scintillagtk.cxx.svn-base

Notepad++ is a generic source code editor (it tries to be anyway) and Notepad replacement written in

		GdkIMStyle style;
		GdkIMStyle supported_style = (GdkIMStyle) (GDK_IM_PREEDIT_NONE |
		                             GDK_IM_PREEDIT_NOTHING |
		                             GDK_IM_PREEDIT_POSITION |
		                             GDK_IM_STATUS_NONE |
		                             GDK_IM_STATUS_NOTHING);

		if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)
			supported_style = (GdkIMStyle) ((int) supported_style & ~GDK_IM_PREEDIT_POSITION);

		attr->style = style = gdk_im_decide_style(supported_style);
		attr->client_window = widget->window;

		if ((colormap = gtk_widget_get_colormap (widget)) != gtk_widget_get_default_colormap ()) {
			attrmask = (GdkICAttributesType) ((int) attrmask | GDK_IC_PREEDIT_COLORMAP);
			attr->preedit_colormap = colormap;
		}

		switch (style & GDK_IM_PREEDIT_MASK) {
		case GDK_IM_PREEDIT_POSITION:
			if (widget->style && widget->style->font->type != GDK_FONT_FONTSET)	{
				g_warning("over-the-spot style requires fontset");
				break;
			}

			attrmask = (GdkICAttributesType) ((int) attrmask | GDK_IC_PREEDIT_POSITION_REQ);
			gdk_window_get_size(widget->window, &width, &height);
			attr->spot_location.x = 0;
			attr->spot_location.y = height;
			attr->preedit_area.x = 0;
			attr->preedit_area.y = 0;
			attr->preedit_area.width = width;
			attr->preedit_area.height = height;
			attr->preedit_fontset = widget->style->font;

			break;
		}
		ic = gdk_ic_new(attr, attrmask);

		if (ic == NULL) {
			g_warning("Can't create input context.");
		} else {
			mask = gdk_window_get_events(widget->window);
			mask = (GdkEventMask) ((int) mask | gdk_ic_get_events(ic));
			gdk_window_set_events(widget->window, mask);

			if (GTK_WIDGET_HAS_FOCUS(widget))
				gdk_im_begin(ic, widget->window);
		}
	}
#else
	wPreedit = gtk_window_new(GTK_WINDOW_POPUP);
	wPreeditDraw = gtk_drawing_area_new();
	GtkWidget *predrw = PWidget(wPreeditDraw);	// No code inside the G_OBJECT macro
	g_signal_connect(G_OBJECT(predrw), "expose_event",
			   G_CALLBACK(ExposePreedit), this);
	gtk_container_add(GTK_CONTAINER(PWidget(wPreedit)), predrw);
	gtk_widget_realize(PWidget(wPreedit));
	gtk_widget_realize(predrw);
	gtk_widget_show(predrw);

	im_context = gtk_im_multicontext_new();
	g_signal_connect(G_OBJECT(im_context), "commit",
			 G_CALLBACK(Commit), this);
	g_signal_connect(G_OBJECT(im_context), "preedit_changed",
			 G_CALLBACK(PreeditChanged), this);
	gtk_im_context_set_client_window(im_context, widget->window);
#endif
#endif
	GtkWidget *widtxt = PWidget(wText);	//	// No code inside the G_OBJECT macro
#if GLIB_MAJOR_VERSION < 2
	gtk_signal_connect_after(GTK_OBJECT(widtxt), "style_set",
				 GtkSignalFunc(ScintillaGTK::StyleSetText), NULL);
	gtk_signal_connect_after(GTK_OBJECT(widtxt), "realize",
				 GtkSignalFunc(ScintillaGTK::RealizeText), NULL);
#else
	g_signal_connect_after(G_OBJECT(widtxt), "style_set",
				 G_CALLBACK(ScintillaGTK::StyleSetText), NULL);
	g_signal_connect_after(G_OBJECT(widtxt), "realize",
				 G_CALLBACK(ScintillaGTK::RealizeText), NULL);
#endif
	gtk_widget_realize(widtxt);
	gtk_widget_realize(PWidget(scrollbarv));
	gtk_widget_realize(PWidget(scrollbarh));
}

void ScintillaGTK::Realize(GtkWidget *widget) {
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	sciThis->RealizeThis(widget);
}

