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1 : /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
2 : /*
3 : * This file is part of the LibreOffice project.
4 : *
5 : * This Source Code Form is subject to the terms of the Mozilla Public
6 : * License, v. 2.0. If a copy of the MPL was not distributed with this
7 : * file, You can obtain one at http://mozilla.org/MPL/2.0/.
8 : *
9 : * This file incorporates work covered by the following license notice:
10 : *
11 : * Licensed to the Apache Software Foundation (ASF) under one or more
12 : * contributor license agreements. See the NOTICE file distributed
13 : * with this work for additional information regarding copyright
14 : * ownership. The ASF licenses this file to you under the Apache
15 : * License, Version 2.0 (the "License"); you may not use this file
16 : * except in compliance with the License. You may obtain a copy of
17 : * the License at http://www.apache.org/licenses/LICENSE-2.0 .
18 : */
19 :
20 : #ifndef INCLUDED_SVX_DIALCONTROL_HXX
21 : #define INCLUDED_SVX_DIALCONTROL_HXX
22 :
23 : #include <memory>
24 : #include <vcl/ctrl.hxx>
25 : #include <sfx2/itemconnect.hxx>
26 : #include <svx/svxdllapi.h>
27 :
28 : #include <boost/scoped_ptr.hpp>
29 :
30 : class NumericField;
31 :
32 : namespace svx {
33 :
34 :
35 :
36 0 : class DialControlBmp : public VirtualDevice
37 : {
38 : public:
39 : explicit DialControlBmp( Window& rParent );
40 :
41 : void InitBitmap(const Font& rFont);
42 : void SetSize(const Size& rSize);
43 : void CopyBackground( const DialControlBmp& rSrc );
44 : void DrawBackground( const Size& rSize, bool bEnabled );
45 : virtual void DrawBackground();
46 : virtual void DrawElements( const OUString& rText, sal_Int32 nAngle );
47 :
48 : protected:
49 : Rectangle maRect;
50 : bool mbEnabled;
51 :
52 : private:
53 : const Color& GetBackgroundColor() const;
54 : const Color& GetTextColor() const;
55 : const Color& GetScaleLineColor() const;
56 : const Color& GetButtonLineColor() const;
57 : const Color& GetButtonFillColor( bool bMain ) const;
58 :
59 : void Init();
60 :
61 : Window& mrParent;
62 : long mnCenterX;
63 : long mnCenterY;
64 : };
65 :
66 : /** This control allows to input a rotation angle, visualized by a dial.
67 :
68 : Usage: A single click sets a rotation angle rounded to steps of 15 degrees.
69 : Dragging with the left mouse button sets an exact rotation angle. Pressing
70 : the ESCAPE key during mouse drag cancels the operation and restores the old
71 : state of the control.
72 :
73 : It is possible to link a numeric field to this control using the function
74 : SetLinkedField(). The DialControl will take full control of this numeric
75 : field:
76 : - Sets the rotation angle to the numeric field in mouse operations.
77 : - Shows the value entered/modified in the numeric field.
78 : - Enables/disables/shows/hides the field according to own state changes.
79 : */
80 : class SVX_DLLPUBLIC DialControl : public Control
81 : {
82 : public:
83 : explicit DialControl( Window* pParent, WinBits nBits );
84 :
85 : virtual ~DialControl();
86 :
87 : virtual void Paint( const Rectangle& rRect ) SAL_OVERRIDE;
88 :
89 : virtual void StateChanged( StateChangedType nStateChange ) SAL_OVERRIDE;
90 : virtual void DataChanged( const DataChangedEvent& rDCEvt ) SAL_OVERRIDE;
91 :
92 : virtual void MouseButtonDown( const MouseEvent& rMEvt ) SAL_OVERRIDE;
93 : virtual void MouseMove( const MouseEvent& rMEvt ) SAL_OVERRIDE;
94 : virtual void MouseButtonUp( const MouseEvent& rMEvt ) SAL_OVERRIDE;
95 : virtual void KeyInput( const KeyEvent& rKEvt ) SAL_OVERRIDE;
96 : virtual void LoseFocus() SAL_OVERRIDE;
97 :
98 : virtual Size GetOptimalSize() const SAL_OVERRIDE;
99 : virtual void Resize() SAL_OVERRIDE;
100 :
101 : /** Returns true, if the control is not in "don't care" state. */
102 : bool HasRotation() const;
103 : /** Sets the control to "don't care" state. */
104 : void SetNoRotation();
105 :
106 : /** Returns the current rotation angle in 1/100 degrees. */
107 : sal_Int32 GetRotation() const;
108 : /** Sets the rotation to the passed value (in 1/100 degrees). */
109 : void SetRotation( sal_Int32 nAngle );
110 :
111 : /** Links the passed numeric edit field to the control (bi-directional).
