X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/debe6624c1e9d4bf3243381153d1e173c849bcd8..f7b06c8ce1bf0c34e4c5bde45181205101a5661e:/src/gtk/scrolbar.cpp diff --git a/src/gtk/scrolbar.cpp b/src/gtk/scrolbar.cpp index bcfece5c27..13983bb771 100644 --- a/src/gtk/scrolbar.cpp +++ b/src/gtk/scrolbar.cpp @@ -1,216 +1,226 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: scrolbar.cpp +// Name: src/gtk/scrolbar.cpp // Purpose: // Author: Robert Roebling -// Created: 01/02/97 -// Id: -// Copyright: (c) 1998 Robert Roebling, Julian Smart and Markus Holzem -// Licence: wxWindows licence +// Id: $Id$ +// Copyright: (c) 1998 Robert Roebling +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" -#ifdef __GNUG__ -#pragma implementation "scrolbar.h" -#endif +#if wxUSE_SCROLLBAR #include "wx/scrolbar.h" -#include "wx/utils.h" + +#ifndef WX_PRECOMP + #include "wx/utils.h" +#endif + +#include "wx/gtk/private.h" //----------------------------------------------------------------------------- -// wxScrollBar +// "value_changed" from scrollbar //----------------------------------------------------------------------------- -void gtk_scrollbar_callback( GtkWidget *WXUNUSED(widget), wxScrollBar *win ) -{ -/* - printf( "OnScroll from " ); - if (win->GetClassInfo() && win->GetClassInfo()->GetClassName()) - printf( win->GetClassInfo()->GetClassName() ); - printf( ".\n" ); -*/ - - if (!win->HasVMT()) return; - - float diff = win->m_adjust->value - win->m_oldPos; - if (fabs(diff) < 0.2) return; - - wxEventType command = wxEVT_NULL; - - float line_step = win->m_adjust->step_increment; - float page_step = win->m_adjust->page_increment; - - if (fabs(diff-line_step) < 0.2) command = wxEVT_SCROLL_LINEDOWN; - else if (fabs(diff+line_step) < 0.2) command = wxEVT_SCROLL_LINEUP; - else if (fabs(diff-page_step) < 0.2) command = wxEVT_SCROLL_PAGEDOWN; - else if (fabs(diff+page_step) < 0.2) command = wxEVT_SCROLL_PAGEUP; - else command = wxEVT_SCROLL_THUMBTRACK; - - int value = (int)(win->m_adjust->value+0.5); - - int orient = wxHORIZONTAL; - if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxHORIZONTAL; - - wxScrollEvent event( command, win->GetId(), value, orient ); - event.SetEventObject( win ); - win->ProcessEvent( event ); - -/* - wxCommandEvent cevent( wxEVT_COMMAND_SCROLLBAR_UPDATED, win->GetId() ); - cevent.SetEventObject( win ); - win->ProcessEvent( cevent ); -*/ -}; +extern "C" { +static void +gtk_value_changed(GtkRange* range, wxScrollBar* win) +{ + wxEventType eventType = win->GetScrollEventType(range); + if (eventType != wxEVT_NULL) + { + const int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL; + const int value = win->GetThumbPosition(); + wxScrollEvent event(eventType, win->GetId(), value, orient); + event.SetEventObject(win); + win->GetEventHandler()->ProcessEvent(event); + if (!win->m_isScrolling) + { + wxScrollEvent event(wxEVT_SCROLL_CHANGED, win->GetId(), value, orient); + event.SetEventObject(win); + win->GetEventHandler()->ProcessEvent(event); + } + } +} +} + +//----------------------------------------------------------------------------- +// "button_press_event" from scrollbar +//----------------------------------------------------------------------------- + +extern "C" { +static gboolean +gtk_button_press_event(GtkRange*, GdkEventButton*, wxScrollBar* win) +{ + if (g_isIdle) wxapp_install_idle_handler(); + + win->m_mouseButtonDown = true; + return false; +} +} + +//----------------------------------------------------------------------------- +// "button_release_event" from scrollbar +//----------------------------------------------------------------------------- + +extern "C" { +static gboolean +gtk_button_release_event(GtkRange*, GdkEventButton*, wxScrollBar* win) +{ + if (g_isIdle) + wxapp_install_idle_handler(); + + win->m_mouseButtonDown = false; + // If thumb tracking + if (win->m_isScrolling) + { + win->m_isScrolling = false; + const int value = win->GetThumbPosition(); + const int orient = win->HasFlag(wxSB_VERTICAL) ? wxVERTICAL : wxHORIZONTAL; + + wxScrollEvent event(wxEVT_SCROLL_THUMBRELEASE, win->GetId(), value, orient); + event.SetEventObject(win); + win->GetEventHandler()->ProcessEvent(event); + + wxScrollEvent event2(wxEVT_SCROLL_CHANGED, win->GetId(), value, orient); + event2.SetEventObject(win); + win->GetEventHandler()->ProcessEvent(event2); + } + + return false; +} +} + +//----------------------------------------------------------------------------- +// wxScrollBar +//----------------------------------------------------------------------------- IMPLEMENT_DYNAMIC_CLASS(wxScrollBar,wxControl) -wxScrollBar::wxScrollBar(wxWindow *parent, wxWindowID id, - const wxPoint& pos, const wxSize& size, - long style, const wxString& name ) +wxScrollBar::wxScrollBar() { - Create( parent, id, pos, size, style, name ); -}; +} -wxScrollBar::~wxScrollBar(void) +wxScrollBar::~wxScrollBar() { -}; +} bool wxScrollBar::Create(wxWindow *parent, wxWindowID id, const wxPoint& pos, const wxSize& size, - long style, const wxString& name ) -{ - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - m_oldPos = 0.0; - - if (style & wxSB_VERTICAL == wxSB_VERTICAL) - m_widget = gtk_hscrollbar_new( NULL ); - else - m_widget = gtk_vscrollbar_new( NULL ); - - m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) ); - - gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed", - (GtkSignalFunc) gtk_scrollbar_callback, (gpointer) this ); - - PostCreation(); - - Show( TRUE ); - - return TRUE; -}; - -int wxScrollBar::GetPosition(void) const -{ - return (int)(m_adjust->value+0.5); -}; + long style, const wxValidator& validator, const wxString& name ) +{ + m_needParent = true; + m_acceptsFocus = true; + + if (!PreCreation( parent, pos, size ) || + !CreateBase( parent, id, pos, size, style, validator, name )) + { + wxFAIL_MSG( wxT("wxScrollBar creation failed") ); + return false; + } + + const bool isVertical = (style & wxSB_VERTICAL) != 0; + if (isVertical) + m_widget = gtk_vscrollbar_new( (GtkAdjustment *) NULL ); + else + m_widget = gtk_hscrollbar_new( (GtkAdjustment *) NULL ); + + m_scrollBar[int(isVertical)] = (GtkRange*)m_widget; + + g_signal_connect(m_widget, "value_changed", + G_CALLBACK(gtk_value_changed), this); + g_signal_connect(m_widget, "button_press_event", + G_CALLBACK(gtk_button_press_event), this); + g_signal_connect(m_widget, "button_release_event", + G_CALLBACK(gtk_button_release_event), this); + + m_parent->DoAddChild( this ); + + PostCreation(size); + + return true; +} + +int wxScrollBar::GetThumbPosition() const +{ + GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment; + return int(adj->value + 0.5); +} int wxScrollBar::GetThumbSize() const { - return (int)(m_adjust->page_size+0.5); -}; + GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment; + return int(adj->page_size); +} int wxScrollBar::GetPageSize() const { - return (int)(m_adjust->page_increment+0.5); -}; + GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment; + return int(adj->page_increment); +} int wxScrollBar::GetRange() const { - return (int)(m_adjust->upper+0.5); -}; - -void wxScrollBar::SetPosition( int viewStart ) -{ - float fpos = (float)viewStart; - m_oldPos = fpos; - if (fabs(fpos-m_adjust->value) < 0.2) return; - m_adjust->value = fpos; - - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); -}; - -void