6663b6c9
 adorian
projet complet av...
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#include <escher/button_row_controller.h>
#include <escher/palette.h>
#include <assert.h>
#include <cmath>
ButtonRowDelegate::ButtonRowDelegate(ButtonRowController * header, ButtonRowController * footer) :
m_header(header),
m_footer(footer)
{
}
int ButtonRowDelegate::numberOfButtons(ButtonRowController::Position position) const {
return 0;
}
Button * ButtonRowDelegate::buttonAtIndex(int index, ButtonRowController::Position position) const {
assert(false);
return nullptr;
}
ButtonRowController * ButtonRowDelegate::footer() {
return m_footer;
}
ButtonRowController * ButtonRowDelegate::header() {
return m_header;
}
ButtonRowController::ContentView::ContentView(ViewController * mainViewController, ButtonRowDelegate * delegate, Position position, Style style) :
View(),
m_mainViewController(mainViewController),
m_selectedButton(-1),
m_delegate(delegate),
m_position(position),
m_style(style)
{
}
int ButtonRowController::ContentView::numberOfButtons() const {
return m_delegate->numberOfButtons(m_position);
}
Button * ButtonRowController::ContentView::buttonAtIndex(int index) const {
return m_delegate->buttonAtIndex(index, m_position);
}
int ButtonRowController::ContentView::numberOfSubviews() const {
return numberOfButtons() + 1;
}
View * ButtonRowController::ContentView::subviewAtIndex(int index) {
/* Warning: the order of the subviews is important for drity tracking.
* Indeed, when a child is redrawn, the redrawn area is the smallest
* rectangle unioniong the dirty rectangle and the previous redrawn area.
* As the main view is more likely to be bigger, we prefer to set it as the
* last child. */
if (index == numberOfSubviews() - 1) {
return m_mainViewController->view();
} else {
return buttonAtIndex(index);
}
}
void ButtonRowController::ContentView::layoutSubviews() {
/* Position the main view */
if (numberOfButtons() == 0) {
KDCoordinate margin = m_position == Position::Top ? 1 : 0;
KDRect mainViewFrame(0, margin, bounds().width(), bounds().height()-margin);
m_mainViewController->view()->setFrame(mainViewFrame);
return;
}
KDCoordinate rowHeight = m_style == Style::PlainWhite ? k_plainStyleHeight : k_embossedStyleHeight;
KDCoordinate frameOrigin = m_position == Position::Top ? rowHeight+1 : 0;
KDRect mainViewFrame(0, frameOrigin, bounds().width(), bounds().height() - rowHeight - 1);
m_mainViewController->view()->setFrame(mainViewFrame);
/* Position buttons */
int nbOfButtons = numberOfButtons();
KDCoordinate widthMargin = 0;
KDCoordinate buttonHeightMargin = 0;
KDCoordinate buttonHeight = rowHeight;
if (m_style == Style::EmbossedGrey) {
KDCoordinate totalButtonWidth = 0;
for (int i = 0; i < nbOfButtons; i++) {
Button * button = buttonAtIndex(i);
totalButtonWidth += button->minimalSizeForOptimalDisplay().width();
}
widthMargin = std::round((float)((bounds().width() - totalButtonWidth)/(nbOfButtons+1)));
buttonHeightMargin = k_embossedStyleHeightMargin;
buttonHeight = rowHeight- 2*k_embossedStyleHeightMargin;
}
KDCoordinate yOrigin = m_position == Position::Top ? buttonHeightMargin : bounds().height()-rowHeight+buttonHeightMargin;
int currentXOrigin = widthMargin;
for (int i = 0; i < numberOfButtons(); i++) {
Button * button = buttonAtIndex(i);
KDCoordinate buttonWidth = button->minimalSizeForOptimalDisplay().width();
KDRect buttonFrame(currentXOrigin, yOrigin, buttonWidth, buttonHeight);
button->setFrame(buttonFrame);
currentXOrigin += buttonWidth + widthMargin;
}
}
void ButtonRowController::ContentView::drawRect(KDContext * ctx, KDRect rect) const {
if (numberOfButtons() == 0) {
if (m_position == Position::Top) {
ctx->fillRect(KDRect(0, 0, bounds().width(), 1), Palette::GreyWhite);
}
return;
}
if (m_style == Style::PlainWhite) {
if (m_position == Position::Top) {
ctx->fillRect(KDRect(0, 0, bounds().width(), k_plainStyleHeight), KDColorWhite);
ctx->fillRect(KDRect(0, k_plainStyleHeight, bounds().width(), 1), Palette::GreyWhite);
} else {
ctx->fillRect(KDRect(0, bounds().height() - k_plainStyleHeight, bounds().width(), k_plainStyleHeight), KDColorWhite);
ctx->fillRect(KDRect(0, bounds().height() - k_plainStyleHeight-1, bounds().width(), 1), Palette::GreyWhite);
}
return;
}