void ScintillaGTK::UnRealizeThis(GtkWidget *widget) {
	if (GTK_WIDGET_MAPPED(widget)) {
		gtk_widget_unmap(widget);
	}
	GTK_WIDGET_UNSET_FLAGS(widget, GTK_REALIZED);
	gtk_widget_unrealize(PWidget(wText));
	gtk_widget_unrealize(PWidget(scrollbarv));
	gtk_widget_unrealize(PWidget(scrollbarh));
#ifdef INTERNATIONAL_INPUT
#if GTK_MAJOR_VERSION < 2
	if (ic) {
		gdk_ic_destroy(ic);
		ic = NULL;
	}
	if (ic_attr) {
		gdk_ic_attr_destroy(ic_attr);
		ic_attr = NULL;
	}
#else
	gtk_widget_unrealize(PWidget(wPreedit));
	gtk_widget_unrealize(PWidget(wPreeditDraw));
	g_object_unref(im_context);
	im_context = NULL;
#endif
#endif
	if (GTK_WIDGET_CLASS(parentClass)->unrealize)
		GTK_WIDGET_CLASS(parentClass)->unrealize(widget);

	Finalise();
}

void ScintillaGTK::UnRealize(GtkWidget *widget) {
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	sciThis->UnRealizeThis(widget);
}

static void MapWidget(GtkWidget *widget) {
	if (widget &&
	        GTK_WIDGET_VISIBLE(widget) &&
	        !GTK_WIDGET_MAPPED(widget)) {
		gtk_widget_map(widget);
	}
}

void ScintillaGTK::MapThis() {
	//Platform::DebugPrintf("ScintillaGTK::map this\n");
	GTK_WIDGET_SET_FLAGS(PWidget(wMain), GTK_MAPPED);
	MapWidget(PWidget(wText));
	MapWidget(PWidget(scrollbarh));
	MapWidget(PWidget(scrollbarv));
	wMain.SetCursor(Window::cursorArrow);
	scrollbarv.SetCursor(Window::cursorArrow);
	scrollbarh.SetCursor(Window::cursorArrow);
	ChangeSize();
	gdk_window_show(PWidget(wMain)->window);
}

void ScintillaGTK::Map(GtkWidget *widget) {
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	sciThis->MapThis();
}

void ScintillaGTK::UnMapThis() {
	//Platform::DebugPrintf("ScintillaGTK::unmap this\n");
	GTK_WIDGET_UNSET_FLAGS(PWidget(wMain), GTK_MAPPED);
	DropGraphics();
	gdk_window_hide(PWidget(wMain)->window);
	gtk_widget_unmap(PWidget(wText));
	gtk_widget_unmap(PWidget(scrollbarh));
	gtk_widget_unmap(PWidget(scrollbarv));
}

void ScintillaGTK::UnMap(GtkWidget *widget) {
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	sciThis->UnMapThis();
}

void ScintillaGTK::ForAll(GtkCallback callback, gpointer callback_data) {
	(*callback) (PWidget(wText), callback_data);
	(*callback) (PWidget(scrollbarv), callback_data);
	(*callback) (PWidget(scrollbarh), callback_data);
}

void ScintillaGTK::MainForAll(GtkContainer *container, gboolean include_internals, GtkCallback callback, gpointer callback_data) {
	ScintillaGTK *sciThis = ScintillaFromWidget((GtkWidget *)container);

	if (callback != NULL && include_internals) {
		sciThis->ForAll(callback, callback_data);
	}
}

#ifdef INTERNATIONAL_INPUT
#if GTK_MAJOR_VERSION < 2
gint ScintillaGTK::CursorMoved(GtkWidget *widget, int xoffset, int yoffset, ScintillaGTK *sciThis) {
	if (GTK_WIDGET_HAS_FOCUS(widget) && gdk_im_ready() && sciThis->ic &&
	        (gdk_ic_get_style(sciThis->ic) & GDK_IM_PREEDIT_POSITION)) {
		sciThis->ic_attr->spot_location.x = xoffset;
		sciThis->ic_attr->spot_location.y = yoffset;
		gdk_ic_set_attr(sciThis->ic, sciThis->ic_attr, GDK_IC_SPOT_LOCATION);
	}
	return FALSE;
}
#else
gint ScintillaGTK::CursorMoved(GtkWidget *, int xoffset, int yoffset, ScintillaGTK *sciThis) {
	GdkRectangle area;
	area.x = xoffset;
	area.y = yoffset;
	area.width = 1;
	area.height = 1;
	gtk_im_context_set_cursor_location(sciThis->im_context, &area);
	return FALSE;
}
#endif
#else
gint ScintillaGTK::CursorMoved(GtkWidget *, int, int, ScintillaGTK *) {
	return FALSE;
}
#endif

gint ScintillaGTK::FocusIn(GtkWidget *widget, GdkEventFocus * /*event*/) {
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	//Platform::DebugPrintf("ScintillaGTK::focus in %x\n", sciThis);
	GTK_WIDGET_SET_FLAGS(widget, GTK_HAS_FOCUS);
	sciThis->SetFocusState(true);

