C:/Users/thebigMuh/Documents/Visual Studio 2005/Projects/Volumizer/Volumizer/SplitterWnd.cpp

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#include "Volumizer.h"

extern HWND wnd_main, wnd_3d, wnd_front, wnd_left, wnd_top;

ATOM RegisterSplitterClass(HINSTANCE hInstance)
{
        WNDCLASSEX wcex;

        wcex.cbSize = sizeof(WNDCLASSEX);

        wcex.style                      = CS_HREDRAW | CS_VREDRAW;
        wcex.lpfnWndProc        = SplitterProc;
        wcex.cbClsExtra         = 0;
        wcex.cbWndExtra         = 0;
        wcex.hInstance          = hInstance;
        wcex.hIcon                      = NULL;
        wcex.hCursor            = LoadCursor(NULL, IDC_SIZEWE);
        wcex.hbrBackground      = (HBRUSH)(COLOR_3DFACE+1);
        wcex.lpszMenuName       = NULL;
        wcex.lpszClassName      = L"SplitterWnd";
        wcex.hIconSm            = NULL;

        return RegisterClassEx(&wcex);
}

LRESULT CALLBACK SplitterProc(HWND hWnd, UINT message, WPARAM wParam, LPARAM lParam)
{
        PAINTSTRUCT ps;
        HDC hdc;
        POINT mpos;

        switch (message)
        {
        case WM_LBUTTONDOWN:
                //grab the bar
                SetCapture(hWnd);
                break;
        case WM_LBUTTONUP:
                ReleaseCapture();
                break;
        case WM_MOUSEMOVE:
                // take care of shoving the client windows around
                if (GetCapture() == hWnd)
                {
                        GetCursorPos(&mpos);
                        RECT rect;
                        GetClientRect(wnd_main, &rect);

                        ScreenToClient(wnd_main, &mpos);

                        if (mpos.x < 20)
                                mpos.x = 20;

                        if (mpos.x > rect.right - 20)
                                mpos.x = rect.right - 20;

                        SetWindowPos(hWnd, NULL, mpos.x, TOOL_HEIGHT, 0, 0, SWP_NOSIZE);
                        SetWindowPos(wnd_3d, NULL, mpos.x + SPLITTER_WIDTH, TOOL_HEIGHT, rect.right - (mpos.x + SPLITTER_WIDTH), rect.bottom - TOOL_HEIGHT - HISTOGRAM_HEIGHT, NULL);

                        SetWindowPos(wnd_histogram, NULL, mpos.x + SPLITTER_WIDTH, rect.bottom - HISTOGRAM_HEIGHT, rect.right - (mpos.x + SPLITTER_WIDTH), HISTOGRAM_HEIGHT, NULL);

                        SetWindowPos(wnd_front, NULL, 0, TOOL_HEIGHT, mpos.x, (rect.bottom - TOOL_HEIGHT)/3, NULL);
                        SetWindowPos(wnd_left, NULL, 0, (rect.bottom - TOOL_HEIGHT)/3 + TOOL_HEIGHT, mpos.x, (rect.bottom - TOOL_HEIGHT)/3, NULL);
                        SetWindowPos(wnd_top, NULL, 0, (rect.bottom - TOOL_HEIGHT)*2/3 + TOOL_HEIGHT, mpos.x, (rect.bottom - TOOL_HEIGHT)/3, NULL);

                        UpdateWindow(hWnd);
                        UpdateWindow(wnd_3d);

                        UpdateWindow(wnd_front);
                        UpdateWindow(wnd_left);
                        UpdateWindow(wnd_top);
                }
                break;
        case WM_SIZE:
                // resize all client windows
                RECT rect;
                GetClientRect(wnd_main, &rect);

                RECT splitterrect;
                GetWindowRect(hWnd, &splitterrect);
                POINT splitterpos;
                splitterpos.x = splitterrect.left;

                ScreenToClient(wnd_main, &splitterpos);

                SetWindowPos(hWnd, NULL, 0, 0, SPLITTER_WIDTH, rect.bottom - TOOL_HEIGHT, SWP_NOMOVE);
                SetWindowPos(wnd_3d, NULL, splitterpos.x + SPLITTER_WIDTH, TOOL_HEIGHT, rect.right - (splitterpos.x + SPLITTER_WIDTH), rect.bottom - TOOL_HEIGHT - HISTOGRAM_HEIGHT, NULL);

                SetWindowPos(wnd_histogram, NULL, splitterpos.x + SPLITTER_WIDTH, rect.bottom - HISTOGRAM_HEIGHT, rect.right - (splitterpos.x + SPLITTER_WIDTH), HISTOGRAM_HEIGHT, NULL);

                SetWindowPos(wnd_front, NULL, 0, TOOL_HEIGHT, splitterpos.x, (rect.bottom - TOOL_HEIGHT)/3, SWP_NOMOVE);
                SetWindowPos(wnd_left, NULL, 0, (rect.bottom - TOOL_HEIGHT)/3 + TOOL_HEIGHT, splitterpos.x, (rect.bottom - TOOL_HEIGHT)/3, NULL);
                SetWindowPos(wnd_top, NULL, 0, (rect.bottom - TOOL_HEIGHT)*2/3 + TOOL_HEIGHT, splitterpos.x, (rect.bottom - TOOL_HEIGHT)/3, NULL);
                break;
        case WM_PAINT:
                hdc = BeginPaint(hWnd, &ps);
                // TODO: Add any drawing code here...
                EndPaint(hWnd, &ps);
                break;
        case WM_DESTROY:
                PostQuitMessage(0);
                break;
        default:
                return DefWindowProc(hWnd, message, wParam, lParam);
        }
        return 0;
}

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