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spinbutton code simplification

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git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@39202 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775
This commit is contained in:
Paul Cornett
2006-05-18 03:08:25 +00:00
parent de7bb80239
commit a01ed326cc
3 changed files with 49 additions and 81 deletions
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119
src/gtk/spinbutt.cpp
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@@ -19,7 +19,6 @@
#include "wx/utils.h"
#endif
#include "wx/math.h"
#include "wx/gtk/private.h"
//-----------------------------------------------------------------------------
@@ -28,65 +27,46 @@
extern bool g_blockEventsOnDrag;
static const float sensitivity = 0.02;
//-----------------------------------------------------------------------------
// "value_changed"
//-----------------------------------------------------------------------------
extern "C" {
static void gtk_spinbutt_callback( GtkWidget *WXUNUSED(widget), wxSpinButton *win )
static void
gtk_value_changed(GtkSpinButton* spinbutton, wxSpinButton* win)
{
if (g_isIdle) wxapp_install_idle_handler();
if (!win->m_hasVMT) return;
if (g_blockEventsOnDrag) return;
const double value = gtk_spin_button_get_value(spinbutton);
const int pos = int(value);
const int oldPos = win->m_pos;
if (!win->m_hasVMT || g_blockEventsOnDrag || win->m_blockScrollEvent || pos == oldPos)
{
win->m_pos = pos;
return;
}
float diff = win->m_adjust->value - win->m_oldPos;
if (fabs(diff) < sensitivity) return;
wxEventType command = wxEVT_NULL;
float line_step = win->m_adjust->step_increment;
if (fabs(diff-line_step) < sensitivity) command = wxEVT_SCROLL_LINEUP;
else if (fabs(diff+line_step) < sensitivity) command = wxEVT_SCROLL_LINEDOWN;
else command = wxEVT_SCROLL_THUMBTRACK;
int value = (int)ceil(win->m_adjust->value);
wxSpinEvent event( command, win->GetId());
event.SetPosition( value );
event.SetEventObject( win );
wxSpinEvent event(pos > oldPos ? wxEVT_SCROLL_LINEUP : wxEVT_SCROLL_LINEDOWN, win->GetId());
event.SetPosition(pos);
event.SetEventObject(win);
if ((win->GetEventHandler()->ProcessEvent( event )) &&
!event.IsAllowed() )
{
/* program has vetoed */
win->m_adjust->value = win->m_oldPos;
g_signal_handlers_disconnect_by_func (win->m_adjust,
(gpointer) gtk_spinbutt_callback,
win);
g_signal_emit_by_name (win->m_adjust, "value_changed");
g_signal_connect (win->m_adjust, "value_changed",
G_CALLBACK (gtk_spinbutt_callback), win);
win->BlockScrollEvent();
gtk_spin_button_set_value(spinbutton, oldPos);
win->UnblockScrollEvent();
return;
}
win->m_oldPos = win->m_adjust->value;
win->m_pos = pos;
/* always send a thumbtrack event */
if (command != wxEVT_SCROLL_THUMBTRACK)
{
command = wxEVT_SCROLL_THUMBTRACK;
wxSpinEvent event2( command, win->GetId());
event2.SetPosition( value );
event2.SetEventObject( win );
win->GetEventHandler()->ProcessEvent( event2 );
}
wxSpinEvent event2(wxEVT_SCROLL_THUMBTRACK, win->GetId());
event2.SetPosition(pos);
event2.SetEventObject(win);
win->GetEventHandler()->ProcessEvent(event2);
}
}
@@ -101,6 +81,11 @@ BEGIN_EVENT_TABLE(wxSpinButton, wxControl)
EVT_SIZE(wxSpinButton::OnSize)
END_EVENT_TABLE()
wxSpinButton::wxSpinButton()
{
m_pos = 0;
}
bool wxSpinButton::Create(wxWindow *parent,
wxWindowID id,
const wxPoint& pos,
@@ -119,21 +104,19 @@ bool wxSpinButton::Create(wxWindow *parent,
if (!PreCreation( parent, pos, new_size ) ||
!CreateBase( parent, id, pos, new_size, style, wxDefaultValidator, name ))
{
wxFAIL_MSG( wxT("wxXX creation failed") );
wxFAIL_MSG( wxT("wxSpinButton creation failed") );
return false;
}
m_oldPos = 0.0;
m_pos = 0;
m_adjust = (GtkAdjustment*) gtk_adjustment_new( 0.0, 0.0, 100.0, 1.0, 5.0, 0.0);
m_widget = gtk_spin_button_new( m_adjust, 0, 0 );
m_widget = gtk_spin_button_new_with_range(0, 100, 1);
gtk_spin_button_set_wrap( GTK_SPIN_BUTTON(m_widget),
(int)(m_windowStyle & wxSP_WRAP) );
g_signal_connect (m_adjust, "value_changed",
G_CALLBACK (gtk_spinbutt_callback), this);
g_signal_connect_after(
m_widget, "value_changed", G_CALLBACK(gtk_value_changed), this);
m_parent->DoAddChild( this );
@@ -146,57 +129,43 @@ int wxSpinButton::GetMin() const
{
wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
return (int)ceil(m_adjust->lower);
double min;
gtk_spin_button_get_range((GtkSpinButton*)m_widget, &min, NULL);
return int(min);
}
int wxSpinButton::GetMax() const
{
wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
return (int)ceil(m_adjust->upper);
double max;
gtk_spin_button_get_range((GtkSpinButton*)m_widget, NULL, &max);
return int(max);
}
int wxSpinButton::GetValue() const
{
wxCHECK_MSG( (m_widget != NULL), 0, wxT("invalid spin button") );
return (int)ceil(m_adjust->value);
return m_pos;
}
void wxSpinButton::SetValue( int value )
{
wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
float fpos = (float)value;
m_oldPos = fpos;
if (fabs(fpos-m_adjust->value) < sensitivity) return;
m_adjust->value = fpos;
g_signal_emit_by_name (m_adjust, "value_changed");
BlockScrollEvent();
gtk_spin_button_set_value((GtkSpinButton*)m_widget, value);
UnblockScrollEvent();
}
void wxSpinButton::SetRange(int minVal, int maxVal)
{
wxCHECK_RET( (m_widget != NULL), wxT("invalid spin button") );
float fmin = (float)minVal;
float fmax = (float)maxVal;
if ((fabs(fmin-m_adjust->lower) < sensitivity) &&
(fabs(fmax-m_adjust->upper) < sensitivity))
{
return;
}
m_adjust->lower = fmin;
m_adjust->upper = fmax;
g_signal_emit_by_name (m_adjust, "changed");
// these two calls are required due to some bug in GTK
Refresh();
SetFocus();
BlockScrollEvent();
gtk_spin_button_set_range((GtkSpinButton*)m_widget, minVal, maxVal);
UnblockScrollEvent();
}
void wxSpinButton::OnSize( wxSizeEvent &WXUNUSED(event) )