From dba3fbf1f131fd4c9500e61a8594d96c32ace9ec Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=D0=9F=D0=B5=D0=BB=D0=B8=D0=BF=D0=B5=D0=BD=D0=BA=D0=BE=20?=
 =?UTF-8?q?=D0=98=D0=B2=D0=B0=D0=BD?= <peri4ko@yandex.ru>
Date: Sun, 3 Mar 2019 15:45:57 +0000
Subject: [PATCH] git-svn-id: svn://db.shs.com.ru/libs@506
 a8b55f48-bf90-11e4-a774-851b48703e85

---
 qad/blockview/blockeditor.ui |  3 +++
 qad/blockview/blockview.cpp  | 38 ++++++++++++++++++++++++++----------
 qad/blockview/blockview.h    |  3 ++-
 3 files changed, 33 insertions(+), 11 deletions(-)

diff --git a/qad/blockview/blockeditor.ui b/qad/blockview/blockeditor.ui
index d6ab517..29044fc 100644
--- a/qad/blockview/blockeditor.ui
+++ b/qad/blockview/blockeditor.ui
@@ -315,6 +315,9 @@
          </item>
          <item>
           <widget class="BlockView" name="blockView">
+           <property name="navigateAnimationEnabled">
+            <bool>true</bool>
+           </property>
            <property name="miniMap" stdset="0">
             <bool>false</bool>
            </property>
diff --git a/qad/blockview/blockview.cpp b/qad/blockview/blockview.cpp
index c7cd095..3aa7007 100644
--- a/qad/blockview/blockview.cpp
+++ b/qad/blockview/blockview.cpp
@@ -46,7 +46,7 @@ void BlockView::_init() {
 	cur_scl = thumb_scl = prev_app_scale = 1.;
 	_talpha = 0.;
 	ae_enabled = is_block_anim = true;
-	is_nav_anim = false;
+	is_nav_anim = true;
 	nav_prev_aa = nav_prev_imaa = nav_prev_grid = true;
 	thumb_size = QSizeF(200, 200);
 	if (scene() == 0) {
@@ -667,7 +667,8 @@ void BlockView::wheelEvent(QWheelEvent * e) {
 		//r.setHeight(r.height() * scl);
 		r.setHeight(r.width() * vh / vw);
 		r.translate(cx * (pw - r.width()), cy * (ph - r.height()));
-		animateNav(r);
+		animateNav(r, scl);
+		//_setNav(r);
 		return;
 	}
 	if (!wheel_zoom) QGraphicsView::wheelEvent(e);
@@ -1620,26 +1621,31 @@ QList<QGraphicsItem * > BlockView::selectedDecors() const {
 }
 
 
-QRectF BlockView::_nav() const {
-	return mapToScene(viewport()->rect()).boundingRect();
-}
-
-
-void BlockView::animateNav(QRectF d) {
+void BlockView::animateNav(QRectF d, double scl) {
 	nav_target = d;
 	if (is_nav_anim) {
+		if (anim_el.elapsed() < 10 || (qAbs<double>(scl - 1.) <= 0.1)) {
+			if (nav_anim.state() == QAbstractAnimation::Running) {
+				nav_anim.stop();
+				_navFinished();
+			}
+			_setNav(d);
+			anim_el.restart();
+			return;
+		}
 		if (nav_anim.state() != QAbstractAnimation::Running) {
 			nav_prev_aa = renderHints().testFlag(QPainter::Antialiasing);
 			nav_prev_imaa = renderHints().testFlag(QPainter::SmoothPixmapTransform);
 			nav_prev_grid = isGridVisible();
 			setRenderHint(QPainter::Antialiasing, false);
-			setRenderHint(QPainter::Antialiasing, false);
+			setRenderHint(QPainter::SmoothPixmapTransform, false);
 			setGridVisible(false);
 		}
 		nav_anim.stop();
 		nav_anim.setStartValue(_nav());
 		nav_anim.setEndValue(d);
 		nav_anim.start();
+		anim_el.restart();
 	} else
 		_setNav(d);
 }
@@ -1815,7 +1821,19 @@ void BlockView::_setThumb(double v) {
 
 
 void BlockView::_setNav(QRectF v) {
-	QGraphicsView::fitInView(v);
+	//QGraphicsView::fitInView(v);
+	double vw = viewport()->width(), vh = viewport()->height();
+	if (vw < 1. || vh < 1. || v.isEmpty()) return;
+	QTransform matrix;
+	double scl = qMin(vw / v.width(), vh / v.height());
+	matrix.scale(scl, scl);
+	QGraphicsView::setTransform(matrix);
+	QGraphicsView::centerOn(v.center());
+}
+
+
+QRectF BlockView::_nav() const {
+	return mapToScene(viewport()->rect()).boundingRect();
 }
 
 
diff --git a/qad/blockview/blockview.h b/qad/blockview/blockview.h
index 0c7010e..71e9cd0 100644
--- a/qad/blockview/blockview.h
+++ b/qad/blockview/blockview.h
@@ -153,7 +153,7 @@ protected:
 	void hideTmpBuses(bool clear = true);
 	double _thumb() const {return _talpha;}
 	QRectF _nav() const;
-	void animateNav(QRectF d);
+	void animateNav(QRectF d, double scl = 0.);
 	void scrollFromThumb();
 	void deleteCopyTemp();
 	void emitActionEvent(BlockItemBase::Action action, QList<QGraphicsItem * > items);
@@ -188,6 +188,7 @@ protected:
 	QWidget widget_thumb;
 	Qt::KeyboardModifiers mm_mods;
 	QPropertyAnimation thumb_anim, nav_anim;
+	QTime anim_el;
 	int timer_thumb, thumb_hide_delay, thick;
 	bool mm_drag, new_bus, new_branch, moved, mm_cancel, iconnect, mm_copy, mm_thumb, ae_enabled, is_nav_anim, is_block_anim, move_bus_point;
 	bool grid_visible, grid_snap, pm_connect, navigation, m_connect, m_trace_with_buses, m_pin_mc, minimap, prev_tcb, wheel_zoom;