From 9014d300ed470c3500c26ca3e62173ea816ca110 Mon Sep 17 00:00:00 2001 From: Alex McGrath Date: Mon, 21 Dec 2020 14:00:29 +0000 Subject: [PATCH] LibGUI: Add a Link widget This is a widget that can represent a link, its underlined and has an onclick action --- Libraries/LibGUI/CMakeLists.txt | 1 + Libraries/LibGUI/Link.cpp | 89 +++++++++++++++++++++++++++++++++ Libraries/LibGUI/Link.h | 49 ++++++++++++++++++ 3 files changed, 139 insertions(+) create mode 100644 Libraries/LibGUI/Link.cpp create mode 100644 Libraries/LibGUI/Link.h diff --git a/Libraries/LibGUI/CMakeLists.txt b/Libraries/LibGUI/CMakeLists.txt index c389f76ad5..cf3edf6e9e 100644 --- a/Libraries/LibGUI/CMakeLists.txt +++ b/Libraries/LibGUI/CMakeLists.txt @@ -46,6 +46,7 @@ set(SOURCES Label.cpp Layout.cpp LazyWidget.cpp + Link.cpp ListView.cpp Menu.cpp MenuBar.cpp diff --git a/Libraries/LibGUI/Link.cpp b/Libraries/LibGUI/Link.cpp new file mode 100644 index 0000000000..83fba8f3f2 --- /dev/null +++ b/Libraries/LibGUI/Link.cpp @@ -0,0 +1,89 @@ +/* + * Copyright (c) 2020, Alex McGrath + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +namespace GUI { + +Link::Link(const StringView& text) + : Label(text) +{ + set_foreground_role(Gfx::ColorRole::Link); +} + +void Link::mousedown_event(MouseEvent&) +{ + if (on_click) { + on_click(); + } +} + +void Link::paint_event(PaintEvent& event) +{ + Label::paint_event(event); + GUI::Painter painter(*this); + + if (m_hovered) + painter.draw_line({ 0, rect().bottom() }, { font().width(text()), rect().bottom() }, + Widget::palette().link()); +} + +void Link::enter_event(Core::Event&) +{ + m_hovered = true; + update(); +} + +void Link::leave_event(Core::Event&) +{ + m_hovered = false; + update(); +} + +void Link::second_paint_event(PaintEvent&) +{ + if (window()->width() < font().width(text())) { + set_tooltip(text()); + } +} + +void Link::resize_event(ResizeEvent&) +{ + if (window()->width() < font().width(text())) { + set_tooltip(text()); + } else { + set_tooltip({}); + } +} + +} diff --git a/Libraries/LibGUI/Link.h b/Libraries/LibGUI/Link.h new file mode 100644 index 0000000000..41bd2d2d16 --- /dev/null +++ b/Libraries/LibGUI/Link.h @@ -0,0 +1,49 @@ +/* + * Copyright (c) 2020, Alex McGrath + * 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 +#include + +namespace GUI { +class Link : public Label { + C_OBJECT(Link) +public: + Link(const StringView&); + Function on_click; + +private: + virtual void mousedown_event(MouseEvent&) override; + virtual void paint_event(PaintEvent&) override; + virtual void resize_event(ResizeEvent&) override; + virtual void second_paint_event(PaintEvent&) override; + virtual void enter_event(Core::Event&) override; + virtual void leave_event(Core::Event&) override; + + bool m_hovered = false; +}; +}