/**
* Utility function to create a label.
* The height of the label is computed automatically.
* @param width Label width.
* @param fontColor Text color.
* @param fontSize Text size.
* @param text Label text.
* @return Handle to the new label.
*/
MAWidgetHandle NativeScreen::createLabel(
int width,
int fontColor,
int fontSize,
const char* text)
{
// Create the label.
MAWidgetHandle label = maWidgetCreate(MAW_LABEL);
// Set the label font color.
setWidgetProperty(label, MAW_LABEL_FONT_COLOR, fontColor, 16);
// Set the label font size.
setWidgetProperty(label, MAW_LABEL_FONT_SIZE, fontSize);
// Set the widget size.
setWidgetProperty(label, MAW_WIDGET_WIDTH, width);
setWidgetProperty(label, MAW_WIDGET_HEIGHT, MAW_CONSTANT_WRAP_CONTENT);
// Set the label text.
maWidgetSetProperty(label, MAW_LABEL_TEXT, text);
// Set text alignment.
maWidgetSetProperty(label, MAW_LABEL_TEXT_VERTICAL_ALIGNMENT, "center");
maWidgetSetProperty(label, MAW_LABEL_TEXT_HORIZONTAL_ALIGNMENT, "center");
return label;
}
/**
* Show the screen.
*/
void HomeScreen::showScreen()
{
// Make the home screen listen for key events.
MAUtil::Environment::getEnvironment().addKeyListener(this);
// Reset the progress bar value to 0, and dismiss it.
maWidgetSetProperty(mProgressLabel,MAW_WIDGET_VISIBLE, "false");
setWidgetProperty(mProgressBar,MAW_PROGRESS_BAR_PROGRESS, 0);
maWidgetSetProperty(mProgressBar,MAW_WIDGET_VISIBLE, "false");
maWidgetSetProperty(mSearchButton, MAW_WIDGET_ENABLED, "true");
// Reset the slider value.
setWidgetProperty(mSlider, MAW_SLIDER_VALUE, 10);
// Clear the edit box.
maWidgetSetProperty(mEditBox, MAW_EDIT_BOX_TEXT, "");
// Check all categories.
for (int i=0; i<mCategoryBoxes.size(); i++)
{
maWidgetSetProperty(mCategoryBoxes[i], MAW_CHECK_BOX_CHECKED, "true");
}
// Initialize the top text label.
setLabelText(mLabel, " ");
// Display this screen.
BasicScreen::showScreen();
}
/**
* Creates a button with centered text by default,
* font size is 20, and color is DARK GREY.
* @param text The button text.
* @return Handle to the new button.
*/
MAWidgetHandle NativeScreen::createButton(const char* text, int width, int height)
{
// Create button.
MAWidgetHandle button = maWidgetCreate(MAW_BUTTON);
// Set text and text alignment.
maWidgetSetProperty(button, MAW_BUTTON_TEXT, text);
maWidgetSetProperty(button, MAW_BUTTON_TEXT_VERTICAL_ALIGNMENT, "center");
maWidgetSetProperty(button, MAW_BUTTON_TEXT_HORIZONTAL_ALIGNMENT, "center");
setWidgetProperty(button, MAW_WIDGET_WIDTH, width);
setWidgetProperty(button, MAW_WIDGET_HEIGHT, height);
// Set font color.
setWidgetProperty(button, MAW_BUTTON_FONT_COLOR, BLUE, 16);
// setWidgetProperty(button, MAW_WIDGET_BACKGROUND_COLOR, DARK_SEA_GREEN, 16);
// maWidgetSetProperty(button,"Gradient", " ");
// Set font size to small.
// setWidgetProperty(button, MAW_BUTTON_FONT_SIZE, mFontRegularSize);
return button;
}
/**
* Utility function to create a label.
* The height of the label is computed automatically.
* @param width Label width.
* @param text Label text.
* @param fontColor Text color.
* @param fontSize Text size.
*
* @return Handle to the new label.
