#include <cassert>
#include <cmath>
#include <algorithm>
+#include <limits>
#include "signal.hpp"
#include "view.hpp"
using std::abs;
using std::back_inserter;
using std::copy;
+using std::dynamic_pointer_cast;
using std::max;
using std::min;
using std::none_of;
+using std::numeric_limits;
using std::shared_ptr;
using std::stable_sort;
using std::vector;
Viewport::Viewport(View &parent) :
ViewWidget(parent),
- mouse_down_valid_(false),
pinch_zoom_active_(false)
{
setAutoFillBackground(true);
shared_ptr<ViewItem> Viewport::get_mouse_over_item(const QPoint &pt)
{
+ const ViewItemPaintParams pp(rect(), view_.scale(), view_.offset());
const vector< shared_ptr<ViewItem> > items(this->items());
for (auto i = items.rbegin(); i != items.rend(); i++)
if ((*i)->enabled() &&
- (*i)->hit_box_rect(rect()).contains(pt))
+ (*i)->hit_box_rect(pp).contains(pt))
return *i;
return nullptr;
}
+void Viewport::item_hover(const shared_ptr<ViewItem> &item)
+{
+ if (item)
+ setCursor(dynamic_pointer_cast<RowItem>(item) ?
+ Qt::SizeVerCursor : Qt::SizeHorCursor);
+ else
+ unsetCursor();
+}
+
+void Viewport::drag()
+{
+ drag_offset_ = view_.offset();
+}
+
+void Viewport::drag_by(const QPoint &delta)
+{
+ if (drag_offset_ == boost::none)
+ return;
+
+ view_.set_scale_offset(view_.scale(),
+ (*drag_offset_ - delta.x() * view_.scale()));
+}
+
+void Viewport::drag_release()
+{
+ drag_offset_ = boost::none;
+}
+
vector< shared_ptr<ViewItem> > Viewport::items()
{
- vector< shared_ptr<ViewItem> > items(view_.begin(), view_.end());
+ vector< shared_ptr<ViewItem> > items;
+ const std::vector< shared_ptr<ViewItem> > view_items(
+ view_.list_by_type<ViewItem>());
+ copy(view_items.begin(), view_items.end(), back_inserter(items));
const vector< shared_ptr<TimeItem> > time_items(view_.time_items());
copy(time_items.begin(), time_items.end(), back_inserter(items));
return items;
if (!pinch_zoom_active_ ||
(event->touchPointStates() & Qt::TouchPointPressed)) {
- pinch_offset0_ = view_.offset() + view_.scale() * touchPoint0.pos().x();
- pinch_offset1_ = view_.offset() + view_.scale() * touchPoint1.pos().x();
+ pinch_offset0_ = (view_.offset() + view_.scale() * touchPoint0.pos().x()).convert_to<double>();
+ pinch_offset1_ = (view_.offset() + view_.scale() * touchPoint1.pos().x()).convert_to<double>();
pinch_zoom_active_ = true;
}
if (touchPoint0.state() & Qt::TouchPointReleased) {
// Primary touch released
- mouse_down_valid_ = false;
+ drag_release();
} else {
// Update the mouse down fields so that continued
// dragging with the primary touch will work correctly
mouse_down_point_ = touchPoint0.pos().toPoint();
- mouse_down_offset_ = view_.offset();
- mouse_down_valid_ = true;
+ drag();
}
}
void Viewport::paintEvent(QPaintEvent*)
{
- vector< shared_ptr<RowItem> > row_items(view_.begin(), view_.end());
+ vector< shared_ptr<RowItem> > row_items(view_.list_by_type<RowItem>());
assert(none_of(row_items.begin(), row_items.end(),
[](const shared_ptr<RowItem> &r) { return !r; }));
stable_sort(row_items.begin(), row_items.end(),
[](const shared_ptr<RowItem> &a, const shared_ptr<RowItem> &b) {
- return a->visual_v_offset() < b->visual_v_offset(); });
+ return a->point(QRect()).y() < b->point(QRect()).y(); });
const vector< shared_ptr<TimeItem> > time_items(view_.time_items());
assert(none_of(time_items.begin(), time_items.end(),
for (const shared_ptr<RowItem> r : row_items)
r->paint_fore(p, pp);
+
+ p.setRenderHint(QPainter::Antialiasing, false);
for (const shared_ptr<TimeItem> t : time_items)
t->paint_fore(p, pp);
p.end();
}
-void Viewport::mousePressEvent(QMouseEvent *event)
-{
- assert(event);
-
- if (event->button() == Qt::LeftButton) {
- mouse_down_point_ = event->pos();
- mouse_down_offset_ = view_.offset();
- mouse_down_valid_ = true;
- }
-}
-
-void Viewport::mouseReleaseEvent(QMouseEvent *event)
-{
- assert(event);
-
- if (event->button() == Qt::LeftButton)
- mouse_down_valid_ = false;
-}
-
-void Viewport::mouseMoveEvent(QMouseEvent *event)
-{
- assert(event);
-
- if (event->buttons() & Qt::LeftButton) {
- if (!mouse_down_valid_) {
- mouse_down_point_ = event->pos();
- mouse_down_offset_ = view_.offset();
- mouse_down_valid_ = true;
- }
-
- view_.set_scale_offset(view_.scale(),
- mouse_down_offset_ +
- (mouse_down_point_ - event->pos()).x() *
- view_.scale());
- }
-}
-
void Viewport::mouseDoubleClickEvent(QMouseEvent *event)
{
assert(event);
view_.zoom(-2.0, event->x());
}
-void Viewport::wheelEvent(QWheelEvent *event)
+void Viewport::wheelEvent(QWheelEvent *e)
{
- assert(event);
-
- if (event->orientation() == Qt::Vertical) {
- // Vertical scrolling is interpreted as zooming in/out
- view_.zoom(event->delta() / 120, event->x());
- } else if (event->orientation() == Qt::Horizontal) {
+ assert(e);
+
+ if (e->orientation() == Qt::Vertical)
+ {
+ if (e->modifiers() & Qt::ControlModifier) {
+ // Vertical scrolling with the control key pressed
+ // is intrepretted as vertical scrolling
+ view_.set_v_offset(-view_.owner_visual_v_offset() -
+ (e->delta() * height()) / (8 * 120));
+ } else {
+ // Vertical scrolling is interpreted as zooming in/out
+ view_.zoom(e->delta() / 120, e->x());
+ }
+ }
+ else if (e->orientation() == Qt::Horizontal)
+ {
// Horizontal scrolling is interpreted as moving left/right
view_.set_scale_offset(view_.scale(),
- event->delta() * view_.scale()
- + view_.offset());
+ e->delta() * view_.scale() + view_.offset());
}
}
projects / pulseview.git / blobdiff