C++ (Cpp) gdk_window_move_regionの例

コード例 #1

ファイル: ChromeClientGtk.cpp プロジェクト: mikezit/Webkit_Code

void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect)
{
    GdkWindow* window = GTK_WIDGET(m_webView)->window;
    if (!window)
        return;

    // We cannot use gdk_window_scroll here because it is only able to
    // scroll the whole window at once, and we often need to scroll
    // portions of the window only (think frames).
    GdkRectangle area = clipRect;
    GdkRectangle moveRect;

    GdkRectangle sourceRect = area;
    sourceRect.x -= delta.width();
    sourceRect.y -= delta.height();

    GdkRegion* invalidRegion = gdk_region_rectangle(&area);

    if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
        GdkRegion* moveRegion = gdk_region_rectangle(&moveRect);
        gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
        gdk_region_offset(moveRegion, delta.width(), delta.height());
        gdk_region_subtract(invalidRegion, moveRegion);
        gdk_region_destroy(moveRegion);
    }

    gdk_window_invalidate_region(window, invalidRegion, FALSE);
    gdk_region_destroy(invalidRegion);
}

コード例 #2

void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect)
{
    if (!m_webView)
        return;

    GdkWindow* window = GTK_WIDGET(m_webView)->window;
    if (!window)
        return;

    GdkRectangle area = clipRect;
    GdkRectangle moveRect;

    GdkRectangle sourceRect = area;
    sourceRect.x -= delta.width();
    sourceRect.y -= delta.height();

    GdkRegion* invalidRegion = gdk_region_rectangle(&area);

    if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
        GdkRegion* moveRegion = gdk_region_rectangle(&moveRect);
        gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
        gdk_region_offset(moveRegion, delta.width(), delta.height());
        gdk_region_subtract(invalidRegion, moveRegion);
        gdk_region_destroy(moveRegion);
    }

    gdk_window_invalidate_region(window, invalidRegion, FALSE);
    gdk_region_destroy(invalidRegion);
}

コード例 #3

ファイル: ChromeClientGtk.cpp プロジェクト: 0omega/platform_external_webkit

void ChromeClient::scroll(const IntSize& delta, const IntRect& rectToScroll, const IntRect& clipRect)
{
    GdkWindow* window = gtk_widget_get_window(GTK_WIDGET(m_webView));
    if (!window)
        return;

    m_pendingScrollInvalidations = true;

    // We cannot use gdk_window_scroll here because it is only able to
    // scroll the whole window at once, and we often need to scroll
    // portions of the window only (think frames).
    GdkRectangle area = clipRect;
    GdkRectangle moveRect;

    GdkRectangle sourceRect = area;
    sourceRect.x -= delta.width();
    sourceRect.y -= delta.height();

#ifdef GTK_API_VERSION_2
    GdkRegion* invalidRegion = gdk_region_rectangle(&area);

    if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
        GdkRegion* moveRegion = gdk_region_rectangle(&moveRect);
        gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
        gdk_region_offset(moveRegion, delta.width(), delta.height());
        gdk_region_subtract(invalidRegion, moveRegion);
        gdk_region_destroy(moveRegion);
    }

    gdk_window_invalidate_region(window, invalidRegion, FALSE);
    gdk_region_destroy(invalidRegion);
#else
    cairo_region_t* invalidRegion = cairo_region_create_rectangle(&area);

    if (gdk_rectangle_intersect(&area, &sourceRect, &moveRect)) {
        cairo_region_t* moveRegion = cairo_region_create_rectangle(&moveRect);
        gdk_window_move_region(window, moveRegion, delta.width(), delta.height());
        cairo_region_translate(moveRegion, delta.width(), delta.height());
        cairo_region_subtract(invalidRegion, moveRegion);
        cairo_region_destroy(moveRegion);
    }

    gdk_window_invalidate_region(window, invalidRegion, FALSE);
    cairo_region_destroy(invalidRegion);
#endif
}

コード例 #4

ファイル: rbgdkwindow.c プロジェクト: geoffyoungs/ruby-gnome2

static VALUE
gdkwin_move_region(VALUE self, VALUE region, VALUE dx, VALUE dy)
{
    gdk_window_move_region(_SELF(self),
                           (GdkRegion*)RVAL2BOXED(region, GDK_TYPE_REGION),
                           NUM2INT(dx),
                           NUM2INT(dy));
    return self;
}

コード例 #5

ファイル: rbgdkwindow.c プロジェクト: masaakiaoyagi/ruby-gnome2

static VALUE
rg_move_region(VALUE self, VALUE region, VALUE dx, VALUE dy)
{
    gdk_window_move_region(_SELF(self),
                           RVAL2CRREGION(region),
                           NUM2INT(dx),
                           NUM2INT(dy));
    return self;
}