*/
MAWidgetHandle createLabel(int width, const char* text,
int fontColor, int fontSize)
{
MAWidgetHandle label = maWidgetCreate(MAW_LABEL);
// Set the label font color.
setWidgetProperty(label, MAW_LABEL_FONT_COLOR, fontColor, 16);
// Set the label font size.
setWidgetProperty(label, MAW_LABEL_FONT_SIZE, fontSize);
// Set the widget size.
setWidgetProperty(label, MAW_WIDGET_WIDTH, width);
setWidgetProperty(label, MAW_WIDGET_HEIGHT, MAW_CONSTANT_WRAP_CONTENT);
// Set the label text.
maWidgetSetProperty(label, MAW_LABEL_TEXT, text);
maWidgetSetProperty(
label, MAW_LABEL_TEXT_VERTICAL_ALIGNMENT, MAW_ALIGNMENT_CENTER);
maWidgetSetProperty(
label, MAW_LABEL_TEXT_HORIZONTAL_ALIGNMENT, MAW_ALIGNMENT_CENTER);
return label;
}
/**
* This method implements a custom event listener.
* Widget events are sent as custom events.
*/
void SettingsScreen::customEvent(const MAEvent& event)
{
// Check if this is a widget event.
if (EVENT_TYPE_WIDGET == event.type)
{
// Get the widget event data structure.
MAWidgetEventData* eventData = (MAWidgetEventData*) event.data;
// Here we handle clicked events.
if (MAW_EVENT_CLICKED == eventData->eventType)
{
if(mFlashModeButton == eventData->widgetHandle)
{
if(flashModeIndex < 3)
{
flashModeIndex++;
}
else
{
flashModeIndex = 0;
}
char buffer[128];
sprintf(buffer, "Flash Mode: %s", getModeForIndex(flashModeIndex));
maWidgetSetProperty(mFlashModeButton,MAW_BUTTON_TEXT, buffer);
}
else if(mSwapCameraButton == eventData->widgetHandle)
{
if(currentCamera < numCameras-1)
{
currentCamera++;
}
else
{
currentCamera = 0;
}
if(currentCamera == 0)
{
maWidgetSetProperty(
mSwapCameraButton,
MAW_LABEL_TEXT,
"Camera Selected: Back");
}
else
{
maWidgetSetProperty(
mSwapCameraButton,
MAW_LABEL_TEXT,
"Camera Selected: Front");
}
}
else if(mOKButton == eventData->widgetHandle)
{
isViewed= false;
maWidgetStackScreenPop(mStackScreen);
}
}
}
}
/**
* The UI is notified when an engine error occurs.
*/
void HomeScreen::engineError(MAUtil::String errorMessage)
{
// Some error occurred.
setLabelText(mLabel, errorMessage.c_str());
// Hide the progress bar and it's label.
maWidgetSetProperty(mProgressBar, MAW_WIDGET_VISIBLE, "false");
maWidgetSetProperty(mProgressLabel,MAW_WIDGET_VISIBLE, "false");
}
/**
* Utility function to set sizes of a widget.
* @param widget The widget handle.
* @param width The widget width.
* @param height The widget height.
*/
void setWidgetSize(MAWidgetHandle widget, int width, int height)
{
char buf[10];
itoa(width, buf, 10);
maWidgetSetProperty(widget, MAW_WIDGET_WIDTH, buf);
itoa(height, buf, 10);
maWidgetSetProperty(widget, MAW_WIDGET_HEIGHT, buf);
}
/**
* from CustomEventListener
* The custom event listener interface.
*/
void HomeScreen::customEvent(const MAEvent& event)
{
//If the event does not come from a widget, we just ignore it.
if (event.type != EVENT_TYPE_WIDGET) {
return;
}
// Get the information sent by the widget.
