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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 SVX_DIALCONTROL_HXX
21 : #define 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 String& 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, const ResId& rResId );
84 : explicit DialControl( Window* pParent, WinBits nBits );
85 :
86 : virtual ~DialControl();
87 :
88 : virtual void Paint( const Rectangle& rRect );
89 :
90 : virtual void StateChanged( StateChangedType nStateChange );
91 : virtual void DataChanged( const DataChangedEvent& rDCEvt );
92 :
93 : virtual void MouseButtonDown( const MouseEvent& rMEvt );
94 : virtual void MouseMove( const MouseEvent& rMEvt );
95 : virtual void MouseButtonUp( const MouseEvent& rMEvt );
96 : virtual void KeyInput( const KeyEvent& rKEvt );
97 : virtual void LoseFocus();
98 :
99 : virtual Size GetOptimalSize() const;
100 : virtual void Resize();
101 :
102 : /** Returns true, if the control is not in "don't care" state. */
103 : bool HasRotation() const;
104 : /** Sets the control to "don't care" state. */
105 : void SetNoRotation();
106 :
107 : /** Returns the current rotation angle in 1/100 degrees. */
108 : sal_Int32 GetRotation() const;
109 : /** Sets the rotation to the passed value (in 1/100 degrees). */
110 : void SetRotation( sal_Int32 nAngle );
111 :
112 : /** Links the passed numeric edit field to the control (bi-directional).
113 : * nDecimalPlaces:
114 : * field value is usign given decimal places
115 : * default is 0 which means field values are in degrees,
116 : * 2 means 100th of degree
117 : */
118 : void SetLinkedField( NumericField* pField, sal_Int32 nDecimalPlaces = 0);
119 : /** Returns the linked numeric edit field, or 0. */
120 : NumericField* GetLinkedField() const;
121 :
122 : /** The passed handler is called whenever the totation value changes. */
123 : void SetModifyHdl( const Link& rLink );
124 : /** Returns the current modify handler. */
125 : const Link& GetModifyHdl() const;
126 :
127 : /** Save value for later comparison */
128 : void SaveValue();
129 :
130 : /** Compare value with the saved value */
131 : bool IsValueModified();
132 :
133 : protected:
134 0 : struct DialControl_Impl
135 : {
136 : ::boost::scoped_ptr<DialControlBmp> mpBmpEnabled;
137 : ::boost::scoped_ptr<DialControlBmp> mpBmpDisabled;
138 : ::boost::scoped_ptr<DialControlBmp> mpBmpBuffered;
139 : Link maModifyHdl;
140 : NumericField* mpLinkField;
141 : sal_Int32 mnLinkedFieldValueMultiplyer;
142 : Size maWinSize;
143 : Font maWinFont;
144 : sal_Int32 mnAngle;
145 : sal_Int32 mnInitialAngle;
146 : sal_Int32 mnOldAngle;
147 : long mnCenterX;
148 : long mnCenterY;
149 : bool mbNoRot;
150 :
151 : explicit DialControl_Impl( Window& rParent );
152 : void Init( const Size& rWinSize, const Font& rWinFont );
153 : void SetSize( const Size& rWinSize );
154 : };
155 : std::auto_ptr< DialControl_Impl > mpImpl;
156 :
157 : virtual void HandleMouseEvent( const Point& rPos, bool bInitial );
158 : virtual void HandleEscapeEvent();
159 :
160 : void SetRotation( sal_Int32 nAngle, bool bBroadcast );
161 :
162 : void Init( const Size& rWinSize, const Font& rWinFont );
163 : void Init( const Size& rWinSize );
164 :
165 : private:
166 : void InvalidateControl();
167 :
168 : void ImplSetFieldLink( const Link& rLink );
169 :
170 :
171 : DECL_LINK( LinkedFieldModifyHdl, NumericField* );
172 : };
173 :
174 : // ============================================================================
175 :
176 : /** Wrapper for usage of a DialControl in item connections. */
177 0 : class SVX_DLLPUBLIC DialControlWrapper : public sfx::SingleControlWrapper< DialControl, sal_Int32 >
178 : {
179 : public:
180 : explicit DialControlWrapper( DialControl& rDial );
181 :
182 : virtual bool IsControlDontKnow() const;
183 : virtual void SetControlDontKnow( bool bSet );
184 :
185 : virtual sal_Int32 GetControlValue() const;
186 : virtual void SetControlValue( sal_Int32 nValue );
187 : };
188 :
189 : // ----------------------------------------------------------------------------
190 :
191 : /** An item<->control connection for a DialControl. */
192 : typedef sfx::ItemControlConnection< sfx::Int32ItemWrapper, DialControlWrapper > DialControlConnection;
193 :
194 : // ============================================================================
195 :
196 : } // namespace svx
197 :
198 : #endif
199 :
200 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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