#include "wx/utils.h"
#include "wx/frame.h"
#include "wx/dcclient.h"
+ #include "wx/menu.h"
+ #include "wx/dialog.h"
+ #include "wx/settings.h"
+ #include "wx/msgdlg.h"
+ #include "wx/textctrl.h"
+ #include "wx/toolbar.h"
+ #include "wx/combobox.h"
+ #include "wx/layout.h"
+ #include "wx/statusbr.h"
+ #include "wx/math.h"
#endif
-#include "wx/layout.h"
-#include "wx/dialog.h"
-#include "wx/msgdlg.h"
#include "wx/module.h"
-#include "wx/combobox.h"
-#if wxUSE_TOOLBAR_NATIVE
-#include "wx/toolbar.h"
-#endif
#if wxUSE_DRAG_AND_DROP
#include "wx/dnd.h"
#include "wx/caret.h"
#endif // wxUSE_CARET
-#if wxUSE_TEXTCTRL
- #include "wx/textctrl.h"
-#endif
-
-#include "wx/menu.h"
-#include "wx/statusbr.h"
-#include "wx/settings.h"
#include "wx/fontutil.h"
#ifdef __WXDEBUG__
#include "wx/thread.h"
#endif
-#include "wx/math.h"
#include <ctype.h>
// FIXME: Due to a hack we use GtkCombo in here, which is deprecated since gtk2.3.0
6) Display a border (sunken, raised, simple or none).
Normally one might expect, that one wxWidgets window would always correspond
- to one GTK widget. Under GTK, there is no such allround widget that has all
+ to one GTK widget. Under GTK, there is no such all-round widget that has all
the functionality. Moreover, the GTK defines a client area as a different
widget from the actual widget you are handling. Last but not least some
special classes (e.g. wxFrame) handle different categories of widgets and
clicking on a scrollbar belonging to scrolled window will inevitably move
the window. In wxWidgets, the scrollbar will only emit an event, send this
to (normally) a wxScrolledWindow and that class will call ScrollWindow()
- which actually moves the window and its subchildren. Note that GtkPizza
+ which actually moves the window and its sub-windows. Note that GtkPizza
memorizes how much it has been scrolled but that wxWidgets forgets this
so that the two coordinates systems have to be kept in synch. This is done
in various places using the pizza->xoffset and pizza->yoffset values.
III)
- Singularily the most broken code in GTK is the code that is supposed to
+ Singularly the most broken code in GTK is the code that is supposed to
inform subwindows (child windows) about new positions. Very often, duplicate
events are sent without changes in size or position, equally often no
events are sent at all (All this is due to a bug in the GtkContainer code
// data
//-----------------------------------------------------------------------------
-extern wxList wxPendingDelete;
extern bool g_blockEventsOnDrag;
extern bool g_blockEventsOnScroll;
extern wxCursor g_globalCursor;
// "key_press_event" from any window
//-----------------------------------------------------------------------------
+// These are used when transforming Ctrl-alpha to ascii values 1-26
+inline bool wxIsLowerChar(int code)
+{
+ return (code >= 'a' && code <= 'z' );
+}
+
+inline bool wxIsUpperChar(int code)
+{
+ return (code >= 'A' && code <= 'Z' );
+}
+
+
// set WXTRACE to this to see the key event codes on the console
#define TRACE_KEYS _T("keyevent")
// To conform to the docs we need to translate Ctrl-alpha
// characters to values in the range 1-26.
- if (event.ControlDown() && key_code >= 'a' && key_code <= 'z' )
+ if ( event.ControlDown() &&
+ ( wxIsLowerChar(key_code) || wxIsUpperChar(key_code) ))
{
- event.m_keyCode = key_code - 'a' + 1;
+ if ( wxIsLowerChar(key_code) )
+ event.m_keyCode = key_code - 'a' + 1;
+ if ( wxIsUpperChar(key_code) )
+ event.m_keyCode = key_code - 'A' + 1;
#if wxUSE_UNICODE
event.m_uniChar = event.m_keyCode;
#endif
{
// however only do it if we have a Cancel button in the dialog,
// otherwise the user code may get confused by the events from a
- // non-existing button and, worse, a wxButton might get button event
+ // nonexistent button and, worse, a wxButton might get button event
// from another button which is not really expected
wxWindow *winForCancel = win,
*btnCancel = NULL;
// To conform to the docs we need to translate Ctrl-alpha
// characters to values in the range 1-26.