MAWidgetEventData *widgetEventData = (MAWidgetEventData *) event.data;
// Check that the event was sent from a widget...
if (widgetEventData->eventType == MAW_EVENT_CLICKED)
{
// handle the event emitted by the widget
widgetClicked(widgetEventData->widgetHandle);
}
// Check if the event came from a slider value change...
else if(widgetEventData->eventType == MAW_EVENT_SLIDER_VALUE_CHANGED)
{
// Set the current value of the slider.
mSliderValue = widgetEventData->sliderValue;
}
else if(widgetEventData->eventType == MAW_EVENT_EDIT_BOX_RETURN)
{
// Hide the keyboard.
maWidgetSetProperty(
widgetEventData->widgetHandle,
MAW_EDIT_BOX_SHOW_KEYBOARD,
"false");
}
return;
}
/**
* Register this web view to receive messages from JavaScript.
* This will set a hook for urls with the "mosync://"
* scheme. Messages will arrive in in the
* WebViewListener::webViewHookInvoked() method. Use class
* WebViewMessage to inspect and parse messages.
*/
void WebView::enableWebViewMessages()
{
maWidgetSetProperty(
getWidgetHandle(),
MAW_WEB_VIEW_HARD_HOOK,
"mosync://.*");
}
/**
* Unregister this web view from receiving messages sent
* from JavaScript. This will clear the web view url hook.
*/
void WebView::disableWebViewMessages()
{
maWidgetSetProperty(
getWidgetHandle(),
MAW_WEB_VIEW_HARD_HOOK,
"");
}
/**
* Evaluate JavaScript the WebView associated with this message.
* @param script JavaScript string.
*/
void MessageStream::callJS(const MAUtil::String& script)
{
MAUtil::String url = "javascript:" + script;
maWidgetSetProperty(
mWebViewHandle,
MAW_WEB_VIEW_URL,
url.c_str());
}
int createOpenGLScreen(int& openglView)
{
int screen = maWidgetCreate( "Screen" );
maWidgetSetProperty( screen, "title", "OpenGL" );
openglView = maWidgetCreate( "GLView" );
maWidgetAddChild( screen, openglView );
return screen;
}
/**
* Run JavaScript code in the web view.
* @param script The JavaScript code to run.
* @return #MAW_RES_OK on success, <0 on error.
*/
int WebView::callJS(const MAUtil::String& script)
{
MAUtil::String url = "javascript:" + script;
return maWidgetSetProperty(
getWidgetHandle(),
MAW_WEB_VIEW_URL,
url.c_str());
}
/**
* Set a widget float property.
* @param property The property name.
* @param value The float value.
*/
void Widget::setProperty(
const MAUtil::String& property,
float value)
{
char buffer[256];
sprintf(buffer, "%f", value);
maWidgetSetProperty(mWidgetHandle, property.c_str(), buffer);
}
/*
* Apply an int property for a widget.
* @param aWidget The handle for the widget.
* @param aProperty A string representing which property to set.
* @param aValue The value which will be assigned to the property.
* @param base The output radix.
*
* * \returns Any of the following result codes:
* - #MAW_RES_OK if the property could be set.
* - #MAW_RES_INVALID_HANDLE if the handle was invalid.
* - #MAW_RES_INVALID_PROPERTY_NAME if the property name was invalid.
* - #MAW_RES_INVALID_PROPERTY_VALUE if the property value was invalid.
* - #MAW_RES_ERROR otherwise.
*/
int NativeScreen::setWidgetProperty(MAWidgetHandle aWidget, const char* aProperty, int aValue, int base)
{
// Buffer for property values.
char buf[10];
itoa( aValue, buf, base);
// Apply the property to the widget.
return maWidgetSetProperty(aWidget, aProperty, buf);
}
//Next a method for handling events from widgets that have been clicked.
void widgetClicked(MAHandle widgetHandle)
{
//If the clear button was clicked...
if(widgetHandle == mClearButton)
{
//...clear the edit box.
maWidgetSetProperty(mPasswordBox, MAW_EDIT_BOX_TEXT, "");
}
//If the submit button was clicked...
else if(widgetHandle == mSubmitButton)
{
//Declare a buffer for the text contained in the edit box, since
//there is no high level API available.
char passwordTextBuffer[256];
//Get the text from the password box and put it into the buffer.
