mobile/statistics: add a statistics page on mobile

This adds a reasonably flexibile mobile page that tries to do the right
thing for both portrait and landscape mode. In order to get the most out
of a mobile screen, it's implemented in a way that always gives it the
full screen (it does so by emptying out the page stack and being the
only page shown - brutal, but effective).

This commit also contains a bunch of other random cleanups that didn't
really justify being in separate commits.

Parts of this was written by Berthold, hence the double SOB.

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>
Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

1 files changed, 62 insertions, 1 deletions

diff --git a/mobile-widgets/statsmanager.cpp b/mobile-widgets/statsmanager.cpp
index 2864a5f16..d149c9978 100644
--- a/mobile-widgets/statsmanager.cpp
+++ b/mobile-widgets/statsmanager.cpp
@@ -7,13 +7,14 @@ StatsManager::StatsManager() : view(nullptr)
 	state.var1Changed(2);
 	state.var2Changed(3);
 	state.binner2Changed(2);
+	updateUi();
 }
 
 StatsManager::~StatsManager()
 {
 }
 
-void StatsManager::init(StatsView *v)
+void StatsManager::init(StatsView *v, QObject *o)
 {
 	if (!v)
 		fprintf(stderr, "StatsManager::init(): no StatsView - statistics will not work.\n");
@@ -26,3 +27,63 @@ void StatsManager::doit()
 		return;
 	view->plot(state);
 }
+
+static void setVariableList(const StatsState::VariableList &list, QStringList &stringList)
+{
+	stringList.clear();
+	for (const StatsState::Variable &v: list.variables)
+		stringList.push_back(v.name);
+}
+
+static void setBinnerList(const StatsState::BinnerList &list, QStringList &stringList)
+{
+	stringList.clear();
+	for (const QString &v: list.binners)
+		stringList.push_back(v);
+}
+
+void StatsManager::updateUi()
+{
+	uiState = state.getUIState();
+	setVariableList(uiState.var1, var1List);
+	setBinnerList(uiState.binners1, binner1List);
+	setVariableList(uiState.var2, var2List);
+	setBinnerList(uiState.binners2, binner2List);
+	var1ListChanged();
+	binner1ListChanged();
+	var2ListChanged();
+	binner2ListChanged();
+
+	if (view)
+		view->plot(state);
+}
+
+void StatsManager::var1Changed(int idx)
+{
+	if (uiState.var1.variables.empty())
+		return;
+	idx = std::clamp(idx, 0, (int)uiState.var1.variables.size());
+	state.var1Changed(uiState.var1.variables[idx].id);
+	updateUi();
+}
+
+void StatsManager::var1BinnerChanged(int idx)
+{
+	state.binner1Changed(idx);
+	updateUi();
+}
+
+void StatsManager::var2Changed(int idx)
+{
+	if (uiState.var2.variables.empty())
+		return;
+	idx = std::clamp(idx, 0, (int)uiState.var2.variables.size());
+	state.var2Changed(uiState.var2.variables[idx].id);
+	updateUi();
+}
+
+void StatsManager::var2BinnerChanged(int idx)
+{
+	state.binner2Changed(idx);
+	updateUi();
+}