88 lines
3.2 KiB
C++
88 lines
3.2 KiB
C++
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
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/*
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* This file is part of the LibreOffice project.
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*
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* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/.
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*/
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#include "notifyinglayout.hxx"
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struct _NotifyingLayout
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{
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GtkLayoutManager parent_instance;
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GtkWidget* m_pWidget;
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GtkLayoutManager* m_pOrigManager;
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Link<void*, void> m_aLink;
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};
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G_DEFINE_TYPE(NotifyingLayout, notifying_layout, GTK_TYPE_LAYOUT_MANAGER)
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static void notifying_layout_measure(GtkLayoutManager* pLayoutManager, GtkWidget* widget,
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GtkOrientation orientation, int for_size, int* minimum,
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int* natural, int* minimum_baseline, int* natural_baseline)
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{
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NotifyingLayout* self = NOTIFYING_LAYOUT(pLayoutManager);
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GtkLayoutManagerClass* pKlass
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= GTK_LAYOUT_MANAGER_CLASS(G_OBJECT_GET_CLASS(self->m_pOrigManager));
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pKlass->measure(self->m_pOrigManager, widget, orientation, for_size, minimum, natural,
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minimum_baseline, natural_baseline);
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}
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static void notifying_layout_allocate(GtkLayoutManager* pLayoutManager, GtkWidget* widget,
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int width, int height, int baseline)
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{
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NotifyingLayout* self = NOTIFYING_LAYOUT(pLayoutManager);
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GtkLayoutManagerClass* pKlass
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= GTK_LAYOUT_MANAGER_CLASS(G_OBJECT_GET_CLASS(self->m_pOrigManager));
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pKlass->allocate(self->m_pOrigManager, widget, width, height, baseline);
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self->m_aLink.Call(nullptr);
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}
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static GtkSizeRequestMode notifying_layout_get_request_mode(GtkLayoutManager* pLayoutManager,
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GtkWidget* widget)
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{
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NotifyingLayout* self = NOTIFYING_LAYOUT(pLayoutManager);
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GtkLayoutManagerClass* pKlass
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= GTK_LAYOUT_MANAGER_CLASS(G_OBJECT_GET_CLASS(self->m_pOrigManager));
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return pKlass->get_request_mode(self->m_pOrigManager, widget);
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}
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static void notifying_layout_class_init(NotifyingLayoutClass* klass)
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{
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GtkLayoutManagerClass* layout_class = GTK_LAYOUT_MANAGER_CLASS(klass);
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layout_class->get_request_mode = notifying_layout_get_request_mode;
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layout_class->measure = notifying_layout_measure;
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layout_class->allocate = notifying_layout_allocate;
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}
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static void notifying_layout_init(NotifyingLayout* self)
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{
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self->m_pWidget = nullptr;
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self->m_pOrigManager = nullptr;
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// prevent loplugin:unreffun firing on macro generated function
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(void)notifying_layout_get_instance_private(self);
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}
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void notifying_layout_start_watch(NotifyingLayout* self, GtkWidget* pWidget,
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const Link<void*, void>& rLink)
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{
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self->m_pWidget = pWidget;
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self->m_aLink = rLink;
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self->m_pOrigManager = gtk_widget_get_layout_manager(self->m_pWidget);
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g_object_ref(self->m_pOrigManager);
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gtk_widget_set_layout_manager(pWidget, GTK_LAYOUT_MANAGER(self));
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}
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void notifying_layout_stop_watch(NotifyingLayout* self)
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{
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gtk_widget_set_layout_manager(self->m_pWidget, self->m_pOrigManager);
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}
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/* vim:set shiftwidth=4 softtabstop=4 expandtab: */
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