static int iMatrixSetFitToSizeAttrib(Ihandle* ih, const char* value)
{
int w, h;
int sb_w = 0, sb_h = 0;
if (!ih->handle)
ih->data->canvas.sb = iupBaseGetScrollbar(ih);
/* add scrollbar */
if (ih->data->canvas.sb)
{
int sb_size = iupdrvGetScrollbarSize();
if (ih->data->canvas.sb & IUP_SB_HORIZ)
sb_h += sb_size; /* sb horizontal affects vertical size */
if (ih->data->canvas.sb & IUP_SB_VERT)
sb_w += sb_size; /* sb vertical affects horizontal size */
}
IupGetIntInt(ih, "RASTERSIZE", &w, &h);
if (iupStrEqualNoCase(value, "LINES"))
iMatrixFitLines(ih, h-sb_h);
else if (iupStrEqualNoCase(value, "COLUMNS"))
iMatrixFitColumns(ih, w-sb_w);
else
{
iMatrixFitLines(ih, h-sb_h);
iMatrixFitColumns(ih, w-sb_w);
}
ih->data->need_calcsize = 1;
if (ih->handle)
iupMatrixDraw(ih, 1);
return 0;
}
static void iMatrixComputeNaturalSizeMethod(Ihandle* ih, int *w, int *h, int *expand)
{
int natural_w = 0, natural_h = 0;
(void)expand; /* unset if not a container */
if (!ih->handle)
ih->data->canvas.sb = iupBaseGetScrollbar(ih);
/* add scrollbar */
if (ih->data->canvas.sb)
{
int sb_size = iupdrvGetScrollbarSize();
if (ih->data->canvas.sb & IUP_SB_HORIZ)
natural_h += sb_size; /* sb horizontal affects vertical size */
if (ih->data->canvas.sb & IUP_SB_VERT)
natural_w += sb_size; /* sb vertical affects horizontal size */
}
*w = natural_w + iMatrixGetNaturalWidth(ih);
*h = natural_h + iMatrixGetNaturalHeight(ih);
}
static int gtkCanvasMapMethod(Ihandle* ih)
{
GtkWidget* sb_win;
#if !GTK_CHECK_VERSION(3, 0, 0)
void* visual;
#endif
if (!ih->parent)
return IUP_ERROR;
ih->data->sb = iupBaseGetScrollbar(ih);
#if !GTK_CHECK_VERSION(3, 0, 0)
visual = (void*)IupGetAttribute(ih, "VISUAL"); /* defined by the OpenGL Canvas in X11 or NULL */
if (visual)
iupgtkPushVisualAndColormap(visual, (void*)iupAttribGet(ih, "COLORMAP"));
#endif
ih->handle = iupgtkNativeContainerNew(); /* canvas is also a container */
#if !GTK_CHECK_VERSION(3, 0, 0)
if (visual)
gtk_widget_pop_colormap();
#endif
if (!ih->handle)
return IUP_ERROR;
/* CD will NOT work properly without this, must use always the CD-GDK driver */
iupgtkNativeContainerSetHasWindow(ih->handle, TRUE);
sb_win = iupgtkNativeContainerNew();
if (!sb_win)
return IUP_ERROR;
iupgtkNativeContainerAdd(sb_win, ih->handle);
gtk_widget_show(sb_win);
iupAttribSetStr(ih, "_IUP_EXTRAPARENT", (char*)sb_win);
/* add to the parent, all GTK controls must call this. */
iupgtkAddToParent(ih);
g_signal_connect(G_OBJECT(ih->handle), "focus-in-event", G_CALLBACK(iupgtkFocusInOutEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "focus-out-event", G_CALLBACK(iupgtkFocusInOutEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "key-press-event", G_CALLBACK(iupgtkKeyPressEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "key-release-event", G_CALLBACK(iupgtkKeyReleaseEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "enter-notify-event", G_CALLBACK(iupgtkEnterLeaveEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "leave-notify-event", G_CALLBACK(iupgtkEnterLeaveEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "show-help", G_CALLBACK(iupgtkShowHelp), ih);