int textLength = maWidgetGetProperty(mPasswordBox, MAW_EDIT_BOX_TEXT,
passwordTextBuffer, 256);
//If the text does not fit in the buffer, textLength will be set
//to -1, therefore we need to check that the length is greater than
//or equal to 0, otherwise we just ignore the event.
if(textLength == MAW_RES_INVALID_STRING_BUFFER_SIZE)
{
return;
}
//Check that the password is at least 6 characters long.
if(textLength < 6)
{
//If the password is too short we use the instructions label
//to inform the user. Note how C automatically
//concatenates strings split over multiple lines.
maWidgetSetProperty(mInstructions, MAW_LABEL_TEXT, "Password too short. "
"Please enter a password of at least 6 characters:");
}
else
{
//If the password is at least 6 characters long, we congratulate
//user.
maWidgetSetProperty(mInstructions, MAW_LABEL_TEXT, "Password OK");
}
}
}
/**
* Handle events on screen's widgets.
*/
void TitleScreen::widgetClicked(MAHandle widgetHandle)
{
char buf[6];
if ( widgetHandle == mNextButton )
{
// For selected titles, a short snippet will be displayed ( in a separate screen).
updateWikiTitles();
// Show the next screen.
mSummaryScreen->showScreen(true);
}
else if ( widgetHandle == mBackButton )
{
// Go back to the home screen.
showHomeScreen();
}
else if ( mSelectAll == widgetHandle )
{
// Select all titles, or deselect them.
maWidgetGetProperty(mSelectAll, MAW_CHECK_BOX_CHECKED, buf, 6);
for (int i=0; i < mCheckBoxes.size(); i++)
{
maWidgetSetProperty(mCheckBoxes[i], MAW_CHECK_BOX_CHECKED, buf);
}
}
else
{
// If a check box is unselected, than Select all is unselected too.
for (int i=0; i < mCheckBoxes.size(); i++)
{
if (mCheckBoxes[i] == widgetHandle){
maWidgetGetProperty(
mCheckBoxes[i], MAW_CHECK_BOX_CHECKED, buf, 6);
if (strcmp(buf, "false") == 0)
{
maWidgetSetProperty(
mSelectAll, MAW_CHECK_BOX_CHECKED, "false");
}
break;
}
}
}
}
/**
* We have got a location event.
* Call a JavaScript function with the updated location data.
* Setting the "url" property using the "javascript:" scheme
* evaluates the JavaScript code in the WebView.
*/
void handleGeoLocationEvent(MALocation* location)
{
char script[512];
sprintf(
script,
"javascript:GeoLocationUpdated('%f','%f');",
location->lat,
location->lon);
maWidgetSetProperty(mWebView, "url", script);
}
void testCheckedProperty()
{
TESTIFY_ASSERT_EQUAL( maWidgetSetProperty( getTestWidgetHandle( ), MAW_TOGGLE_BUTTON_CHECKED, "false" ), MAW_RES_OK );
char checkedBuffer[256];
TESTIFY_ASSERT_EQUAL( maWidgetGetProperty( getTestWidgetHandle( ), MAW_TOGGLE_BUTTON_CHECKED, checkedBuffer, 256 ), strlen( "false" ) );
TESTIFY_ASSERT_EQUAL( strcmp( checkedBuffer, "false" ), 0 );
TESTIFY_ASSERT_EQUAL( maWidgetGetProperty( getTestWidgetHandle( ), MAW_TOGGLE_BUTTON_CHECKED, checkedBuffer, 1 ), MAW_RES_INVALID_STRING_BUFFER_SIZE );
}
/**
* Open a web view for a certain title
* compose the url and display
* @param The article title for which we want to open a wikipedia definition.
* @return false if some error occur.
*/
bool WebScreen::openWebView(MAUtil::String title)
{
MAUtil::String url = "http://en.wikipedia.org/wiki/" + title;
// Replace spaces.
replaceString(url," ","%20");
// Display the article.
maWidgetSetProperty(mWebView,MAW_WEB_VIEW_URL,url.c_str() );
}
/**
* Fill the list box with data provided by the engine.