112 : * nDecimalPlaces:
113 : * field value is usign given decimal places
114 : * default is 0 which means field values are in degrees,
115 : * 2 means 100th of degree
116 : */
117 : void SetLinkedField( NumericField* pField, sal_Int32 nDecimalPlaces = 0);
118 :
119 : /** The passed handler is called whenever the totation value changes. */
120 : void SetModifyHdl( const Link& rLink );
121 :
122 : /** Save value for later comparison */
123 : void SaveValue();
124 :
125 : /** Compare value with the saved value */
126 : bool IsValueModified();
127 :
128 : protected:
129 0 : struct DialControl_Impl
130 : {
131 : ::boost::scoped_ptr<DialControlBmp> mpBmpEnabled;
132 : ::boost::scoped_ptr<DialControlBmp> mpBmpDisabled;
133 : ::boost::scoped_ptr<DialControlBmp> mpBmpBuffered;
134 : Link maModifyHdl;
135 : NumericField* mpLinkField;
136 : sal_Int32 mnLinkedFieldValueMultiplyer;
137 : Size maWinSize;
138 : Font maWinFont;
139 : sal_Int32 mnAngle;
140 : sal_Int32 mnInitialAngle;
141 : sal_Int32 mnOldAngle;
142 : long mnCenterX;
143 : long mnCenterY;
144 : bool mbNoRot;
145 :
146 : explicit DialControl_Impl( Window& rParent );
147 : void Init( const Size& rWinSize, const Font& rWinFont );
148 : void SetSize( const Size& rWinSize );
149 : };
150 : std::auto_ptr< DialControl_Impl > mpImpl;
151 :
152 : virtual void HandleMouseEvent( const Point& rPos, bool bInitial );
153 : virtual void HandleEscapeEvent();
154 :
155 : void SetRotation( sal_Int32 nAngle, bool bBroadcast );
156 :
157 : void Init( const Size& rWinSize, const Font& rWinFont );
158 : void Init( const Size& rWinSize );
159 :
160 : private:
161 : void InvalidateControl();
162 :
163 : void ImplSetFieldLink( const Link& rLink );
164 :
165 :
166 : DECL_LINK( LinkedFieldModifyHdl, NumericField* );
167 : };
168 :
169 :
170 :
171 : /** Wrapper for usage of a DialControl in item connections. */
172 0 : class SVX_DLLPUBLIC DialControlWrapper : public sfx::SingleControlWrapper< DialControl, sal_Int32 >
173 : {
174 : public:
175 : explicit DialControlWrapper( DialControl& rDial );
176 :
177 : virtual bool IsControlDontKnow() const SAL_OVERRIDE;
178 : virtual void SetControlDontKnow( bool bSet ) SAL_OVERRIDE;
179 :
180 : virtual sal_Int32 GetControlValue() const SAL_OVERRIDE;
181 : virtual void SetControlValue( sal_Int32 nValue ) SAL_OVERRIDE;
182 : };
183 :
184 :
185 :
186 : /** An item<->control connection for a DialControl. */
187 : typedef sfx::ItemControlConnection< sfx::Int32ItemWrapper, DialControlWrapper > DialControlConnection;
188 :
189 :
190 :
191 : } // namespace svx
192 :
193 : #endif
194 :
195 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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