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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_SD_SOURCE_UI_INC_WINDOW_HXX
21 : #define INCLUDED_SD_SOURCE_UI_INC_WINDOW_HXX
22 :
23 : #include <tools/gen.hxx>
24 : #include <vcl/window.hxx>
25 : #include <svtools/transfer.hxx>
26 :
27 : namespace sd {
28 :
29 : class ViewShell;
30 :
31 : /** An SdWindow contains the actual working area of ViewShell.
32 :
33 : <p>The zoom factor used by this class controls how much the page and the
34 : shapes on it are scaled down (<100%) or up (>100%) when displayed on the
35 : output device represented by the <type>OutputDevice</type>base class. A
36 : zoom factor of 100% would result (with a correctly set DPI value for an
37 : output device) in a one to one mapping of the internal coordinates that
38 : are stored in 100th of mm. The zoom factor is stored in the map mode
39 : member of the <type>OutputDevice</type> base class. It is calculated to
40 : be an integer percent value.
41 : */
42 : class Window
43 : : public vcl::Window,
44 : public ::DropTargetHelper
45 : {
46 : public:
47 : Window (vcl::Window* pParent);
48 : virtual ~Window ();
49 : virtual void dispose() SAL_OVERRIDE;
50 :
51 : void SetViewShell (ViewShell* pViewSh);
52 :
53 : /** Set the zoom factor to the specified value and center the display
54 : area around the zoom center.
55 : @param nZoom
56 : The zoom factor is given as integral percent value.
57 : */
58 : void SetZoomIntegral(long nZoom);
59 :
60 : /** This internally used method performs the actual adaption of the
61 : window's map mode to the specified zoom factor.
62 : @param nZoom
63 : The zoom factor is given as integral percent value.
64 : @return
65 : When the given zoom factor lies outside the valid range enclosed
66 : by the minimal zoom factor previously calculated by
67 : <member>CalcMinZoom</member> and a constant upper value it is
68 : forced into that interval. Therefore the returned value is a
69 : valid zoom factor.
70 : */
71 : long SetZoomFactor(long nZoom);
72 :
73 : /** This method is called when the whole page shall be displayed in the
74 : window. Position and zoom factor are set so that the given
75 : rectangle is displayed as large as possible in the window while at
76 : the same time maintaining the rectangle's aspect ratio and adding a
77 : small space at all its four sides (about 3% of width and height).
78 : The map mode is adapted accordingly.
79 : @param rZoomRect
80 : The rectangle is expected to be given relative to the upper left
81 : corner of the window in logical coordinates (100th of mm).
82 : @return
83 : The new zoom factor is returned as integral percent value.
84 : */
85 : long SetZoomRect (const Rectangle& rZoomRect);
86 :
87 : long GetZoomForRect( const Rectangle& rZoomRect );
88 :
89 : void SetMinZoomAutoCalc (bool bAuto);
90 : void SetCalcMinZoomByMinSide (bool bMin);
91 :
92 : /** Calculate the minimal zoom factor as the value at which the
93 : application area would completely fill the window. All values set
94 : manually or programatically are set to this value if they are
95 : smaller. If the currently used zoom factor is smaller than the minimal zoom
96 : factor than set the minimal zoom factor as the new current zoom
97 : factor.
98 :
99 : <p>This calculation is performed only when the
100 : <member>bMinZoomAutoCalc</member> is set (to <TRUE/>).</p>
101 : */
102 : void CalcMinZoom();
103 : void SetMinZoom (long int nMin);
104 124 : long GetMinZoom() const { return mnMinZoom;}
105 : void SetMaxZoom (long int nMax);
106 124 : long GetMaxZoom() const { return mnMaxZoom;}
107 :
108 : long GetZoom() const;
109 :
110 860 : Point GetWinViewPos() const { return maWinPos;}
111 50 : Point GetViewOrigin() const { return maViewOrigin;}
112 50 : Size GetViewSize() const { return maViewSize;}
113 : void SetWinViewPos(const Point& rPnt);
114 : void SetViewOrigin(const Point& rPnt);
115 : void SetViewSize(const Size& rSize);
116 : void SetCenterAllowed (bool bIsAllowed);
117 :
118 : /** Calculate origin of the map mode according to the size of the view
119 : and window (its size in model coordinates; that takes the zoom
120 : factor into account), and the bCenterAllowed flag. When it is not
121 : set then nothing is changed. When in any direction the window is
122 : larger than the view or the value of aWinPos in this direction is -1
123 : then the window is centered in this direction.
