ladybird/Userland/Libraries/LibGUI/Label.cpp
2021-01-12 12:17:46 +01:00

127 lines
3.8 KiB
C++

/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* 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 <LibGUI/Label.h>
#include <LibGUI/Painter.h>
#include <LibGfx/Bitmap.h>
#include <LibGfx/Font.h>
#include <LibGfx/Palette.h>
REGISTER_WIDGET(GUI, Label)
namespace GUI {
Label::Label(String text)
: m_text(move(text))
{
REGISTER_TEXT_ALIGNMENT_PROPERTY("text_alignment", text_alignment, set_text_alignment);
set_frame_thickness(0);
set_frame_shadow(Gfx::FrameShadow::Plain);
set_frame_shape(Gfx::FrameShape::NoFrame);
set_foreground_role(Gfx::ColorRole::WindowText);
REGISTER_STRING_PROPERTY("text", text, set_text);
REGISTER_BOOL_PROPERTY("autosize", is_autosize, set_autosize);
}
Label::~Label()
{
}
void Label::set_autosize(bool autosize)
{
if (m_autosize == autosize)
return;
m_autosize = autosize;
if (m_autosize)
size_to_fit();
}
void Label::set_icon(const Gfx::Bitmap* icon)
{
if (m_icon == icon)
return;
m_icon = icon;
update();
}
void Label::set_text(String text)
{
if (text == m_text)
return;
m_text = move(text);
if (m_autosize)
size_to_fit();
update();
did_change_text();
}
Gfx::IntRect Label::text_rect() const
{
int indent = 0;
if (frame_thickness() > 0)
indent = font().glyph_width('x') / 2;
auto rect = frame_inner_rect();
rect.move_by(indent, 0);
rect.set_width(rect.width() - indent * 2);
return rect;
}
void Label::paint_event(PaintEvent& event)
{
Frame::paint_event(event);
Painter painter(*this);
painter.add_clip_rect(event.rect());
if (m_icon) {
if (m_should_stretch_icon) {
painter.draw_scaled_bitmap(frame_inner_rect(), *m_icon, m_icon->rect());
} else {
auto icon_location = frame_inner_rect().center().translated(-(m_icon->width() / 2), -(m_icon->height() / 2));
painter.blit(icon_location, *m_icon, m_icon->rect());
}
}
if (text().is_empty())
return;
auto text_rect = this->text_rect();
if (is_enabled()) {
painter.draw_text(text_rect, text(), m_text_alignment, palette().color(foreground_role()), Gfx::TextElision::Right);
} else {
painter.draw_text(text_rect.translated(1, 1), text(), font(), text_alignment(), Color::White, Gfx::TextElision::Right);
painter.draw_text(text_rect, text(), font(), text_alignment(), Color::from_rgb(0x808080), Gfx::TextElision::Right);
}
}
void Label::size_to_fit()
{
set_fixed_width(font().width(m_text));
}
}