Files
Upsilon/apps/sequence/graph/graph_controller.cpp
Émilie Feral 96733dbbdc [apps] Rule of 5 (3)
Change-Id: Ia85b23a09e9debd62b4f3590463a4f16454ef4b7
2017-05-09 14:33:53 +02:00

100 lines
3.4 KiB
C++

#include "graph_controller.h"
using namespace Shared;
namespace Sequence {
GraphController::GraphController(Responder * parentResponder, SequenceStore * sequenceStore, ButtonRowController * header) :
FunctionGraphController(parentResponder, header, &m_graphRange, &m_view),
m_bannerView(),
m_view(sequenceStore, &m_graphRange, &m_cursor, &m_bannerView, &m_cursorView),
m_graphRange(&m_cursor, this),
m_curveParameterController(this, &m_graphRange, &m_cursor),
m_termSumController(this, &m_view, &m_graphRange, &m_cursor),
m_sequenceStore(sequenceStore)
{
}
void GraphController::viewWillAppear() {
m_view.setVerticalCursor(false);
m_view.setCursorView(&m_cursorView);
m_view.setBannerView(&m_bannerView);
m_view.setHighlight(-1.0f, -1.0f);
FunctionGraphController::viewWillAppear();
}
I18n::Message GraphController::emptyMessage() {
if (m_sequenceStore->numberOfDefinedFunctions() == 0) {
return I18n::Message::NoSequence;
}
return I18n::Message::NoActivatedSequence;
}
TermSumController * GraphController::termSumController() {
return &m_termSumController;
}
BannerView * GraphController::bannerView() {
return &m_bannerView;
}
bool GraphController::handleEnter() {
m_termSumController.setSequence(m_sequenceStore->activeFunctionAtIndex(m_indexFunctionSelectedByCursor));
return FunctionGraphController::handleEnter();
}
bool GraphController::moveCursorHorizontally(int direction) {
float xCursorPosition = roundf(m_cursor.x());
if (direction < 0 && xCursorPosition <= 0) {
return false;
}
/* The cursor moves by step of at minimum 1. If the windowRange is to large
* compared to the resolution, the cursor takes bigger round step to cross
* the window in approximatively resolution steps. */
float step = ceilf((interactiveCurveViewRange()->xMax()-interactiveCurveViewRange()->xMin())/m_view.resolution());
step = step < 1.0f ? 1.0f : step;
float x = direction > 0 ? xCursorPosition + step:
xCursorPosition - step;
if (x < 0.0f) {
return false;
}
Sequence * s = m_sequenceStore->activeFunctionAtIndex(m_indexFunctionSelectedByCursor);
TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
float y = s->evaluateAtAbscissa(x, myApp->localContext());
m_cursor.moveTo(x, y);
m_graphRange.panToMakePointVisible(x, y, k_cursorTopMarginRatio, k_cursorRightMarginRatio, k_cursorBottomMarginRatio, k_cursorLeftMarginRatio);
return true;
}
void GraphController::initCursorParameters() {
float x = roundf((interactiveCurveViewRange()->xMin()+interactiveCurveViewRange()->xMax())/2.0f);
m_indexFunctionSelectedByCursor = 0;
TextFieldDelegateApp * myApp = (TextFieldDelegateApp *)app();
int functionIndex = 0;
float y = 0;
do {
Sequence * firstFunction = m_sequenceStore->activeFunctionAtIndex(functionIndex++);
y = firstFunction->evaluateAtAbscissa(x, myApp->localContext());
} while (isnan(y) && functionIndex < m_sequenceStore->numberOfActiveFunctions());
m_cursor.moveTo(x, y);
m_graphRange.panToMakePointVisible(x, y, k_cursorTopMarginRatio, k_cursorRightMarginRatio, k_cursorBottomMarginRatio, k_cursorLeftMarginRatio);
}
CurveViewRange * GraphController::interactiveCurveViewRange() {
return &m_graphRange;
}
SequenceStore * GraphController::functionStore() const {
return m_sequenceStore;
}
GraphView * GraphController::functionGraphView() {
return &m_view;
}
CurveParameterController * GraphController::curveParameterController() {
return &m_curveParameterController;
}
}