#if GTK_CHECK_VERSION(3, 0, 0)
g_signal_connect(G_OBJECT(ih->handle), "draw", G_CALLBACK(gtkCanvasDraw), ih);
#else
g_signal_connect(G_OBJECT(ih->handle), "expose-event", G_CALLBACK(gtkCanvasExposeEvent), ih);
#endif
g_signal_connect(G_OBJECT(ih->handle), "button-press-event", G_CALLBACK(gtkCanvasButtonEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "button-release-event",G_CALLBACK(gtkCanvasButtonEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "motion-notify-event",G_CALLBACK(iupgtkMotionNotifyEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "scroll-event",G_CALLBACK(gtkCanvasScrollEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "size-allocate", G_CALLBACK(gtkCanvasSizeAllocate), ih);
/* To receive mouse events on a drawing area, you will need to enable them. */
gtk_widget_add_events(ih->handle, GDK_EXPOSURE_MASK|
GDK_POINTER_MOTION_MASK|GDK_POINTER_MOTION_HINT_MASK|
GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK|GDK_BUTTON_MOTION_MASK|
GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK|
GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK|
GDK_FOCUS_CHANGE_MASK|GDK_STRUCTURE_MASK);
/* To receive keyboard events, you will need to set the GTK_CAN_FOCUS flag on the drawing area. */
if (ih->iclass->is_interactive)
{
if (iupAttribGetBoolean(ih, "CANFOCUS"))
iupgtkSetCanFocus(ih->handle, 1);
}
if (iupAttribGetBoolean(ih, "BORDER"))
{
iupAttribSetInt(ih, "BORDERWIDTH", 1);
#if GTK_CHECK_VERSION(3, 0, 0)
g_signal_connect(G_OBJECT(sb_win), "draw", G_CALLBACK(gtkCanvasBorderDraw), NULL);
#else
g_signal_connect(G_OBJECT(sb_win), "expose-event", G_CALLBACK(gtkCanvasBorderExposeEvent), NULL);
#endif
}
gtk_widget_realize(sb_win);
if (ih->data->sb & IUP_SB_HORIZ)
{
#if GTK_CHECK_VERSION(3, 0, 0)
GtkWidget* sb_horiz = gtk_scrollbar_new(GTK_ORIENTATION_HORIZONTAL, NULL);
#else
GtkWidget* sb_horiz = gtk_hscrollbar_new(NULL);
#endif
iupgtkNativeContainerAdd(sb_win, sb_horiz);
gtk_widget_show(sb_horiz);
gtk_widget_realize(sb_horiz);
g_signal_connect(G_OBJECT(sb_horiz), "change-value",G_CALLBACK(gtkCanvasScrollHorizChangeValue), ih);
g_signal_connect(G_OBJECT(gtk_range_get_adjustment(GTK_RANGE(sb_horiz))), "value-changed",G_CALLBACK(gtkCanvasAdjustHorizValueChanged), ih);
iupAttribSetStr(ih, "_IUPGTK_SBHORIZ", (char*)sb_horiz);
}
if (ih->data->sb & IUP_SB_VERT)
{
#if GTK_CHECK_VERSION(3, 0, 0)
GtkWidget* sb_vert = gtk_scrollbar_new(GTK_ORIENTATION_VERTICAL, NULL);
#else
GtkWidget* sb_vert = gtk_vscrollbar_new(NULL);
#endif
iupgtkNativeContainerAdd(sb_win, sb_vert);
gtk_widget_show(sb_vert);
gtk_widget_realize(sb_vert);
g_signal_connect(G_OBJECT(sb_vert), "change-value",G_CALLBACK(gtkCanvasScrollVertChangeValue), ih);
g_signal_connect(G_OBJECT(gtk_range_get_adjustment(GTK_RANGE(sb_vert))), "value-changed",G_CALLBACK(gtkCanvasAdjustVertValueChanged), ih);
iupAttribSetStr(ih, "_IUPGTK_SBVERT", (char*)sb_vert);
}
gtk_widget_realize(ih->handle);
/* configure for DRAG&DROP */
if (IupGetCallback(ih, "DROPFILES_CB"))
iupAttribSetStr(ih, "DROPFILESTARGET", "YES");
