agg_platform_support.cpp

windows ce 下的画各种b样条曲线

            if(app->m_ctrls.on_mouse_button_up(app->m_specific->m_cur_x, 
                                               app->m_specific->m_cur_y))
            {
                app->on_ctrl_change();
                app->force_redraw();
            }
            app->on_mouse_button_up(app->m_specific->m_cur_x, 
                                    app->m_specific->m_cur_y, 
                                    app->m_specific->m_input_flags);
/*
            if(!app->wait_mode())
            {
                app->on_idle();
            }
*/
            break;


        //--------------------------------------------------------------------
        case WM_RBUTTONDOWN:
            ::SetCapture(app->m_specific->m_hwnd);
            app->m_specific->m_cur_x = int16(LOWORD(lParam));
            if(app->flip_y())
            {
                app->m_specific->m_cur_y = app->rbuf_window().height() - int16(HIWORD(lParam));
            }
            else
            {
                app->m_specific->m_cur_y = int16(HIWORD(lParam));
            }
            app->m_specific->m_input_flags = mouse_right | get_key_flags(wParam);
            app->on_mouse_button_down(app->m_specific->m_cur_x, 
                                      app->m_specific->m_cur_y, 
                                      app->m_specific->m_input_flags);
/*
            if(!app->wait_mode())
            {
                app->on_idle();
            }
*/
            break;

        //--------------------------------------------------------------------
        case WM_RBUTTONUP:
            ::ReleaseCapture();
            app->m_specific->m_cur_x = int16(LOWORD(lParam));
            if(app->flip_y())
            {
                app->m_specific->m_cur_y = app->rbuf_window().height() - int16(HIWORD(lParam));
            }
            else
            {
                app->m_specific->m_cur_y = int16(HIWORD(lParam));
            }
            app->m_specific->m_input_flags = mouse_right | get_key_flags(wParam);
            app->on_mouse_button_up(app->m_specific->m_cur_x, 
                                    app->m_specific->m_cur_y, 
                                    app->m_specific->m_input_flags);
/*
            if(!app->wait_mode())
            {
                app->on_idle();
            }
*/
            break;

        //--------------------------------------------------------------------
        case WM_MOUSEMOVE:
            app->m_specific->m_cur_x = int16(LOWORD(lParam));
            if(app->flip_y())
            {
                app->m_specific->m_cur_y = app->rbuf_window().height() - int16(HIWORD(lParam));
            }
            else
            {
                app->m_specific->m_cur_y = int16(HIWORD(lParam));
            }
            app->m_specific->m_input_flags = get_key_flags(wParam);


            if(app->m_ctrls.on_mouse_move(
                app->m_specific->m_cur_x, 
                app->m_specific->m_cur_y,
                (app->m_specific->m_input_flags & mouse_left) != 0))
            {
                app->on_ctrl_change();
                app->force_redraw();
            }
            else
            {
                if(!app->m_ctrls.in_rect(app->m_specific->m_cur_x, 
                                         app->m_specific->m_cur_y))
                {
                    app->on_mouse_move(app->m_specific->m_cur_x, 
                                       app->m_specific->m_cur_y, 
                                       app->m_specific->m_input_flags);
                }
            }
/*
            if(!app->wait_mode())
            {
                app->on_idle();
            }
*/
            break;

        //--------------------------------------------------------------------
        case WM_SYSKEYDOWN:
        case WM_KEYDOWN:
            app->m_specific->m_last_translated_key = 0;
            switch(wParam) 
            {
                case VK_CONTROL:
                    app->m_specific->m_input_flags |= kbd_ctrl;
                    break;

                case VK_SHIFT:
                    app->m_specific->m_input_flags |= kbd_shift;
                    break;

                default:
                    app->m_specific->translate(wParam);
                    break;
            }
        
            if(app->m_specific->m_last_translated_key)
            {
                bool left  = false;
                bool up    = false;
                bool right = false;
                bool down  = false;

                switch(app->m_specific->m_last_translated_key)
                {
                case key_left:
                    left = true;
                    break;

                case key_up:
                    up = true;
                    break;

                case key_right:
                    right = true;
                    break;

                case key_down:
                    down = true;
                    break;

                case key_f2:                        
                    app->copy_window_to_img(agg::platform_support::max_images - 1);
                    app->save_img(agg::platform_support::max_images - 1, "screenshot");
                    break;
                }

                if(app->window_flags() & window_process_all_keys)
                {
                    app->on_key(app->m_specific->m_cur_x,
                                app->m_specific->m_cur_y,
                                app->m_specific->m_last_translated_key,
                                app->m_specific->m_input_flags);
                }
                else
                {
                    if(app->m_ctrls.on_arrow_keys(left, right, down, up))
                    {
                        app->on_ctrl_change();
                        app->force_redraw();
                    }
                    else
                    {
                        app->on_key(app->m_specific->m_cur_x,
                                    app->m_specific->m_cur_y,
                                    app->m_specific->m_last_translated_key,
                                    app->m_specific->m_input_flags);
                    }
                }
            }
/*
            if(!app->wait_mode())
            {
                app->on_idle();
            }
*/
            break;

