1 files changed, 124 insertions, 0 deletions
diff --git a/vcl/inc/unx/gtk/gtkobject.hxx b/vcl/inc/unx/gtk/gtkobject.hxx
new file mode 100644
index 000000000..b43f09e0b
--- /dev/null
+++ b/vcl/inc/unx/gtk/gtkobject.hxx
@@ -0,0 +1,124 @@
+/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
+/*
+ * This file is part of the LibreOffice project.
+ *
+ * This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at http://mozilla.org/MPL/2.0/.
+ *
+ * This file incorporates work covered by the following license notice:
+ *
+ *   Licensed to the Apache Software Foundation (ASF) under one or more
+ *   contributor license agreements. See the NOTICE file distributed
+ *   with this work for additional information regarding copyright
+ *   ownership. The ASF licenses this file to you under the Apache
+ *   License, Version 2.0 (the "License"); you may not use this file
+ *   except in compliance with the License. You may obtain a copy of
+ *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
+ */
+
+#ifndef INCLUDED_VCL_INC_UNX_GTK_GTKOBJECT_HXX
+#define INCLUDED_VCL_INC_UNX_GTK_GTKOBJECT_HXX
+
+#include <tools/solar.h>
+#include <vcl/sysdata.hxx>
+#include <salobj.hxx>
+#include <unx/gtk/gtkframe.hxx>
+
+class GtkSalObjectBase : public SalObject
+{
+protected:
+    SystemEnvData       m_aSystemData;
+    GtkWidget*          m_pSocket;
+    GtkSalFrame*        m_pParent;
+    cairo_region_t*     m_pRegion;
+
+    void Init();
+
+public:
+    GtkSalObjectBase(GtkSalFrame* pParent);
+    virtual ~GtkSalObjectBase() override;
+
+    virtual void                    BeginSetClipRegion( sal_uInt32 nRects ) override;
+    virtual void                    UnionClipRegion( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
+
+    virtual void                    SetForwardKey( bool bEnable ) override;
+
+    virtual const SystemEnvData*    GetSystemData() const override;
+
+    virtual Size                    GetOptimalSize() const override;
+
+private:
+    // signals
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    static gboolean     signalButton( GtkWidget*, GdkEventButton*, gpointer );
+    static gboolean     signalFocus( GtkWidget*, GdkEventFocus*, gpointer );
+#endif
+};
+
+// this attempts to clip the hosted native window using gdk_window_shape_combine_region
+class GtkSalObject final : public GtkSalObjectBase
+{
+    // signals
+    static void         signalDestroy( GtkWidget*, gpointer );
+
+public:
+    GtkSalObject(GtkSalFrame* pParent, bool bShow);
+    virtual ~GtkSalObject() override;
+
+    // override all pure virtual methods
+    virtual void                    ResetClipRegion() override;
+    virtual void                    EndSetClipRegion() override;
+
+    virtual void                    SetPosSize( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
+    virtual void                    Show( bool bVisible ) override;
+    virtual void                    Reparent(SalFrame* pFrame) override;
+};
+
+// this attempts to clip the hosted native GtkWidget by using a GtkScrolledWindow as a viewport
+// only a rectangular area is going to work
+class GtkSalObjectWidgetClip final : public GtkSalObjectBase
+{
+    tools::Rectangle m_aRect;
+    tools::Rectangle m_aClipRect;
+    GtkWidget* m_pScrolledWindow;
+    GtkWidget* m_pViewPort;
+    GtkCssProvider* m_pBgCssProvider;
+
+    // signals
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    static gboolean     signalScroll(GtkWidget*, GdkEvent*, gpointer);
+#else
+    static gboolean     signalScroll(GtkEventControllerScroll* pController, double delta_x, double delta_y, gpointer object);
+#endif
+    static void         signalDestroy( GtkWidget*, gpointer );
+
+#if !GTK_CHECK_VERSION(4, 0, 0)
+    bool signal_scroll(GtkWidget* pScrolledWindow, GdkEvent* pEvent);
+#else
+    bool signal_scroll(GtkEventControllerScroll* pController, double delta_x, double delta_y);
+#endif
+
+    void ApplyClipRegion();
+
+    void SetViewPortBackground();
+
+    DECL_LINK(SettingsChangedHdl, VclWindowEvent&, void);
+
+public:
+    GtkSalObjectWidgetClip(GtkSalFrame* pParent, bool bShow);
+    virtual ~GtkSalObjectWidgetClip() override;
+
+    // override all pure virtual methods
+    virtual void                    ResetClipRegion() override;
+    virtual void                    EndSetClipRegion() override;
+
+    virtual void                    SetPosSize( tools::Long nX, tools::Long nY, tools::Long nWidth, tools::Long nHeight ) override;
+    virtual void                    Show( bool bVisible ) override;
+    virtual void                    Reparent(SalFrame* pFrame) override;
+};
+
+
+#endif // INCLUDED_VCL_INC_UNX_GTK_GTKOBJECT_HXX
+
+/* vim:set shiftwidth=4 softtabstop=4 expandtab: */