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19 
20 #ifndef INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERHELPVIEW_HXX
21 #define INCLUDED_SDEXT_SOURCE_PRESENTER_PRESENTERHELPVIEW_HXX
22 
23 #include "PresenterController.hxx"
24 #include <cppuhelper/basemutex.hxx>
25 #include <cppuhelper/compbase.hxx>
26 #include <com/sun/star/awt/XPaintListener.hpp>
27 #include <com/sun/star/awt/XWindowListener.hpp>
28 #include <com/sun/star/drawing/framework/XView.hpp>
29 #include <com/sun/star/drawing/framework/XResourceId.hpp>
30 #include <com/sun/star/frame/XController.hpp>
31 #include <memory>
32 
33 namespace sdext::presenter {
34 
35 class PresenterButton;
36 
37 typedef cppu::WeakComponentImplHelper<
38     css::drawing::framework::XView,
39     css::awt::XWindowListener,
40     css::awt::XPaintListener
41     > PresenterHelpViewInterfaceBase;
42 
43 /** Show help text that describes the defined keys.
44 */
45 class PresenterHelpView
46     : private ::cppu::BaseMutex,
47       public PresenterHelpViewInterfaceBase
48 {
49 public:
50     explicit PresenterHelpView (
51         const css::uno::Reference<css::uno::XComponentContext>& rxContext,
52         const css::uno::Reference<css::drawing::framework::XResourceId>& rxViewId,
53         const css::uno::Reference<css::frame::XController>& rxController,
54         const ::rtl::Reference<PresenterController>& rpPresenterController);
55     virtual ~PresenterHelpView() override;
56 
57     virtual void SAL_CALL disposing() override;
58 
59     // lang::XEventListener
60 
61     virtual void SAL_CALL
62         disposing (const css::lang::EventObject& rEventObject) override;
63 
64     // XWindowListener
65 
66     virtual void SAL_CALL windowResized (const css::awt::WindowEvent& rEvent) override;
67 
68     virtual void SAL_CALL windowMoved (const css::awt::WindowEvent& rEvent) override;
69 
70     virtual void SAL_CALL windowShown (const css::lang::EventObject& rEvent) override;
71 
72     virtual void SAL_CALL windowHidden (const css::lang::EventObject& rEvent) override;
73 
74     // XPaintListener
75 
76     virtual void SAL_CALL windowPaint (const css::awt::PaintEvent& rEvent) override;
77 
78     // XResourceId
79 
80     virtual css::uno::Reference<css::drawing::framework::XResourceId> SAL_CALL getResourceId() override;
81 
82     virtual sal_Bool SAL_CALL isAnchorOnly() override;
83 
84 private:
85     class TextContainer;
86 
87     css::uno::Reference<css::uno::XComponentContext> mxComponentContext;
88     css::uno::Reference<css::drawing::framework::XResourceId> mxViewId;
89     css::uno::Reference<css::drawing::framework::XPane> mxPane;
90     css::uno::Reference<css::awt::XWindow> mxWindow;
91     css::uno::Reference<css::rendering::XCanvas> mxCanvas;
92     ::rtl::Reference<PresenterController> mpPresenterController;
93     PresenterTheme::SharedFontDescriptor mpFont;
94     std::unique_ptr<TextContainer> mpTextContainer;
95     ::rtl::Reference<PresenterButton> mpCloseButton;
96     sal_Int32 mnSeparatorY;
97     sal_Int32 mnMaximalWidth;
98 
99     void ProvideCanvas();
100     void Resize();
101     void Paint (const css::awt::Rectangle& rRedrawArea);
102     void ReadHelpStrings();
103     void ProcessString (
104         const css::uno::Reference<css::beans::XPropertySet>& rsProperties);
105 
106     /** Find a font size, so that all text can be displayed at the same
107         time.
108     */
109     void CheckFontSize();
110 
111     /** @throws css::lang::DisposedException when the object has already been
112         disposed.
113     */
114     void ThrowIfDisposed();
115 };
116 
117 } // end of namespace ::sdext::presenter
118 
119 #endif
120 
121 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
122