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Fix compile errors when using gtk 1.2
[wxWidgets.git] / src / gtk1 / scrolbar.cpp
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c801d85f 1/////////////////////////////////////////////////////////////////////////////
1e6feb95 2// Name: src/gtk/scrolbar.cpp
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3// Purpose:
4// Author: Robert Roebling
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5// Id: $Id$
6// Copyright: (c) 1998 Robert Roebling
65571936 7// Licence: wxWindows licence
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8/////////////////////////////////////////////////////////////////////////////
9
10
14f355c2 11#if defined(__GNUG__) && !defined(NO_GCC_PRAGMA)
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12#pragma implementation "scrolbar.h"
13#endif
14
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15// For compilers that support precompilation, includes "wx.h".
16#include "wx/wxprec.h"
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17
18#if wxUSE_SCROLLBAR
19
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20#include "wx/scrolbar.h"
21
c801d85f 22#include "wx/utils.h"
aed8ac3f 23
f5368809 24#include <math.h>
c801d85f 25
9e691f46 26#include "wx/gtk/private.h"
83624f79 27
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28//-----------------------------------------------------------------------------
29// idle system
30//-----------------------------------------------------------------------------
31
32extern void wxapp_install_idle_handler();
33extern bool g_isIdle;
34
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35//-----------------------------------------------------------------------------
36// data
37//-----------------------------------------------------------------------------
38
39extern bool g_blockEventsOnDrag;
76ed8f8d 40extern bool g_blockEventsOnScroll;
66bd6b93 41
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42static const float sensitivity = 0.02;
43
c801d85f 44//-----------------------------------------------------------------------------
b4071e91 45// "value_changed"
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46//-----------------------------------------------------------------------------
47
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48// FIXME: is GtkScrollType really passed to us as 2nd argument?
49
50static void gtk_scrollbar_callback( GtkAdjustment *adjust,
51 SCROLLBAR_CBACK_ARG
52 wxScrollBar *win )
a2615ebc 53{
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54 if (g_isIdle) wxapp_install_idle_handler();
55
a2053b27 56 if (!win->m_hasVMT) return;
2d17d68f 57 if (g_blockEventsOnDrag) return;
a2615ebc 58
e1811a01 59 float diff = adjust->value - win->m_oldPos;
aed8ac3f 60 if (fabs(diff) < sensitivity) return;
a2615ebc 61
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62 win->m_oldPos = adjust->value;
63
9e691f46 64 wxEventType command = GtkScrollTypeToWx(GET_SCROLL_TYPE(win->m_widget));
e1811a01 65
0a07a7d8 66 double dvalue = adjust->value;
a9f21e71 67 int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5);
a2615ebc 68
f03fc89f 69 int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
a2615ebc 70
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71 wxScrollEvent event( command, win->GetId(), value, orient );
72 event.SetEventObject( win );
73 win->GetEventHandler()->ProcessEvent( event );
a2615ebc 74
c801d85f 75/*
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76 wxCommandEvent cevent( wxEVT_COMMAND_SCROLLBAR_UPDATED, win->GetId() );
77 cevent.SetEventObject( win );
78 win->ProcessEvent( cevent );
c801d85f 79*/
6de97a3b 80}
c801d85f 81
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82//-----------------------------------------------------------------------------
83// "button_press_event" from slider
84//-----------------------------------------------------------------------------
85
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86static gint gtk_scrollbar_button_press_callback( GtkRange *widget,
87 GdkEventButton *gdk_event,
f03fc89f 88 wxScrollBar *win )
cb43b372 89{
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90 if (g_isIdle) wxapp_install_idle_handler();
91
1ecc4d80 92// g_blockEventsOnScroll = TRUE; doesn't work in DialogEd
2a23d363 93
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94 // FIXME: there is no slider field any more, what was meant here?
