]> sigrok.org Git - pulseview.git/blobdiff - pv/view/trace.cpp
Change namespace for the trace view and implement ViewBase
[pulseview.git] / pv / view / trace.cpp
index 1734921a57c568585c648b177f8ce29019eb1a5e..3bdf725df4f4bc52fb739586da259191c5b386e0 100644 (file)
@@ -21,7 +21,7 @@
 #include <extdef.h>
 
 #include <assert.h>
-#include <math.h>
+#include <cmath>
 
 #include <QApplication>
 #include <QFormLayout>
 #include <pv/widgets/popup.hpp>
 
 namespace pv {
-namespace view {
+namespace views {
+namespace TraceView {
 
-const QPen Trace::AxisPen(QColor(128, 128, 128, 64));
+const QPen Trace::AxisPen(QColor(0, 0, 0, 30*256/100));
 const int Trace::LabelHitPadding = 2;
 
-Trace::Trace(QString name) :
-       name_(name),
-       popup_(NULL),
-       popup_form_(NULL)
-{
-}
-
-QString Trace::name() const
-{
-       return name_;
-}
+const QColor Trace::BrightGrayBGColour = QColor(0, 0, 0, 10*255/100);
+const QColor Trace::DarkGrayBGColour = QColor(0, 0, 0, 15*255/100);
 
-void Trace::set_name(QString name)
+Trace::Trace(std::shared_ptr<data::SignalBase> channel) :
+       base_(channel),
+       coloured_bg_(true), // Default setting is set in MainWindow::setup_ui()
+       popup_(nullptr),
+       popup_form_(nullptr)
 {
-       name_ = name;
-}
-
-QColor Trace::colour() const
-{
-       return colour_;
+       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&)));
 }
 
-void Trace::set_colour(QColor colour)
+void Trace::set_coloured_bg(bool state)
 {
-       colour_ = colour;
+       coloured_bg_ = state;
 }
 
-void Trace::paint_label(QPainter &p, int right, bool hover)
+void Trace::paint_label(QPainter &p, const QRect &rect, bool hover)
 {
        const int y = get_visual_y();
 
-       p.setBrush(colour_);
+       p.setBrush(base_->colour());
 
        if (!enabled())
                return;
 
-       const QRectF r = label_rect(right);
+       const QRectF r = label_rect(rect);
 
        // Paint the label
        const float label_arrow_length = r.height() / 2;
@@ -103,28 +97,28 @@ void Trace::paint_label(QPainter &p, int right, bool hover)
        }
 
        p.setPen(Qt::transparent);
-       p.setBrush(hover ? colour_.lighter() : colour_);
+       p.setBrush(hover ? base_->colour().lighter() : base_->colour());
        p.drawPolygon(points, countof(points));
 
-       p.setPen(colour_.lighter());
+       p.setPen(base_->colour().lighter());
        p.setBrush(Qt::transparent);
        p.drawPolygon(highlight_points, countof(highlight_points));
 
-       p.setPen(colour_.darker());
+       p.setPen(base_->colour().darker());
        p.setBrush(Qt::transparent);
        p.drawPolygon(points, countof(points));
 
        // Paint the text
-       p.setPen(get_text_colour());
+       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, name_);
+               Qt::AlignCenter | Qt::AlignVCenter, base_->name());
 }
 
 QMenu* Trace::create_context_menu(QWidget *parent)
 {
-       QMenu *const menu = SelectableItem::create_context_menu(parent);
+       QMenu *const menu = ViewItem::create_context_menu(parent);
 
        return menu;
 }
@@ -134,6 +128,8 @@ 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();
 
@@ -143,34 +139,49 @@ pv::widgets::Popup* Trace::create_popup(QWidget *parent)
        return popup_;
 }
 