- if (event.ControlDown() && *pstr >= 'a' && *pstr <= 'z' )
+ if ( event.ControlDown() &&
+ ( wxIsLowerChar(*pstr) || wxIsUpperChar(*pstr) ))
{
+ if ( wxIsLowerChar(*pstr) )
+ event.m_keyCode = *pstr - 'a' + 1;
+ if ( wxIsUpperChar(*pstr) )
+ event.m_keyCode = *pstr - 'A' + 1;
+
event.m_keyCode = *pstr - 'a' + 1;
#if wxUSE_UNICODE
event.m_uniChar = event.m_keyCode;
break;
default:
- // unknwon button, don't process
+ // unknown button, don't process
return FALSE;
}
if ( g_captureWindow )
{
- // synthetize a mouse enter or leave event if needed
+ // synthesise a mouse enter or leave event if needed
GdkWindow *winUnderMouse = gdk_window_at_pointer(NULL, NULL);
// This seems to be necessary and actually been added to
// GDK itself in version 2.0.X
}
//-----------------------------------------------------------------------------
-// "value_changed" from m_vAdjust
+// "value_changed" from scrollbar
//-----------------------------------------------------------------------------
extern "C" {
-static void gtk_window_vscroll_callback( GtkAdjustment *adjust,
- wxWindowGTK *win )
+static void
+gtk_scrollbar_value_changed(GtkRange* range, wxWindow* win)
{
- DEBUG_MAIN_THREAD
-
- if (g_isIdle)
- wxapp_install_idle_handler();
-
- if (g_blockEventsOnDrag) return;
-
- if (!win->m_hasVMT) return;
-
- float diff = adjust->value - win->m_oldVerticalPos;
- if (fabs(diff) < 0.2) return;
-
- win->m_oldVerticalPos = adjust->value;
-
- wxEventType command = GtkScrollWinTypeToWx(GTK_SCROLL_JUMP);
-
- int value = (int)(adjust->value+0.5);
-
- wxScrollWinEvent event( command, value, wxVERTICAL );
- event.SetEventObject( win );
- win->GetEventHandler()->ProcessEvent( event );
+ wxEventType eventType = win->GetScrollEventType(range);
+ if (eventType != wxEVT_NULL)
+ {
+ // Convert scroll event type to scrollwin event type
+ eventType += wxEVT_SCROLLWIN_TOP - wxEVT_SCROLL_TOP;
+ const int orient = range == win->m_scrollBar[0] ? wxHORIZONTAL : wxVERTICAL;
+ const int i = orient == wxVERTICAL;
+ wxScrollWinEvent event(eventType, win->GetScrollPos(orient), orient);
+ event.SetEventObject(win);
+ win->m_blockValueChanged[i] = true;
+ win->GetEventHandler()->ProcessEvent(event);
+ win->m_blockValueChanged[i] = false;
+ }
}
}
//-----------------------------------------------------------------------------
-// "value_changed" from m_hAdjust
+// "button_press_event" from scrollbar
//-----------------------------------------------------------------------------
extern "C" {
-static void gtk_window_hscroll_callback( GtkAdjustment *adjust,
- wxWindowGTK *win )
+static gboolean
+gtk_scrollbar_button_press_event(GtkRange*, GdkEventButton*, wxWindow* win)
{
DEBUG_MAIN_THREAD
if (g_isIdle)
wxapp_install_idle_handler();
- if (g_blockEventsOnDrag) return;
- if (!win->m_hasVMT) return;
