[Plib-users] R: Problem with a PUI-Win32-Native
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[Plib-users] R: Problem with a PUI-Win32-Native
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From: Paolo L. <p.l...@ci...> - 2008-02-29 13:47:10
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I'm not a PUI user so I don't know if this could be useful, yet in your code
I reported below:
case WM_LBUTTONDOWN:
oldMousePos.x = currentMousePos.x = LOWORD (lParam);
oldMousePos.y = currentMousePos.y = HIWORD (lParam);
if( puMouse ( 1, PU_DOWN, currentMousePos.x,
currentMousePos.y ))
==>> //{ }//MessageBox(NULL,"DOWN","down",MB_OK); }
isMouseActive = true;
break;
case WM_LBUTTONUP:
currentMousePos.x = LOWORD (lParam);
currentMousePos.y = HIWORD (lParam);
if( puMouse ( 1, PU_UP, currentMousePos.x, currentMousePos.y
))
{}// MessageBox(NULL,"UP","UP",MB_OK); }
isMouseActive = false;
break;
Looking at the pointed line, are you sure you want to set isMouseActive =
true when the call to puMouse returns 1? This is what actually happens since
the subject line is commented out. Which is different, I see, from the
similar code line for the button up case.
Paolo
> -----Messaggio originale-----
> Da: pli...@li...
> [mailto:pli...@li...] Per conto
> di pos...@ca...
> Inviato: venerdì 29 febbraio 2008 0.58
> A: pli...@li...
> Oggetto: [Plib-users] Problem with a PUI-Win32-Native
>
> Hi all,
>
> I integrated plib into my GLUT-based application. It works
> GREAT. I'm one more happy user in my sandbox.
>
> Now, problem arises when integrating inside a WIN32
> application, whose windows does (and will, probably) not be
> wrapped with GLUT.
>
> The following code below, using basis example, illustrates
> the problem :
> a device context gets created, some opengl is painted inside,
> and the gui (a button and a menu) gets called.
>
> Running the application : the gui shows up.
> when I check if a gui's element is hit by a mouse clic, the
> puMouse(..) returns correct, identifying wether an element
> was clicked or not.
> But no objects callbacks occurs and the submenu stays
> invisible. The menu is hilighted when the mouse points over
> and the buttonbox can be checked.
>
> What am I doing wrong ?
>
>
> /* PUI - WIN32 - NO GLUT */
>
> #pragma comment ( lib, "fnt.lib" )
> #pragma comment ( lib, "pui.lib" )
> #pragma comment ( lib, "sg.lib" )
> #pragma comment ( lib, "ul.lib" )
>
> #define PU_USE_NATIVE
> #include <plib/pu.h>
> #include<windows.h>
> #include<gl/gl.h>
> #include<gl/glu.h>
>
> void Render();
> bool InitializeGL();
>
> HDC g_HDC;
>
> float xRotation = 0.0f;
> float yRotation = 0.0f;
>
> int gWidth = 0;
> int gHeight = 0;
>
>
> void button_cb(puObject *) {MessageBox(NULL,"ok","ok",MB_OK);}
> void foo_cb (puObject *) {MessageBox(NULL,"foo","foo",MB_OK);}
> void bar_cb (puObject *) {MessageBox(NULL,"bar","bar",MB_OK);}
> void exit_cb (puObject *) {exit(0);}
>
> char *file_submenu [] = { "Exit","foo","bar", NULL } ;
> puCallback file_submenu_cb[] = { exit_cb, foo_cb, bar_cb,
> NULL } ; char * PUIlabels[5] = { "Label1", "Label2", "This is
> Label3", "Four", NULL } ;
>
>
> puMenuBar * menu;
> puOneShot *b;
> puButtonBox * checkList;
>
> void SetupPixelFormat(HDC hDC)
> {
> int nPixelFormat;
>
> static PIXELFORMATDESCRIPTOR pfd = {
> sizeof(PIXELFORMATDESCRIPTOR), // size of structure.
> 1, // always 1.
> PFD_DRAW_TO_WINDOW | //
> support window
> PFD_SUPPORT_OPENGL | //
> support OpenGl
> PFD_DOUBLEBUFFER, //
> support double buffering
> PFD_TYPE_RGBA, // support RGBA
> 16, // bit
> color mode
> 0, 0, 0, 0, 0, 0, //
> ignore color bits
> 0, // no
> alpha buffer
> 0, //
> ignore shift bit
> 0, // no
> accumulation buffer
> 0, 0, 0, 0, //
> ignore accumulation bits.
