static gboolean gtkCanvasExposeEvent(GtkWidget *widget, GdkEventExpose *evt, Ihandle *ih)
#endif
{
IFnff cb = (IFnff)IupGetCallback(ih,"ACTION");
if (cb && !(ih->data->inside_resize))
{
if (!iupAttribGet(ih, "_IUPGTK_NO_BGCOLOR"))
gtkCanvasSetBgColorAttrib(ih, iupAttribGetStr(ih, "BGCOLOR")); /* reset to update window attributes */
#if GTK_CHECK_VERSION(3, 0, 0)
{
GdkRectangle rect;
gdk_cairo_get_clip_rectangle(cr, &rect);
iupAttribSetStrf(ih, "CLIPRECT", "%d %d %d %d", rect.x, rect.y, rect.x+rect.width-1, rect.y+rect.height-1);
iupAttribSetStr(ih, "CAIRO_CR", (char*)cr);
}
#else
iupAttribSetStrf(ih, "CLIPRECT", "%d %d %d %d", evt->area.x, evt->area.y, evt->area.x+evt->area.width-1, evt->area.y+evt->area.height-1);
#endif
cb(ih,ih->data->posx,ih->data->posy);
iupAttribSetStr(ih, "CLIPRECT", NULL);
iupAttribSetStr(ih, "CAIRO_CR", NULL);
}
(void)widget;
return FALSE;
}
static gboolean gtkCanvasExposeEvent(GtkWidget *widget, GdkEventExpose *evt, Ihandle *ih)
{
IFnff cb = (IFnff)IupGetCallback(ih,"ACTION");
if (cb)
{
if (!iupAttribGet(ih, "_IUPGTK_NO_BGCOLOR"))
gtkCanvasSetBgColorAttrib(ih, iupAttribGetStr(ih, "BGCOLOR")); /* reset to update window attributes */
iupAttribSetStrf(ih, "CLIPRECT", "%d %d %d %d", evt->area.x, evt->area.y, evt->area.x+evt->area.width-1, evt->area.y+evt->area.height-1);
cb(ih,ih->data->posx,ih->data->posy);
iupAttribSetStr(ih, "CLIPRECT", NULL);
}
(void)widget;
return TRUE; /* stop other handlers */
}
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 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;
}
