From b6bf57a13b5e4d3dd469b0fa8790d341eb4f1304 Mon Sep 17 00:00:00 2001
From: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
Date: Sun, 24 Dec 2017 14:35:59 +0100
Subject: Introduce negate-toggle buttons to filter lists

Introduce toggle buttons which mean "filter all dives except
those fulfilling the selected criteria".

The old code used to check for rowCount() == 0. This should never happen,
because there is always a row "empty field". This check was moved into
the preamble of the functions to seperate it from the actual logic.

Fixes #435

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
---
 desktop-widgets/listfilter.ui     | 10 ++++++++++
 desktop-widgets/simplewidgets.cpp |  1 +
 2 files changed, 11 insertions(+)

(limited to 'desktop-widgets')

diff --git a/desktop-widgets/listfilter.ui b/desktop-widgets/listfilter.ui
index 48d813d21..b1d717bf0 100644
--- a/desktop-widgets/listfilter.ui
+++ b/desktop-widgets/listfilter.ui
@@ -51,6 +51,16 @@
        </property>
       </widget>
      </item>
+     <item>
+      <widget class="QToolButton" name="notButton">
+       <property name="text">
+        <string>¬</string>
+       </property>
+       <property name="checkable">
+        <bool>true</bool>
+       </property>
+      </widget>
+     </item>
     </layout>
    </item>
    <item>
diff --git a/desktop-widgets/simplewidgets.cpp b/desktop-widgets/simplewidgets.cpp
index b63349819..f8cd96943 100644
--- a/desktop-widgets/simplewidgets.cpp
+++ b/desktop-widgets/simplewidgets.cpp
@@ -516,6 +516,7 @@ FilterBase::FilterBase(FilterModelBase *model_, QWidget *parent) : QWidget(paren
 	filter->setSourceModel(model);
 	filter->setFilterCaseSensitivity(Qt::CaseInsensitive);
 	connect(ui.filterInternalList, SIGNAL(textChanged(QString)), filter, SLOT(setFilterFixedString(QString)));
+	connect(ui.notButton, &QToolButton::toggled, model, &FilterModelBase::setNegate);
 	ui.filterList->setModel(filter);
 
 	addContextMenuEntry(tr("Select All"), &FilterModelBase::selectAll);
-- 
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