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[apps/graph/values] Display a warning page instead of an empty table when no function is selected

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Change-Id: I78a7edd6827efb6db73b1d33cb898983bdad02e1
This commit is contained in:
Émilie Feral
2016-10-20 12:54:39 +02:00
parent db3b8879ab
commit 1d58a89ef1
2 changed files with 78 additions and 2 deletions
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60
apps/graph/values/values_controller.cpp
View File

@@ -4,8 +4,50 @@
namespace Graph {
/* Content View */
ValuesController::ContentView::ContentView(View * mainView) :
m_noFunctionSelected(PointerTextView("Aucune fonction selectionnee", 0.5f, 0.5f, KDColorBlack, Palette::BackgroundColor)),
m_mainView(mainView),
m_tableState(TableState::Empty)
{
}
void ValuesController::ContentView::drawRect(KDContext * ctx, KDRect rect) const {
if (m_tableState == TableState::Empty) {
ctx->fillRect(bounds(), Palette::BackgroundColor);
}
}
int ValuesController::ContentView::numberOfSubviews() const {
return 1;
}
View * ValuesController::ContentView::subviewAtIndex(int index) {
assert(index == 0);
if (m_tableState == TableState::Empty) {
return &m_noFunctionSelected;
}
return m_mainView;
}
void ValuesController::ContentView::layoutSubviews() {
m_noFunctionSelected.setFrame(bounds());
m_mainView->setFrame(bounds());
}
void ValuesController::ContentView::setTableState(TableState tableState) {
m_tableState = tableState;
}
ValuesController::ContentView::TableState ValuesController::ContentView::tableState() {
return m_tableState;
}
/* Value Controller */
ValuesController::ValuesController(Responder * parentResponder, FunctionStore * functionStore, EvaluateContext * evaluateContext) :
HeaderViewController(parentResponder, &m_tableView),
HeaderViewController(parentResponder, &m_contentView),
m_tableView(TableView(this, k_topMargin, k_rightMargin, k_bottomMargin, k_leftMargin)),
m_activeCellX(0),
m_activeCellY(-1),
@@ -19,7 +61,8 @@ ValuesController::ValuesController(Responder * parentResponder, FunctionStore *
ValuesController * valuesController = (ValuesController *) context;
StackViewController * stack = ((StackViewController *)valuesController->parentResponder());
stack->push(valuesController->parameterController());
}, this)))
}, this))),
m_contentView(ContentView(&m_tableView))
{
m_interval.setStart(0);
m_interval.setEnd(10);
@@ -145,6 +188,11 @@ ValueCell * ValuesController::abscisseCellAtRow(int rowIndex) {
}
void ValuesController::didBecomeFirstResponder() {
if (m_functionStore->numberOfActiveFunctions() == 0) {
m_contentView.setTableState(ValuesController::ContentView::TableState::Empty);
return;
}
m_contentView.setTableState(ContentView::TableState::NonEmpty);
m_tableView.reloadData();
setSelectedButton(-1);
if (m_activeCellY == -1) {
@@ -159,6 +207,14 @@ void ValuesController::didBecomeFirstResponder() {
}
bool ValuesController::handleEvent(Ion::Events::Event event) {
if (m_contentView.tableState() == ContentView::TableState::Empty) {
if (event == Ion::Events::Event::UP_ARROW) {
app()->setFirstResponder(tabController());
return true;
}
return false;
}
if (m_activeCellY == -1) {
switch (event) {
case Ion::Events::Event::DOWN_ARROW: