+++ /dev/null
-/*
- * This file is part of the PulseView project.
- *
- * Copyright (C) 2012 Joel Holdsworth <joel@airwebreathe.org.uk>
- *
- * This program 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 2 of the License, or
- * (at your option) any later version.
- *
- * This program 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 this program; if not, write to the Free Software
- * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
- */
-
-extern "C" {
-#include <libsigrokdecode/libsigrokdecode.h>
-}
-
-#include <extdef.h>
-
-#include <algorithm>
-
-#include <boost/foreach.hpp>
-
-#include <QPainter>
-
-#include "annotation.h"
-
-using namespace std;
-
-namespace pv {
-namespace view {
-namespace decode {
-
-const double Annotation::EndCapWidth = 5;
-const int Annotation::DrawPadding = 100;
-
-const QColor Annotation::Colours[7] = {
- QColor(0xFC, 0xE9, 0x4F), // Light Butter
- QColor(0xFC, 0xAF, 0x3E), // Light Orange
- QColor(0xE9, 0xB9, 0x6E), // Light Chocolate
- QColor(0x8A, 0xE2, 0x34), // Light Green
- QColor(0x72, 0x9F, 0xCF), // Light Blue
- QColor(0xAD, 0x7F, 0xA8), // Light Plum
- QColor(0xEF, 0x29, 0x29) // Light Red
-};
-
-Annotation::Annotation(const srd_proto_data *const pdata) :
- _start_sample(pdata->start_sample),
- _end_sample(pdata->end_sample)
-{
- assert(pdata);
- const srd_proto_data_annotation *const pda =
- (const srd_proto_data_annotation*)pdata->data;
- assert(pda);
-
- _format = pda->ann_format;
-
- const char *const *annotations = (char**)pda->ann_text;
- while(*annotations) {
- _annotations.push_back(QString(*annotations));
- annotations++;
- }
-}
-
-uint64_t Annotation::start_sample() const
-{
- return _start_sample;
-}
-
-uint64_t Annotation::end_sample() const
-{
- return _end_sample;
-}
-
-void Annotation::paint(QPainter &p, QColor text_color, int h,
- int left, int right, double samples_per_pixel, double pixels_offset,
- int y) const
-{
- const double start = _start_sample / samples_per_pixel -
- pixels_offset;
- const double end = _end_sample / samples_per_pixel -
- pixels_offset;
- const QColor fill = Colours[(_format * (countof(Colours) / 2 + 1)) %
- countof(Colours)];
- const QColor outline(fill.darker());
-
- if (start > right + DrawPadding || end < left - DrawPadding)
- return;
-
- if (_start_sample == _end_sample)
- draw_instant(p, fill, outline, text_color, h,
- start, y);
- else
- draw_range(p, fill, outline, text_color, h,
- start, end, y);
-}
-
-void Annotation::draw_instant(QPainter &p, QColor fill, QColor outline,
- QColor text_color, int h, double x, int y) const
-{
- const QString text = _annotations.empty() ?
- QString() : _annotations.back();
- const double w = min(p.boundingRect(QRectF(), 0, text).width(),
- 0.0) + h;
- const QRectF rect(x - w / 2, y - h / 2, w, h);
-
- p.setPen(outline);
- p.setBrush(fill);
- p.drawRoundedRect(rect, h / 2, h / 2);
-
- p.setPen(text_color);
- p.drawText(rect, Qt::AlignCenter | Qt::AlignVCenter, text);
-}
-
-void Annotation::draw_range(QPainter &p, QColor fill, QColor outline,
- QColor text_color, int h, double start, double end, int y) const
-{
- const double top = y + .5 - h / 2;
- const double bottom = y + .5 + h / 2;
-
- p.setPen(outline);
- p.setBrush(fill);
-
- // If the two ends are within 1 pixel, draw a vertical line
- if (start + 1.0 > end)
- {
- p.drawLine(QPointF(start, top), QPointF(start, bottom));
- return;
- }
-
- const double cap_width = min((end - start) / 4, EndCapWidth);
-
- QPointF pts[] = {
- QPointF(start, y + .5f),
- QPointF(start + cap_width, top),
- QPointF(end - cap_width, top),
- QPointF(end, y + .5f),
- QPointF(end - cap_width, bottom),
- QPointF(start + cap_width, bottom)
- };
-
- p.drawConvexPolygon(pts, countof(pts));
-
- if (_annotations.empty())
- return;
-
- QRectF rect(start + cap_width, y - h / 2,
- end - start - cap_width * 2, h);
- p.setPen(text_color);
-
- // Try to find an annotation that will fit
- QString best_annotation;
- int best_width = 0;
-
- BOOST_FOREACH(const QString &a, _annotations) {
- const int w = p.boundingRect(QRectF(), 0, a).width();
- if (w <= rect.width() && w > best_width)
- best_annotation = a, best_width = w;
- }
-
- if (best_annotation.isEmpty())
- best_annotation = _annotations.back();
-
- // If not ellide the last in the list
- p.drawText(rect, Qt::AlignCenter, p.fontMetrics().elidedText(
- best_annotation, Qt::ElideRight, rect.width()));
-}
-
-} // namespace decode
-} // namespace view
-} // namespace pv
projects / pulseview.git / blobdiff