TraceView: Only perform "always zoom to fit" for the main view

[pulseview.git] / pv / view / view.cpp

diff --git a/pv/view/view.cpp b/pv/view/view.cpp
index 08dc8828357d0e704a45dc6782411024968a7381..04bb99205636fd50ffe18872f56dd3ba2dcd3bb5 100644 (file)
--- a/pv/view/view.cpp
+++ b/pv/view/view.cpp
@@ -57,6 +57,7 @@
 #include "viewport.hpp"
 
 #include "pv/session.hpp"
+#include "pv/globalsettings.hpp"
 #include "pv/devices/device.hpp"
 #include "pv/data/logic.hpp"
 #include "pv/data/logicsegment.hpp"
@@ -135,8 +136,8 @@ bool CustomAbstractScrollArea::viewportEvent(QEvent *event)
        }
 }
 
-View::View(Session &session, QWidget *parent) :
-       ViewBase(session, parent),
+View::View(Session &session, bool is_main_view, QWidget *parent) :
+       ViewBase(session, is_main_view, parent),
        viewport_(new Viewport(*this)),
        ruler_(new Ruler(*this)),
        header_(new Header(*this)),
@@ -159,6 +160,9 @@ View::View(Session &session, QWidget *parent) :
        saved_v_offset_(0),
        size_finalized_(false)
 {
+       GlobalSettings settings;
+       coloured_bg_ = settings.value(GlobalSettings::Key_View_ColouredBG).toBool();
+
        connect(scrollarea_.horizontalScrollBar(), SIGNAL(valueChanged(int)),
                this, SLOT(h_scroll_value_changed(int)));
        connect(scrollarea_.verticalScrollBar(), SIGNAL(valueChanged(int)),
@@ -563,6 +567,11 @@ void View::enable_sticky_scrolling(bool state)
        sticky_scrolling_ = state;
 }
 
+void View::toggle_sticky_scrolling(void)
+{
+       sticky_scrolling_ = !sticky_scrolling_;
+}
+
 void View::enable_coloured_bg(bool state)
 {
        const vector<shared_ptr<TraceTreeItem>> items(
@@ -827,15 +836,6 @@ void View::set_scroll_default()
 
        const QSize areaSize = viewport_->size();
 
-       // Special case: when starting up and the window isn't visible yet,
-       // areaSize is [0, 0]. In this case we want to be called again later
-       if ((areaSize.height() == 0) || (!size_finalized_)) {
-               scroll_needs_defaults_ = true;
-               return;
-       } else {
-               scroll_needs_defaults_ = false;
-       }
-
        const pair<int, int> extents = v_extents();
        const int trace_height = extents.second - extents.first;
 
@@ -847,6 +847,11 @@ void View::set_scroll_default()
        else
                // Put the first trace at the top, letting the bottom ones overflow
                set_v_offset(extents.first);
+
+       // If we're not sure whether setting the defaults worked as
+       // the window wasn't set up entirely yet, we want to be called
+       // again later to make sure
+       scroll_needs_defaults_ = !size_finalized_;
 }
 
 void View::update_layout()
@@ -1196,11 +1201,11 @@ void View::signals_changed()
                }
 
        // Add and position the pending top levels items
+       int offset = v_extents().second;
        for (auto item : new_top_level_items) {
                add_child_item(item);
 
                // Position the item after the last item or at the top if there is none
-               int offset = v_extents().second;
                const pair<int, int> extents = item->v_extents();
 
                if (item->enabled())
@@ -1227,6 +1232,16 @@ void View::capture_state_updated(int state)
                set_time_unit(util::TimeUnit::Samples);
 
                trigger_markers_.clear();
+
+               // Activate "always zoom to fit" if the setting is enabled and we're
+               // the main view of this session (other trace views may be used for
+               // zooming and we don't want to mess them up)
+               GlobalSettings settings;
+               bool state = settings.value(GlobalSettings::Key_View_AlwaysZoomToFit).toBool();
+               if (is_main_view_ && state) {
+                       always_zoom_to_fit_ = true;
+                       always_zoom_to_fit_changed(always_zoom_to_fit_);
+               }
        }
 
        if (state == Session::Stopped) {
@@ -1237,7 +1252,7 @@ void View::capture_state_updated(int state)
                // Reset "always zoom to fit", the acquisition has stopped
                if (always_zoom_to_fit_) {
                        always_zoom_to_fit_ = false;
-                       always_zoom_to_fit_changed(false);
+                       always_zoom_to_fit_changed(always_zoom_to_fit_);
                }
        }
 }