X-Git-Url: http://sigrok.org/gitweb/?p=pulseview.git;a=blobdiff_plain;f=pv%2Fviews%2Ftrace%2Ftrace.cpp;fp=pv%2Fviews%2Ftrace%2Ftrace.cpp;h=46d9edb9ba14bbcfdf2069b42390415b34a6299c;hp=0000000000000000000000000000000000000000;hb=1573bf16ba50d1c023ad3a9ce596f0ab6eaeacff;hpb=4c7a19d3d7049bcc9fb3185ce2bc91333a7ca9e1;ds=sidebyside diff --git a/pv/views/trace/trace.cpp b/pv/views/trace/trace.cpp new file mode 100644 index 00000000..46d9edb9 --- /dev/null +++ b/pv/views/trace/trace.cpp @@ -0,0 +1,284 @@ +/* + * This file is part of the PulseView project. + * + * Copyright (C) 2013 Joel Holdsworth + * + * 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, see . + */ + +#include + +#include +#include + +#include +#include +#include +#include + +#include "trace.hpp" +#include "tracepalette.hpp" +#include "view.hpp" + +#include "pv/globalsettings.hpp" +#include "pv/widgets/colourbutton.hpp" +#include "pv/widgets/popup.hpp" + +using std::pair; +using std::shared_ptr; + +namespace pv { +namespace views { +namespace trace { + +const QPen Trace::AxisPen(QColor(0, 0, 0, 30 * 256 / 100)); +const int Trace::LabelHitPadding = 2; + +const QColor Trace::BrightGrayBGColour = QColor(0, 0, 0, 10 * 255 / 100); +const QColor Trace::DarkGrayBGColour = QColor(0, 0, 0, 15 * 255 / 100); + +Trace::Trace(shared_ptr channel) : + base_(channel), + popup_(nullptr), + popup_form_(nullptr) +{ + connect(channel.get(), SIGNAL(name_changed(const QString&)), + this, SLOT(on_name_changed(const QString&))); + connect(channel.get(), SIGNAL(colour_changed(const QColor&)), + this, SLOT(on_colour_changed(const QColor&))); +} + +shared_ptr Trace::base() const +{ + return base_; +} + +void Trace::paint_label(QPainter &p, const QRect &rect, bool hover) +{ + const int y = get_visual_y(); + + p.setBrush(base_->colour()); + + if (!enabled()) + return; + + const QRectF r = label_rect(rect); + + // When selected, move the arrow to the left so that the border can show + const QPointF offs = (selected()) ? QPointF(-2, 0) : QPointF(0, 0); + + // Paint the label + const float label_arrow_length = r.height() / 2; + QPointF points[] = { + offs + r.topLeft(), + offs + QPointF(r.right() - label_arrow_length, r.top()), + offs + QPointF(r.right(), y), + offs + QPointF(r.right() - label_arrow_length, r.bottom()), + offs + r.bottomLeft() + }; + QPointF highlight_points[] = { + offs + QPointF(r.left() + 1, r.top() + 1), + offs + QPointF(r.right() - label_arrow_length, r.top() + 1), + offs + QPointF(r.right() - 1, y), + offs + QPointF(r.right() - label_arrow_length, r.bottom() - 1), + offs + QPointF(r.left() + 1, r.bottom() - 1) + }; + + if (selected()) { + p.setPen(highlight_pen()); + p.setBrush(Qt::transparent); + p.drawPolygon(points, countof(points)); + } + + p.setPen(Qt::transparent); + p.setBrush(hover ? base_->colour().lighter() : base_->colour()); + p.drawPolygon(points, countof(points)); + + p.setPen(base_->colour().lighter()); + p.setBrush(Qt::transparent); + p.drawPolygon(highlight_points, countof(highlight_points)); + + p.setPen(base_->colour().darker()); + p.setBrush(Qt::transparent); + p.drawPolygon(points, countof(points)); + + // Paint the text + p.setPen(select_text_colour(base_->colour())); + p.setFont(QApplication::font()); + p.drawText(QRectF(r.x(), r.y(), + r.width() - label_arrow_length, r.height()), + Qt::AlignCenter | Qt::AlignVCenter, base_->name()); +} + +QMenu* Trace::create_context_menu(QWidget *parent) +{ + QMenu *const menu = ViewItem::create_context_menu(parent); + + return menu; +} + +pv::widgets::Popup* Trace::create_popup(QWidget *parent) +{ + using pv::widgets::Popup; + + popup_ = new Popup(parent); + popup_->set_position(parent->mapToGlobal( + point(parent->rect())), Popup::Right); + + create_popup_form(); + + connect(popup_, SIGNAL(closed()), this, SLOT(on_popup_closed())); + + return