95#ifndef __WXGTK20__
2a23d363 96 win->m_isScrolling = (gdk_event->window == widget->slider);
9e691f46 97#endif
a2615ebc 98
acfd422a 99 return FALSE;
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100}
101
102//-----------------------------------------------------------------------------
103// "button_release_event" from slider
104//-----------------------------------------------------------------------------
105
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106static gint
107gtk_scrollbar_button_release_callback( GtkRange *WXUNUSED(widget),
108 GdkEventButton *WXUNUSED(gdk_event),
109 wxScrollBar *win )
cb43b372 110{
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111 if (g_isIdle)
112 wxapp_install_idle_handler();
113
1ecc4d80 114// g_blockEventsOnScroll = FALSE;
a2615ebc 115
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116 if (win->m_isScrolling)
117 {
7d56fb8f 118 wxEventType command = wxEVT_SCROLL_THUMBRELEASE;
2a23d363 119 int value = (int)ceil(win->m_adjust->value);
193e19cf 120 int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL;
2a23d363 121
193e19cf 122 wxScrollEvent event( command, win->GetId(), value, orient );
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123 event.SetEventObject( win );
124 win->GetEventHandler()->ProcessEvent( event );
125 }
a2615ebc 126
2a23d363 127 win->m_isScrolling = FALSE;
a2615ebc 128
2d17d68f 129 return FALSE;
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130}
131
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132//-----------------------------------------------------------------------------
133// wxScrollBar
134//-----------------------------------------------------------------------------
135
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136IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl)
137
0a07a7d8 138wxScrollBar::~wxScrollBar()
c801d85f 139{
6de97a3b 140}
c801d85f 141
debe6624 142bool wxScrollBar::Create(wxWindow *parent, wxWindowID id,
c801d85f 143 const wxPoint& pos, const wxSize& size,
6de97a3b 144 long style, const wxValidator& validator, const wxString& name )
c801d85f 145{
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146 m_needParent = TRUE;
147 m_acceptsFocus = TRUE;
a2615ebc 148
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149 if (!PreCreation( parent, pos, size ) ||
150 !CreateBase( parent, id, pos, size, style, validator, name ))
151 {
223d09f6 152 wxFAIL_MSG( wxT("wxScrollBar creation failed") );
0a07a7d8 153 return FALSE;
4dcaf11a 154 }
6de97a3b 155
2d17d68f 156 m_oldPos = 0.0;
c801d85f 157
d9bd1494 158 if ((style & wxSB_VERTICAL) == wxSB_VERTICAL)
2d17d68f 159 m_widget = gtk_vscrollbar_new( (GtkAdjustment *) NULL );
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160 else
161 m_widget = gtk_hscrollbar_new( (GtkAdjustment *) NULL );
162
2d17d68f 163 m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) );
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164
165 gtk_signal_connect( GTK_OBJECT(m_adjust),
2d17d68f 166 "value_changed",
a2615ebc 167 (GtkSignalFunc) gtk_scrollbar_callback,
f03fc89f 168 (gpointer) this );
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169
170 gtk_signal_connect( GTK_OBJECT(m_widget),
2d17d68f 171 "button_press_event",
a2615ebc 172 (GtkSignalFunc)gtk_scrollbar_button_press_callback,
f03fc89f 173 (gpointer) this );
cb43b372 174
a2615ebc 175 gtk_signal_connect( GTK_OBJECT(m_widget),
2d17d68f 176 "button_release_event",
a2615ebc 177 (GtkSignalFunc)gtk_scrollbar_button_release_callback,
f03fc89f 178 (gpointer) this );
cb43b372 179
f03fc89f 180 m_parent->DoAddChild( this );
a2615ebc 181
abdeb9e7 182 PostCreation(size);
a2615ebc 183
2d17d68f 184 return TRUE;
6de97a3b 185}
c801d85f 186
0a07a7d8 187int wxScrollBar::GetThumbPosition() const
c801d85f 188{
0a07a7d8 189 double val = m_adjust->value;
a9f21e71 190 return (int)(val < 0 ? val - 0.5 : val + 0.5);
6de97a3b 191}
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192
193int wxScrollBar::GetThumbSize() const
194{
2d17d68f 195 return (int)(m_adjust->page_size+0.5);
6de97a3b 196}
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197
198int wxScrollBar::GetPageSize() const
199{
2d17d68f 200 return (int)(m_adjust->page_increment+0.5);
6de97a3b 201}
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202
203int wxScrollBar::GetRange() const
204{
2d17d68f 205 return (int)(m_adjust->upper+0.5);
6de97a3b 206}
c801d85f 207
4fabb575 208void wxScrollBar::SetThumbPosition( int viewStart )
c801d85f 209{
2d17d68f 210 if (m_isScrolling) return;
a2615ebc 211
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212 float fpos = (float)viewStart;
213 m_oldPos = fpos;
214 if (fabs(fpos-m_adjust->value) < 0.2) return;
215 m_adjust->value = fpos;
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216
217 gtk_signal_disconnect_by_func( GTK_OBJECT(m_adjust),
