1 /*************************************************************************
2  *
3  * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
4  *
5  * Copyright 2000, 2010 Oracle and/or its affiliates.
6  *
7  * OpenOffice.org - a multi-platform office productivity suite
8  *
9  * This file is part of OpenOffice.org.
10  *
11  * OpenOffice.org is free software: you can redistribute it and/or modify
12  * it under the terms of the GNU Lesser General Public License version 3
13  * only, as published by the Free Software Foundation.
14  *
15  * OpenOffice.org is distributed in the hope that it will be useful,
16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
18  * GNU Lesser General Public License version 3 for more details
19  * (a copy is included in the LICENSE file that accompanied this code).
20  *
21  * You should have received a copy of the GNU Lesser General Public License
22  * version 3 along with OpenOffice.org.  If not, see
23  * <http://www.openoffice.org/license.html>
24  * for a copy of the LGPLv3 License.
25  *
26  ************************************************************************/
27 
28 #ifndef SDEXT_PRESENTER_HELP_VIEW_HXX
29 #define SDEXT_PRESENTER_HELP_VIEW_HXX
30 
31 #include "PresenterController.hxx"
32 #include <cppuhelper/basemutex.hxx>
33 #include <cppuhelper/compbase3.hxx>
34 #include <com/sun/star/awt/XPaintListener.hpp>
35 #include <com/sun/star/awt/XWindowListener.hpp>
36 #include <com/sun/star/drawing/framework/XView.hpp>
37 #include <com/sun/star/drawing/framework/XResourceId.hpp>
38 #include <com/sun/star/frame/XController.hpp>
39 #include <com/sun/star/rendering/XSpriteCanvas.hpp>
40 
41 namespace css = ::com::sun::star;
42 
43 namespace {
44     typedef cppu::WeakComponentImplHelper3<
45         css::drawing::framework::XView,
46         css::awt::XWindowListener,
47         css::awt::XPaintListener
48         > PresenterHelpViewInterfaceBase;
49 }
50 
51 namespace sdext { namespace presenter {
52 
53 class PresenterButton;
54 
55 /** Show help text that describes the defined keys.
56 */
57 class PresenterHelpView
58     : private ::cppu::BaseMutex,
59       public PresenterHelpViewInterfaceBase
60 {
61 public:
62     explicit PresenterHelpView (
63         const css::uno::Reference<css::uno::XComponentContext>& rxContext,
64         const css::uno::Reference<css::drawing::framework::XResourceId>& rxViewId,
65         const css::uno::Reference<css::frame::XController>& rxController,
66         const ::rtl::Reference<PresenterController>& rpPresenterController);
67     virtual ~PresenterHelpView (void);
68 
69     virtual void SAL_CALL disposing (void);
70 
71     // lang::XEventListener
72 
73     virtual void SAL_CALL
74         disposing (const css::lang::EventObject& rEventObject)
75         throw (css::uno::RuntimeException);
76 
77 
78     // XWindowListener
79 
80     virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent)
81         throw (css::uno::RuntimeException);
82 
83     virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent)
84         throw (css::uno::RuntimeException);
85 
86     virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent)
87         throw (css::uno::RuntimeException);
88 
89     virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent)
90         throw (css::uno::RuntimeException);
91 
92 
93     // XPaintListener
94 
95     virtual void SAL_CALL windowPaint (const css::awt::PaintEvent& rEvent)
96         throw (css::uno::RuntimeException);
97 
98 
99     // XResourceId
100 
101     virtual css::uno::Reference<css::drawing::framework::XResourceId> SAL_CALL getResourceId (void)
102         throw (css::uno::RuntimeException);
103 
104     virtual sal_Bool SAL_CALL isAnchorOnly (void)
105         throw (com::sun::star::uno::RuntimeException);
106 
107 private:
108     class TextContainer;
109 
110     css::uno::Reference<css::uno::XComponentContext> mxComponentContext;
111     css::uno::Reference<css::drawing::framework::XResourceId> mxViewId;
112     css::uno::Reference<css::drawing::framework::XPane> mxPane;
113     css::uno::Reference<css::awt::XWindow> mxWindow;
114     css::uno::Reference<css::rendering::XCanvas> mxCanvas;
115     ::rtl::Reference<PresenterController> mpPresenterController;
116     PresenterTheme::SharedFontDescriptor mpFont;
117     ::boost::scoped_ptr<TextContainer> mpTextContainer;
118     ::rtl::Reference<PresenterButton> mpCloseButton;
119     sal_Int32 mnSeparatorY;
120     sal_Int32 mnMaximalWidth;
121 
122     void ProvideCanvas (void);
123     void Resize (void);
124     void Paint (const css::awt::Rectangle& rRedrawArea);
125     void ReadHelpStrings (void);
126     void ProcessString (
127         const css::uno::Reference<css::beans::XPropertySet>& rsProperties);
128 
129     /** Find a font size, so that all text can be displayed at the same
130         time.
131     */
132     void CheckFontSize (void);
133 
134     /** This method throws a DisposedException when the object has already been
135         disposed.
136     */
137     void ThrowIfDisposed (void)
138         throw (css::lang::DisposedException);
139 };
140 
141 } } // end of namespace ::sdext::presenter
142 
143 #endif
144