/* update a mnemonic in a label if necessary */
iupgtkUpdateMnemonic(ih);
/* force the update of BGCOLOR here, to let derived classes ignore it if ACTION is defined */
gtkCanvasSetBgColorAttrib(ih, iupAttribGetStr(ih, "BGCOLOR"));
return IUP_NOERROR;
}
static int winCanvasMapMethod(Ihandle* ih)
{
CLIENTCREATESTRUCT clientstruct;
void *clientdata = NULL;
char *classname;
DWORD dwStyle = WS_CHILD|WS_CLIPSIBLINGS,
dwExStyle = 0;
if (!ih->parent)
return IUP_ERROR;
if (ih->iclass->is_interactive)
{
if (iupAttribGetBoolean(ih, "CANFOCUS"))
dwStyle |= WS_TABSTOP;
}
if (ih->firstchild) /* can be a container */
iupwinGetNativeParentStyle(ih, &dwExStyle, &dwStyle);
if (iupAttribGetBoolean(ih, "BORDER"))
dwStyle |= WS_BORDER;
ih->data->sb = iupBaseGetScrollbar(ih);
if (ih->data->sb & IUP_SB_HORIZ)
dwStyle |= WS_HSCROLL;
if (ih->data->sb & IUP_SB_VERT)
dwStyle |= WS_VSCROLL;
if (iupAttribGetBoolean(ih, "MDICLIENT"))
{
/* creating a MDI Client that will be inside the MDI Frame,
it will work as parent of all MDI children */
Ihandle *winmenu = IupGetAttributeHandle(ih, "MDIMENU");
classname = "mdiclient";
dwStyle = WS_CHILD|WS_CLIPCHILDREN|WS_VSCROLL|WS_HSCROLL|MDIS_ALLCHILDSTYLES;
dwExStyle = WS_EX_CLIENTEDGE;
iupAttribSetStr(ih, "BORDER", "NO");
iupAttribSetStr(IupGetDialog(ih), "MDICLIENT_HANDLE", (char*)ih);
clientdata = &clientstruct;
clientstruct.hWindowMenu = winmenu? winmenu->handle: NULL;
/* The system increments the identifier
for each additional MDI child window the application creates,
and reassigns identifiers when the application
destroys a window to keep the range of identifiers contiguous. */
clientstruct.idFirstChild = IUP_MDI_FIRSTCHILD;
}
else
classname = "IupCanvas";
ih->serial = iupDialogGetChildId(ih);
ih->handle = CreateWindowEx(dwExStyle,/* extended style */
classname, /* window class */
NULL, /* title */
dwStyle, /* window style */
0, /* x-position */
0, /* y-position */
10, /* default width to avoid 0 */
10, /* default height to avoid 0 */
iupChildTreeGetNativeParentHandle(ih), /* window parent */
(HMENU)ih->serial, /* child identifier */
iupwin_hinstance, /* instance of app. */
clientdata);
if (!ih->handle)
return IUP_ERROR;
/* associate HWND with Ihandle*, all Win32 controls must call this. */
iupwinHandleAdd(ih, ih->handle);
if (iupAttribGetBoolean(ih, "MDICLIENT"))
iupwinChangeProc(ih, iupwinBaseWinProc);
else
IupSetCallback(ih, "_IUPWIN_OLDPROC_CB", (Icallback)DefWindowProc);
IupSetCallback(ih, "_IUPWIN_CTRLPROC_CB", (Icallback)winCanvasProc);
/* configure for DROP of files */
if (IupGetCallback(ih, "DROPFILES_CB"))
iupAttribSetStr(ih, "DROPFILESTARGET", "YES");
return IUP_NOERROR;
}
static int winCanvasMapMethod(Ihandle* ih)
{
CLIENTCREATESTRUCT clientstruct;
void *clientdata = NULL;
TCHAR *classname;
DWORD dwStyle = WS_CHILD|WS_CLIPSIBLINGS,
dwExStyle = 0;
if (!ih->parent)
return IUP_ERROR;
if (ih->iclass->is_interactive)
{
if (iupAttribGetBoolean(ih, "CANFOCUS"))
dwStyle |= WS_TABSTOP;
}
if (ih->firstchild) /* can be a container */
iupwinGetNativeParentStyle(ih, &dwExStyle, &dwStyle);