> 16, //
> number of depth buffer bits.
> 0, //
> number of stencil buffer bits.
> 0, // 0
> means no auxiliary buffer
> PFD_MAIN_PLANE, // The
> main drawing plane
> 0, //
> this is reserved
> 0, 0, 0 }; //
> layer masks ignored.
>
> // this chooses the best pixel format and returns index.
> nPixelFormat = ChoosePixelFormat(hDC, &pfd);
>
> // This set pixel format to device context.
> SetPixelFormat(hDC, nPixelFormat, &pfd); }
>
>
> LRESULT CALLBACK WndProc(HWND hwnd, UINT message, WPARAM
> wParam, LPARAM lParam) {
> static HGLRC hRC; // Rendering context.
> static HDC hDC; // Device context.
> int width, height; // The window
> width and height.
> static POINT oldMousePos; // Last mouse position.
> static POINT currentMousePos; // Current mouse
> position.
> static bool isMouseActive; // Is the left
> mouse button down.
>
> switch(message)
> {
> case WM_CREATE: // Windows creation.
> hDC = GetDC(hwnd); // This gets the
> device context for our window.
> g_HDC = hDC; // Assigns the
> global device context to this
> one.
> SetupPixelFormat(hDC); // Call the pixel
> format function.
>
> hRC = wglCreateContext(hDC); // Creates the
> rendering context.
> wglMakeCurrent(hDC, hRC); // Makes the
> rendering context.
> return 0;
> break;
>
> case WM_CLOSE: // Close message.
> case WM_DESTROY:
> wglMakeCurrent(hDC, NULL);
> wglDeleteContext(hRC); // Deletes the
> rendering context.
>
> PostQuitMessage(0); // Says close the program.
> return 0;
> break;
>
> case WM_SIZE: // re-size message.
> height = HIWORD(lParam); // This gets the
> height of the window.
> width = LOWORD(lParam); // This gets the
> width of the window.
>
> if(height == 0) // we don't want
> it to be possible for a
> { // height of 0. If
> it is 0 me make it 1.
> height = 1;
> }
>
> gHeight = height;
> gWidth = width;
> puSetWindowSize ( width, height ) ;
> glViewport(0, 0, width, height);// resets the
> viewport to new dimensions.
> glMatrixMode(GL_PROJECTION); // Sets the
> projection matrix.
> glLoadIdentity(); // Reset the
> modelview matrix.
>
> // calculate the aspect ratio of the window.
> gluPerspective(45.0f,
> (GLfloat)width/(GLfloat)height, 0.1f, 1000.0f);
>
> glMatrixMode(GL_MODELVIEW);
> glLoadIdentity();
>
> return 0;
> break;
>
> case WM_KEYDOWN:
> switch(wParam)
> {
> case VK_ESCAPE:
> PostQuitMessage(0);
> break;
> }
> break;
>
> case WM_LBUTTONDOWN:
> oldMousePos.x = currentMousePos.x = LOWORD (lParam);
> oldMousePos.y = currentMousePos.y = HIWORD (lParam);
> if( puMouse ( 1, PU_DOWN, currentMousePos.x,
> currentMousePos.y ))
> //{ }//MessageBox(NULL,"DOWN","down",MB_OK); }
> isMouseActive = true;
> break;
>
> case WM_LBUTTONUP:
> currentMousePos.x = LOWORD (lParam);
> currentMousePos.y = HIWORD (lParam);
> if( puMouse ( 1, PU_UP, currentMousePos.x,
> currentMousePos.y ))
> {}// MessageBox(NULL,"UP","UP",MB_OK); }
> isMouseActive = false;
> break;
>
> case WM_MOUSEMOVE:
> currentMousePos.x = LOWORD (lParam);
> currentMousePos.y = HIWORD (lParam);
> if(isMouseActive)
> {
> xRotation -= (currentMousePos.x -
> oldMousePos.x);
> yRotation -= (currentMousePos.y -
> oldMousePos.y);
> }
> oldMousePos.x = currentMousePos.x;
> oldMousePos.y = currentMousePos.y;
> puMouse(currentMousePos.x,currentMousePos.y);
> break;
>
> default: break;
> }
>
> // What this does is pass all of the unhandled messages
> to DefWindowProc
> return (DefWindowProc(hwnd, message, wParam, lParam)); }
>
> int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE
> hPrevInstance, LPSTR lpCmdLine, int nShowCmd) {
> MSG msg; // A
> message variable.
