X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/a2053b27b318fe81918a72c838944d1e8cd1524f..abb4f9c93715f5b00c526203af96ed2938a1a2c3:/src/gtk/slider.cpp diff --git a/src/gtk/slider.cpp b/src/gtk/slider.cpp index c28fc43e1b..1a72e16089 100644 --- a/src/gtk/slider.cpp +++ b/src/gtk/slider.cpp @@ -1,22 +1,22 @@ ///////////////////////////////////////////////////////////////////////////// -// 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__ -#pragma implementation "slider.h" -#endif +// For compilers that support precompilation, includes "wx.h". +#include "wx/wxprec.h" #include "wx/slider.h" -#include "wx/utils.h" -#include -#include "gdk/gdk.h" -#include "gtk/gtk.h" +#if wxUSE_SLIDER + +#include "wx/utils.h" +#include "wx/math.h" +#include "wx/gtk/private.h" //----------------------------------------------------------------------------- // idle system @@ -29,49 +29,47 @@ 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 ) -{ +extern "C" { +static void gtk_slider_callback( GtkAdjustment *adjust, + SCROLLBAR_CBACK_ARG + wxSlider *win ) +{ if (g_isIdle) wxapp_install_idle_handler(); if (!win->m_hasVMT) return; if (g_blockEventsOnDrag) return; - - float diff = win->m_adjust->value - win->m_oldPos; - if (fabs(diff) < 0.2) return; - win->m_oldPos = win->m_adjust->value; - - wxEventType command = wxEVT_NULL; - - float line_step = win->m_adjust->step_increment; - float page_step = win->m_adjust->page_increment; - - if (fabs(win->m_adjust->value-win->m_adjust->lower) < 0.2) command = wxEVT_SCROLL_BOTTOM; - else if (fabs(win->m_adjust->value-win->m_adjust->upper) < 0.2) command = wxEVT_SCROLL_TOP; - else 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)ceil(win->m_adjust->value); - - int orient = wxHORIZONTAL; - if (win->GetWindowStyleFlag() & wxSB_VERTICAL == wxSB_VERTICAL) orient = wxVERTICAL; - + + float diff = adjust->value - win->m_oldPos; + if (fabs(diff) < sensitivity) return; + + win->m_oldPos = adjust->value; + + wxEventType command = GtkScrollTypeToWx(GET_SCROLL_TYPE(win->m_widget)); + + 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 @@ -79,14 +77,6 @@ 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, @@ -94,10 +84,13 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id, { m_acceptsFocus = TRUE; m_needParent = TRUE; - - PreCreation( parent, id, pos, size, style, name ); - - SetValidator( validator ); + + 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; @@ -105,11 +98,12 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id, 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) @@ -135,29 +129,30 @@ bool wxSlider::Create(wxWindow *parent, wxWindowID id, 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 ); - + +#ifdef __WXGTK20__ + if (style & wxSL_INVERSE) + gtk_range_set_inverted( GTK_RANGE(m_widget), TRUE ); +#endif + + GtkEnableEvents(); + SetRange( minValue, maxValue ); SetValue( value ); - + m_parent->DoAddChild( this ); - - PostCreation(); - - SetBackgroundColour( parent->GetBackgroundColour() ); - Show( TRUE ); - + PostCreation(size); + 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 ) @@ -165,35 +160,45 @@ 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; - + + GtkDisableEvents(); + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "value_changed" ); + + GtkEnableEvents(); } 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; + m_adjust->step_increment = 1.0; + m_adjust->page_increment = ceil((fmax-fmin) / 10.0); + GtkDisableEvents(); + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); + + GtkEnableEvents(); } -int wxSlider::GetMin(void) const +int wxSlider::GetMin() const { return (int)ceil(m_adjust->lower); } -int wxSlider::GetMax(void) const +int wxSlider::GetMax() const { return (int)ceil(m_adjust->upper); } @@ -201,15 +206,19 @@ int wxSlider::GetMax(void) const void wxSlider::SetPageSize( int pageSize ) { float fpage = (float)pageSize; - + if (fabs(fpage-m_adjust->page_increment) < 0.2) return; - + m_adjust->page_increment = fpage; + GtkDisableEvents(); + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); + + GtkEnableEvents(); } -int wxSlider::GetPageSize(void) const +int wxSlider::GetPageSize() const { return (int)ceil(m_adjust->page_increment); } @@ -217,15 +226,19 @@ int wxSlider::GetPageSize(void) const void wxSlider::SetThumbLength( int len ) { float flen = (float)len; - + if (fabs(flen-m_adjust->page_size) < 0.2) return; - + m_adjust->page_size = flen; + GtkDisableEvents(); + gtk_signal_emit_by_name( GTK_OBJECT(m_adjust), "changed" ); + + GtkEnableEvents(); } -int wxSlider::GetThumbLength(void) const +int wxSlider::GetThumbLength() const { return (int)ceil(m_adjust->page_size); } @@ -234,58 +247,45 @@ void wxSlider::SetLineSize( int WXUNUSED(lineSize) ) { } -int wxSlider::GetLineSize(void) const +int wxSlider::GetLineSize() const { return 0; } -void wxSlider::SetTick( int WXUNUSED(tickPos) ) -{ -} - -void wxSlider::SetTickFreq( int WXUNUSED(n), int WXUNUSED(pos) ) -{ -} - -int wxSlider::GetTickFreq(void) const -{ - return 0; -} - -void wxSlider::ClearTicks(void) -{ -} - -void wxSlider::SetSelection( int WXUNUSED(minPos), int WXUNUSED(maxPos) ) -{ -} - -int wxSlider::GetSelEnd(void) const +bool wxSlider::IsOwnGtkWindow( GdkWindow *window ) { - return 0; + GtkRange *range = GTK_RANGE(m_widget); +#ifdef __WXGTK20__ + return (range->event_window == window); +#else + return ( (window == GTK_WIDGET(range)->window) + || (window == range->trough) + || (window == range->slider) + || (window == range->step_forw) + || (window == range->step_back) ); +#endif } -int wxSlider::GetSelStart(void) const +void wxSlider::GtkDisableEvents() { - return 0; + gtk_signal_disconnect_by_func( GTK_OBJECT(m_adjust), + GTK_SIGNAL_FUNC(gtk_slider_callback), + (gpointer) this ); } -void wxSlider::ClearSel(void) +void wxSlider::GtkEnableEvents() { + gtk_signal_connect( GTK_OBJECT (m_adjust), + "value_changed", + GTK_SIGNAL_FUNC(gtk_slider_callback), + (gpointer) this ); } -bool wxSlider::IsOwnGtkWindow( GdkWindow *window ) +// static +wxVisualAttributes +wxSlider::GetClassDefaultAttributes(wxWindowVariant WXUNUSED(variant)) { - 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) ); + return GetDefaultAttributesFromGTKWidget(gtk_vscale_new); } -void wxSlider::ApplyWidgetStyle() -{ - SetWidgetStyle(); - gtk_widget_set_style( m_widget, m_widgetStyle ); -} +#endif