xref: /trunk/main/sw/source/ui/uiview/scroll.cxx (revision efeef26f)
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16  * KIND, either express or implied.  See the License for the
17  * specific language governing permissions and limitations
18  * under the License.
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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