-QRectF Trace::label_rect(int right) const
+QRectF Trace::label_rect(const QRectF &rect) const
 {
-       using pv::view::View;
-
        QFontMetrics m(QApplication::font());
        const QSize text_size(
-               m.boundingRect(QRect(), 0, name_).width(),
-               m.boundingRect(QRect(), 0, "Tg").height());
+               m.boundingRect(QRect(), 0, base_->name()).width(), m.height());
        const QSizeF label_size(
-               text_size.width() + View::LabelPadding.width() * 2,
-               ceilf((text_size.height() + View::LabelPadding.height() * 2) / 2) * 2);
+               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(
-               right - half_height - label_size.width() - 0.5,
+               rect.right() - half_height - label_size.width() - 0.5,
                get_visual_y() + 0.5f - half_height,
                label_size.width() + half_height,
                label_size.height());
 }
 
-QColor Trace::get_text_colour() const
+void Trace::paint_back(QPainter &p, const ViewItemPaintParams &pp)
 {
-       return (colour_.lightness() > 64) ? Qt::black : Qt::white;
+       if (coloured_bg_)
+               p.setBrush(base_->bgcolour());
+       else
+               p.setBrush(bgcolour_state_ ? BrightGrayBGColour : DarkGrayBGColour);
+
+       p.setPen(QPen(Qt::NoPen));
+
+       const std::pair<int, int> extents = v_extents();
+
+       const int x = 0;
+       const int y = get_visual_y() + extents.first;
+       const int w = pp.right() - pp.left();
+       const int h = extents.second - extents.first;
+
+       p.drawRect(x, y, w, h);
 }
 
-void Trace::paint_axis(QPainter &p, int y, int left, int right)
+void Trace::paint_axis(QPainter &p, const ViewItemPaintParams &pp, int y)
 {
+       p.setRenderHint(QPainter::Antialiasing, false);
+
        p.setPen(AxisPen);
-       p.drawLine(QPointF(left, y + 0.5f), QPointF(right, y + 0.5f));
+       p.drawLine(QPointF(pp.left(), y), QPointF(pp.right(), y));
+
+       p.setRenderHint(QPainter::Antialiasing, true);
 }
 
 void Trace::add_colour_option(QWidget *parent, QFormLayout *form)
@@ -180,9 +191,9 @@ void Trace::add_colour_option(QWidget *parent, QFormLayout *form)
        ColourButton *const colour_button = new ColourButton(
                TracePalette::Rows, TracePalette::Cols, parent);
        colour_button->set_palette(TracePalette::Colours);
-       colour_button->set_colour(colour_);
+       colour_button->set_colour(base_->colour());
        connect(colour_button, SIGNAL(selected(const QColor&)),
-               this, SLOT(on_colour_changed(const QColor&)));
+               this, SLOT(on_colouredit_changed(const QColor&)));
 
        form->addRow(tr("Colour"), colour_button);
 }
@@ -192,10 +203,14 @@ void Trace::create_popup_form()
        // Clear the layout
 
        // Transfer the layout and the child widgets to a temporary widget
-       // which then goes out of scope destroying the layout and all the child
-       // widgets.
-       if (popup_form_)
-               QWidget().setLayout(popup_form_);
+       // 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_);
@@ -206,35 +221,62 @@ void Trace::create_popup_form()
 void Trace::populate_popup_form(QWidget *parent, QFormLayout *form)
 {
        QLineEdit *const name_edit = new QLineEdit(parent);
-       name_edit->setText(name_);
+       name_edit->setText(base_->name());
        connect(name_edit, SIGNAL(textChanged(const QString&)),
-               this, SLOT(on_text_changed(const QString&)));
+               this, SLOT(on_nameedit_changed(const QString&)));
        form->addRow(tr("Name"), name_edit);
 
        add_colour_option(parent, form);
 }
 
-void Trace::on_popup_closed()
+void Trace::set_name(QString name)
 {
-       popup_ = NULL;
-       popup_form_ = NULL;
+       base_->set_name(name);
 }
 
-void Trace::on_text_changed(const QString &text)
+void Trace::set_colour(QColor colour)
 {
-       set_name(text);
+       base_->set_colour(colour);
+}
 
-       if (owner_)
+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)
 {
-       set_colour(colour);
+       /* This event handler is called by SignalBase when the colour was changed there */
+       (void)colour;
 
        if (owner_)
-               owner_->appearance_changed(true, false);
+               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 view
+} // namespace TraceView
+} // namespace views
 } // namespace pv