From: Soeren Apel <redacted>
Date: Fri, 14 Jul 2017 16:24:32 +0000 (+0200)
Subject: DecodeTrace: Resize trace when hiding/deleting a stacked PD
X-Git-Url: https://sigrok.org/gitaction?a=commitdiff_plain;h=ded43869b4d6169b7f269af0623ef0a682e5b910;p=pulseview.git

DecodeTrace: Resize trace when hiding/deleting a stacked PD

The trace height depends on DecodeTrace::max_visible_rows_,
which needs to be updated when a stacked PD is hidden or
deleted. In order to do this, we reset max_visible_rows_ to
0 and then request a repaint.
---

diff --git a/pv/views/trace/decodetrace.cpp b/pv/views/trace/decodetrace.cpp
index 9529c50a..b4857336 100644
--- a/pv/views/trace/decodetrace.cpp
+++ b/pv/views/trace/decodetrace.cpp
@@ -950,6 +950,10 @@ void DecodeTrace::on_delete_decoder(int index)
 {
 	decode_signal_->remove_decoder(index);
 
+	// Force re-calculation of the trace height, see paint_mid()
+	max_visible_rows_ = 0;
+	owner_->extents_changed(false, true);
+
 	// Update the popup
 	create_popup_form();
 }
@@ -961,6 +965,12 @@ void DecodeTrace::on_show_hide_decoder(int index)
 	assert(index < (int)decoder_forms_.size());
 	decoder_forms_[index]->set_decoder_visible(state);
 
+	if (!state) {
+		// Force re-calculation of the trace height, see paint_mid()
+		max_visible_rows_ = 0;
+		owner_->extents_changed(false, true);
+	}
+
 	if (owner_)
 		owner_->row_item_appearance_changed(false, true);
 }