diff options
Diffstat (limited to 'spline-widget')
| -rw-r--r-- | spline-widget/spline-widget.cpp | 113 | ||||
| -rw-r--r-- | spline-widget/spline-widget.hpp | 4 |
2 files changed, 53 insertions, 64 deletions
diff --git a/spline-widget/spline-widget.cpp b/spline-widget/spline-widget.cpp index 21c52d63..105efb77 100644 --- a/spline-widget/spline-widget.cpp +++ b/spline-widget/spline-widget.cpp @@ -19,6 +19,8 @@ #include <QStyle> #include <QMouseEvent> +#include <QDebug> + #include <cmath> #include <algorithm> @@ -139,7 +141,7 @@ void spline_widget::drawBackground() // vertical grid for (int i = 0; i <= maxx; i += ystep) { - const int x = int(std::round(pixel_bounds.x() + i * c.x())); + const int x = iround(pixel_bounds.x() + i * c.x()); drawLine(painter, QPoint(x, pixel_bounds.y()), QPoint(x, pixel_bounds.y() + pixel_bounds.height()), @@ -166,11 +168,11 @@ void spline_widget::drawFunction() { const QPen pen(Qt::white, 1, Qt::SolidLine, Qt::FlatCap); const QPointF prev_ = point_to_pixel(QPointF(0, 0)); - QPoint prev(int(std::round(prev_.x())), int(std::round(prev_.y()))); + QPoint prev(iround(prev_.x()), iround(prev_.y())); for (int i = 0; i < points.size(); i++) { const QPointF tmp_ = point_to_pixel(points[i]); - const QPoint tmp(int(std::round(tmp_.x())), int(std::round(tmp_.y()))); + const QPoint tmp(iround(tmp_.x()), iround(tmp_.y())); drawLine(painter, prev, tmp, pen); prev = tmp; } @@ -286,6 +288,8 @@ void spline_widget::mousePressEvent(QMouseEvent *e) if (!is_in_bounds(e->pos())) return; + const int point_pixel_closeness_limit = get_closeness_limit(); + points_t points = _config->getPoints(); if (e->button() == Qt::LeftButton) { @@ -305,13 +309,13 @@ void spline_widget::mousePressEvent(QMouseEvent *e) if (!bTouchingPoint) { bool too_close = false; - const auto pos = e->pos(); + const QPoint pos = e->pos(); for (int i = 0; i < points.size(); i++) { const QPointF pt = point_to_pixel(points[i]); const qreal x = std::fabs(pt.x() - pos.x()); - if (point_closeness_limit >= x) + if (point_pixel_closeness_limit >= x) { too_close = true; break; @@ -360,62 +364,45 @@ void spline_widget::mouseMoveEvent(QMouseEvent *e) return; } - points_t points = _config->getPoints(); + const int i = moving_control_point_idx; + const points_t points = _config->getPoints(); + const int sz = points.size(); - if (moving_control_point_idx >= 0 && moving_control_point_idx < points.size()) + if (i >= 0 && i < sz) { - const int idx = moving_control_point_idx; - - setCursor(Qt::ClosedHandCursor); - + const int point_pixel_closeness_limit = get_closeness_limit(); bool overlap = false; - QPoint pix = e->pos(); + const QPoint pix = progn( + // takes snap into account + const QPointF pix_ = point_to_pixel(pixel_coord_to_point(e->pos())); + return QPoint(int(pix_.x()), int(pix_.y())); + ); + QPointF new_pt = pixel_coord_to_point(pix); - for (int i = 0; i < 2; i++) + if (i + 1 < points.size()) { - bool bad = false; - if (idx + 1 < points.size()) - { - auto other = points[idx+1]; - auto other_pix = point_to_pixel(other); - bad = pix.x() + point_closeness_limit > other_pix.x(); - if (i == 0 && bad) - { - pix.setX(int(std::round(other_pix.x() - point_closeness_limit))); - new_pt = pixel_coord_to_point(pix); - } - else - overlap |= bad; - } - if (idx != 0) - { - const QPointF other = points[idx-1]; - const QPointF other_pix = point_to_pixel(other); - bad = pix.x() - point_closeness_limit < other_pix.x(); - if (i == 0 && bad) - { - pix.setX(int(std::round(other_pix.x() + point_closeness_limit))); - new_pt = pixel_coord_to_point(pix); - } - else - overlap |= bad; - } - if (!bad) - break; + const QPointF other_pix = point_to_pixel(points[i+1]); + overlap |= other_pix.x() - pix.x() < point_pixel_closeness_limit; } - - if (!overlap) + if (i != 0) { - _config->movePoint(idx, new_pt); - _draw_function = true; - - show_tooltip(pix, new_pt); - update(); + const QPointF other_pix = point_to_pixel(points[i-1]); + overlap |= pix.x() - other_pix.x() < point_pixel_closeness_limit; } + + if (overlap) + new_pt.setX(points[i].x()); + + _config->movePoint(i, new_pt); + _draw_function = true; + + setCursor(Qt::ClosedHandCursor); + show_tooltip(pix, new_pt); + update(); } - else + else if (sz) { int i; bool is_on_point = is_on_pt(e->pos(), &i); @@ -446,8 +433,6 @@ void spline_widget::mouseReleaseEvent(QMouseEvent *e) if (e->button() == Qt::LeftButton) { - //mouseMoveEvent(e); - { if (is_on_pt(e->pos(), nullptr)) setCursor(Qt::CrossCursor); @@ -472,12 +457,17 @@ void spline_widget::reload_spline() update_range(); } +int spline_widget::get_closeness_limit() +{ + return std::max(iround(snap_x * c.x()), 1); +} + void spline_widget::show_tooltip(const QPoint& pos, const QPointF& value_, const QString& prefix) { const QPointF value = QPoint(0, 0) == value_ ? pixel_coord_to_point(pos) : value_; double x = value.x(), y = value.y(); - const int x_ = int(std::round(x)), y_ = int(std::round(y)); + const int x_ = iround(x), y_ = iround(y); using std::fabs; @@ -500,11 +490,12 @@ void spline_widget::show_tooltip(const QPoint& pos, const QPointF& value_, const bool spline_widget::is_in_bounds(const QPoint& pos) const { - static constexpr int grace = 2; - return !(pos.x() + grace < pixel_bounds.left() || - pos.x() - grace > pixel_bounds.right() || - pos.y() + grace < pixel_bounds.top() || - pos.y() - grace > pixel_bounds.bottom()); + static constexpr int grace = point_size * 3; + static constexpr int bottom_grace = int(point_size * 1.5); + return (pos.x() + grace > pixel_bounds.left() && + pos.x() - grace < pixel_bounds.right() && + pos.y() + grace > pixel_bounds.top() && + pos.y() - bottom_grace < pixel_bounds.bottom()); } void spline_widget::update_range() @@ -545,8 +536,6 @@ void spline_widget::focusOutEvent(QFocusEvent* e) QPointF spline_widget::pixel_coord_to_point(const QPoint& point) { - using std::round; - qreal x = (point.x() - pixel_bounds.x()) / c.x(); qreal y = (pixel_bounds.height() - point.y() + pixel_bounds.y()) / c.y(); @@ -580,8 +569,8 @@ QPointF spline_widget::pixel_coord_to_point(const QPoint& point) QPointF spline_widget::point_to_pixel(const QPointF& point) { - return QPoint(int(std::round(pixel_bounds.x() + point.x() * c.x())), - int(std::round(pixel_bounds.y() + pixel_bounds.height() - point.y() * c.y()))); + return QPoint(iround(pixel_bounds.x() + point.x() * c.x()), + iround(pixel_bounds.y() + pixel_bounds.height() - point.y() * c.y())); } void spline_widget::resizeEvent(QResizeEvent *) diff --git a/spline-widget/spline-widget.hpp b/spline-widget/spline-widget.hpp index d94d2e8e..8886016c 100644 --- a/spline-widget/spline-widget.hpp +++ b/spline-widget/spline-widget.hpp @@ -56,6 +56,7 @@ protected slots: void mouseReleaseEvent(QMouseEvent *e) override; void reload_spline(); private: + int get_closeness_limit(); void show_tooltip(const QPoint& pos, const QPointF& value = QPointF(0, 0), const QString& prefix = QStringLiteral("")); bool is_in_bounds(const QPoint& pos) const; @@ -67,7 +68,7 @@ private: void focusOutEvent(QFocusEvent*e) override; void resizeEvent(QResizeEvent *) override; -private: + bool is_on_pt(const QPoint& pos, int* pt = nullptr); void update_range(); QPointF pixel_coord_to_point(const QPoint& point); @@ -91,5 +92,4 @@ private: static constexpr int line_length_pixels = 3; static constexpr int point_size = 4; - static constexpr int point_closeness_limit = 7; }; |