-
- float diff = adjust->value - win->m_oldHorizontalPos;
- if (fabs(diff) < 0.2) return;
-
- wxEventType command = GtkScrollWinTypeToWx(GTK_SCROLL_JUMP);
-
- win->m_oldHorizontalPos = adjust->value;
-
- int value = (int)(adjust->value+0.5);
+ g_blockEventsOnScroll = true;
+ win->m_mouseButtonDown = true;
- wxScrollWinEvent event( command, value, wxHORIZONTAL );
- event.SetEventObject( win );
- win->GetEventHandler()->ProcessEvent( event );
+ return false;
}
}
//-----------------------------------------------------------------------------
-// "button_press_event" from scrollbar
+// "event_after" from scrollbar
//-----------------------------------------------------------------------------
extern "C" {
-static gboolean
-gtk_scrollbar_button_press_callback( GtkWidget *widget,
- GdkEventButton *gdk_event,
- wxWindowGTK *win)
+static void
+gtk_scrollbar_event_after(GtkRange* range, GdkEvent* event, wxWindow* win)
{
- DEBUG_MAIN_THREAD
-
- if (g_isIdle)
- wxapp_install_idle_handler();
-
-
- g_blockEventsOnScroll = true;
-
-// FIXME: there is no 'slider' field in GTK+ 2.0 any more
-#if 0
- win->m_isScrolling = (gdk_event->window == widget->slider);
-#endif
+ if (event->type == GDK_BUTTON_RELEASE)
+ {
+ g_signal_handlers_block_by_func(range, (void*)gtk_scrollbar_event_after, win);
- return FALSE;
+ const int orient = range == win->m_scrollBar[0] ? wxHORIZONTAL : wxVERTICAL;
+ wxScrollWinEvent event(wxEVT_SCROLLWIN_THUMBRELEASE, win->GetScrollPos(orient), orient);
+ event.SetEventObject(win);
+ win->GetEventHandler()->ProcessEvent(event);
+ }
}
}
extern "C" {
static gboolean
-gtk_scrollbar_button_release_callback( GtkRange *widget,
- GdkEventButton *WXUNUSED(gdk_event),
- wxWindowGTK *win)
+gtk_scrollbar_button_release_event(GtkRange* range, GdkEventButton*, wxWindow* win)
{
DEBUG_MAIN_THREAD
-// don't test here as we can release the mouse while being over
-// a different window than the slider
-//
-// if (gdk_event->window != widget->slider) return FALSE;
-
g_blockEventsOnScroll = false;
-
+ win->m_mouseButtonDown = false;
+ // If thumb tracking
if (win->m_isScrolling)
{
- wxEventType command = wxEVT_SCROLLWIN_THUMBRELEASE;
- int value = -1;
- int dir = -1;
-
- GtkScrolledWindow *scrolledWindow = GTK_SCROLLED_WINDOW(win->m_widget);
- if (widget == GTK_RANGE(scrolledWindow->hscrollbar))
- {
- value = (int)(win->m_hAdjust->value+0.5);
- dir = wxHORIZONTAL;
- }
- if (widget == GTK_RANGE(scrolledWindow->vscrollbar))
- {
- value = (int)(win->m_vAdjust->value+0.5);
- dir = wxVERTICAL;
- }
-
- wxScrollWinEvent event( command, value, dir );
- event.SetEventObject( win );
- win->GetEventHandler()->ProcessEvent( event );
+ win->m_isScrolling = false;
+ // Hook up handler to send thumb release event after this emission is finished.
