zoom_parameter_controller.cpp
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#include "zoom_parameter_controller.h"
#include <assert.h>
#include <cmath>
namespace Shared {
ZoomParameterController::ZoomParameterController(Responder * parentResponder, InteractiveCurveViewRange * interactiveRange, CurveView * curveView) :
ViewController(parentResponder),
m_contentView(curveView),
m_interactiveRange(interactiveRange)
{
}
const char * ZoomParameterController::title() {
return I18n::translate(I18n::Message::Zoom);
}
View * ZoomParameterController::view() {
return &m_contentView;
}
bool ZoomParameterController::handleEvent(Ion::Events::Event event) {
if (event == Ion::Events::Plus) {
float meanX = (m_interactiveRange->xMin()+m_interactiveRange->xMax())/2.0f;
float meanY = (m_interactiveRange->yMin()+m_interactiveRange->yMax())/2.0f;
m_interactiveRange->zoom(2.0f/3.0f, meanX, meanY);
m_contentView.curveView()->reload();
return true;
}
if (event == Ion::Events::Minus) {
float meanX = (m_interactiveRange->xMin()+m_interactiveRange->xMax())/2.0f;
float meanY = (m_interactiveRange->yMin()+m_interactiveRange->yMax())/2.0f;
m_interactiveRange->zoom(3.0f/2.0f, meanX, meanY);
m_contentView.curveView()->reload();
return true;
}
if (event == Ion::Events::Up) {
m_interactiveRange->panWithVector(0.0f, m_interactiveRange->yGridUnit());
m_contentView.curveView()->reload();
return true;
}
if (event == Ion::Events::Down) {
m_interactiveRange->panWithVector(0.0f, -m_interactiveRange->yGridUnit());
m_contentView.curveView()->reload();
return true;
}
if (event == Ion::Events::Left) {
m_interactiveRange->panWithVector(-m_interactiveRange->xGridUnit(), 0.0f);
m_contentView.curveView()->reload();
return true;
}
if (event == Ion::Events::Right) {
m_interactiveRange->panWithVector(m_interactiveRange->xGridUnit(), 0.0f);
m_contentView.curveView()->reload();
return true;
}
return false;
}
void ZoomParameterController::viewWillAppear() {
m_contentView.curveView()->setOkView(nullptr);
}
void ZoomParameterController::didBecomeFirstResponder() {
m_contentView.layoutSubviews();
}
/* Content View */
ZoomParameterController::ContentView::ContentView(CurveView * curveView) :
m_curveView(curveView)
{
}
int ZoomParameterController::ContentView::numberOfSubviews() const {
return 2;
}
View * ZoomParameterController::ContentView::subviewAtIndex(int index) {
assert(index >= 0 && index < 2);
if (index == 0) {
return m_curveView;
}
return &m_legendView;
}
void ZoomParameterController::ContentView::layoutSubviews() {
m_curveView->setFrame(KDRect(0, 0, bounds().width(), bounds().height() - k_legendHeight));
m_legendView.setFrame(KDRect(0, bounds().height() - k_legendHeight, bounds().width(), k_legendHeight));
}
CurveView * ZoomParameterController::ContentView::curveView() {
return m_curveView;
}
/* Legend View */
ZoomParameterController::ContentView::LegendView::LegendView()
{
I18n::Message messages[k_numberOfLegends] = {I18n::Message::Move, I18n::Message::ToZoom, I18n::Message::Or};
float horizontalAlignments[k_numberOfLegends] = {1.0f, 1.0f, 0.5f};
for (int i = 0; i < k_numberOfLegends; i++) {
m_legends[i].setFontSize(KDText::FontSize::Small);
m_legends[i].setMessage(messages[i]);
m_legends[i].setBackgroundColor(Palette::GreyBright);
m_legends[i].setAlignment(horizontalAlignments[i], 0.5f);
}
KeyView::Type tokenTypes[k_numberOfTokens] = {KeyView::Type::Up, KeyView::Type::Down, KeyView::Type::Left, KeyView::Type::Right, KeyView::Type::Plus, KeyView::Type::Minus};
for (int i = 0; i < k_numberOfTokens ; i++) {
m_legendPictograms[i].setType(tokenTypes[i]);
}
}
void ZoomParameterController::ContentView::LegendView::drawRect(KDContext * ctx, KDRect rect) const {
ctx->fillRect(KDRect(0, bounds().height() - k_legendHeight, bounds().width(), k_legendHeight), Palette::GreyBright);
}
int ZoomParameterController::ContentView::LegendView::numberOfSubviews() const {
return k_numberOfLegends+k_numberOfTokens;
}
View * ZoomParameterController::ContentView::LegendView::subviewAtIndex(int index) {
assert(index >= 0 && index < k_numberOfTokens+k_numberOfLegends);
if (index < k_numberOfLegends) {
return &m_legends[index];
}
return &m_legendPictograms[index-k_numberOfLegends];
}
void ZoomParameterController::ContentView::LegendView::layoutSubviews() {
KDCoordinate height = bounds().height();
KDCoordinate xOrigin = 0;
KDCoordinate legendWidth = m_legends[0].minimalSizeForOptimalDisplay().width();
m_legends[0].setFrame(KDRect(xOrigin, 0, legendWidth, height));
xOrigin += legendWidth;
for (int i = 0; i < k_numberOfTokens - 2; i++) {
m_legendPictograms[i].setFrame(KDRect(xOrigin, 0, k_tokenWidth, height));
xOrigin += k_tokenWidth;
}
xOrigin = bounds().width()/2;
for (int i = 1; i < k_numberOfLegends; i++) {
KDCoordinate legendWidth = m_legends[i].minimalSizeForOptimalDisplay().width();
m_legends[i].setFrame(KDRect(xOrigin, 0, legendWidth, height));
xOrigin += legendWidth;
m_legendPictograms[k_numberOfTokens - 3 + i].setFrame(KDRect(xOrigin, 0, k_tokenWidth, height));
xOrigin += k_tokenWidth;
}
}
}