if (iupAttribGetBoolean(ih, "BORDER"))
dwStyle |= WS_BORDER;
ih->data->sb = iupBaseGetScrollbar(ih);
if (ih->data->sb & IUP_SB_HORIZ)
dwStyle |= WS_HSCROLL;
if (ih->data->sb & IUP_SB_VERT)
dwStyle |= WS_VSCROLL;
if (iupAttribGetBoolean(ih, "MDICLIENT"))
{
/* creating a MDI Client that will be inside the MDI Frame,
it will work as parent of all MDI children */
Ihandle *winmenu = IupGetAttributeHandle(ih, "MDIMENU");
classname = TEXT("mdiclient");
dwStyle = WS_CHILD|WS_CLIPCHILDREN|WS_VSCROLL|WS_HSCROLL|MDIS_ALLCHILDSTYLES;
dwExStyle = WS_EX_CLIENTEDGE;
iupAttribSet(ih, "BORDER", "NO");
iupAttribSet(IupGetDialog(ih), "MDICLIENT_HANDLE", (char*)ih);
clientdata = &clientstruct;
clientstruct.hWindowMenu = winmenu? winmenu->handle: NULL;
/* The system increments the identifier
for each additional MDI child window the application creates,
and reassigns identifiers when the application
destroys a window to keep the range of identifiers contiguous. */
clientstruct.idFirstChild = IUP_MDI_FIRSTCHILD;
}
else
classname = TEXT("IupCanvas");
if (!iupwinCreateWindow(ih, classname, dwExStyle, dwStyle, clientdata))
return IUP_ERROR;
IupSetCallback(ih, "_IUPWIN_CTRLMSGPROC_CB", (Icallback)winCanvasMsgProc);
/* configure for DROP of files */
if (IupGetCallback(ih, "DROPFILES_CB"))
iupAttribSet(ih, "DROPFILESTARGET", "YES");
winCanvasSetDXAttrib(ih, NULL);
winCanvasSetDYAttrib(ih, NULL);
return IUP_NOERROR;
}
static int motCanvasMapMethod(Ihandle* ih)
{
Widget sb_win;
char *visual;
int num_args = 0;
Arg args[20];
if (!ih->parent)
return IUP_ERROR;
ih->data->sb = iupBaseGetScrollbar(ih);
/*********************/
/* Create the parent */
/*********************/
iupMOT_SETARG(args, num_args, XmNmappedWhenManaged, False); /* not visible when managed */
iupMOT_SETARG(args, num_args, XmNshadowThickness, 0);
iupMOT_SETARG(args, num_args, XmNmarginWidth, 0);
iupMOT_SETARG(args, num_args, XmNmarginHeight, 0);
iupMOT_SETARG(args, num_args, XmNwidth, 100); /* set this to avoid size calculation problems */
iupMOT_SETARG(args, num_args, XmNheight, 100);
iupMOT_SETARG(args, num_args, XmNresizePolicy, XmRESIZE_NONE);
iupMOT_SETARG(args, num_args, XmNnavigationType, XmTAB_GROUP);
if (iupAttribGetBoolean(ih, "BORDER"))
{
iupMOT_SETARG(args, num_args, XmNborderWidth, 1);
iupMOT_SETARG(args, num_args, XmNborderColor, iupmotColorGetPixelStr("0 0 0"));
}
else
iupMOT_SETARG(args, num_args, XmNborderWidth, 0);
sb_win = XtCreateManagedWidget(
iupDialogGetChildIdStr(ih), /* child identifier */
xmBulletinBoardWidgetClass, /* widget class */
iupChildTreeGetNativeParentHandle(ih), /* widget parent */
args, num_args);
if (!sb_win)
return IUP_ERROR;
ih->serial = iupDialogGetChildId(ih); /* must be after using the string */
/****************************/
/* Create the drawing area */
/****************************/
num_args = 0;
iupMOT_SETARG(args, num_args, XmNmarginHeight, 0); /* no shadow margins */
iupMOT_SETARG(args, num_args, XmNmarginWidth, 0); /* no shadow margins */
iupMOT_SETARG(args, num_args, XmNshadowThickness, 0);
iupMOT_SETARG(args, num_args, XmNresizePolicy, XmRESIZE_NONE); /* no automatic resize of children */