+ // To allow setting scroll position from event handler, sending event must
+ // be deferred until after the GtkRange handler for this signal has run
+ g_signal_handlers_unblock_by_func(range, (void*)gtk_scrollbar_event_after, win);
}
- win->m_isScrolling = false;
-
- return FALSE;
+ return false;
}
}
m_hasScrolling = false;
m_isScrolling = false;
+ m_mouseButtonDown = false;
+ m_blockScrollEvent = false;
+
+ m_scrollBar[0] =
+ m_scrollBar[1] = NULL;
+ m_scrollPos[0] =
+ m_scrollPos[1] = 0;
+ m_blockValueChanged[0] =
+ m_blockValueChanged[1] = false;
- m_hAdjust = (GtkAdjustment*) NULL;
- m_vAdjust = (GtkAdjustment*) NULL;
- m_oldHorizontalPos =
- m_oldVerticalPos = 0.0;
m_oldClientWidth =
m_oldClientHeight = 0;
gtk_scrolled_window_set_policy( scrolledWindow, GTK_POLICY_AUTOMATIC, GTK_POLICY_AUTOMATIC );
- m_hAdjust = gtk_range_get_adjustment( GTK_RANGE(scrolledWindow->hscrollbar) );
- m_vAdjust = gtk_range_get_adjustment( GTK_RANGE(scrolledWindow->vscrollbar) );
+ m_scrollBar[0] = GTK_RANGE(scrolledWindow->hscrollbar);
+ m_scrollBar[1] = GTK_RANGE(scrolledWindow->vscrollbar);
m_wxwindow = gtk_pizza_new();
GTK_WIDGET_SET_FLAGS( m_wxwindow, GTK_CAN_FOCUS );
m_acceptsFocus = true;
- // I _really_ don't want scrollbars in the beginning
- m_vAdjust->lower = 0.0;
- m_vAdjust->upper = 1.0;
- m_vAdjust->value = 0.0;
- m_vAdjust->step_increment = 1.0;
- m_vAdjust->page_increment = 1.0;
- m_vAdjust->page_size = 5.0;
- g_signal_emit_by_name (m_vAdjust, "changed");
- m_hAdjust->lower = 0.0;
- m_hAdjust->upper = 1.0;
- m_hAdjust->value = 0.0;
- m_hAdjust->step_increment = 1.0;
- m_hAdjust->page_increment = 1.0;
- m_hAdjust->page_size = 5.0;
- g_signal_emit_by_name (m_hAdjust, "changed");
-
// these handlers block mouse events to any window during scrolling such as
// motion events and prevent GTK and wxWidgets from fighting over where the
// slider should be
- g_signal_connect (scrolledWindow->vscrollbar, "button_press_event",
- G_CALLBACK (gtk_scrollbar_button_press_callback), this);
- g_signal_connect (scrolledWindow->hscrollbar, "button_press_event",
- G_CALLBACK (gtk_scrollbar_button_press_callback), this);
- g_signal_connect (scrolledWindow->vscrollbar, "button_release_event",
- G_CALLBACK (gtk_scrollbar_button_release_callback), this);
- g_signal_connect (scrolledWindow->hscrollbar, "button_release_event",
- G_CALLBACK (gtk_scrollbar_button_release_callback), this);
-
- // these handlers get notified when screen updates are required either when
- // scrolling or when the window size (and therefore scrollbar configuration)
- // has changed
-
- g_signal_connect (m_hAdjust, "value_changed",
- G_CALLBACK (gtk_window_hscroll_callback), this);
- g_signal_connect (m_vAdjust, "value_changed",
- G_CALLBACK (gtk_window_vscroll_callback), this);
+ g_signal_connect(m_scrollBar[0], "button_press_event",
+ G_CALLBACK(gtk_scrollbar_button_press_event), this);
+ g_signal_connect(m_scrollBar[1], "button_press_event",
+ G_CALLBACK(gtk_scrollbar_button_press_event), this);
+ g_signal_connect(m_scrollBar[0], "button_release_event",
+ G_CALLBACK(gtk_scrollbar_button_release_event), this);
+ g_signal_connect(m_scrollBar[1], "button_release_event",
+ G_CALLBACK(gtk_scrollbar_button_release_event), this);
+ gulong handler_id;
+ handler_id = g_signal_connect(
+ m_scrollBar[0], "event_after", G_CALLBACK(gtk_scrollbar_event_after), this);
+ g_signal_handler_block(m_scrollBar[0], handler_id);
+ handler_id = g_signal_connect(
+ m_scrollBar[1], "event_after", G_CALLBACK(gtk_scrollbar_event_after), this);
+ g_signal_handler_block(m_scrollBar[1], handler_id);
+
+ // these handlers get notified when scrollbar slider moves
+
+ g_signal_connect(m_scrollBar[0], "value_changed",
+ G_CALLBACK(gtk_scrollbar_value_changed), this);
+ g_signal_connect(m_scrollBar[1], "value_changed",
+ G_CALLBACK(gtk_scrollbar_value_changed), this);
gtk_widget_show( m_wxwindow );
G_CALLBACK (wxgtk_combo_size_request_callback),
this);
}
+#ifdef GTK_IS_FILE_CHOOSER_BUTTON
+ else if (GTK_IS_FILE_CHOOSER_BUTTON(m_widget))
+ {
+ // If we connect to the "size_request" signal of a GtkFileChooserButton
+ // then that control won't be sized properly when placed inside sizers
+ // (this can be tested removing this elseif and running XRC or WIDGETS samples)
+ // FIXME: what should be done here ?
