1 /**************************************************************
2 *
3 * Licensed to the Apache Software Foundation (ASF) under one
4 * or more contributor license agreements. See the NOTICE file
5 * distributed with this work for additional information
6 * regarding copyright ownership. The ASF licenses this file
7 * to you under the Apache License, Version 2.0 (the
8 * "License"); you may not use this file except in compliance
9 * with the License. You may obtain a copy of the License at
10 *
11 * http://www.apache.org/licenses/LICENSE-2.0
12 *
13 * Unless required by applicable law or agreed to in writing,
14 * software distributed under the License is distributed on an
15 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
16 * KIND, either express or implied. See the License for the
17 * specific language governing permissions and limitations
18 * under the License.
19 *
20 *************************************************************/
21
22
23
24 // MARKER(update_precomp.py): autogen include statement, do not remove
25 #include "precompiled_sw.hxx"
26
27
28
29 #include "swtypes.hxx"
30 #include "swrect.hxx"
31 #include "scroll.hxx"
32
33 #define SCROLL_LINE_SIZE 250
34
35
SwScrollbar(Window * pWin,sal_Bool bHoriz)36 SwScrollbar::SwScrollbar( Window *pWin, sal_Bool bHoriz ) :
37 ScrollBar( pWin,
38 WinBits( WB_3DLOOK | WB_HIDE | ( bHoriz ? WB_HSCROLL : WB_VSCROLL) ) ),
39 bHori( bHoriz ),
40 bAuto( sal_False ),
41 bThumbEnabled( sal_True ),
42 bVisible(sal_False),
43 bSizeSet(sal_False)
44 {
45 // SSA: --- RTL --- no mirroring for horizontal scrollbars
46 if( bHoriz )
47 EnableRTL( sal_False );
48 }
49
50
~SwScrollbar()51 SwScrollbar::~SwScrollbar() {}
52
53 /*------------------------------------------------------------------------
54 Beschreibung: wird nach einer Aenderung der Dokumentgroesse gerufen, um den
55 Range des Scrollbars neu einzustellen.
56 ------------------------------------------------------------------------*/
57
DocSzChgd(const Size & rSize)58 void SwScrollbar::DocSzChgd( const Size &rSize )
59 {
60 aDocSz = rSize;
61 SetRange( Range( 0, bHori ? rSize.Width() : rSize.Height()) );
62 const sal_uLong nVisSize = GetVisibleSize();
63 SetLineSize( SCROLL_LINE_SIZE );
64 // SetLineSize( nVisSize * 10 / 100 );
65 SetPageSize( nVisSize * 77 / 100 );
66 }
67
68 /*------------------------------------------------------------------------
69 Beschreibung: wird nach einer Veraenderung des sichtbaren Ausschnittes
70 gerufen.
71 ------------------------------------------------------------------------*/
72
73
ViewPortChgd(const Rectangle & rRect)74 void SwScrollbar::ViewPortChgd( const Rectangle &rRect )
75 {
76 long nThumb, nVisible;
77 if( bHori )
78 {
79 nThumb = rRect.Left();
80 nVisible = rRect.GetWidth();
81 }
82 else
83 {
84 nThumb = rRect.Top();
85 nVisible = rRect.GetHeight();
86 }
87
88 SetVisibleSize( nVisible );
89 DocSzChgd(aDocSz);
90 if ( bThumbEnabled )
91 SetThumbPos( nThumb );
92 if(bAuto)
93 AutoShow();
94 }
95
96 /*-----------------10/21/97 02:48pm-----------------
97
98 --------------------------------------------------*/
ExtendedShow(sal_Bool bSet)99 void SwScrollbar::ExtendedShow( sal_Bool bSet )
100 {
101 bVisible = bSet;
102 if( (!bSet || !bAuto) && IsUpdateMode() && bSizeSet)
103 ScrollBar::Show(bSet);
104 }
105
106 /*-----------------10/21/97 03:23pm-----------------
107
108 --------------------------------------------------*/
SetPosSizePixel(const Point & rNewPos,const Size & rNewSize)109 void SwScrollbar::SetPosSizePixel( const Point& rNewPos, const Size& rNewSize )
110 {
111 ScrollBar::SetPosSizePixel(rNewPos, rNewSize);
112 bSizeSet = sal_True;
113 if(bVisible)
114 ExtendedShow();
115
116 }
117
118
119 /*-----------------14.04.98 11:38-------------------
120
121 --------------------------------------------------*/
SetAuto(sal_Bool bSet)122 void SwScrollbar::SetAuto(sal_Bool bSet)
123 {
124 if(bAuto != bSet)
125 {
126 bAuto = bSet;
127
128 // automatisch versteckt - dann anzeigen
129 if(!bAuto && bVisible && !ScrollBar::IsVisible())
130 ExtendedShow(sal_True);
131 else if(bAuto)
132 AutoShow(); // oder automatisch verstecken
133 }
134 }
135 /*-----------------14.04.98 11:43-------------------
136
137 --------------------------------------------------*/
AutoShow()138 void SwScrollbar::AutoShow()
139 {
140 long nVis = GetVisibleSize();
141 long nLen = GetRange().Len();
142 {
143 if( nVis >= nLen - 1)
144 {
145 if(ScrollBar::IsVisible())
146 ScrollBar::Show(sal_False);
147 }
148 else if ( !ScrollBar::IsVisible() &&
149 (!bHori || nVis) ) //Optimierung fuer Browser.
150 //Horizontaler Scrollbar per
151 //default aus.
152 {
153 ScrollBar::Show(sal_True);
154 }
155 }
156 }
157