* 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
+ * along with this program; if not, see <http://www.gnu.org/licenses/>.
*/
#include <cassert>
#include <cmath>
#include <algorithm>
+#include <limits>
#include "signal.hpp"
#include "view.hpp"
#include <QMouseEvent>
+#include <QDebug>
+
using std::abs;
using std::back_inserter;
using std::copy;
-using std::max;
-using std::min;
-using std::none_of;
+using std::dynamic_pointer_cast;
+using std::none_of; // Used in assert()s.
using std::shared_ptr;
using std::stable_sort;
using std::vector;
namespace pv {
-namespace view {
+namespace views {
+namespace TraceView {
Viewport::Viewport(View &parent) :
ViewWidget(parent),
- mouse_down_valid_(false),
pinch_zoom_active_(false)
{
- setAttribute(Qt::WA_AcceptTouchEvents, true);
-
setAutoFillBackground(true);
setBackgroundRole(QPalette::Base);
}
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))
+ if ((*i)->enabled() && (*i)->hit_box_rect(pp).contains(pt))
return *i;
return nullptr;
}
+void Viewport::item_hover(const shared_ptr<ViewItem> &item)
+{
+ if (item && item->is_draggable())
+ setCursor(dynamic_pointer_cast<RowItem>(item) ?
+ Qt::SizeVerCursor : Qt::SizeHorCursor);
+ else
+ unsetCursor();
+}
+
+void Viewport::drag()
+{
+ drag_offset_ = view_.offset();
+ drag_v_offset_ = view_.owner_visual_v_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()));
+
+ view_.set_v_offset(-drag_v_offset_ - delta.y());
+}
+
+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 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;
}
+bool Viewport::touch_event(QTouchEvent *event)
+{
+ QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints();
+
+ if (touchPoints.count() != 2) {
+ pinch_zoom_active_ = false;
+ return false;
+ }
+
+ const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first();
+ const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last();
+
+ if (!pinch_zoom_active_ ||
+ (event->touchPointStates() & Qt::TouchPointPressed)) {
+ 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;
+ }
+
+ double w = touchPoint1.pos().x() - touchPoint0.pos().x();
+ if (abs(w) >= 1.0) {
+ const double scale =
+ fabs((pinch_offset1_ - pinch_offset0_) / w);
+ double offset = pinch_offset0_ - touchPoint0.pos().x() * scale;
+ if (scale > 0)
+ view_.set_scale_offset(scale, offset);
+ }
+
+ if (event->touchPointStates() & Qt::TouchPointReleased) {
+ pinch_zoom_active_ = false;
+
+ if (touchPoint0.state() & Qt::TouchPointReleased) {
+ // Primary touch released
+ 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();
+ drag();
+ }
+ }
+
+ return true;
+}
+
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();
}
-bool Viewport::event(QEvent *event)
-{
- switch (event->type()) {
- case QEvent::TouchBegin:
- case QEvent::TouchUpdate:
- case QEvent::TouchEnd:
- if (touchEvent(static_cast<QTouchEvent *>(event)))
- return true;
- break;
-
- default:
- break;
- }
-
- return QWidget::event(event);
-}
-
-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);
assert(event);
if (event->orientation() == Qt::Vertical) {
- // Vertical scrolling is interpreted as zooming in/out
- view_.zoom(event->delta() / 120, event->x());
+ if (event->modifiers() & Qt::ControlModifier) {
+ // Vertical scrolling with the control key pressed
+ // is intrepretted as vertical scrolling
+ view_.set_v_offset(-view_.owner_visual_v_offset() -
+ (event->delta() * height()) / (8 * 120));
+ } else {
+ // Vertical scrolling is interpreted as zooming in/out
+ view_.zoom(event->delta() / 120, event->x());
+ }
} else if (event->orientation() == Qt::Horizontal) {
// Horizontal scrolling is interpreted as moving left/right
view_.set_scale_offset(view_.scale(),
- event->delta() * view_.scale()
- + view_.offset());
- }
-}
-
-bool Viewport::touchEvent(QTouchEvent *event)
-{
- QList<QTouchEvent::TouchPoint> touchPoints = event->touchPoints();
-
- if (touchPoints.count() != 2) {
- pinch_zoom_active_ = false;
- return false;
- }
-
- const QTouchEvent::TouchPoint &touchPoint0 = touchPoints.first();
- const QTouchEvent::TouchPoint &touchPoint1 = touchPoints.last();
-
- 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_zoom_active_ = true;
- }
-
- double w = touchPoint1.pos().x() - touchPoint0.pos().x();
- if (abs(w) >= 1.0) {
- double scale = (pinch_offset1_ - pinch_offset0_) / w;
- if (scale < 0)
- scale = -scale;
- double offset = pinch_offset0_ - touchPoint0.pos().x() * scale;
- if (scale > 0)
- view_.set_scale_offset(scale, offset);
+ event->delta() * view_.scale() + view_.offset());
}
-
- if (event->touchPointStates() & Qt::TouchPointReleased) {
- pinch_zoom_active_ = false;
-
- if (touchPoint0.state() & Qt::TouchPointReleased) {
- // Primary touch released
- mouse_down_valid_ = false;
- } 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;
- }
- }
-
- return true;
}
-} // namespace view
+} // namespace TraceView
+} // namespace views
} // namespace pv
projects / pulseview.git / blobdiff