1 files changed, 135 insertions, 0 deletions
diff --git a/src/findwidget.cpp b/src/findwidget.cpp
new file mode 100644
index 0000000..ff8de5a
--- /dev/null
+++ b/src/findwidget.cpp
@@ -0,0 +1,135 @@
+
+#include "findwidget.h"
+
+FindWidget::FindWidget(QWidget *parent, QTextEdit *edit) :
+    QWidget(parent)
+{
+    mTextpage = edit;
+    findEdit = new QLineEdit(this);
+    QPushButton *closeButton= new QPushButton(this->style()->standardIcon(QStyle::SP_TitleBarCloseButton),"",this);
+    QPushButton *nextButton= new QPushButton(QIcon(":button_next.png"), "");
+    QPushButton *previousButton= new QPushButton(QIcon(":button_previous.png"), "");
+
+    QHBoxLayout *notificationWidgetLayout = new QHBoxLayout(this);
+    notificationWidgetLayout->setContentsMargins(10,0,0,0);
+    notificationWidgetLayout->addWidget(new QLabel(tr("Find:")));
+    notificationWidgetLayout->addWidget(findEdit,2);
+    notificationWidgetLayout->addWidget(nextButton);
+    notificationWidgetLayout->addWidget(previousButton);
+    notificationWidgetLayout->addWidget(closeButton);
+
+    this->setLayout(notificationWidgetLayout);
+    connect(findEdit,SIGNAL(textEdited(QString)),this,SLOT(slotFind()));
+    connect(findEdit,SIGNAL(returnPressed()),this,SLOT(slotFindNext()));
+    connect(nextButton,SIGNAL(clicked()),this,SLOT(slotFindNext()));
+    connect(previousButton,SIGNAL(clicked()),this,SLOT(slotFindPrevious()));
+    connect(closeButton,SIGNAL(clicked()),this,SLOT(slotClose()));
+
+    // The timer is necessary for setting the focus
+    QTimer::singleShot(0, findEdit, SLOT(setFocus()));
+}
+
+void FindWidget::setBackground()
+{
+    QTextCursor cursor = mTextpage->textCursor();
+    // if match is found set background of QLineEdit to white, otherwise to red
+    QPalette bgPalette( findEdit->palette() );
+
+    if (!findEdit->text().isEmpty() && mTextpage->document()->find(findEdit->text()).position() < 0 ) {
+        bgPalette.setColor( QPalette::Base, "#ececba");
+    } else {
+        bgPalette.setColor( QPalette::Base, Qt::white);
+    }
+    findEdit->setPalette(bgPalette);
+}
+
+void FindWidget::slotFindNext()
+{
+    QTextCursor cursor = mTextpage->textCursor();
+    cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
+
+    // if end of document is reached, restart search from beginning
+    if (cursor.position() == -1) {
+        cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
+    }
+
+    // cursor should not stay at -1, otherwise text is not editable
+    // todo: check how gedit handles this
+    if(cursor.position() != -1) {
+        mTextpage->setTextCursor(cursor);
+    }
+    this->setBackground();
+}
+
+void FindWidget::slotFind()
+{
+    QTextCursor cursor = mTextpage->textCursor();
+
+    if (cursor.anchor() == -1) {
+        cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
+    } else {
+        cursor = mTextpage->document()->find(findEdit->text(), cursor.anchor(), QTextDocument::FindCaseSensitively);
+    }
+
+    // if end of document is reached, restart search from beginning
+    if (cursor.position() == -1) {
+        cursor = mTextpage->document()->find(findEdit->text(), cursor, QTextDocument::FindCaseSensitively);
+    }
+
+    // cursor should not stay at -1, otherwise text is not editable
+    // todo: check how gedit handles this
+    if(cursor.position() != -1) {
+        mTextpage->setTextCursor(cursor);
+    }
+    this->setBackground();
+}
+
+void FindWidget::slotFindPrevious()
+{
+    QTextDocument::FindFlags flags;
+    flags |= QTextDocument::FindBackward;
+    flags |= QTextDocument::FindCaseSensitively;
+
+    QTextCursor cursor = mTextpage->textCursor();
+    cursor = mTextpage->document()->find(findEdit->text(), cursor, flags);
+
+    // if begin of document is reached, restart search from end
+    if (cursor.position() == -1) {
+        cursor = mTextpage->document()->find(findEdit->text(), QTextCursor::End, flags);
+    }
+
+    // cursor should not stay at -1, otherwise text is not editable
+    // todo: check how gedit handles this
+    if(cursor.position() != -1) {
+        mTextpage->setTextCursor(cursor);
+    }
+	this->setBackground();
+}
+
+void FindWidget::keyPressEvent( QKeyEvent* e )
+{
+    switch ( e->key() )
+    {
+    case Qt::Key_Escape:
+        this->slotClose();
+        break;
+    case Qt::Key_F3:
+        if (e->modifiers() & Qt::ShiftModifier) {
+            this->slotFindPrevious();
+        } else {
+            this->slotFindNext();
+        }
+        break;
+    }
+}
+
+void FindWidget::slotClose() {
+    QTextCursor cursor = mTextpage->textCursor();
+
+    if ( cursor.position() == -1) {
+        cursor.setPosition(0);
+        mTextpage->setTextCursor(cursor);
+    }
+    mTextpage->setFocus();
+    close();
+}