> WNDCLASSEX windowClass; // Your
> Window class.
> HWND hwnd; // The
> Window handle.
> bool isFinished; // True
> then exit.
>
> windowClass.cbSize = sizeof(WNDCLASSEX); // size
> of the WNDCLASSEX
> structure.
> windowClass.style = CS_HREDRAW | CS_VREDRAW; //
> style of the window.
> windowClass.lpfnWndProc = WndProc; //
> Address to the windows
> procedure.
> windowClass.cbClsExtra = 0; //
> Extra class information.
> windowClass.cbWndExtra = 0; //
> Extra window information.
> windowClass.hInstance = hInstance; //
> Handle of application
> Instance.
> windowClass.hIcon = LoadIcon(NULL, IDI_APPLICATION);//
> Handle of application Icon.
> windowClass.hCursor = LoadCursor(NULL, IDC_ARROW);//
> mouse cursor
> windowClass.hbrBackground = NULL; //
> background color.
> windowClass.lpszMenuName = NULL; // name
> of the main menu.
> windowClass.lpszClassName = "puitest";// window class name.
> windowClass.hIconSm = LoadIcon(NULL,
> IDI_APPLICATION);// icon when minimized.
>
> if(!RegisterClassEx(&windowClass)) return 0;
>
> // Create the window.
> hwnd = CreateWindowEx(NULL,// The extended window style.
> "puitest",// window Class name.
> "a problem",// window name.
> WS_OVERLAPPEDWINDOW | WS_VISIBLE |// The window style.
> WS_SYSMENU | WS_CLIPCHILDREN |// window style.
> WS_CLIPSIBLINGS,// window style.
> 100, 100,// window x, y coordinate.
> 640, 480,// window width and height.
> NULL,// handle to parent window.
> NULL,// menu.
> hInstance,// handle to app instance.
> NULL); // pointer to window creation data.
>
> if(!hwnd) return 0;
>
> ShowWindow(hwnd, SW_SHOW);
> UpdateWindow(hwnd);
>
> isFinished = false;
>
> if(!InitializeGL()) isFinished = true;
>
> while(!isFinished)
> {
> if(PeekMessage(&msg, NULL, NULL, NULL, PM_REMOVE))
> {
> if(msg.message == WM_QUIT)
> {
> isFinished = true;
> }
> TranslateMessage(&msg);
> DispatchMessage(&msg);
> }
> else Render();
> }
> return (int)msg.wParam;
> }
>
>
> bool InitializeGL()
> {
> puInit ();
> menu = new puMenuBar(-1);
> menu->add_submenu ( "File", file_submenu, file_submenu_cb ) ;
> menu->close();
> b = new puOneShot ( 0, 0, "say hello") ;
> b -> setCallback ( button_cb ) ;
>
> checkList = new puButtonBox ( 50, 50, 200, 200,
> PUIlabels, 0 ) ;
>
> glClearColor(0.6f, 0.6f, 0.8f, 0.0f); // Clear the
> screen to black.
> glShadeModel(GL_SMOOTH);
> glEnable(GL_DEPTH_TEST);
> return true;
> }
>
>
> void Render()
> {
> glClear(GL_COLOR_BUFFER_BIT | GL_DEPTH_BUFFER_BIT);
> glLoadIdentity();
>
> glTranslatef(0.0f, 0.0f, -5.0f);
> glRotatef(-yRotation, 1.0f, 0.0f, 0.0f);
> glRotatef(-xRotation, 0.0f, 1.0f, 0.0f);
>
> glBegin(GL_TRIANGLES);
> glColor3f(1.0f, 0.0f, 0.0f); glVertex3f(0.0f, 1.0f, 0.0f);
> glColor3f(0.0f, 0.0f, 1.0f); glVertex3f(-1.0f, -1.0f, 0.0f);
> glColor3f(1.0f, 1.0f, 1.0f); glVertex3f(1.0f, -1.0f, 0.0f);
> glEnd();
>
> puDisplay () ;
>
> SwapBuffers(g_HDC);
> }
>
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