No.004 - 01  ドッキング・ツールバー の 構造

#include <windows.h>
#include <commctrl.h>

TBBUTTON tool_bar_buttons[] = {
    { STD_FILENEW, 1, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { STD_FILEOPEN, 2, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { STD_FILESAVE, 3, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { 0, 0, TBSTATE_ENABLED, TBSTYLE_SEP, 0, 0, 0 },
    { STD_COPY, 4, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { STD_CUT, 5, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { STD_DELETE, 6, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { 0, 0, TBSTATE_ENABLED, TBSTYLE_SEP, 0, 0, 0 },
    { VIEW_NEWFOLDER, 7, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 },
    { VIEW_PARENTFOLDER, 8, TBSTATE_ENABLED, TBSTYLE_BUTTON, 0, 0, 0 }
};

// タイトルバーのアクティブ化フラグ変数（メッセージの多重送信を防ぐ）
int g_now_nc_activing=0;

// ビューウィンドウ・プロシージャ
LRESULT CALLBACK ChildViewProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp) {
    HDC hdc;
    PAINTSTRUCT ps;
    char str[]="ChildViewウィンドウ(座標0,0)";

    switch (msg) {
    case WM_LBUTTONDOWN:
        SendMessage(GetParent(hwnd), WM_LBUTTONDOWN, wp, lp);   // ツーバーのリサイズ
        break;
    case WM_PAINT:
        hdc = BeginPaint(hwnd , &ps);
        TextOut(hdc, 0, 0, str, lstrlen(str));
        EndPaint(hwnd , &ps);
        break;
    }
    return DefWindowProc(hwnd, msg, wp, lp);
}
// ポップアップウィンドウ・プロシージャ
LRESULT CALLBACK PopupProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp) {
    switch (msg) {
    case WM_NCACTIVATE: // タイトルバーのアクティブ化・非アクティブ化
        if (g_now_nc_activing) break;
        g_now_nc_activing=1;
        SendMessage(GetWindow(hwnd, GW_OWNER), WM_NCACTIVATE, wp, 0);
        g_now_nc_activing=0;
        break;
    }
    return DefWindowProc(hwnd, msg, wp, lp);
}

// メインウィンドウ・プロシージャ
LRESULT CALLBACK WndProc(HWND hwnd, UINT msg, WPARAM wp, LPARAM lp) {
    static HWND htool, popup_frame, hview;
    static int floating_flag=0;
    RECT rc, tool_rect;

    switch (msg) {
    case WM_CREATE:
        InitCommonControls();
        htool = CreateToolbarEx(
            hwnd, WS_CHILD | WS_VISIBLE, 0, 6, (HINSTANCE)HINST_COMMCTRL,
            IDB_STD_SMALL_COLOR, tool_bar_buttons, 7, 0, 0, 0, 0, sizeof (TBBUTTON)
        );
        popup_frame= CreateWindowEx(
            WS_EX_TOOLWINDOW, TEXT("popup_frame"), NULL, WS_OVERLAPPEDWINDOW | WS_POPUP | WS_VISIBLE,
            300, 170, 160, 50, hwnd, NULL, ((LPCREATESTRUCT)(lp))->hInstance, NULL
        );
        hview= CreateWindowEx(
            WS_EX_TOOLWINDOW, TEXT("child_view"), NULL, WS_CHILD | WS_VISIBLE,
            0, 0, 0, 0, hwnd, NULL, ((LPCREATESTRUCT)(lp))->hInstance, NULL
        );
        break;
    case WM_DESTROY:
        PostQuitMessage(0);
        break;
    case WM_NCACTIVATE: // タイトルバーのアクティブ化・非アクティブ化
        if (g_now_nc_activing) break;
        g_now_nc_activing=1;
        SendMessage(popup_frame, WM_NCACTIVATE, wp, 0); 
        g_now_nc_activing=0;
        break;
    case WM_SIZE:
        // サイズ変更
        if (!floating_flag) SendMessage(htool, WM_SIZE, wp, lp);    
        GetClientRect(hwnd, &rc);
        GetWindowRect(htool, &tool_rect);
        if (!floating_flag) rc.top =tool_rect.bottom-tool_rect.top;
        SetWindowPos(hview, NULL, rc.left, rc.top, rc.right, rc.bottom-rc.top, 0);
        break;
    case WM_LBUTTONDOWN:
        // マウスでドッキング・フローティング切り替え
        if (floating_flag)  SetParent(htool, hwnd);
        else                SetParent(htool, popup_frame);
        floating_flag = !floating_flag;
        GetClientRect(hwnd, &rc);
        GetWindowRect(htool, &tool_rect);
        if (!floating_flag) rc.top =tool_rect.bottom-tool_rect.top;
        SetWindowPos(hview, NULL, rc.left, rc.top, rc.right, rc.bottom-rc.top, 0);
        break;
    }
    return DefWindowProc(hwnd, msg, wp, lp);
}

int WINAPI WinMain(HINSTANCE hInstance, HINSTANCE hPrevInstance, PSTR lpCmdLine, int nCmdShow ) {
    HWND hwnd;
    MSG msg;
    WNDCLASS winc;

    winc.style              = CS_HREDRAW | CS_VREDRAW;
    winc.lpfnWndProc        = WndProc;
    winc.cbClsExtra = winc.cbWndExtra       = 0;
    winc.hInstance          = hInstance;
    winc.hIcon              = LoadIcon(NULL, IDI_APPLICATION);
    winc.hCursor            = LoadCursor(NULL, IDC_ARROW);
    winc.hbrBackground      = (HBRUSH)GetStockObject(WHITE_BRUSH);
    winc.lpszMenuName       = NULL;
    winc.lpszClassName      = TEXT("main_frame");

    if (!RegisterClass(&winc)) return -1;   // メイン・ウィンドウ

    winc.hbrBackground      = (HBRUSH)GetStockObject(WHITE_BRUSH);
    winc.lpfnWndProc        = ChildViewProc;
    winc.lpszClassName      = TEXT("child_view");
    if (!RegisterClass(&winc)) return -1;   // ビューウィンドウ

    winc.hbrBackground      = (HBRUSH)(COLOR_BTNFACE+1);
    winc.lpfnWndProc        = PopupProc;
    winc.lpszClassName      = TEXT("popup_frame");
    if (!RegisterClass(&winc)) return -1;   // フローティング・フレーム・ウィンドウ

    hwnd = CreateWindow(
        TEXT("main_frame"), TEXT("ドッキング・ツールバーのテスト1"), WS_OVERLAPPEDWINDOW | WS_VISIBLE,
        100, 100, 240, 180, NULL, NULL, hInstance, NULL
    );
    if (hwnd == NULL) return -1;

    while(GetMessage(&msg, NULL, 0, 0)) {
        TranslateMessage(&msg);
        DispatchMessage(&msg);
    }
    return msg.wParam;
}