X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/7798a18ec81d3733082bc60a958fac1d4510faca..d9ff0f91fbddae88286567cab74dcfb59c91fc0f:/src/gtk/slider.cpp diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp index 4b2385afd1..eeb55ab4f5 100644 --- a/src/gtk/slider.cpp +++ b/src/gtk/slider.cpp @@ -1,247 +1,263 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: slider.cpp +// Name: gtk/slider.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 ///////////////////////////////////////////////////////////////////////////// - #ifdef __GNUG__ #pragma implementation "slider.h" #endif #include "wx/slider.h" + +#if wxUSE_SLIDER + #include "wx/utils.h" +#include + +#include +#include + //----------------------------------------------------------------------------- -// wxSlider +// idle system //----------------------------------------------------------------------------- -void gtk_slider_callback( GtkWidget *WXUNUSED(widget), wxSlider *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_SLIDER_UPDATED, win->GetId() ); - cevent.SetEventObject( win ); - win->ProcessEvent( cevent ); -}; +extern void wxapp_install_idle_handler(); +extern bool g_isIdle; -IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl) +//----------------------------------------------------------------------------- +// data +//----------------------------------------------------------------------------- -wxSlider::wxSlider(void) -{ -}; +extern bool g_blockEventsOnDrag; -wxSlider::wxSlider( wxWindow *parent, const wxWindowID id, - const int value, const int minValue, const int maxValue, - const wxPoint& pos, const wxSize& size, - const long style, -/* const wxValidator& validator = wxDefaultValidator, */ - const wxString& name ) -{ - Create( parent, id, value, minValue, maxValue, - pos, size, style, name ); -}; +static const float sensitivity = 0.02; -wxSlider::~wxSlider(void) -{ -}; +//----------------------------------------------------------------------------- +// "value_changed" +//----------------------------------------------------------------------------- -bool wxSlider::Create(wxWindow *parent, const wxWindowID id, - const int value, const int minValue, const int maxValue, - const wxPoint& pos, const wxSize& size, - const long style, -/* const wxValidator& validator = wxDefaultValidator, */ - const wxString& name ) -{ - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - m_oldPos = 0.0; - - if (style & wxSL_VERTICAL == wxSL_VERTICAL) - m_widget = gtk_hscale_new( NULL ); - else - m_widget = gtk_vscale_new( NULL ); - - m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) ); - - gtk_signal_connect (GTK_OBJECT (m_adjust), "value_changed", - (GtkSignalFunc) gtk_slider_callback, (gpointer) this ); - SetRange( minValue, maxValue ); - SetValue( value ); - - PostCreation(); - - Show( TRUE ); - - return TRUE; -}; - -int wxSlider::GetValue(void) const +static void gtk_slider_callback( GtkAdjustment *adjust, wxSlider *win ) { - return (int)(m_adjust->value+0.5); -}; + if (g_isIdle) wxapp_install_idle_handler(); -void wxSlider::SetValue( const int value ) -{ - float fpos = (float)value; - 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 wxSlider::SetRange( const int minValue, const int maxValue ) + if (!win->m_hasVMT) return; + if (g_blockEventsOnDrag) return; + + float diff = adjust->value - win->m_oldPos; + if (fabs(diff) < sensitivity) return; + + win->m_oldPos = adjust->value; + + GtkRange *range = GTK_RANGE( win->m_widget ); + + wxEventType command = wxEVT_SCROLL_THUMBTRACK; + if (range->scroll_type == GTK_SCROLL_STEP_BACKWARD) command = wxEVT_SCROLL_LINEUP; + else if (range->scroll_type == GTK_SCROLL_STEP_FORWARD) command = wxEVT_SCROLL_LINEDOWN; + else if (range->scroll_type == GTK_SCROLL_PAGE_BACKWARD) command = wxEVT_SCROLL_PAGEUP; + else if (range->scroll_type == GTK_SCROLL_PAGE_FORWARD) command = wxEVT_SCROLL_PAGEDOWN; + + double dvalue = adjust->value; + int value = (int)(dvalue < 0 ? dvalue - 0.5 : dvalue + 0.5); + + int orient = win->GetWindowStyleFlag() & wxSL_VERTICAL ? wxVERTICAL + : wxHORIZONTAL; + + wxScrollEvent event( command, win->GetId(), value, orient ); + event.SetEventObject( win ); + win->GetEventHandler()->ProcessEvent( event ); + + wxCommandEvent cevent( wxEVT_COMMAND_SLIDER_UPDATED, win->GetId() ); + cevent.SetEventObject( win ); + cevent.SetInt( value ); + win->GetEventHandler()->ProcessEvent( cevent ); +} + +//----------------------------------------------------------------------------- +// wxSlider +//----------------------------------------------------------------------------- + +IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl) + +bool wxSlider::Create(wxWindow *parent, wxWindowID id, + int value, int minValue, int maxValue, + const wxPoint& pos, const wxSize& size, + long style, const wxValidator& validator, const wxString& name ) { - float fmin = (float)minValue; - float fmax = (float)maxValue; - - if ((fabs(fmin-m_adjust->lower) < 0.2) && - (fabs(fmax-m_adjust->upper) < 0.2)) - return; - - m_adjust->lower = fmin; - m_adjust->upper = fmax; - - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); -}; - -int wxSlider::GetMin(void) const + m_acceptsFocus = TRUE; + m_needParent = TRUE; + + if (!PreCreation( parent, pos, size ) || + !CreateBase( parent, id, pos, size, style, validator, name )) + { + wxFAIL_MSG( wxT("wxSlider creation failed") ); + return FALSE; + } + + m_oldPos = 0.0; + + if (style & wxSL_VERTICAL) + m_widget = gtk_vscale_new( (GtkAdjustment *) NULL ); + else + m_widget = gtk_hscale_new( (GtkAdjustment *) NULL ); + + if (style & wxSL_LABELS) + { + gtk_scale_set_draw_value( GTK_SCALE( m_widget ), TRUE ); + gtk_scale_set_digits( GTK_SCALE( m_widget ), 0 ); + + /* labels need more space and too small window will + cause junk to appear on the dialog */ + if (style & wxSL_VERTICAL) + { + wxSize sz( size ); + if (sz.x < 35) + { + sz.x = 35; + SetSize( sz ); + } + } + else + { + wxSize sz( size ); + if (sz.y < 35) + { + sz.y = 35; + SetSize( sz ); + } + } + } + else + gtk_scale_set_draw_value( GTK_SCALE( m_widget ), FALSE ); + + m_adjust = gtk_range_get_adjustment( GTK_RANGE(m_widget) ); + + gtk_signal_connect( GTK_OBJECT(m_adjust), + "value_changed", + (GtkSignalFunc) gtk_slider_callback, + (gpointer) this ); + + SetRange( minValue, maxValue ); + SetValue( value ); + + m_parent->DoAddChild( this ); + + PostCreation(); + + SetBackgroundColour( parent->GetBackgroundColour() ); + + Show( TRUE ); + + return TRUE; +} + +int wxSlider::GetValue() const { - return (int)(m_adjust->lower+0.5); -}; + // we want to round to the nearest integer, i.e. 0.9 is rounded to 1 and + // -0.9 is rounded to -1 + double val = m_adjust->value; + return (int)(val < 0 ? val - 0.5 : val + 0.5); +} -int wxSlider::GetMax(void) const +void wxSlider::SetValue( int value ) { - return (int)(m_adjust->upper+0.5); -}; + float fpos = (float)value; + m_oldPos = fpos; + if (fabs(fpos-m_adjust->value) < 0.2) return; -void wxSlider::SetPageSize( const int pageSize ) -{ - float fpage = (float)pageSize; - - if (fabs(fpage-m_adjust->page_increment) < 0.2) return; - - m_adjust->page_increment = fpage; + m_adjust->value = fpos; - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); -}; + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); +} -int wxSlider::GetPageSize(void) const +void wxSlider::SetRange( int minValue, int maxValue ) { - return (int)(m_adjust->page_increment+0.5); -}; + float fmin = (float)minValue; + float fmax = (float)maxValue; -void wxSlider::SetThumbLength( const int len ) -{ - float flen = (float)len; - - if (fabs(flen-m_adjust->page_size) < 0.2) return; - - m_adjust->page_size = flen; + if ((fabs(fmin-m_adjust->lower) < 0.2) && + (fabs(fmax-m_adjust->upper) < 0.2)) + { + return; + } - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); -}; + m_adjust->lower = fmin; + m_adjust->upper = fmax; + m_adjust->step_increment = 1.0; + m_adjust->page_increment = ceil((fmax-fmin) / 10.0); -int wxSlider::GetThumbLength(void) const + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); +} + +int wxSlider::GetMin() const { - return (int)(m_adjust->page_size+0.5); -}; + return (int)ceil(m_adjust->lower); +} -void wxSlider::SetLineSize( const int WXUNUSED(lineSize) ) +int wxSlider::GetMax() const { -}; + return (int)ceil(m_adjust->upper); +} -int wxSlider::GetLineSize(void) const +void wxSlider::SetPageSize( int pageSize ) { - return 0; -}; + float fpage = (float)pageSize; -// not supported in wxGTK (and GTK) + if (fabs(fpage-m_adjust->page_increment) < 0.2) return; -void wxSlider::GetSize( int *x, int *y ) const -{ - wxWindow::GetSize( x, y ); -}; + m_adjust->page_increment = fpage; -void wxSlider::SetSize( const int x, const int y, const int width, const int height, const int sizeFlags ) -{ - wxWindow::SetSize( x, y, width, height, sizeFlags ); -}; + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); +} -void wxSlider::GetPosition( int *x, int *y ) const +int wxSlider::GetPageSize() const { - wxWindow::GetPosition( x, y ); -}; + return (int)ceil(m_adjust->page_increment); +} -void wxSlider::SetTick( const int WXUNUSED(tickPos) ) +void wxSlider::SetThumbLength( int len ) { -}; + float flen = (float)len; -void wxSlider::SetTickFreq( const int WXUNUSED(n), const int WXUNUSED(pos) ) -{ -}; + if (fabs(flen-m_adjust->page_size) < 0.2) return; -int wxSlider::GetTickFreq(void) const -{ - return 0; -}; + m_adjust->page_size = flen; -void wxSlider::ClearTicks(void) -{ -}; + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); +} -void wxSlider::SetSelection( const int WXUNUSED(minPos), const int WXUNUSED(maxPos) ) +int wxSlider::GetThumbLength() const { -}; + return (int)ceil(m_adjust->page_size); +} -int wxSlider::GetSelEnd(void) const +void wxSlider::SetLineSize( int WXUNUSED(lineSize) ) { - return 0; -}; +} -int wxSlider::GetSelStart(void) const +int wxSlider::GetLineSize() const { - return 0; -}; + return 0; +} -void wxSlider::ClearSel(void) +bool wxSlider::IsOwnGtkWindow( GdkWindow *window ) { -}; + GtkRange *range = GTK_RANGE(m_widget); + return ( (window == GTK_WIDGET(range)->window) || + (window == range->trough) || + (window == range->slider) || + (window == range->step_forw) || + (window == range->step_back) ); +} + +void wxSlider::ApplyWidgetStyle() +{ + SetWidgetStyle(); + gtk_widget_set_style( m_widget, m_widgetStyle ); +} +#endif