124 : */
125 : void UpdateMapOrigin (bool bInvalidate = true);
126 :
127 : void UpdateMapMode();
128 :
129 : double GetVisibleX(); // Interface fuer ScrollBars
130 : double GetVisibleY();
131 : void SetVisibleXY(double fX, double fY);
132 : double GetVisibleWidth();
133 : double GetVisibleHeight();
134 : double GetScrlLineWidth();
135 : double GetScrlLineHeight();
136 : double GetScrlPageWidth();
137 : double GetScrlPageHeight();
138 : void GrabFocus();
139 : virtual void DataChanged( const DataChangedEvent& rDCEvt ) SAL_OVERRIDE;
140 :
141 : // DropTargetHelper
142 : virtual sal_Int8 AcceptDrop( const AcceptDropEvent& rEvt ) SAL_OVERRIDE;
143 : virtual sal_Int8 ExecuteDrop( const ExecuteDropEvent& rEvt ) SAL_OVERRIDE;
144 :
145 : /** The DropScroll() method is used by AcceptDrop() to scroll the
146 : content of the window while dragging and dropping. With this method
147 : you can control whether DropScroll() shall be used.
148 : */
149 : void SetUseDropScroll (bool bUseDropScroll);
150 : void DropScroll (const Point& rMousePos);
151 : virtual void KeyInput(const KeyEvent& rKEvt) SAL_OVERRIDE;
152 : protected:
153 : VclPtr< ::sd::Window> mpShareWin;
154 : Point maWinPos;
155 : Point maViewOrigin;
156 : Size maViewSize;
157 : Size maPrevSize; // contains previous window size in logical coords
158 : sal_uInt16 mnMinZoom;
159 : sal_uInt16 mnMaxZoom;
160 :
161 : /** This flag tells whether to re-calculate the minimal zoom factor
162 : depening on the current zoom factor. Its default value is now false.
163 : */
164 : bool mbMinZoomAutoCalc;
165 : bool mbCalcMinZoomByMinSide;
166 : bool mbCenterAllowed;
167 : long mnTicks;
168 : bool mbDraggedFrom;
169 :
170 : ViewShell* mpViewShell;
171 : bool mbUseDropScroll;
172 :
173 : virtual void Resize() SAL_OVERRIDE;
174 : virtual void PrePaint(vcl::RenderContext& rRenderContext) SAL_OVERRIDE;
175 : virtual void Paint(vcl::RenderContext& rRenderContext, const Rectangle& rRect) SAL_OVERRIDE;
176 : virtual void MouseMove(const MouseEvent& rMEvt) SAL_OVERRIDE;
177 : virtual void MouseButtonUp(const MouseEvent& rMEvt) SAL_OVERRIDE;
178 : virtual void MouseButtonDown(const MouseEvent& rMEvt) SAL_OVERRIDE;
179 : virtual void Command(const CommandEvent& rCEvt) SAL_OVERRIDE;
180 : virtual void RequestHelp( const HelpEvent& rEvt ) SAL_OVERRIDE;
181 : virtual void LoseFocus() SAL_OVERRIDE;
182 : virtual bool Notify( NotifyEvent& rNEvt ) SAL_OVERRIDE;
183 :
184 : /** Create an accessibility object that makes this window accessible.
185 :
186 : @return
187 : The returned reference is empty if an accessible object could
188 : not be created.
189 : */
190 : virtual ::com::sun::star::uno::Reference<
191 : ::com::sun::star::accessibility::XAccessible>
192 : CreateAccessible() SAL_OVERRIDE;
193 :
194 : OUString GetSurroundingText() const SAL_OVERRIDE;
195 : Selection GetSurroundingTextSelection() const SAL_OVERRIDE;
196 : /// @see OutputDevice::LogicInvalidate().
197 : void LogicInvalidate(const Rectangle* pRectangle) SAL_OVERRIDE;
198 : };
199 :
200 : } // end of namespace sd
201 :
202 : #endif
203 :
204 : /* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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