mirror of
https://github.com/fergalmoran/flameshot.git
synced 2025-12-22 09:51:06 +00:00
139 lines
3.8 KiB
C++
139 lines
3.8 KiB
C++
// Copyright(c) 2017-2019 Alejandro Sirgo Rica & Contributors
|
|
//
|
|
// This file is part of Flameshot.
|
|
//
|
|
// Flameshot is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// Flameshot is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU General Public License
|
|
// along with Flameshot. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
#include "arrowtool.h"
|
|
|
|
namespace {
|
|
|
|
#define PADDING_VALUE 2
|
|
|
|
const int ArrowWidth = 10;
|
|
const int ArrowHeight = 18;
|
|
|
|
QPainterPath getArrowHead(QPoint p1, QPoint p2, const int thickness)
|
|
{
|
|
QLineF base(p1, p2);
|
|
// Create the vector for the position of the base of the arrowhead
|
|
QLineF temp(QPoint(0, 0), p2 - p1);
|
|
int val = ArrowHeight + thickness * 4;
|
|
if (base.length() < val) {
|
|
val = (base.length() + thickness * 2);
|
|
}
|
|
temp.setLength(base.length() + thickness * 2 - val);
|
|
// Move across the line up to the head
|
|
QPointF bottonTranslation(temp.p2());
|
|
|
|
// Rotate base of the arrowhead
|
|
base.setLength(ArrowWidth + thickness * 2);
|
|
base.setAngle(base.angle() + 90);
|
|
// Move to the correct point
|
|
QPointF temp2 = p1 - base.p2();
|
|
// Center it
|
|
QPointF centerTranslation((temp2.x() / 2), (temp2.y() / 2));
|
|
|
|
base.translate(bottonTranslation);
|
|
base.translate(centerTranslation);
|
|
|
|
QPainterPath path;
|
|
path.moveTo(p2);
|
|
path.lineTo(base.p1());
|
|
path.lineTo(base.p2());
|
|
path.lineTo(p2);
|
|
return path;
|
|
}
|
|
|
|
// gets a shorter line to prevent overlap in the point of the arrow
|
|
QLine getShorterLine(QPoint p1, QPoint p2, const int thickness)
|
|
{
|
|
QLineF l(p1, p2);
|
|
int val = ArrowHeight + thickness * 4;
|
|
if (l.length() < val) {
|
|
val = (l.length() + thickness * 2);
|
|
}
|
|
l.setLength(l.length() + thickness * 2 - val);
|
|
return l.toLine();
|
|
}
|
|
|
|
} // unnamed namespace
|
|
|
|
ArrowTool::ArrowTool(QObject* parent)
|
|
: AbstractTwoPointTool(parent)
|
|
{
|
|
m_padding = ArrowWidth / 2;
|
|
m_supportsOrthogonalAdj = true;
|
|
m_supportsDiagonalAdj = true;
|
|
}
|
|
|
|
QIcon ArrowTool::icon(const QColor& background, bool inEditor) const
|
|
{
|
|
Q_UNUSED(inEditor);
|
|
return QIcon(iconPath(background) + "arrow-bottom-left.svg");
|
|
}
|
|
QString ArrowTool::name() const
|
|
{
|
|
return tr("Arrow");
|
|
}
|
|
|
|
ToolType ArrowTool::nameID() const
|
|
{
|
|
return ToolType::ARROW;
|
|
}
|
|
|
|
QString ArrowTool::description() const
|
|
{
|
|
return tr("Set the Arrow as the paint tool");
|
|
}
|
|
|
|
CaptureTool* ArrowTool::copy(QObject* parent)
|
|
{
|
|
return new ArrowTool(parent);
|
|
}
|
|
|
|
void ArrowTool::process(QPainter& painter,
|
|
const QPixmap& pixmap,
|
|
bool recordUndo)
|
|
{
|
|
if (recordUndo) {
|
|
updateBackup(pixmap);
|
|
}
|
|
painter.setPen(QPen(m_color, m_thickness));
|
|
painter.drawLine(
|
|
getShorterLine(m_points.first, m_points.second, m_thickness));
|
|
painter.fillPath(getArrowHead(m_points.first, m_points.second, m_thickness),
|
|
QBrush(m_color));
|
|
}
|
|
|
|
void ArrowTool::paintMousePreview(QPainter& painter,
|
|
const CaptureContext& context)
|
|
{
|
|
painter.setPen(QPen(context.color, PADDING_VALUE + context.thickness));
|
|
painter.drawLine(context.mousePos, context.mousePos);
|
|
}
|
|
|
|
void ArrowTool::drawStart(const CaptureContext& context)
|
|
{
|
|
m_color = context.color;
|
|
m_thickness = context.thickness + PADDING_VALUE;
|
|
m_points.first = context.mousePos;
|
|
m_points.second = context.mousePos;
|
|
}
|
|
|
|
void ArrowTool::pressed(const CaptureContext& context)
|
|
{
|
|
Q_UNUSED(context);
|
|
}
|