2, g2, b2);
cairo_fill_preserve(cr);
cairo_destroy(cr);
end;
procedure Dessiner(const aDC: HDC; const aSurface: pcairo_surface_t);
begin
BitBlt(
aDC,
gLeft,
gTop,
IMAGE_WIDTH,
IMAGE_HEIGHT,
cairo_win32_surface_get_dc(aSurface),
0,
0,
SRCCOPY
);
end;
function WinProc(aHandle: THandle; aMsg: UINT; aWP: WPARAM; aLP: LPARAM): LRESULT; stdcall;
var
vPS: TPaintStruct;
vDC: HDC;
vRECT: RECT;
begin
result := 0;
case aMsg of
WM_KEYDOWN:
if aWP = VK_ESCAPE then
begin
PostQuitMessage(0);
exit;
end;
WM_DESTROY:
begin
PostQuitMessage(0);
exit;
end;
WM_PAINT:
begin
if gX > 0 then
begin
vDC := BeginPaint(gHandle, vPS);
Dessiner(vDC, gImages[gJoueur]);
EndPaint(gHandle, vPS);
end;
exit;
end;
WM_TIMER:
begin
if gX > 0 then
if gTop <= (7 - gY) * IMAGE_HEIGHT then
begin
SetRect(vRECT, gLeft, Max(gTop - STEP, 0), gLeft + IMAGE_WIDTH, gTop + IMAGE_HEIGHT);
InvalidateRect(aHandle, vRECT, TRUE);
UpdateWindow(aHandle);
Inc(gTop, STEP);
end else
begin
gTop := 0;
gX := 0;
end;
exit;
end;
WM_LBUTTONDOWN:
begin
WriteLn('WM_LBUTTONDOWN');
if gX = 0 then
begin
gX := LOWORD(aLP) div IMAGE_WIDTH + 1;
if ColonnePleine(gGrille, gX) then
gX := 0
else
begin
gLeft := IMAGE_WIDTH * (gX - 1);
gY := LigneLibre(gGrille, gX);
gGrille[gX, gY] := TRUE;
gJoueur := not gJoueur;
end;
end;
exit;
end;
WM_COMMAND:
begin
case LoWord(aWP) of
IDM_QUIT: PostMessage(aHandle, WM_CLOSE, 0, 0);
IDM_NEW:
begin
end;
IDM_ABOUT:
begin
MessageBox(aHandle, '', '', MB_OK);
end;
end;
exit;
end;
end;
result := DefWindowProc(aHandle, aMsg, aWP, aLP);
end;
procedure TextMode;
begin
KillTimer(gHandle, 1);
DestroyWindow(gHandle);
cairo_surface_destroy(gImages[FALSE]);
cairo_surface_destroy(gImages[TRUE]);
end;
procedure DoEvents;
var
vMsg: TMsg;
begin
while PeekMessage(vMsg, 0, 0, 0, PM_REMOVE) do
begin
TranslateMessage(vMsg);
DispatchMessage(vMsg);
if vMsg.Message = WM_QUIT then
begin
TextMode;
Halt;
end;
end;
end;
procedure GraphMode(const aClientWidth, aClientHeight: integer);
var
vClass: TWndClass;
vBorder, vCaption, vMenu, vWidth, vHeight: integer;
vRECT: RECT;
vLOGBRUSH: LOGBRUSH;
vR, vG, vB: double;
begin
vClass.style := CS_HREDRAW or CS_VREDRAW;;
vClass.lpfnWndProc := @WinProc;
vClass.cbClsExtra := 0;
vClass.cbWndExtra := 0;
vClass.hInstance := system.hInstance;
vClass.hIcon := LoadImage(hInstance, MAKEINTRESOURCE(1), IMAGE_ICON, 0, 0, 0);
vClass.hCursor := LoadCursor(0, IDC_ARROW);
vClass.hbrBackground := GetStockObject(LTGRAY_BRUSH);
vClass.lpszMenuName := nil;
vClass.lpszClassName := CLASSNAME;
if RegisterClass(vClass) = 0 then
Halt;
{ Récupération de la couleur du fond de la fenêtre et conversion des valeurs au format Cairo, pour
être passées à la fonction CreerImage(). }
if GetObject(vClass.hbrBackground, SizeOf(LOGBRUSH), @vLOGBRUSH) <> 0 then
begin
vR := GetRValue(vLOGBRUSH.lbColor) / 255;
vG := GetGValue(vLOGBRUSH.lbColor) / 255;
vB := GetBValue(vLOGBRUSH.lbColor) / 255;
end else
begin
vR := 0;
vG := 0;
vB := 0;
end;
hSousMenu := CreateMenu;
AppendMenu(hSousMenu, MF_STRING, IDM_NEW, 'Nouvelle partie');
AppendMenu(hSousMenu, MF_STRING, IDM_ABOUT, pchar(Utf8ToAnsi('À propos')));
AppendMenu(hSousMenu, MF_STRING, IDM_QUIT, 'Quitter');
hMenu := CreateMenu;
AppendMenu(hMenu, MF_POPUP, hSousMenu, 'Jeu');
vBorder := 2 * (GetSystemMetrics(SM_CXDLGFRAME) + GetSystemMetrics(SM_CXBORDER));
vMenu := GetSystemMetrics(SM_CYMENU);
vCaption := GetSystemMetrics(SM_CYCAPTION);
vWidth := aClientWidth + 2 * vBorder;
vHeight := aClientHeight + 2 * vBorder + vMenu + vCaption;
gHandle := CreateWindow(
CLASSNAME,
'Puissance 4',
WS_OVERLAPPEDWINDOW or WS_VISIBLE,
(GetSystemMetrics(SM_CXFULLSCREEN) - vWidth) div 2,
(GetSystemMetrics(SM_CYFULLSCREEN) - vHeight) div 2,
vWidth,
vHeight,
0,
hMenu,
hInstance,
nil
);
if gHandle = 0 then
Halt;
GetClientRect(gHandle, @vRECT);
WriteLn(vRECT.right - vRECT.left, 'x', vRECT.bottom - vRECT.top);
gImages[FALSE] := CreerImage(vR, vG, vB, 1, 0, 0);
gImages[TRUE] := CreerImage(vR, vG, vB, 0, 0, 1);
gLeft := 0;
gTop := 0;
gX := 0;
gGrille := NouvelleGrille;
gJoueur := FALSE;
SetTimer(gHandle, 1, DELAY, nil);
end;
begin
GraphMode(7 * IMAGE_WIDTH, 7 * IMAGE_HEIGHT);
while TRUE do
DoEvents;
end. |
Application qui se gèle après l'appel de la fonction MessageBox
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