X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/f5368809947ac5bf4c2b956b5519e5bc51375f53..15678bec37c6e3cb8a67a8b041579af595d4ccf3:/src/gtk/slider.cpp diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp index d1532a7702..eeb55ab4f5 100644 --- a/src/gtk/slider.cpp +++ b/src/gtk/slider.cpp @@ -1,10 +1,10 @@ ///////////////////////////////////////////////////////////////////////////// -// Name: slider.cpp +// Name: gtk/slider.cpp // Purpose: // Author: Robert Roebling // Id: $Id$ // Copyright: (c) 1998 Robert Roebling -// Licence: wxWindows licence +// Licence: wxWindows licence ///////////////////////////////////////////////////////////////////////////// #ifdef __GNUG__ @@ -12,50 +12,69 @@ #endif #include "wx/slider.h" + +#if wxUSE_SLIDER + #include "wx/utils.h" + #include +#include +#include + +//----------------------------------------------------------------------------- +// idle system +//----------------------------------------------------------------------------- + +extern void wxapp_install_idle_handler(); +extern bool g_isIdle; + //----------------------------------------------------------------------------- // data //----------------------------------------------------------------------------- -extern bool g_blockEventsOnDrag; +extern bool g_blockEventsOnDrag; + +static const float sensitivity = 0.02; //----------------------------------------------------------------------------- // "value_changed" //----------------------------------------------------------------------------- -static void gtk_slider_callback( GtkWidget *WXUNUSED(widget), wxSlider *win ) -{ - if (!win->HasVMT()) return; - if (g_blockEventsOnDrag) 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 = wxVERTICAL; - - 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 ); +static void gtk_slider_callback( GtkAdjustment *adjust, wxSlider *win ) +{ + if (g_isIdle) wxapp_install_idle_handler(); + + 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 ); } //----------------------------------------------------------------------------- @@ -64,182 +83,181 @@ static void gtk_slider_callback( GtkWidget *WXUNUSED(widget), wxSlider *win ) IMPLEMENT_DYNAMIC_CLASS(wxSlider,wxControl) -wxSlider::wxSlider(void) -{ -} - -wxSlider::~wxSlider(void) -{ -} - 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 ) { - m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - SetValidator( validator ); - - m_oldPos = 0.0; - - if (style & wxSL_VERTICAL == wxSL_VERTICAL) - m_widget = gtk_hscale_new( (GtkAdjustment *) NULL ); - else - m_widget = gtk_vscale_new( (GtkAdjustment *) NULL ); - - 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->AddChild( this ); - - (m_parent->m_insertCallback)( m_parent, this ); - - PostCreation(); - - SetBackgroundColour( parent->GetBackgroundColour() ); - - Show( TRUE ); - - return TRUE; + 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(void) const +int wxSlider::GetValue() const { - return (int)(m_adjust->value+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); } void wxSlider::SetValue( 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" ); -} + float fpos = (float)value; + m_oldPos = fpos; + if (fabs(fpos-m_adjust->value) < 0.2) return; -void wxSlider::SetRange( int minValue, int maxValue ) -{ - 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" ); -} + m_adjust->value = fpos; -int wxSlider::GetMin(void) const -{ - return (int)(m_adjust->lower+0.5); + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); } -int wxSlider::GetMax(void) const +void wxSlider::SetRange( int minValue, int maxValue ) { - return (int)(m_adjust->upper+0.5); -} + float fmin = (float)minValue; + float fmax = (float)maxValue; -void wxSlider::SetPageSize( int pageSize ) -{ - float fpage = (float)pageSize; - - if (fabs(fpage-m_adjust->page_increment) < 0.2) return; - - m_adjust->page_increment = fpage; + 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::GetPageSize(void) const -{ - return (int)(m_adjust->page_increment+0.5); + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); } -void wxSlider::SetThumbLength( int len ) +int wxSlider::GetMin() const { - float flen = (float)len; - - if (fabs(flen-m_adjust->page_size) < 0.2) return; - - m_adjust->page_size = flen; - - gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); + return (int)ceil(m_adjust->lower); } -int wxSlider::GetThumbLength(void) const +int wxSlider::GetMax() const { - return (int)(m_adjust->page_size+0.5); + return (int)ceil(m_adjust->upper); } -void wxSlider::SetLineSize( int WXUNUSED(lineSize) ) +void wxSlider::SetPageSize( int pageSize ) { -} + float fpage = (float)pageSize; -int wxSlider::GetLineSize(void) const -{ - return 0; -} + if (fabs(fpage-m_adjust->page_increment) < 0.2) return; -void wxSlider::SetTick( int WXUNUSED(tickPos) ) -{ -} + m_adjust->page_increment = fpage; -void wxSlider::SetTickFreq( int WXUNUSED(n), int WXUNUSED(pos) ) -{ + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); } -int wxSlider::GetTickFreq(void) const +int wxSlider::GetPageSize() const { - return 0; + return (int)ceil(m_adjust->page_increment); } -void wxSlider::ClearTicks(void) +void wxSlider::SetThumbLength( int len ) { -} + float flen = (float)len; -void wxSlider::SetSelection( int WXUNUSED(minPos), int WXUNUSED(maxPos) ) -{ + if (fabs(flen-m_adjust->page_size) < 0.2) return; + + m_adjust->page_size = flen; + + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); } -int wxSlider::GetSelEnd(void) const +int wxSlider::GetThumbLength() const { - return 0; + return (int)ceil(m_adjust->page_size); } -int wxSlider::GetSelStart(void) const +void wxSlider::SetLineSize( int WXUNUSED(lineSize) ) { - return 0; } -void wxSlider::ClearSel(void) +int wxSlider::GetLineSize() const { + return 0; } 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) ); + 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 ); + SetWidgetStyle(); + gtk_widget_set_style( m_widget, m_widgetStyle ); } + +#endif