pulseview/0007-DecodeTrace-Try-to-kee...

73 lines
2.5 KiB
Diff

From 7352be721b90b630efd742b53e1a0ea16bb834b8 Mon Sep 17 00:00:00 2001
From: Soeren Apel <soeren@apelpie.net>
Date: Thu, 4 Feb 2016 22:38:34 +0100
Subject: [PATCH 07/13] DecodeTrace: Try to keep annotation labels within the
view
Up until now, annotation labels were always drawn centered,
even if the annotation was very wide and mostly off-screen.
This resulted in annotation labels being out of view, even
if there would be enough space to draw it within the view.
This patch fixes this.
---
pv/view/decodetrace.cpp | 15 +++++++++++----
pv/view/decodetrace.hpp | 2 +-
2 files changed, 12 insertions(+), 5 deletions(-)
diff --git a/pv/view/decodetrace.cpp b/pv/view/decodetrace.cpp
index e7ffbbb..eb1f7f8 100644
--- a/pv/view/decodetrace.cpp
+++ b/pv/view/decodetrace.cpp
@@ -425,7 +425,7 @@ void DecodeTrace::draw_annotation(const pv::data::decode::Annotation &a,
if (a.start_sample() == a.end_sample())
draw_instant(a, p, fill, outline, h, start, y);
else
- draw_range(a, p, fill, outline, h, start, end, y);
+ draw_range(a, p, fill, outline, h, start, end, y, pp);
}
void DecodeTrace::draw_annotation_block(
@@ -485,7 +485,7 @@ void DecodeTrace::draw_instant(const pv::data::decode::Annotation &a, QPainter &
void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
QColor fill, QColor outline, int h, double start,
- double end, int y) const
+ double end, int y, const ViewItemPaintParams &pp) const
{
const double top = y + .5 - h / 2;
const double bottom = y + .5 + h / 2;
@@ -516,8 +516,15 @@ void DecodeTrace::draw_range(const pv::data::decode::Annotation &a, QPainter &p,
if (annotations.empty())
return;
- QRectF rect(start + cap_width, y - h / 2,
- end - start - cap_width * 2, h);
+ const int ann_start = start + cap_width;
+ const int ann_end = end - cap_width;
+
+ const int real_start = std::max(ann_start, pp.left());
+ const int real_end = std::min(ann_end, pp.right());
+
+ const int real_width = real_end - real_start;
+
+ QRectF rect(real_start, y - h / 2, real_width, h);
if (rect.width() <= 4)
return;
diff --git a/pv/view/decodetrace.hpp b/pv/view/decodetrace.hpp
index 4964a95..af91518 100644
--- a/pv/view/decodetrace.hpp
+++ b/pv/view/decodetrace.hpp
@@ -141,7 +141,7 @@ private:
void draw_range(const pv::data::decode::Annotation &a, QPainter &p,
QColor fill, QColor outline, int h, double start,
- double end, int y) const;
+ double end, int y, const ViewItemPaintParams &pp) const;
void draw_error(QPainter &p, const QString &message,
const ViewItemPaintParams &pp);
--
2.4.3