wxScrollBar::SetScrollbar( int position, int thumbSize, int range, int pageSize, - bool WXUNUSED(refresh) ) -{ - float fpos = (float)position; - m_oldPos = fpos; - float frange = (float)range; - float fthumb = (float)thumbSize; - float fpage = (float)pageSize; - - if ((fabs(fpos-m_adjust->value) < 0.2) && - (fabs(frange-m_adjust->upper) < 0.2) && - (fabs(fthumb-m_adjust->page_size) < 0.2) && - (fabs(fpage-m_adjust->page_increment) < 0.2)) - return; - - m_adjust->lower = 0.0; - m_adjust->upper = frange; - m_adjust->value = fpos; - m_adjust->step_increment = 1.0; - m_adjust->page_increment = (float)(wxMax(fpage-2,0)); - m_adjust->page_size = fthumb; - - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); -}; - -// Backward compatibility -int wxScrollBar::GetValue(void) const -{ - return GetPosition(); -}; - -void wxScrollBar::SetValue( int viewStart ) -{ - SetPosition( viewStart ); -}; - -void wxScrollBar::GetValues( int *viewStart, int *viewLength, int *objectLength, int *pageLength ) const -{ - int pos = (int)(m_adjust->value+0.5); - int thumb = (int)(m_adjust->page_size+0.5); - int page = (int)(m_adjust->page_increment+0.5); - int range = (int)(m_adjust->upper+0.5); - - *viewStart = pos; - *viewLength = range; - *objectLength = thumb; - *pageLength = page; -}; - -int wxScrollBar::GetViewLength() const -{ - return (int)(m_adjust->upper+0.5); -}; - -int wxScrollBar::GetObjectLength() const -{ - return (int)(m_adjust->page_size+0.5); -}; + GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment; + return int(adj->upper); +} + +void wxScrollBar::SetThumbPosition( int viewStart ) +{ + if (GetThumbPosition() != viewStart) + { + BlockScrollEvent(); + gtk_range_set_value((GtkRange*)m_widget, viewStart); + UnblockScrollEvent(); + GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment; + const int i = HasFlag(wxSB_VERTICAL); + m_scrollPos[i] = adj->value; + } +} + +void wxScrollBar::SetScrollbar(int position, int thumbSize, int range, int pageSize, bool) +{ + if (range == 0) + { + // GtkRange requires upper > lower + range = + thumbSize = 1; + } + GtkAdjustment* adj = ((GtkRange*)m_widget)->adjustment; + adj->value = position; + adj->step_increment = 1; + adj->page_increment = pageSize; + adj->page_size = thumbSize; + BlockScrollEvent(); + gtk_range_set_range((GtkRange*)m_widget, 0, range); + UnblockScrollEvent(); + const int i = HasFlag(wxSB_VERTICAL); + m_scrollPos[i] = adj->value; +} void wxScrollBar::SetPageSize( int pageLength ) { - int pos = (int)(m_adjust->value+0.5); - int thumb = (int)(m_adjust->page_size+0.5); - int range = (int)(m_adjust->upper+0.5); - SetScrollbar( pos, thumb, range, pageLength ); -}; + SetScrollbar(GetThumbPosition(), GetThumbSize(), GetRange(), pageLength); +} + +void wxScrollBar::SetRange(int range) +{ + SetScrollbar(GetThumbPosition(), GetThumbSize(), range, GetPageSize()); +} -void wxScrollBar::SetObjectLength( int objectLength ) +bool wxScrollBar::IsOwnGtkWindow( GdkWindow *window ) { - int pos = (int)(m_adjust->value+0.5); - int page = (int)(m_adjust->page_increment+0.5); - int range = (int)(m_adjust->upper+0.5); - SetScrollbar( pos, objectLength, range, page ); -}; + GtkRange *range = GTK_RANGE(m_widget); + return ( (window == GTK_WIDGET(range)->window) ); +} -void wxScrollBar::SetViewLength( int viewLength ) +// static +wxVisualAttributes +wxScrollBar::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) { - int pos = (int)(m_adjust->value+0.5); - int thumb = (int)(m_adjust->page_size+0.5); - int page = (int)(m_adjust->page_increment+0.5); - SetScrollbar( pos, thumb, viewLength, page ); -}; + return GetDefaultAttributesFromGTKWidget(gtk_vscrollbar_new); +} +#endif // wxUSE_SCROLLBAR