/* * Copyright (c) 2018-2020, Andreas Kling * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions are met: * * 1. Redistributions of source code must retain the above copyright notice, this * list of conditions and the following disclaimer. * * 2. Redistributions in binary form must reproduce the above copyright notice, * this list of conditions and the following disclaimer in the documentation * and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #pragma once #include class GTabWidget : public GWidget { C_OBJECT(GTabWidget) public: enum TabPosition { Top, Bottom, }; explicit GTabWidget(GWidget* parent); virtual ~GTabWidget() override; TabPosition tab_position() const { return m_tab_position; } void set_tab_position(TabPosition); int active_tab_index() const; GWidget* active_widget() { return m_active_widget.ptr(); } const GWidget* active_widget() const { return m_active_widget.ptr(); } void set_active_widget(GWidget*); int bar_height() const { return 21; } int container_padding() const { return 2; } void add_widget(const StringView&, GWidget*); protected: virtual void paint_event(GPaintEvent&) override; virtual void child_event(CChildEvent&) override; virtual void resize_event(GResizeEvent&) override; virtual void mousedown_event(GMouseEvent&) override; virtual void mousemove_event(GMouseEvent&) override; virtual void leave_event(CEvent&) override; private: Rect child_rect_for_size(const Size&) const; Rect button_rect(int index) const; Rect bar_rect() const; Rect container_rect() const; void update_bar(); RefPtr m_active_widget; struct TabData { Rect rect(const Font&) const; int width(const Font&) const; String title; GWidget* widget { nullptr }; }; Vector m_tabs; TabPosition m_tab_position { TabPosition::Top }; int m_hovered_tab_index { -1 }; };