if (m_position == Position::Top) {
ctx->fillRect(KDRect(0, 0, bounds().width(), k_embossedStyleHeight), Palette::GreyWhite);
ctx->fillRect(KDRect(0, k_embossedStyleHeight, bounds().width(), 1), Palette::GreyMiddle);
} else {
ctx->fillRect(KDRect(0, bounds().height() - k_embossedStyleHeight, bounds().width(), k_embossedStyleHeight), Palette::GreyWhite);
ctx->fillRect(KDRect(0, bounds().height() - k_embossedStyleHeight-1, bounds().width(), 1), Palette::GreyMiddle);
}
KDCoordinate y0 = m_position == Position::Top ? k_embossedStyleHeightMargin-1 : bounds().height()-k_embossedStyleHeight+k_embossedStyleHeightMargin-1;
KDCoordinate y1 = m_position == Position::Top ? k_embossedStyleHeight-k_embossedStyleHeightMargin-2 : bounds().height()-k_embossedStyleHeightMargin;
KDCoordinate totalButtonWidth = 0;
for (int i = 0; i < numberOfButtons(); i++) {
Button * button = buttonAtIndex(i);
totalButtonWidth += button->minimalSizeForOptimalDisplay().width();
}
KDCoordinate widthMargin = std::round((float)((bounds().width() - totalButtonWidth)/(numberOfButtons()+1)));
int currentXOrigin = widthMargin-1;
for (int i = 0; i < numberOfButtons(); i++) {
Button * button = buttonAtIndex(i);
KDCoordinate buttonWidth = button->minimalSizeForOptimalDisplay().width();
ctx->fillRect(KDRect(currentXOrigin, y0, 1, y1-y0+1), Palette::GreyMiddle);
ctx->fillRect(KDRect(currentXOrigin-1, y0, 1, y1-y0+2), Palette::GreyDark);
ctx->fillRect(KDRect(currentXOrigin, y0, buttonWidth+2, 1), Palette::GreyMiddle);
ctx->fillRect(KDRect(currentXOrigin, y1, buttonWidth+2, 1), Palette::GreyMiddle);
ctx->fillRect(KDRect(currentXOrigin, y1+1, buttonWidth+2, 1), Palette::GreyDark);
ctx->fillRect(KDRect(currentXOrigin+1+buttonWidth, y0, 1, y1-y0+1), Palette::GreyMiddle);
currentXOrigin += buttonWidth + widthMargin;
}
}
bool ButtonRowController::ContentView::setSelectedButton(int selectedButton, App * application) {
if (selectedButton < -1 || selectedButton >= numberOfButtons() || selectedButton == m_selectedButton) {
return false;
}
if (m_selectedButton >= 0) {
Button * button = buttonAtIndex(m_selectedButton);
button->setHighlighted(false);
}
m_selectedButton = selectedButton;
if (m_selectedButton >= 0) {
Button * button = buttonAtIndex(selectedButton);
button->setHighlighted(true);
application->setFirstResponder(button);
return true;
}
return false;
}
int ButtonRowController::ContentView::selectedButton() {
return m_selectedButton;
}
ViewController * ButtonRowController::ContentView::mainViewController() const {
return m_mainViewController;
}
ButtonRowDelegate * ButtonRowController::ContentView::buttonRowDelegate() const {
return m_delegate;
}
ButtonRowController::ButtonRowController(Responder * parentResponder, ViewController * mainViewController, ButtonRowDelegate * delegate, Position position, Style style) :
ViewController(parentResponder),
m_contentView(mainViewController, delegate, position, style)
{
}
View * ButtonRowController::view() {
return &m_contentView;
}
const char * ButtonRowController::title() {
return m_contentView.mainViewController()->title();
}
void ButtonRowController::didBecomeFirstResponder(){
app()->setFirstResponder(m_contentView.mainViewController());
}
bool ButtonRowController::setSelectedButton(int selectedButton) {
App * application = app();
return m_contentView.setSelectedButton(selectedButton, application);
}
bool ButtonRowController::handleEvent(Ion::Events::Event event) {
if (event == Ion::Events::Left) {
if (m_contentView.selectedButton() == 0) {
} else {
setSelectedButton(m_contentView.selectedButton() - 1);
}
return true;
}
if (event == Ion::Events::Right) {
if (m_contentView.selectedButton() == - 1) {
} else {
setSelectedButton(m_contentView.selectedButton() + 1);
}
return true;
}
if (event == Ion::Events::OK || event == Ion::Events::EXE) {
return true;
}
return false;
}
void ButtonRowController::viewWillAppear() {
/* We need to layout subviews at first appearance because the number of
* buttons might have changed between 2 appearences. */
m_contentView.layoutSubviews();
m_contentView.mainViewController()->viewWillAppear();
}
void ButtonRowController::viewDidDisappear() {
m_contentView.mainViewController()->viewDidDisappear();
}
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