218 (GtkSignalFunc) gtk_scrollbar_callback,
2a23d363 219 (gpointer) this );
a2615ebc 220
2d17d68f 221 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" );
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222
223 gtk_signal_connect( GTK_OBJECT(m_adjust),
2a23d363 224 "value_changed",
a2615ebc 225 (GtkSignalFunc) gtk_scrollbar_callback,
2a23d363 226 (gpointer) this );
6de97a3b 227}
c801d85f 228
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229void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize,
230 bool WXUNUSED(refresh) )
c801d85f 231{
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232 float fpos = (float)position;
233 float frange = (float)range;
234 float fthumb = (float)thumbSize;
235 float fpage = (float)pageSize;
a2615ebc 236
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237 if ((fabs(frange-m_adjust->upper) < 0.2) &&
238 (fabs(fthumb-m_adjust->page_size) < 0.2) &&
239 (fabs(fpage-m_adjust->page_increment) < 0.2))
240 {
241 SetThumbPosition( position );
242 return;
243 }
a2615ebc 244
2d17d68f 245 m_oldPos = fpos;
a2615ebc 246
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247 m_adjust->lower = 0.0;
248 m_adjust->upper = frange;
249 m_adjust->value = fpos;
250 m_adjust->step_increment = 1.0;
251 m_adjust->page_increment = (float)(wxMax(fpage,0));
252 m_adjust->page_size = fthumb;
253
254 gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" );
6de97a3b 255}
c801d85f 256
2d17d68f 257/* Backward compatibility */
0a07a7d8 258int wxScrollBar::GetValue() const
c801d85f 259{
2d17d68f 260 return GetThumbPosition();
6de97a3b 261}
c801d85f 262
debe6624 263void wxScrollBar::SetValue( int viewStart )
c801d85f 264{
2d17d68f 265 SetThumbPosition( viewStart );
6de97a3b 266}
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267
268void wxScrollBar::GetValues( int *viewStart, int *viewLength, int *objectLength, int *pageLength ) const
269{
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270 int pos = (int)(m_adjust->value+0.5);
271 int thumb = (int)(m_adjust->page_size+0.5);
272 int page = (int)(m_adjust->page_increment+0.5);
273 int range = (int)(m_adjust->upper+0.5);
a2615ebc 274
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275 *viewStart = pos;
276 *viewLength = range;
277 *objectLength = thumb;
278 *pageLength = page;
6de97a3b 279}
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280
281int wxScrollBar::GetViewLength() const
282{
2d17d68f 283 return (int)(m_adjust->upper+0.5);
6de97a3b 284}
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285
286int wxScrollBar::GetObjectLength() const
287{
2d17d68f 288 return (int)(m_adjust->page_size+0.5);
6de97a3b 289}
c801d85f 290
debe6624 291void wxScrollBar::SetPageSize( int pageLength )
c801d85f 292{
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293 int pos = (int)(m_adjust->value+0.5);
294 int thumb = (int)(m_adjust->page_size+0.5);
295 int range = (int)(m_adjust->upper+0.5);
296 SetScrollbar( pos, thumb, range, pageLength );
6de97a3b 297}
c801d85f 298
debe6624 299void wxScrollBar::SetObjectLength( int objectLength )
c801d85f 300{
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301 int pos = (int)(m_adjust->value+0.5);
302 int page = (int)(m_adjust->page_increment+0.5);
303 int range = (int)(m_adjust->upper+0.5);
304 SetScrollbar( pos, objectLength, range, page );
6de97a3b 305}
c801d85f 306
debe6624 307void wxScrollBar::SetViewLength( int viewLength )
c801d85f 308{
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309 int pos = (int)(m_adjust->value+0.5);
310 int thumb = (int)(m_adjust->page_size+0.5);
311 int page = (int)(m_adjust->page_increment+0.5);
312 SetScrollbar( pos, thumb, viewLength, page );
6de97a3b 313}
c801d85f 314
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315bool wxScrollBar::IsOwnGtkWindow( GdkWindow *window )
316{
2d17d68f 317 GtkRange *range = GTK_RANGE(m_widget);
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318 return ( (window == GTK_WIDGET(range)->window)
319#ifndef __WXGTK20__
320 || (window == range->trough)
321 || (window == range->slider)
322 || (window == range->step_forw)
323 || (window == range->step_back)
324#endif // GTK+ 1.x
325 );
b4071e91 326}
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327
328void wxScrollBar::ApplyWidgetStyle()
329{
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330 SetWidgetStyle();
331 gtk_widget_set_style( m_widget, m_widgetStyle );
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332}
333
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334wxSize wxScrollBar::DoGetBestSize() const
335{
336 return wxControl::DoGetBestSize();
337}
338
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339// static
340wxVisualAttributes
341wxScrollBar::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant))
342{
343 return GetDefaultAttributesFromGTKWidget(gtk_vscrollbar_new);
344}
345
dcf924a3 346#endif