a79bac428b
GApplication now has a palette. This palette contains all the system theme colors by default, and is inherited by a new top-level GWidget. New child widgets inherit their parents palette. It is possible to override the GApplication palette, and the palette of any GWidget. The Palette object contains a bunch of colors, each corresponding to a ColorRole. Each role has a convenience getter as well. Each GWidget now has a background_role() and foreground_role(), which are then looked up in their current palette when painting. This means that you no longer alter the background color of a widget by setting it directly, rather you alter either its background role, or the widget's palette.
115 lines
3 KiB
C++
115 lines
3 KiB
C++
#include "TextWidget.h"
|
|
#include <AK/String.h>
|
|
#include <AK/StringBuilder.h>
|
|
#include <AK/Vector.h>
|
|
#include <LibDraw/Palette.h>
|
|
#include <LibGUI/GPainter.h>
|
|
|
|
TextWidget::TextWidget(GWidget* parent)
|
|
: GFrame(parent)
|
|
{
|
|
}
|
|
|
|
TextWidget::TextWidget(const StringView& text, GWidget* parent)
|
|
: GFrame(parent)
|
|
, m_text(text)
|
|
{
|
|
}
|
|
|
|
TextWidget::~TextWidget()
|
|
{
|
|
}
|
|
|
|
void TextWidget::set_text(const StringView& text)
|
|
{
|
|
if (text == m_text)
|
|
return;
|
|
m_text = text;
|
|
wrap_and_set_height();
|
|
update();
|
|
}
|
|
|
|
void TextWidget::paint_event(GPaintEvent& event)
|
|
{
|
|
GFrame::paint_event(event);
|
|
|
|
GPainter painter(*this);
|
|
painter.add_clip_rect(event.rect());
|
|
|
|
int indent = 0;
|
|
if (frame_thickness() > 0)
|
|
indent = font().glyph_width('x') / 2;
|
|
|
|
for (int i = 0; i < m_lines.size(); i++) {
|
|
auto& line = m_lines[i];
|
|
|
|
auto text_rect = frame_inner_rect();
|
|
text_rect.move_by(indent, i * m_line_height);
|
|
if (!line.is_empty())
|
|
text_rect.set_width(text_rect.width() - indent * 2);
|
|
|
|
if (is_enabled()) {
|
|
painter.draw_text(text_rect, line, m_text_alignment, palette().color(foreground_role()), TextElision::None);
|
|
} else {
|
|
painter.draw_text(text_rect.translated(1, 1), line, font(), text_alignment(), Color::White, TextElision::Right);
|
|
painter.draw_text(text_rect, line, font(), text_alignment(), Color::from_rgb(0x808080), TextElision::Right);
|
|
}
|
|
}
|
|
}
|
|
|
|
void TextWidget::resize_event(GResizeEvent& event)
|
|
{
|
|
wrap_and_set_height();
|
|
GWidget::resize_event(event);
|
|
}
|
|
|
|
void TextWidget::wrap_and_set_height()
|
|
{
|
|
Vector<String> words;
|
|
Optional<size_t> start;
|
|
for (size_t i = 0; i < m_text.length(); i++) {
|
|
auto ch = m_text[i];
|
|
|
|
if (ch == ' ' || ch == '\t' || ch == '\r' || ch == '\n') {
|
|
if (start.has_value())
|
|
words.append(m_text.substring(start.value(), i - start.value()));
|
|
start = -1;
|
|
} else if (!start.has_value()) {
|
|
start = i;
|
|
}
|
|
}
|
|
if (start.has_value())
|
|
words.append(m_text.substring(start, m_text.length() - start.value()));
|
|
|
|
auto rect = frame_inner_rect();
|
|
if (frame_thickness() > 0)
|
|
rect.set_width(rect.width() - font().glyph_width('x'));
|
|
|
|
StringBuilder builder;
|
|
Vector<String> lines;
|
|
int line_width = 0;
|
|
for (auto& word : words) {
|
|
int word_width = font().width(word);
|
|
if (line_width != 0)
|
|
word_width += font().glyph_width('x');
|
|
|
|
if (line_width + word_width > rect.width()) {
|
|
lines.append(builder.to_string());
|
|
line_width = 0;
|
|
}
|
|
|
|
if (line_width != 0)
|
|
builder.append(' ');
|
|
builder.append(word);
|
|
line_width += word_width;
|
|
}
|
|
auto last_line = builder.to_string();
|
|
if (!last_line.is_empty()) {
|
|
lines.append(last_line);
|
|
}
|
|
|
|
m_lines = lines;
|
|
|
|
set_size_policy(SizePolicy::Fill, SizePolicy::Fixed);
|
|
set_preferred_size(0, m_lines.size() * m_line_height + frame_thickness() * 2);
|
|
}
|