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Serenity Operating System
1/*
2 * Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright notice, this
9 * list of conditions and the following disclaimer.
10 *
11 * 2. Redistributions in binary form must reproduce the above copyright notice,
12 * this list of conditions and the following disclaimer in the documentation
13 * and/or other materials provided with the distribution.
14 *
15 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
16 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
18 * DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
19 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
21 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
22 * CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
23 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include <LibGUI/Label.h>
28#include <LibGUI/Painter.h>
29#include <LibGfx/Bitmap.h>
30#include <LibGfx/Font.h>
31#include <LibGfx/Palette.h>
32
33namespace GUI {
34
35Label::Label(const StringView& text)
36 : m_text(text)
37{
38 set_frame_thickness(0);
39 set_frame_shadow(Gfx::FrameShadow::Plain);
40 set_frame_shape(Gfx::FrameShape::NoFrame);
41}
42
43Label::~Label()
44{
45}
46
47void Label::set_icon(const Gfx::Bitmap* icon)
48{
49 if (m_icon == icon)
50 return;
51 m_icon = icon;
52 update();
53}
54
55void Label::set_text(const StringView& text)
56{
57 if (text == m_text)
58 return;
59 m_text = text;
60 update();
61}
62
63void Label::paint_event(PaintEvent& event)
64{
65 Frame::paint_event(event);
66
67 Painter painter(*this);
68 painter.add_clip_rect(event.rect());
69
70 if (m_icon) {
71 if (m_should_stretch_icon) {
72 painter.draw_scaled_bitmap(frame_inner_rect(), *m_icon, m_icon->rect());
73 } else {
74 auto icon_location = frame_inner_rect().center().translated(-(m_icon->width() / 2), -(m_icon->height() / 2));
75 painter.blit(icon_location, *m_icon, m_icon->rect());
76 }
77 }
78 if (text().is_empty())
79 return;
80 int indent = 0;
81 if (frame_thickness() > 0)
82 indent = font().glyph_width('x') / 2;
83 auto text_rect = frame_inner_rect();
84 text_rect.move_by(indent, 0);
85 text_rect.set_width(text_rect.width() - indent * 2);
86
87 if (is_enabled()) {
88 painter.draw_text(text_rect, text(), m_text_alignment, palette().window_text(), Gfx::TextElision::Right);
89 } else {
90 painter.draw_text(text_rect.translated(1, 1), text(), font(), text_alignment(), Color::White, Gfx::TextElision::Right);
91 painter.draw_text(text_rect, text(), font(), text_alignment(), Color::from_rgb(0x808080), Gfx::TextElision::Right);
92 }
93}
94
95void Label::size_to_fit()
96{
97 set_size_policy(SizePolicy::Fixed, SizePolicy::Fill);
98 set_preferred_size(font().width(m_text), 0);
99}
100
101}