[PATCH] MainTab: tweak the scrolling while inside the notes

[Dirk Hohndel]

I know that Tomaz had a solution for this one as well, but I haven't
seen a patch from him, yet.

I want to make sure that we have the 'right' solution. Given that it's
so close before the release we'll have limited testing...

/D

On Fri, 2013-12-13 at 14:00 +0200, Lubomir I. Ivanov wrote:
> From: "Lubomir I. Ivanov" <neolit123 at gmail.com>
> 
> Patch makes a couple of changes:
> - if the notes receive focus set the 'inNotes' flag and scroll to the bottom
> of the tab widget
> - if 'inNotes' is set disable the mouse wheel for the entire widget except
> the notes
> 
> This makes scrolling to the top of the notes not engage scrolling the
> entire tab widget.
> 
> Fixes #176
> 
> Signed-off-by: Lubomir I. Ivanov <neolit123 at gmail.com>
> ---
>  qt-ui/maintab.cpp | 17 ++++++++++++++++-
>  qt-ui/maintab.h   |  1 +
>  2 files changed, 17 insertions(+), 1 deletion(-)
> 
> diff --git a/qt-ui/maintab.cpp b/qt-ui/maintab.cpp
> index edc425b..654ce98 100644
> --- a/qt-ui/maintab.cpp
> +++ b/qt-ui/maintab.cpp
> @@ -28,7 +28,8 @@
>  MainTab::MainTab(QWidget *parent) : QTabWidget(parent),
>  				    weightModel(new WeightModel()),
>  				    cylindersModel(CylindersModel::instance()),
> -				    editMode(NONE)
> +				    editMode(NONE),
> +				    inNotes(false)
>  {
>  	ui.setupUi(this);
>  	ui.cylinders->setModel(cylindersModel);
> @@ -57,6 +58,8 @@ MainTab::MainTab(QWidget *parent) : QTabWidget(parent),
>  	ui.divemaster->installEventFilter(this);
>  	ui.buddy->installEventFilter(this);
>  	ui.suit->installEventFilter(this);
> +	ui.scrollArea->installEventFilter(this);
> +	ui.notes->installEventFilter(this);
>  	ui.notes->viewport()->installEventFilter(this);
>  	ui.rating->installEventFilter(this);
>  	ui.visibility->installEventFilter(this);
> @@ -281,6 +284,18 @@ void MainTab::enableEdition(EditMode newEditMode)
>  
>  bool MainTab::eventFilter(QObject* object, QEvent* event)
>  {
> +	// if the notes receive focus set the inNotes flag and scroll to the bottom
> +	if (isEnabled() && object == ui.notes) {
> +		if (event->type() == QEvent::FocusIn) {
> +			inNotes = true;
> +			ui.scrollArea->verticalScrollBar()->setSliderPosition(ui.scrollArea->verticalScrollBar()->maximum());
> +		}
> +		if (event->type() == QEvent::FocusOut)
> +			inNotes = false;
> +	}
> +	// if in notes disable the mouse wheel
> +	if (isEnabled() && event->type() == QEvent::Wheel && object != ui.notes->viewport() && inNotes)
> +		return true;
>  	if (isEnabled() && event->type() == QEvent::KeyPress && object == ui.dateTimeEdit) {
>  		tabBar()->setTabIcon(currentIndex(), QIcon(":warning"));
>  		enableEdition();
> diff --git a/qt-ui/maintab.h b/qt-ui/maintab.h
> index aed8f9e..40b55a4 100644
> --- a/qt-ui/maintab.h
> +++ b/qt-ui/maintab.h
> @@ -94,6 +94,7 @@ private:
>  	CylindersModel *cylindersModel;
>  	QMap<dive*, NotesBackup> notesBackup;
>  	EditMode editMode;
> +	bool inNotes;
>  
>  	/* since the multi-edition of the equipment is fairly more
>  	 * complex than a single item, because it involves a Qt