if (ih->iclass->is_interactive)
{
iupMOT_SETARG(args, num_args, XmNnavigationType, XmTAB_GROUP); /* include in navigation */
if (iupAttribGetBoolean(ih, "CANFOCUS"))
iupMOT_SETARG(args, num_args, XmNtraversalOn, True);
else
iupMOT_SETARG(args, num_args, XmNtraversalOn, False);
}
else
{
iupMOT_SETARG(args, num_args, XmNnavigationType, XmNONE);
iupMOT_SETARG(args, num_args, XmNtraversalOn, False);
}
iupMOT_SETARG(args, num_args, XmNx, 0); /* x-position */
iupMOT_SETARG(args, num_args, XmNy, 0); /* y-position */
iupMOT_SETARG(args, num_args, XmNwidth, 10); /* default width to avoid 0 */
iupMOT_SETARG(args, num_args, XmNheight, 10); /* default height to avoid 0 */
visual = IupGetAttribute(ih, "VISUAL"); /* defined by the OpenGL Canvas or NULL */
if (visual)
{
Colormap colormap = (Colormap)iupAttribGet(ih, "COLORMAP");
if (colormap)
iupMOT_SETARG(args, num_args, XmNcolormap,colormap);
iupmotDialogSetVisual(ih, visual);
}
ih->handle = XtCreateManagedWidget(
"draw_area", /* child identifier */
xmDrawingAreaWidgetClass, /* widget class */
sb_win, /* widget parent */
args, num_args);
if (!ih->handle)
{
XtDestroyWidget(sb_win);
return IUP_ERROR;
}
if (visual)
iupmotDialogResetVisual(ih);
iupAttribSet(ih, "_IUP_EXTRAPARENT", (char*)sb_win);
{
XSetWindowAttributes attrs;
attrs.bit_gravity = ForgetGravity; /* For the DrawingArea widget gets Expose events when you resize it to be smaller. */
if (iupAttribGetBoolean(ih, "BACKINGSTORE"))
attrs.backing_store = WhenMapped;
else
attrs.backing_store = NotUseful;
XChangeWindowAttributes(iupmot_display, XtWindow(ih->handle), CWBitGravity|CWBackingStore, &attrs);
}
if (ih->data->sb & IUP_SB_HORIZ)
{
Widget sb_horiz = XtVaCreateManagedWidget("sb_horiz",
xmScrollBarWidgetClass, sb_win,
XmNorientation, XmHORIZONTAL,
XmNsliderMark, XmTHUMB_MARK,
XmNuserData, ih,
NULL);
XtAddCallback(sb_horiz, XmNvalueChangedCallback, motCanvasScrollbarCallback, (void*)IUP_SBPOSH);
XtAddCallback(sb_horiz, XmNdragCallback, motCanvasScrollbarCallback, (void*)IUP_SBDRAGH);
XtAddCallback(sb_horiz, XmNdecrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBLEFT);
XtAddCallback(sb_horiz, XmNincrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBRIGHT);
XtAddCallback(sb_horiz, XmNpageDecrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBPGLEFT);
XtAddCallback(sb_horiz, XmNpageIncrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBPGRIGHT);
iupAttribSet(ih, "_IUPMOT_SBHORIZ", (char*)sb_horiz);
}
if (ih->data->sb & IUP_SB_VERT)
{
Widget sb_vert = XtVaCreateManagedWidget("sb_vert",
xmScrollBarWidgetClass, sb_win,
XmNorientation, XmVERTICAL,
XmNsliderMark, XmTHUMB_MARK,
XmNuserData, ih,
NULL);
XtAddCallback(sb_vert, XmNvalueChangedCallback, motCanvasScrollbarCallback, (void*)IUP_SBPOSV);
XtAddCallback(sb_vert, XmNdragCallback, motCanvasScrollbarCallback, (void*)IUP_SBDRAGV);
XtAddCallback(sb_vert, XmNdecrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBUP);
XtAddCallback(sb_vert, XmNincrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBDN);
