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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 : class NumericField;
29 :
30 : namespace svx {
31 :
32 :
33 :
34 6 : class SAL_WARN_UNUSED DialControlBmp : public VirtualDevice
35 : {
36 : public:
37 : explicit DialControlBmp( vcl::Window& rParent );
38 :
39 : void InitBitmap(const vcl::Font& rFont);
40 : void SetSize(const Size& rSize);
41 : void CopyBackground( const DialControlBmp& rSrc );
42 : void DrawBackground( const Size& rSize, bool bEnabled );
43 : void DrawBackground();
44 : void DrawElements( const OUString& rText, sal_Int32 nAngle );
45 :
46 : protected:
47 : Rectangle maRect;
48 : bool mbEnabled;
49 :
50 : private:
51 : const Color& GetBackgroundColor() const;
52 : const Color& GetTextColor() const;
53 : const Color& GetScaleLineColor() const;
54 : const Color& GetButtonLineColor() const;
55 : const Color& GetButtonFillColor( bool bMain ) const;
56 :
57 : void Init();
58 :
59 : vcl::Window& mrParent;
60 : long mnCenterX;
61 : long mnCenterY;
62 : };
63 :
64 : /** This control allows to input a rotation angle, visualized by a dial.
65 :
66 : Usage: A single click sets a rotation angle rounded to steps of 15 degrees.
67 : Dragging with the left mouse button sets an exact rotation angle. Pressing
68 : the ESCAPE key during mouse drag cancels the operation and restores the old
69 : state of the control.
70 :
71 : It is possible to link a numeric field to this control using the function
72 : SetLinkedField(). The DialControl will take full control of this numeric
73 : field:
74 : - Sets the rotation angle to the numeric field in mouse operations.
75 : - Shows the value entered/modified in the numeric field.
76 : - Enables/disables/shows/hides the field according to own state changes.
77 : */
78 1 : class SVX_DLLPUBLIC SAL_WARN_UNUSED DialControl : public Control
79 : {
80 : public:
81 : explicit DialControl( vcl::Window* pParent, WinBits nBits );
82 :
83 : virtual void Paint(vcl::RenderContext& rRenderContext, const Rectangle& rRect) SAL_OVERRIDE;
84 :
85 : virtual void StateChanged( StateChangedType nStateChange ) SAL_OVERRIDE;
86 : virtual void DataChanged( const DataChangedEvent& rDCEvt ) SAL_OVERRIDE;
87 :
88 : virtual void MouseButtonDown( const MouseEvent& rMEvt ) SAL_OVERRIDE;
89 : virtual void MouseMove( const MouseEvent& rMEvt ) SAL_OVERRIDE;
90 : virtual void MouseButtonUp( const MouseEvent& rMEvt ) SAL_OVERRIDE;
91 : virtual void KeyInput( const KeyEvent& rKEvt ) SAL_OVERRIDE;
92 : virtual void LoseFocus() SAL_OVERRIDE;
93 :
94 : virtual Size GetOptimalSize() const SAL_OVERRIDE;
95 : virtual void Resize() SAL_OVERRIDE;
96 :
97 : /** Returns true, if the control is not in "don't care" state. */
98 : bool HasRotation() const;
99 : /** Sets the control to "don't care" state. */
100 : void SetNoRotation();
101 :
102 : /** Returns the current rotation angle in 1/100 degrees. */
103 : sal_Int32 GetRotation() const;
104 : /** Sets the rotation to the passed value (in 1/100 degrees). */
105 : void SetRotation( sal_Int32 nAngle );
106 :
107 : /** Links the passed numeric edit field to the control (bi-directional).
108 : * nDecimalPlaces:
109 : * field value is usign given decimal places
110 : * default is 0 which means field values are in degrees,
111 : * 2 means 100th of degree
112 : */
113 : void SetLinkedField( NumericField* pField, sal_Int32 nDecimalPlaces = 0);
114 :
115 : /** The passed handler is called whenever the totation value changes. */
116 : void SetModifyHdl( const Link<>& rLink );
117 :
118 : /** Save value for later comparison */
119 : void SaveValue();
120 :
121 : /** Compare value with the saved value */
122 : bool IsValueModified();
123 :
124 : protected:
125 1 : struct DialControl_Impl
126 : {
127 : ScopedVclPtr<DialControlBmp> mxBmpEnabled;
128 : ScopedVclPtr<DialControlBmp> mxBmpDisabled;
129 : ScopedVclPtr<DialControlBmp> mxBmpBuffered;
130 : Link<> maModifyHdl;
131 : VclPtr<NumericField> mpLinkField;
132 : sal_Int32 mnLinkedFieldValueMultiplyer;
133 : Size maWinSize;
134 : vcl::Font maWinFont;
135 : sal_Int32 mnAngle;
136 : sal_Int32 mnInitialAngle;
137 : sal_Int32 mnOldAngle;
138 : long mnCenterX;
139 : long mnCenterY;
140 : bool mbNoRot;
141 :
142 : explicit DialControl_Impl( vcl::Window& rParent );
143 : void Init( const Size& rWinSize, const vcl::Font& rWinFont );
144 : void SetSize( const Size& rWinSize );
145 : };
146 : std::unique_ptr< DialControl_Impl > mpImpl;
147 :
148 : virtual void HandleMouseEvent( const Point& rPos, bool bInitial );
149 : void HandleEscapeEvent();
150 :
151 : void SetRotation( sal_Int32 nAngle, bool bBroadcast );
152 :
153 : void Init( const Size& rWinSize, const vcl::Font& rWinFont );
154 : void Init( const Size& rWinSize );
155 :
156 : private:
157 : void InvalidateControl();
158 :
159 : void ImplSetFieldLink( const Link<>& rLink );
160 :
161 :
162 : DECL_LINK( LinkedFieldModifyHdl, NumericField* );
163 : };
164 :
165 : /** Wrapper for usage of a DialControl in item connections. */
166 0 : class SVX_DLLPUBLIC SAL_WARN_UNUSED DialControlWrapper : public sfx::SingleControlWrapper< DialControl, sal_Int32 >
167 : {
168 : public:
169 : explicit DialControlWrapper( DialControl& rDial );
170 :
171 : virtual bool IsControlDontKnow() const SAL_OVERRIDE;
172 : virtual void SetControlDontKnow( bool bSet ) SAL_OVERRIDE;
173 :
174 : virtual sal_Int32 GetControlValue() const SAL_OVERRIDE;
175 : virtual void SetControlValue( sal_Int32 nValue ) SAL_OVERRIDE;
176 : };
177 :
178 : /** An item<->control connection for a DialControl. */
179 : typedef sfx::ItemControlConnection< sfx::Int32ItemWrapper, DialControlWrapper > DialControlConnection;
180 :
181 : }
182 :
183 : #endif
184 :
185 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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