*/
void SummaryScreen::fillListBox()
{
// Clear previous data.
mSnippetLabels.clear();
mSnippets.clear();
// For each snippet we need to know the article title.
mSnippets = mWiki->getAllSnippetsWithTitle();
// Destroy the list view, and recreate it.
if ( mListView != -1){
maWidgetDestroy(mListView);
}
mListView = createListView(mScreenWidth, 7*mScreenHeight/8);
setWidgetProperty(mListView, MAW_WIDGET_BACKGROUND_COLOR, DARK_WHITE, 16);
maWidgetAddChild(mMainLayout, mListView);
// If no titles are selected, display a short message.
if (mSnippets.size() == 0)
{
MAWidgetHandle listItem = maWidgetCreate(MAW_LIST_VIEW_ITEM);
maWidgetSetProperty(
listItem,
MAW_LIST_VIEW_ITEM_TEXT,
WARNING_NOTHING_SELECTED.c_str() );
maWidgetAddChild(mListView, listItem);
}
// Update the UI.
for (int i=0; i < mSnippets.size(); i++)
{
MAWidgetHandle listItem = maWidgetCreate(MAW_LIST_VIEW_ITEM);
maWidgetSetProperty(
listItem,
MAW_LIST_VIEW_ITEM_TEXT,
mSnippets[i].c_str() );
mSnippetLabels.add(listItem);
maWidgetAddChild(mListView,mSnippetLabels[i]);
}
}
/**
* Evaluate JavaScript code in a WebView.
* @param webViewHandle The MoSync handle to the WebView in which
* to evaluate the script (this handle is an integer id).
* @param script JavaScript string.
*/
void HybridMoblet::callJS(
MAWidgetHandle webViewHandle,
const MAUtil::String& script)
{
// Call the JavaScript code on the WebView.
MAUtil::String url = "javascript:" + script;
maWidgetSetProperty(
webViewHandle,
MAW_WEB_VIEW_URL,
url.c_str());
}
/**
* Utility function to create a button.
* Create a button with centered text.
* By default, font size is 15, and color DARK GREY.
* @param text The text for the button.
* @param fontColor The font color.
* @param fontSize The font size.
* @param width The widget width.
* @param height The widget height.
*/
MAWidgetHandle createButton(const char* text, int fontColor, int fontSize,
int width, int height)
{
MAWidgetHandle button = maWidgetCreate(MAW_BUTTON);
maWidgetSetProperty(button, MAW_BUTTON_TEXT, text);
// Set the widget size.
setWidgetProperty(button, MAW_WIDGET_WIDTH, width);
setWidgetProperty(button, MAW_WIDGET_HEIGHT, height);
maWidgetSetProperty(
button, MAW_BUTTON_TEXT_VERTICAL_ALIGNMENT, MAW_ALIGNMENT_CENTER);
maWidgetSetProperty(
button, MAW_BUTTON_TEXT_HORIZONTAL_ALIGNMENT, MAW_ALIGNMENT_CENTER);
setWidgetProperty(button,MAW_BUTTON_FONT_SIZE, fontSize);
setWidgetProperty(button,MAW_BUTTON_FONT_COLOR, fontColor, 16);
return button;
}
MAWidgetHandle createWebView()
{
// Create the WebView
MAWidgetHandle webView = maWidgetCreate("WebView");
// Set size of the WebView to fill the parent.
maWidgetSetProperty(webView, "width", "-1");
maWidgetSetProperty(webView, "height", "-1");
// Enable zooming.
maWidgetSetProperty(webView, "enableZoom", "true");
// Get the HTML for the page from a resource.
