From a455d213569903394a6b46f2e85a62c4cdaf284d Mon Sep 17 00:00:00 2001
From: Martin Rotter <rotter.martinos@gmail.com>
Date: Sun, 19 Jan 2014 12:22:50 +0100
Subject: [PATCH] Added close buttons to "closable" tabs.

---
 src/gui/tabbar.cpp    | 43 +++++++++++++++++++++++++++++++++++++++++++
 src/gui/tabbar.h      | 15 ++++++++++-----
 src/gui/tabwidget.cpp |  4 ++--
 src/main.cpp          |  3 +++
 4 files changed, 58 insertions(+), 7 deletions(-)

diff --git a/src/gui/tabbar.cpp b/src/gui/tabbar.cpp
index e91de5aff..24de0e670 100644
--- a/src/gui/tabbar.cpp
+++ b/src/gui/tabbar.cpp
@@ -16,6 +16,49 @@ TabBar::~TabBar() {
   qDebug("Destroying TabBar instance.");
 }
 
+void TabBar::setTabType(int index, const TabBar::TabType &type) {
+  switch (type) {
+    case TabBar::Closable: {
+      QToolButton *close_button = new QToolButton();
+
+      close_button->setIcon(IconThemeFactory::instance()->fromTheme("application-exit"));
+      close_button->setToolTip(tr("Close this tab."));
+      close_button->setText(tr("Close tab"));
+      close_button->setSizePolicy(QSizePolicy::Minimum, QSizePolicy::Minimum);
+      close_button->setFixedSize(iconSize());
+
+      connect(close_button, SIGNAL(clicked()),
+              this, SLOT(closeTabViaButton()));
+
+      setTabButton(index, QTabBar::RightSide, close_button);
+      break;
+    }
+
+    case TabBar::NonClosable:
+    case TabBar::FeedReader:
+    default:
+      setTabButton(index, QTabBar::RightSide, 0);
+      break;
+  }
+
+  setTabData(index, QVariant(type));
+}
+
+void TabBar::closeTabViaButton() {
+  QToolButton *close_button = qobject_cast<QToolButton*>(sender());
+
+  if (close_button != NULL) {
+    // Find index of tab for this close button.
+    for (int i = 0; i < count(); i++) {
+      if (tabButton(i, QTabBar::RightSide) == close_button) {
+        emit tabCloseRequested(i);
+
+        return;
+      }
+    }
+  }
+}
+
 void TabBar::wheelEvent(QWheelEvent *event) {
   int current_index = currentIndex();
   int number_of_tabs = count();
diff --git a/src/gui/tabbar.h b/src/gui/tabbar.h
index ee7bfde01..beb7176bd 100644
--- a/src/gui/tabbar.h
+++ b/src/gui/tabbar.h
@@ -1,8 +1,11 @@
 #ifndef TABBAR_H
 #define TABBAR_H
 
+#include "gui/iconthemefactory.h"
+
 #include <QTabBar>
 #include <QVariant>
+#include <QToolButton>
 
 
 class TabBar : public QTabBar {
@@ -20,14 +23,16 @@ class TabBar : public QTabBar {
     virtual ~TabBar();
 
     // Getter/setter for tab type.
-    inline void setTabType(int index, const TabBar::TabType &type) {
-      setTabData(index, QVariant(type));
-    }
+    void setTabType(int index, const TabBar::TabType &type);
 
     inline TabBar::TabType tabType(int index) {
       return static_cast<TabBar::TabType>(tabData(index).value<int>());
     }
-    
+
+  protected slots:
+    // Called when user selects to close tab via close button.
+    void closeTabViaButton();
+
   protected:
     // Reimplementations.
     void mouseDoubleClickEvent(QMouseEvent *event);
@@ -36,7 +41,7 @@ class TabBar : public QTabBar {
 
   signals:
     // Emmited if empty space on tab bar is double clicked.
-    void emptySpaceDoubleClicked(); 
+    void emptySpaceDoubleClicked();
 };
 
 #endif // TABBAR_H
diff --git a/src/gui/tabwidget.cpp b/src/gui/tabwidget.cpp
index cae2905a4..73b490cc0 100644
--- a/src/gui/tabwidget.cpp
+++ b/src/gui/tabwidget.cpp
@@ -16,6 +16,8 @@
 TabWidget::TabWidget(QWidget *parent) : QTabWidget(parent) {
   setTabBar(new TabBar(this));
   setupCornerButton();
+  //setTabsClosable(true);
+
   createConnections();
 }
 
@@ -52,8 +54,6 @@ void TabWidget::createConnections() {
   connect(tabBar(), SIGNAL(currentChanged(int)), this, SLOT(fixContentAfterIndexChange(int)));
 }
 
-
-
 void TabWidget::initializeTabs() { 
   // Create widget for "Feeds" page and add it.
   m_feedMessageViewer = new FeedMessageViewer(this);
diff --git a/src/main.cpp b/src/main.cpp
index d1ca9da62..91129131c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -23,6 +23,9 @@
 #include <QDebug>
 
 
+// TODO: lepsi paint bez framu balloontip
+// http://windowdetective.sourceforge.net/files/Window%20Detective/src/ui/custom_widgets/BalloonTip.cpp
+
 // TODO: Check if extra UNIX signalling is needed.
 // Use <csignal> header for it - signal function and catch SIGHUP
 // void my_terminate (int param) {