+ }
+#endif
else
{
// This is needed if we want to add our windows into native
gdk_window_set_cursor( window, cursor.GetCursor() );
}
- else
+ else if ( m_widget )
{
-
GdkWindow *window = m_widget->window;
- if ((window) && !(GTK_WIDGET_NO_WINDOW(m_widget)))
+ if ( window && !GTK_WIDGET_NO_WINDOW(m_widget) )
gdk_window_set_cursor( window, cursor.GetCursor() );
-
}
}
gdk_window_warp_pointer( window, x, y );
}
-static bool wxScrollAdjust(GtkAdjustment* adj, double change)
+bool wxWindowGTK::ScrollLines(int lines)
{
- double value_start = adj->value;
- double value = value_start + change;
- double upper = adj->upper - adj->page_size;
- if (value > upper)
+ bool changed = false;
+ GtkRange* range = m_scrollBar[1];
+ if (range != NULL)
{
- value = upper;
+ GtkAdjustment* adj = range->adjustment;
+ const int pos = int(adj->value + 0.5);
+ gtk_range_set_value(range, pos + lines);
+ changed = pos != int(adj->value + 0.5);
}
- // Lower bound will be checked by gtk_adjustment_set_value
- gtk_adjustment_set_value(adj, value);
- return adj->value != value_start;
-}
-
-bool wxWindowGTK::ScrollLines(int lines)
-{
- return
- m_vAdjust != NULL &&
- wxScrollAdjust(m_vAdjust, lines * m_vAdjust->step_increment);
+ return changed;
}
bool wxWindowGTK::ScrollPages(int pages)
{
- return
- m_vAdjust != NULL &&
- wxScrollAdjust(m_vAdjust, pages * m_vAdjust->page_increment);
-}
-
-void wxWindowGTK::SetVScrollAdjustment(GtkAdjustment* adj)
-{
- wxASSERT(m_vAdjust == NULL);
- m_vAdjust = adj;
+ bool changed = false;
+ GtkRange* range = m_scrollBar[1];
+ if (range != NULL)
+ {
+ GtkAdjustment* adj = range->adjustment;
+ const int pos = int(adj->value + 0.5);
+ gtk_range_set_value(range, pos + pages * adj->page_size);
+ changed = pos != int(adj->value + 0.5);
+ }
+ return changed;
}
void wxWindowGTK::Refresh( bool eraseBackground, const wxRect *rect )
m_updateRegion.Clear();
}
+void wxWindowGTK::SetDoubleBuffered( bool on )
+{
+ wxCHECK_RET( (m_widget != NULL), wxT("invalid window") );
+
+ if ( m_wxwindow )
+ gtk_widget_set_double_buffered( m_wxwindow, on );
+}
+
void wxWindowGTK::ClearBackground()
{
wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
if ( m_foregroundColour.Ok() )
{
- GdkColor *fg = m_foregroundColour.GetColor();
+ const GdkColor *fg = m_foregroundColour.GetColor();
style->fg[GTK_STATE_NORMAL] = *fg;
style->color_flags[GTK_STATE_NORMAL] = GTK_RC_FG;
if ( m_backgroundColour.Ok() )
{
- GdkColor *bg = m_backgroundColour.GetColor();
+ const GdkColor *bg = m_backgroundColour.GetColor();
style->bg[GTK_STATE_NORMAL] = *bg;
style->base[GTK_STATE_NORMAL] = *bg;
return false;
}
+void wxWindowGTK::BlockScrollEvent()
+{
+ wxASSERT(!m_blockScrollEvent);
+ m_blockScrollEvent = true;
+}
+
+void wxWindowGTK::UnblockScrollEvent()
+{
+ wxASSERT(m_blockScrollEvent);
+ m_blockScrollEvent = false;
+}
+
void wxWindowGTK::SetScrollbar( int orient, int pos, int thumbVisible,
- int range, bool refresh )
+ int range, bool )
{
wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
-
wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
- m_hasScrolling = true;
-
- if (orient == wxHORIZONTAL)
+ if (range > 0)
{
- float fpos = (float)pos;
- float frange = (float)range;
- float fthumb = (float)thumbVisible;
- if (fpos > frange-fthumb) fpos = frange-fthumb;
- if (fpos < 0.0) fpos = 0.0;
-
- if ((fabs(frange-m_hAdjust->upper) < 0.2) &&
- (fabs(fthumb-m_hAdjust->page_size) < 0.2))
- {
- SetScrollPos( orient, pos, refresh );
- return;
- }
-
- m_oldHorizontalPos = fpos;
-
- m_hAdjust->lower = 0.0;
- m_hAdjust->upper = frange;
- m_hAdjust->value = fpos;
- m_hAdjust->step_increment = 1.0;
- m_hAdjust->page_increment = (float)(wxMax(fthumb,0));
- m_hAdjust->page_size = fthumb;
+ m_hasScrolling = true;
}
else
{
- float fpos = (float)pos;
- float frange = (float)range;
- float fthumb = (float)thumbVisible;
- if (fpos > frange-fthumb) fpos = frange-fthumb;
- if (fpos < 0.0) fpos = 0.0;
-
- if ((fabs(frange-m_vAdjust->upper) < 0.2) &&
- (fabs(fthumb-m_vAdjust->page_size) < 0.2))
- {
- SetScrollPos( orient, pos, refresh );
- return;
- }
-
- m_oldVerticalPos = fpos;
-
- m_vAdjust->lower = 0.0;
- m_vAdjust->upper = frange;
- m_vAdjust->value = fpos;
- m_vAdjust->step_increment = 1.0;
- m_vAdjust->page_increment = (float)(wxMax(fthumb,0));
- m_vAdjust->page_size = fthumb;
+ // GtkRange requires upper > lower
+ range =
+ thumbVisible = 1;
}
- if (orient == wxHORIZONTAL)
- g_signal_emit_by_name (m_hAdjust, "changed");
- else
- g_signal_emit_by_name (m_vAdjust, "changed");
-}
-
-void wxWindowGTK::GtkUpdateScrollbar(int orient)
-{
- GtkAdjustment *adj = orient == wxHORIZONTAL ? m_hAdjust : m_vAdjust;
- gpointer fn = orient == wxHORIZONTAL
- ? (gpointer) gtk_window_hscroll_callback
- : (gpointer) gtk_window_vscroll_callback;
-
- g_signal_handlers_disconnect_by_func (adj, fn, this);
- g_signal_emit_by_name (adj, "value_changed");
- g_signal_connect (adj, "value_changed", G_CALLBACK (fn), this);
+ if (pos > range - thumbVisible)
+ pos = range - thumbVisible;
+ if (pos < 0)
+ pos = 0;
+ const int i = orient == wxVERTICAL;
+ GtkAdjustment* adj = m_scrollBar[i]->adjustment;
+ adj->step_increment = 1;
+ adj->page_increment =
+ adj->page_size = thumbVisible;
+ adj->upper = range;
+ SetScrollPos(orient, pos);
+ gtk_adjustment_changed(adj);
}
void wxWindowGTK::SetScrollPos( int orient, int pos, bool WXUNUSED(refresh) )
wxCHECK_RET( m_widget != NULL, wxT("invalid window") );
wxCHECK_RET( m_wxwindow != NULL, wxT("window needs client area for scrolling") );
- GtkAdjustment *adj = orient == wxHORIZONTAL ? m_hAdjust : m_vAdjust;
-
- float fpos = (float)pos;
- if (fpos > adj->upper - adj->page_size)
- fpos = adj->upper - adj->page_size;
- if (fpos < 0.0)
- fpos = 0.0;
- *(orient == wxHORIZONTAL ? &m_oldHorizontalPos : &m_oldVerticalPos) = fpos;
-
- if (fabs(fpos-adj->value) < 0.2)
- return;
- adj->value = fpos;
-
- if ( m_wxwindow->window )
+ // This check is more than an optimization. Without it, the slider
+ // will not move smoothly while tracking when using wxScrollHelper.