MAUtil::String html = Util::createTextFromHandle(INDEX_HTML);
// Set the HTML the WebView displays.
maWidgetSetProperty(webView, "html", html.c_str());
return webView;
}
int NativeScreen::handleImage(MAHandle myImage)
{
printf("handleImage(%d)", myImage);
char buffer[256];
sprintf(buffer, "%d", myImage);
printf("imgHandle=%s---hImage=%d", buffer, myImage);
// display the preview
int resCode = maWidgetSetProperty(mPreview, MAW_IMAGE_IMAGE, buffer);
return resCode;
}
int NativeScreen::handleImageData(MAHandle myImageData)
{
printf("handleImageData(%d)", myImageData);
int resCode = -1;
MAHandle hImage = maCreatePlaceholder();
int dataSize = maGetDataSize(myImageData);
int createImageRes = maCreateImageFromData(hImage, myImageData, 0, dataSize);
// Used for testing only.
MAUtil::String info = "Ready.Size = " + MAUtil::integerToString(dataSize)
+ " res = " + MAUtil::integerToString(createImageRes);
printf("\n%s\n", info.c_str());
if (createImageRes != RES_OK) {
// If the Android VM gets an out of memory exception, get the image handle instead.
maAlert("Memory Warning", " The image cannot be created. Try again", NULL, NULL, NULL);
maWidgetSetProperty(mEventReturnTypeCheckbox, MAW_CHECK_BOX_CHECKED, "false");
maImagePickerOpen();
} else {
char imgHandle[256];
sprintf(imgHandle, "%d", hImage);
printf("imgHandle=%s---hImage=%d", imgHandle, hImage);
// display the preview
resCode = maWidgetSetProperty(mPreview, MAW_IMAGE_IMAGE, imgHandle);
}
// at this point the new selected image is either displayed or non-existent (out of memory)
// the former displayed image (if exists) can be now safely deleted and reused
if (mLastDisplayedImageHandle != -1) {
maDestroyPlaceholder(mLastDisplayedImageHandle);
}
mLastDisplayedImageHandle = hImage;
return resCode;
}
void customEvent(const MAEvent& event) {
if(event.type == EVENT_TYPE_WIDGET) {
MAWidgetEventData* data = (MAWidgetEventData*)event.data;
// maybe we need to send an event whenever a gl
// surface is recreated (and textures have to be uploaded etc.)
if( data->eventType == MAW_EVENT_GL_VIEW_READY )
{
maWidgetSetProperty(data->widgetHandle, "bind", "");
mMoblet->init();
mMoblet->startDrawing();
mWasDrawing = true;
}
}
}
/**
* Method that implements the custom event listener interface.
* Widget events are sent as custom events.
*/
void customEvent(const MAEvent& event)
{
// Check if this is a widget event.
if (EVENT_TYPE_WIDGET == event.type)
{
// Get the widget event data structure.
MAWidgetEventData* eventData = (MAWidgetEventData*) event.data;
// MAW_EVENT_GL_VIEW_READY is sent when the GL view is
// ready for drawing.
if (MAW_EVENT_GL_VIEW_READY == eventData->eventType)
{
// Associate the OpenGL context with the GLView.
maWidgetSetProperty(mGLView, MAW_GL_VIEW_BIND, "");
// Create the texture we will use for rendering.
createTexture();
// Set the GL viewport.
int viewWidth = widgetGetPropertyInt(mGLView, MAW_WIDGET_WIDTH);
int viewHeight = widgetGetPropertyInt(mGLView, MAW_WIDGET_HEIGHT);
setViewport(viewWidth, viewHeight);
// Initialize OpenGL.
initGL();
// Flag that the GLView has been initialized.
mGLViewInitialized = true;
// Draw the initial scene.
draw();
// Start timer that will redraw the scene.
// This calls runTimerEvent each 20 ms.
MAUtil::Environment::getEnvironment().addTimer(this, 20, -1);
}
}
}
static void ogl_updateScreen(void) {
if(sNativeUIOpenGLView == -1)
maUpdateScreen();
else
maWidgetSetProperty(sNativeUIOpenGLView, "invalidate", "");
}
/**
* The purpose of this test is to test all properties that
* you can set on a screen.
*/
void testIconProperty()
{
TESTIFY_ASSERT_EQUAL( maWidgetSetProperty( getTestWidgetHandle( ), MAW_LIST_VIEW_ITEM_ICON, getIconHandleAsString( ) ), MAW_RES_OK );
}