popup_; +} + +QRectF Trace::label_rect(const QRectF &rect) const +{ + QFontMetrics m(QApplication::font()); + const QSize text_size( + m.boundingRect(QRect(), 0, base_->name()).width(), m.height()); + const QSizeF label_size( + text_size.width() + LabelPadding.width() * 2, + ceilf((text_size.height() + LabelPadding.height() * 2) / 2) * 2); + const float half_height = label_size.height() / 2; + return QRectF( + rect.right() - half_height - label_size.width() - 0.5, + get_visual_y() + 0.5f - half_height, + label_size.width() + half_height, + label_size.height()); +} + +void Trace::paint_back(QPainter &p, ViewItemPaintParams &pp) +{ + const View *view = owner_->view(); + assert(view); + + if (view->coloured_bg()) + p.setBrush(base_->bgcolour()); + else + p.setBrush(pp.next_bg_colour_state() ? BrightGrayBGColour : DarkGrayBGColour); + + p.setPen(QPen(Qt::NoPen)); + + const pair extents = v_extents(); + p.drawRect(pp.left(), get_visual_y() + extents.first, + pp.width(), extents.second - extents.first); +} + +void Trace::paint_axis(QPainter &p, ViewItemPaintParams &pp, int y) +{ + p.setRenderHint(QPainter::Antialiasing, false); + + p.setPen(AxisPen); + p.drawLine(QPointF(pp.left(), y), QPointF(pp.right(), y)); + + p.setRenderHint(QPainter::Antialiasing, true); +} + +void Trace::add_colour_option(QWidget *parent, QFormLayout *form) +{ + using pv::widgets::ColourButton; + + ColourButton *const colour_button = new ColourButton( + TracePalette::Rows, TracePalette::Cols, parent); + colour_button->set_palette(TracePalette::Colours); + colour_button->set_colour(base_->colour()); + connect(colour_button, SIGNAL(selected(const QColor&)), + this, SLOT(on_colouredit_changed(const QColor&))); + + form->addRow(tr("Colour"), colour_button); +} + +void Trace::create_popup_form() +{ + // Clear the layout + + // Transfer the layout and the child widgets to a temporary widget + // which we delete after the event was handled. This way, the layout + // and all widgets contained therein are deleted after the event was + // handled, leaving the parent popup_ time to handle the change. + if (popup_form_) { + QWidget *suicidal = new QWidget(); + suicidal->setLayout(popup_form_); + suicidal->deleteLater(); + } + + // Repopulate the popup + popup_form_ = new QFormLayout(popup_); + popup_->setLayout(popup_form_); + populate_popup_form(popup_, popup_form_); +} + +void Trace::populate_popup_form(QWidget *parent, QFormLayout *form) +{ + QLineEdit *const name_edit = new QLineEdit(parent); + name_edit->setText(base_->name()); + connect(name_edit, SIGNAL(textChanged(const QString&)), + this, SLOT(on_nameedit_changed(const QString&))); + form->addRow(tr("Name"), name_edit); + + add_colour_option(parent, form); +} + +void Trace::set_name(QString name) +{ + base_->set_name(name); +} + +void Trace::set_colour(QColor colour) +{ + base_->set_colour(colour); +} + +void Trace::on_name_changed(const QString &text) +{ + /* This event handler is called by SignalBase when the name was changed there */ + (void)text; + + if (owner_) { + owner_->extents_changed(true, false); + owner_->row_item_appearance_changed(true, false); + } +} + +void Trace::on_colour_changed(const QColor &colour) +{ + /* This event handler is called by SignalBase when the colour was changed there */ + (void)colour; + + if (owner_) + owner_->row_item_appearance_changed(true, true); +} + +void Trace::on_popup_closed() +{ + popup_ = nullptr; + popup_form_ = nullptr; +} + +void Trace::on_nameedit_changed(const QString &name) +{ + /* This event handler notifies SignalBase that the name changed */ + set_name(name); +} + +void Trace::on_colouredit_changed(const QColor &colour) +{ + /* This event handler notifies SignalBase that the colour changed */ + set_colour(colour); +} + +} // namespace trace +} // namespace views +} // namespace pv