#ifdef INTERNATIONAL_INPUT
#if GTK_MAJOR_VERSION < 2
	if (sciThis->ic)
		gdk_im_begin(sciThis->ic, widget->window);
#else
	if (sciThis->im_context != NULL) {
		gchar *str = NULL;
		gint cursor_pos;

		gtk_im_context_get_preedit_string(sciThis->im_context, &str, NULL, &cursor_pos);
		if (PWidget(sciThis->wPreedit) != NULL) {
			if (strlen(str) > 0) {
				gtk_widget_show(PWidget(sciThis->wPreedit));
			} else {
				gtk_widget_hide(PWidget(sciThis->wPreedit));
			}
		}
		g_free(str);
		gtk_im_context_focus_in(sciThis->im_context);
	}
#endif
#endif

	return FALSE;
}

gint ScintillaGTK::FocusOut(GtkWidget *widget, GdkEventFocus * /*event*/) {
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	//Platform::DebugPrintf("ScintillaGTK::focus out %x\n", sciThis);
	GTK_WIDGET_UNSET_FLAGS(widget, GTK_HAS_FOCUS);
	sciThis->SetFocusState(false);

#ifdef INTERNATIONAL_INPUT
#if GTK_MAJOR_VERSION < 2
	gdk_im_end();
#else
	if (PWidget(sciThis->wPreedit) != NULL)
		gtk_widget_hide(PWidget(sciThis->wPreedit));
	if (sciThis->im_context != NULL)
		gtk_im_context_focus_out(sciThis->im_context);
#endif
#endif

	return FALSE;
}

void ScintillaGTK::SizeRequest(GtkWidget *widget, GtkRequisition *requisition) {
	requisition->width = 600;
	requisition->height = gdk_screen_height();
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	GtkRequisition child_requisition;
	gtk_widget_size_request(PWidget(sciThis->scrollbarh), &child_requisition);
	gtk_widget_size_request(PWidget(sciThis->scrollbarv), &child_requisition);
}

void ScintillaGTK::SizeAllocate(GtkWidget *widget, GtkAllocation *allocation) {
	widget->allocation = *allocation;
	ScintillaGTK *sciThis = ScintillaFromWidget(widget);
	if (GTK_WIDGET_REALIZED(widget))
		gdk_window_move_resize(widget->window,
		                       widget->allocation.x,
		                       widget->allocation.y,
		                       widget->allocation.width,
		                       widget->allocation.height);

	sciThis->Resize(allocation->width, allocation->height);

#ifdef INTERNATIONAL_INPUT
#if GTK_MAJOR_VERSION < 2
	if (sciThis->ic && (gdk_ic_get_style(sciThis->ic) & GDK_IM_PREEDIT_POSITION)) {
		gint width, height;

		gdk_window_get_size(widget->window, &width, &height);
		sciThis->ic_attr->preedit_area.width = width;
		sciThis->ic_attr->preedit_area.height = height;

		gdk_ic_set_attr(sciThis->ic, sciThis->ic_attr, GDK_IC_PREEDIT_AREA);
	}
#endif
#endif
}

void ScintillaGTK::Initialise() {
	//Platform::DebugPrintf("ScintillaGTK::Initialise\n");
	parentClass = reinterpret_cast<GtkWidgetClass *>(
	                  gtk_type_class(gtk_container_get_type()));