+ if (GetScrollPos(orient) != pos)
{
+ const int i = orient == wxVERTICAL;
+ GtkAdjustment* adj = m_scrollBar[i]->adjustment;
+ const int max = int(adj->upper - adj->page_size);
+ if (pos > max)
+ pos = max;
+ if (pos < 0)
+ pos = 0;
+ m_scrollPos[i] =
+ adj->value = pos;
+ // If a "value_changed" signal emission is not already in progress
+ if (!m_blockValueChanged[i])
+ {
+ gtk_adjustment_value_changed(adj);
+ }
}
}
int wxWindowGTK::GetScrollThumb( int orient ) const
{
wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
-
wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
- if (orient == wxHORIZONTAL)
- return (int)(m_hAdjust->page_size+0.5);
- else
- return (int)(m_vAdjust->page_size+0.5);
+ const int i = orient == wxVERTICAL;
+ return int(m_scrollBar[i]->adjustment->page_size);
}
int wxWindowGTK::GetScrollPos( int orient ) const
{
wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
-
wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
- if (orient == wxHORIZONTAL)
- return (int)(m_hAdjust->value+0.5);
- else
- return (int)(m_vAdjust->value+0.5);
+ const int i = orient == wxVERTICAL;
+ return int(m_scrollBar[i]->adjustment->value + 0.5);
}
int wxWindowGTK::GetScrollRange( int orient ) const
{
wxCHECK_MSG( m_widget != NULL, 0, wxT("invalid window") );
-
wxCHECK_MSG( m_wxwindow != NULL, 0, wxT("window needs client area for scrolling") );
- if (orient == wxHORIZONTAL)
- return (int)(m_hAdjust->upper+0.5);
- else
- return (int)(m_vAdjust->upper+0.5);
+ const int i = orient == wxVERTICAL;
+ return int(m_scrollBar[i]->adjustment->upper);
+}
+
+// Determine if increment is the same as +/-x, allowing for some small
+// difference due to possible inexactness in floating point arithmetic
+static inline bool IsScrollIncrement(double increment, double x)
+{
+ wxASSERT(increment > 0);
+ const double tolerance = 1.0 / 1024;
+ return fabs(increment - fabs(x)) < tolerance;
+}
+
+wxEventType wxWindowGTK::GetScrollEventType(GtkRange* range)
+{
+ DEBUG_MAIN_THREAD
+
+ if (g_isIdle)
+ wxapp_install_idle_handler();
+
+ wxASSERT(range == m_scrollBar[0] || range == m_scrollBar[1]);
+
+ const int barIndex = range == m_scrollBar[1];
+ GtkAdjustment* adj = range->adjustment;
+ const int value = int(adj->value + 0.5);
+ // save previous position
+ const double oldPos = m_scrollPos[barIndex];
+ // update current position
+ m_scrollPos[barIndex] = adj->value;
+ // If event should be ignored, or integral position has not changed
+ if (!m_hasVMT || g_blockEventsOnDrag || value == int(oldPos + 0.5))
+ {
+ return wxEVT_NULL;
+ }
+
+ wxEventType eventType = wxEVT_SCROLL_THUMBTRACK;
+ if (!m_isScrolling)
+ {
+ // Difference from last change event
+ const double diff = adj->value - oldPos;
+ const bool isDown = diff > 0;
+
+ if (IsScrollIncrement(adj->step_increment, diff))
+ {
+ eventType = isDown ? wxEVT_SCROLL_LINEDOWN : wxEVT_SCROLL_LINEUP;
+ }
+ else if (IsScrollIncrement(adj->page_increment, diff))
+ {
+ eventType = isDown ? wxEVT_SCROLL_PAGEDOWN : wxEVT_SCROLL_PAGEUP;
+ }
+ else if (m_mouseButtonDown)
+ {
+ // Assume track event
+ m_isScrolling = true;
+ }
+ }
+ return eventType;
}
void wxWindowGTK::ScrollWindow( int dx, int dy, const wxRect* WXUNUSED(rect) )
projects / wxWidgets.git / blobdiff