        //--------------------------------------------------------------------
        case WM_SYSKEYUP:
        case WM_KEYUP:
            app->m_specific->m_last_translated_key = 0;
            switch(wParam) 
            {
                case VK_CONTROL:
                    app->m_specific->m_input_flags &= ~kbd_ctrl;
                    break;

                case VK_SHIFT:
                    app->m_specific->m_input_flags &= ~kbd_shift;
                    break;
            }
            break;

        //--------------------------------------------------------------------
        case WM_CHAR:
        case WM_SYSCHAR:
            if(app->m_specific->m_last_translated_key == 0)
            {
                app->on_key(app->m_specific->m_cur_x,
                            app->m_specific->m_cur_y,
                            wParam,
                            app->m_specific->m_input_flags);
            }
            break;
        
        //--------------------------------------------------------------------
        case WM_PAINT:
            paintDC = ::BeginPaint(hWnd, &ps);
            app->m_specific->m_current_dc = paintDC;
            if(app->m_specific->m_redraw_flag)
            {
                app->on_draw();
                app->m_specific->m_redraw_flag = false;
            }
            app->m_specific->display_pmap(paintDC, &app->rbuf_window());
            app->on_post_draw(paintDC);
            app->m_specific->m_current_dc = 0;
            ::EndPaint(hWnd, &ps);
            break;
        
        //--------------------------------------------------------------------
        case WM_COMMAND:
            break;
        
        //--------------------------------------------------------------------
        case WM_DESTROY:
            ::PostQuitMessage(0);
            break;
        
        //--------------------------------------------------------------------
        default:
            ret = ::DefWindowProc(hWnd, msg, wParam, lParam);
            break;
        }
        app->m_specific->m_current_dc = 0;
        ::ReleaseDC(app->m_specific->m_hwnd, dc);
        return ret;
    }


    //------------------------------------------------------------------------
    void platform_support::message(const char* msg)
    {
        //yzx ::MessageBox(m_specific->m_hwnd, msg, L"AGG Message", MB_OK);
		::MessageBox(m_specific->m_hwnd,L"bspline", L"AGG Message", MB_OK);
    }


    //------------------------------------------------------------------------
    bool platform_support::init(unsigned width, unsigned height, unsigned flags)
    {
        if(m_specific->m_sys_format == pix_format_undefined)
        {
            return false;
        }

        m_window_flags = flags;

        int wflags =  CS_VREDRAW | CS_HREDRAW;//CS_OWNDC

        WNDCLASS wc;
        wc.lpszClassName = L"AGGAppClass";
        wc.lpfnWndProc = window_proc;
        wc.style = wflags;
        wc.hInstance = g_windows_instance;
        wc.hIcon = NULL;
        wc.hCursor = LoadCursor(0, IDC_ARROW);
        wc.hbrBackground = (HBRUSH)(COLOR_WINDOW+1);
        wc.lpszMenuName = (LPTSTR)NULL;
        wc.cbClsExtra = 0;
        wc.cbWndExtra = 0;
        ::RegisterClass(&wc);
		DWORD dwError = GetLastError();

        wflags = WS_OVERLAPPED | WS_CAPTION | WS_SYSMENU | WS_MINIMIZEBOX;

        if(m_window_flags & window_resize)
        {
            wflags |= WS_THICKFRAME | WS_MAXIMIZEBOX;
        }

        m_specific->m_hwnd = ::CreateWindow(L"AGGAppClass",
                                            L"bspline_test",
                                            wflags,
                                            100,
                                            100,
                                            width,
                                            height,
                                            0,
                                            0,
                                            g_windows_instance,
                                            0);

        if(m_specific->m_hwnd == 0)
        {
            return false;
        }


        RECT rct;
        ::GetClientRect(m_specific->m_hwnd, &rct);

        ::MoveWindow(m_specific->m_hwnd,   // handle to window
                     100,                  // horizontal position
                     100,                  // vertical position
                     width + (width - (rct.right - rct.left)),
                     height + (height - (rct.bottom - rct.top)),
                     FALSE);
   
        ::SetWindowLong(m_specific->m_hwnd, GWL_USERDATA, (LONG)this);
        m_specific->create_pmap(width, height, &m_rbuf_window);
        m_initial_width = width;
        m_initial_height = height;
        on_init();
        m_specific->m_redraw_flag = true;
        ::ShowWindow(m_specific->m_hwnd, g_windows_cmd_show);
        return true;
    }



    //------------------------------------------------------------------------
    int platform_support::run()
    {
        MSG msg;

        for(;;)
        {
            if(m_wait_mode)
            {
                if(!::GetMessage(&msg, 0, 0, 0))
                {
                    break;
                }
                ::TranslateMessage(&msg);
                ::DispatchMessage(&msg);
            }
            else
            {
                if(::PeekMessage(&msg, 0, 0, 0, PM_REMOVE))
                {
                    ::TranslateMessage(&msg);
                    if(msg.message == WM_QUIT)
                    {
                        break;
                    }
                    ::DispatchMessage(&msg);
                }
                else
                {
                    on_idle();
                }
            }
        }
        return (int)msg.wParam;
    }


    //------------------------------------------------------------------------
    const char* platform_support::img_ext() const { return ".bmp"; }