XtAddCallback(sb_vert, XmNpageDecrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBPGUP);
XtAddCallback(sb_vert, XmNpageIncrementCallback, motCanvasScrollbarCallback, (void*)IUP_SBPGDN);
iupAttribSet(ih, "_IUPMOT_SBVERT", (char*)sb_vert);
}
XtAddCallback(ih->handle, XmNhelpCallback, (XtCallbackProc)iupmotHelpCallback, (XtPointer)ih);
XtAddCallback(ih->handle, XmNexposeCallback, (XtCallbackProc)motCanvasExposeCallback, (XtPointer)ih);
XtAddCallback(ih->handle, XmNresizeCallback, (XtCallbackProc)motCanvasResizeCallback, (XtPointer)ih);
XtAddCallback(ih->handle, XmNinputCallback, (XtCallbackProc)motCanvasInputCallback, (XtPointer)ih);
XtAddEventHandler(ih->handle, EnterWindowMask, False,(XtEventHandler)iupmotEnterLeaveWindowEvent, (XtPointer)ih);
XtAddEventHandler(ih->handle, LeaveWindowMask, False,(XtEventHandler)iupmotEnterLeaveWindowEvent, (XtPointer)ih);
XtAddEventHandler(ih->handle, FocusChangeMask, False,(XtEventHandler)iupmotFocusChangeEvent, (XtPointer)ih);
XtAddEventHandler(ih->handle, KeyPressMask, False, (XtEventHandler)iupmotKeyPressEvent, (XtPointer)ih);
XtAddEventHandler(ih->handle, KeyReleaseMask, False, (XtEventHandler)iupmotCanvasKeyReleaseEvent, (XtPointer)ih);
XtAddEventHandler(ih->handle, PointerMotionMask, False, (XtEventHandler)iupmotPointerMotionEvent, (XtPointer)ih);
/* initialize the widget */
XtRealizeWidget(sb_win);
motCanvasSetDXAttrib(ih, NULL);
motCanvasSetDYAttrib(ih, NULL);
return IUP_NOERROR;
}
static int gtkCanvasMapMethod(Ihandle* ih)
{
GtkScrolledWindow* scrolled_window;
void* visual;
if (!ih->parent)
return IUP_ERROR;
ih->data->sb = iupBaseGetScrollbar(ih);
visual = (void*)IupGetAttribute(ih, "VISUAL"); /* defined by the OpenGL Canvas in X11 or NULL */
if (visual)
iupgtkPushVisualAndColormap(visual, (void*)iupAttribGet(ih, "COLORMAP"));
ih->handle = gtk_drawing_area_new();
if (visual)
gtk_widget_pop_colormap();
if (!ih->handle)
return IUP_ERROR;
#if GTK_CHECK_VERSION(2, 18, 0)
/* CD will NOT work properly without this, must use always the CD-GDK driver */
gtk_widget_set_has_window(ih->handle, TRUE);
#endif
scrolled_window = (GtkScrolledWindow*)gtk_scrolled_window_new(NULL, NULL);
if (!scrolled_window)
return IUP_ERROR;
{
/* to avoid the "cannot add non scrollable widget" warning */
#if GTK_CHECK_VERSION(2, 6, 0)
GLogFunc def_func = g_log_set_default_handler(gtkCanvasDummyLogFunc, NULL);
#endif
gtk_container_add((GtkContainer*)scrolled_window, ih->handle);
#if GTK_CHECK_VERSION(2, 6, 0)
g_log_set_default_handler(def_func, NULL);
#endif
}
gtk_widget_show((GtkWidget*)scrolled_window);
iupAttribSetStr(ih, "_IUP_EXTRAPARENT", (char*)scrolled_window);
/* add to the parent, all GTK controls must call this. */
iupgtkBaseAddToParent(ih);
g_signal_connect(G_OBJECT(ih->handle), "focus-in-event", G_CALLBACK(iupgtkFocusInOutEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "focus-out-event", G_CALLBACK(iupgtkFocusInOutEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "key-press-event", G_CALLBACK(iupgtkKeyPressEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "key-release-event", G_CALLBACK(iupgtkKeyReleaseEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "enter-notify-event", G_CALLBACK(iupgtkEnterLeaveEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "leave-notify-event", G_CALLBACK(iupgtkEnterLeaveEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "show-help", G_CALLBACK(iupgtkShowHelp), ih);