	GTK_WIDGET_SET_FLAGS(PWidget(wMain), GTK_CAN_FOCUS);
	GTK_WIDGET_SET_FLAGS(GTK_WIDGET(PWidget(wMain)), GTK_SENSITIVE);
	gtk_widget_set_events(PWidget(wMain),
	                      GDK_EXPOSURE_MASK
	                      | GDK_STRUCTURE_MASK
	                      | GDK_KEY_PRESS_MASK
	                      | GDK_KEY_RELEASE_MASK
	                      | GDK_FOCUS_CHANGE_MASK
	                      | GDK_LEAVE_NOTIFY_MASK
	                      | GDK_BUTTON_PRESS_MASK
	                      | GDK_BUTTON_RELEASE_MASK
	                      | GDK_POINTER_MOTION_MASK
	                      | GDK_POINTER_MOTION_HINT_MASK);

	wText = gtk_drawing_area_new();
	gtk_widget_set_parent(PWidget(wText), PWidget(wMain));
	GtkWidget *widtxt = PWidget(wText);	// No code inside the G_OBJECT macro
	gtk_widget_show(widtxt);
#if GLIB_MAJOR_VERSION < 2
	gtk_signal_connect(GTK_OBJECT(widtxt), "expose_event",
			   GtkSignalFunc(ScintillaGTK::ExposeText), this);
#else
	g_signal_connect(G_OBJECT(widtxt), "expose_event",
			   G_CALLBACK(ScintillaGTK::ExposeText), this);
#endif
	gtk_widget_set_events(widtxt, GDK_EXPOSURE_MASK);
#if GTK_MAJOR_VERSION >= 2
	// Avoid background drawing flash
	gtk_widget_set_double_buffered(widtxt, FALSE);
#endif
	gtk_drawing_area_size(GTK_DRAWING_AREA(widtxt),
	                      100,100);
	adjustmentv = gtk_adjustment_new(0.0, 0.0, 201.0, 1.0, 20.0, 20.0);
	scrollbarv = gtk_vscrollbar_new(GTK_ADJUSTMENT(adjustmentv));
	GTK_WIDGET_UNSET_FLAGS(PWidget(scrollbarv), GTK_CAN_FOCUS);
#if GLIB_MAJOR_VERSION < 2
	gtk_signal_connect(adjustmentv, "value_changed",
			   GtkSignalFunc(ScrollSignal), this);
#else
	g_signal_connect(G_OBJECT(adjustmentv), "value_changed",
			   G_CALLBACK(ScrollSignal), this);
#endif
	gtk_widget_set_parent(PWidget(scrollbarv), PWidget(wMain));
	gtk_widget_show(PWidget(scrollbarv));

	adjustmenth = gtk_adjustment_new(0.0, 0.0, 101.0, 1.0, 20.0, 20.0);
	scrollbarh = gtk_hscrollbar_new(GTK_ADJUSTMENT(adjustmenth));
	GTK_WIDGET_UNSET_FLAGS(PWidget(scrollbarh), GTK_CAN_FOCUS);
#if GLIB_MAJOR_VERSION < 2
	gtk_signal_connect(adjustmenth, "value_changed",
			   GtkSignalFunc(ScrollHSignal), this);
#else
	g_signal_connect(G_OBJECT(adjustmenth), "value_changed",
			   G_CALLBACK(ScrollHSignal), this);
#endif
	gtk_widget_set_parent(PWidget(scrollbarh), PWidget(wMain));
	gtk_widget_show(PWidget(scrollbarh));

	gtk_widget_grab_focus(PWidget(wMain));

	gtk_selection_add_targets(GTK_WIDGET(PWidget(wMain)), GDK_SELECTION_PRIMARY,
	                          clipboardTargets, nClipboardTargets);

#ifndef USE_GTK_CLIPBOARD
	gtk_selection_add_targets(GTK_WIDGET(PWidget(wMain)), atomClipboard,
	                          clipboardTargets, nClipboardTargets);
#endif

	gtk_drag_dest_set(GTK_WIDGET(PWidget(wMain)),
	                  GTK_DEST_DEFAULT_ALL, clipboardTargets, nClipboardTargets,
	                  static_cast<GdkDragAction>(GDK_ACTION_COPY | GDK_ACTION_MOVE));

	SetTicking(true);
}

void ScintillaGTK::Finalise() {
	SetTicking(false);
	ScintillaBase::Finalise();
}

void ScintillaGTK::DisplayCursor(Window::Cursor c) {
	if (cursorMode == SC_CURSORNORMAL)
		wText.SetCursor(c);
	else
		wText.SetCursor(static_cast<Window::Cursor>(cursorMode));
}

void ScintillaGTK::StartDrag() {
	dragWasDropped = false;
	static const GtkTargetEntry targets[] = {
	    { "UTF8_STRING", 0, TARGET_UTF8_STRING },
	    { "STRING", 0, TARGET_STRING },
	};
	static const gint n_targets = sizeof(targets) / sizeof(targets[0]);
	GtkTargetList *tl = gtk_target_list_new(targets, n_targets);