TabularDecView: Remove unnecessary stuff

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

diff --git a/pv/views/trace/view.cpp b/pv/views/trace/view.cpp
index 227fadfdb4197c334d084dd9a19edb37e4728181..0a51a96fb5398a590997e558a9fc7427c9e3679b 100644 (file)
--- a/pv/views/trace/view.cpp
+++ b/pv/views/trace/view.cpp
@@ -52,6 +52,7 @@
 #include "view.hpp"
 #include "viewport.hpp"
 
+#include "pv/metadata_obj.hpp"
 #include "pv/data/logic.hpp"
 #include "pv/data/logicsegment.hpp"
 #include "pv/devices/device.hpp"
@@ -182,6 +183,12 @@ View::View(Session &session, bool is_main_view, QMainWindow *parent) :
 
        GlobalSettings::add_change_handler(this);
 
+       // Set up metadata objects and event handlers
+       if (is_main_view)
+               session_.metadata_obj_manager()->create_object(MetadataObjMainViewRange);
+
+
+       // Set up UI event handlers
        connect(scrollarea_->horizontalScrollBar(), SIGNAL(valueChanged(int)),
                this, SLOT(h_scroll_value_changed(int)));
        connect(scrollarea_->verticalScrollBar(), SIGNAL(valueChanged(int)),
@@ -525,6 +532,22 @@ void View::set_offset(const pv::util::Timestamp& offset, bool force_update)
        if ((offset_ != offset) || force_update) {
                offset_ = offset;
                ruler_offset_ = offset_ + zero_offset_;
+
+               const int w = viewport_->width();
+               if (w > 0) {
+                       const double samplerate = session_.get_samplerate();
+                       // Note: sample_num = time * samplerate
+                       // Note: samples_per_pixel = samplerate * scale
+                       int64_t start_sample = (offset_ * samplerate).convert_to<int64_t>();
+                       int64_t end_sample = (offset_ * samplerate).convert_to<int64_t>() +
+                               (w * session_.get_samplerate() * scale_);
+
+                       MetadataObject* md_obj =
+                               session_.metadata_obj_manager()->find_object_by_type(MetadataObjMainViewRange);
+                       md_obj->set_value(MetadataValueStartSample, QVariant((qlonglong)start_sample));
+                       md_obj->set_value(MetadataValueEndSample, QVariant((qlonglong)end_sample));
+               }
+
                offset_changed();
        }
 }
@@ -783,6 +806,26 @@ void View::zoom_fit(bool gui_state)
        set_scale_offset(scale.convert_to<double>(), extents.first);
 }
 
+void View::focus_on_range(uint64_t start_sample, uint64_t end_sample)
+{
+       assert(viewport_);
+       const int w = viewport_->width();
+       if (w <= 0)
+               return;
+
+       const double samplerate = session_.get_samplerate();
+
+       const uint64_t sample_delta = (end_sample - start_sample);
+
+       // Note: We add 20% margin on the left and 5% on the right
+       const Timestamp delta = (sample_delta * 1.25) / samplerate;
+
+       const Timestamp scale = max(min(delta / w, MaxScale), MinScale);
+       const Timestamp offset = (start_sample - sample_delta * 0.20) / samplerate;
+
+       set_scale_offset(scale.convert_to<double>(), offset);
+}
+
 void View::set_scale_offset(double scale, const Timestamp& offset)
 {
        // Disable sticky scrolling / always zoom to fit when acquisition runs