g_signal_connect(G_OBJECT(ih->handle), "expose-event", G_CALLBACK(gtkCanvasExposeEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "button-press-event", G_CALLBACK(gtkCanvasButtonEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "button-release-event",G_CALLBACK(gtkCanvasButtonEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "motion-notify-event",G_CALLBACK(iupgtkMotionNotifyEvent), ih);
g_signal_connect(G_OBJECT(ih->handle), "scroll-event",G_CALLBACK(gtkCanvasScrollEvent), ih);
#if GTK_CHECK_VERSION(2, 8, 0)
g_signal_connect(G_OBJECT(gtk_scrolled_window_get_hscrollbar(scrolled_window)), "change-value",G_CALLBACK(gtkCanvasHChangeValue), ih);
g_signal_connect(G_OBJECT(gtk_scrolled_window_get_vscrollbar(scrolled_window)), "change-value",G_CALLBACK(gtkCanvasVChangeValue), ih);
#endif
/* To receive mouse events on a drawing area, you will need to enable them. */
gtk_widget_add_events(ih->handle, GDK_EXPOSURE_MASK|
GDK_POINTER_MOTION_MASK|GDK_POINTER_MOTION_HINT_MASK|
GDK_BUTTON_PRESS_MASK|GDK_BUTTON_RELEASE_MASK|GDK_BUTTON_MOTION_MASK|
GDK_KEY_PRESS_MASK|GDK_KEY_RELEASE_MASK|
GDK_ENTER_NOTIFY_MASK|GDK_LEAVE_NOTIFY_MASK|
GDK_FOCUS_CHANGE_MASK|GDK_STRUCTURE_MASK);
/* To receive keyboard events, you will need to set the GTK_CAN_FOCUS flag on the drawing area. */
if (ih->iclass->is_interactive)
{
if (iupAttribGetBoolean(ih, "CANFOCUS"))
iupgtkSetCanFocus(ih->handle, 1);
}
if (iupAttribGetBoolean(ih, "BORDER"))
gtk_scrolled_window_set_shadow_type(scrolled_window, GTK_SHADOW_IN);
else
gtk_scrolled_window_set_shadow_type(scrolled_window, GTK_SHADOW_NONE);
gtk_widget_realize((GtkWidget*)scrolled_window);
gtk_widget_realize(ih->handle);
/* must be connected after realize or a RESIZE_CB will happen before MAP_CB
works only for the GtkDrawingArea. */
g_signal_connect(G_OBJECT(ih->handle), "configure-event", G_CALLBACK(gtkCanvasConfigureEvent), ih);
iupAttribSetStr(ih, "_IUP_GTK_FIRST_RESIZE", "1");
/* configure for DRAG&DROP */
if (IupGetCallback(ih, "DROPFILES_CB"))
iupAttribSetStr(ih, "DRAGDROP", "YES");
/* update a mnemonic in a label if necessary */
iupgtkUpdateMnemonic(ih);
/* configure scrollbar */
if (ih->data->sb)
{
GtkPolicyType hscrollbar_policy = GTK_POLICY_NEVER, vscrollbar_policy = GTK_POLICY_NEVER;
if (ih->data->sb & IUP_SB_HORIZ)
hscrollbar_policy = GTK_POLICY_AUTOMATIC;
if (ih->data->sb & IUP_SB_VERT)
vscrollbar_policy = GTK_POLICY_AUTOMATIC;
gtk_scrolled_window_set_policy(scrolled_window, hscrollbar_policy, vscrollbar_policy);
}
else
gtk_scrolled_window_set_policy(scrolled_window, GTK_POLICY_NEVER, GTK_POLICY_NEVER);
/* force the update of BGCOLOR here, to let derived classes ignore it if ACTION is defined */
gtkCanvasSetBgColorAttrib(ih, iupAttribGetStr(ih, "BGCOLOR"));
return IUP_NOERROR;
}