C++ HorizontalLayout::setWidth方法代码示例

/**
 * Create an layout containing a label and a check box widget.
 * The check box will be used to set the edit box #MAW_EDIT_BOX_MODE property.
 * Platform: iOS.
 */
HorizontalLayout* MainScreen::createModePropertyLayout()
{
	if (!isIOS())
	{
		return NULL;
	}

	HorizontalLayout* hLayout = new HorizontalLayout();
	hLayout->wrapContentVertically();

	Label* label = new Label();
	label->setText("Single line");
	hLayout->addChild(label);

	mSingleLineCheckBox = new CheckBox();
	mSingleLineCheckBox->setState(true);

	HorizontalLayout* spacer = new HorizontalLayout();
	int spacerWidth = this->getWidth() - label->getWidth() -
		mSingleLineCheckBox->getWidth();
	spacer->setWidth(spacerWidth);

	hLayout->addChild(spacer);
	hLayout->addChild(mSingleLineCheckBox);

	return hLayout;
}

/**
 * Create a new row for settings.
 * It contains a check box/button and a label.
 */
HorizontalLayout* MainScreen::createRow(Widget* check, Label* label)
{
	HorizontalLayout* hLayout = new HorizontalLayout();
	if ( check != NULL )
	{
		hLayout->addChild(check);
		HorizontalLayout* space = new HorizontalLayout();
		space->setWidth(10);
		hLayout->addChild(space);
	}
	hLayout->addChild(label);
	return hLayout;
}

/**
 * Create a new row for settings.
 * It contains two widgets separated by a spacer.
 */
HorizontalLayout* SettingsScreen::createRow(
	Widget* firstWidget,
	Widget* secondWidget)
{
	HorizontalLayout* hLayout = new HorizontalLayout();
	if ( firstWidget != NULL )
	{
		hLayout->addChild(firstWidget);
		HorizontalLayout* space = new HorizontalLayout();
		space->setWidth(10);
		hLayout->addChild(space);
	}
	hLayout->addChild(secondWidget);
	return hLayout;
}

/**
 * If there is no list populates the List View Widget with the project data
 * from mProjects vector. Else destroys and deallocates previous list items
 * and creates new ones.
 */
void WorkspaceLayout::updateProjectList(MAUtil::Vector <reloadProject> * projects)
{
	// Remove The ListView and add An Activity Indicator
	lprintfln("Updating Project List");
	mListView->setVisible(false);

	/**
	 * FIXME Removing listView and adding Activity indicator causes
	 * the list view not getting events until some point,
	 * when removing activity indicator to add the list again.
	 */
	//this->removeChild(mListView);
	//this->addChild(mActivityIndicatorContainer);

	// If there was a project Selected before update remove the
	// control buttons
	if(mSelectedProject != -1)
	{
		Widget *h = mListView->getChild(mSelectedProject)->getChild(0);
		h->removeChild(h->getChild(1));
		h->removeChild(h->getChild(1));
	}

	// ReInitialize selected project
	mSelectedProject = -1;
	mSelectedProjectName = "";

	// Delete all the widgets from the ListView
	int prProjects = mListView->countChildWidgets();
	if(prProjects != 0)
	{
		for(int i = 0; i < prProjects; i++)
		{
			Widget *listItemWidget = mListView->getChild(0); // list Item Widget

			Widget *hLayout = listItemWidget->getChild(0); // horizontal layout widget
			for( int j = 0; j < hLayout->countChildWidgets(); j++)
			{
				Widget * w = hLayout->getChild(0);
				hLayout->removeChild(w);
				delete w;
			}

			listItemWidget->removeChild(hLayout);

			delete hLayout;

			mListView->removeChild(listItemWidget);
			delete listItemWidget;
		}
	}

	// Re-populate the ListView with projects
	for (MAUtil::Vector <reloadProject>::iterator i = projects->begin(); i != projects->end(); i++)
	{
		// New List Itemprojects
		ListViewItem* item = new ListViewItem();
		item->setHeight(mWidgetHeight);
		item->fillSpaceHorizontally();

		// New Horizontal Layout
		HorizontalLayout *itemHorizontalLayout = new HorizontalLayout();
		itemHorizontalLayout->fillSpaceHorizontally();
		itemHorizontalLayout->setHeight(mWidgetHeight);

		// New Label
		Label* projectNameLabel = new Label();
		projectNameLabel->setTextHorizontalAlignment(MAW_ALIGNMENT_LEFT);
		projectNameLabel->setTextVerticalAlignment(MAW_ALIGNMENT_CENTER);
		projectNameLabel->setText(i->name);
		projectNameLabel->fillSpaceHorizontally();
		projectNameLabel->fillSpaceVertically();

		if (mOS.find("iPhone") >= 0)
		{
			itemHorizontalLayout->setWidth(item->getWidth());
			projectNameLabel->setFontColor(0xffffff);
		}

		itemHorizontalLayout->addChild(projectNameLabel);

		item->addChild(itemHorizontalLayout);

		mListView->addChild(item);
	}
	mListView->setVisible(true);

	// Remove Indicator and Add Project ListView
	//this->addChild(mListView);
	//this->removeChild(mActivityIndicatorContainer);

}

/**
 * Creates and adds widgets to exemplify video widget.
 */
void VideoScreen::addVideoWidgets()
{
	// Add a label that is refreshed at media source events.
	mSourceStatus = new Label();
	mSourceStatus->setText(SOURCE_LOADING);
	mSourceStatus->setFontColor(INTENSE_BLUE);
	mSourceStatus->setFontSize(12);
	mMainLayout->addChild(mSourceStatus);

	// Add a spacer of 10px before the buttons.
	mTopSpacerLayout = new VerticalLayout();
	mTopSpacerLayout->setBackgroundColor(INTENSE_BLUE);
	mTopSpacerLayout->setHeight(10);
	mMainLayout->addChild(mTopSpacerLayout);

	createPlaybackButtons();

	// Add duration label.
	mDuration = new Label();
	mDuration->setFontColor(INTENSE_BLUE);
	mDuration->setText("Video Duration");
	mMainLayout->addChild(mDuration);

	// Add the video widget.
	/**
	 * A media controller is attached to this view, and acts differently
	 * depending on platform.
	 * On Android typically contains the buttons like "Play/Pause", "Rewind",
	 * Fast Forward" and a progress slider. It takes care of synchronizing the
	 * controls with the state of the MediaPlayer.
	 * The set of controls are in a floating window next to the video widget.
	 * The window will disappear if left idle for three seconds and reappear
	 * when the user touches the video view.
	 */
	mVideoView = new VideoView();
	mVideoView->fillSpaceHorizontally();
	mVideoView->setHeight(mScreenHeight/3);
	mVideoView->setWidth(MAW_CONSTANT_FILL_AVAILABLE_SPACE);
	mMainLayout->addChild(mVideoView);

	// Add an edit box for another urls or local paths.
	mEditBox = new EditBox();
//	mEditBox->setPlaceholder("Set video uri or path");
	mEditBox->fillSpaceHorizontally();
	mMainLayout->addChild(mEditBox);

	// Add layout for load path or uri buttons.
	mLoadLayout = new HorizontalLayout();
	mLoadLayout->wrapContentVertically();

	mSetUrl = new Button();
	mSetUrl->setFontColor(INTENSE_BLUE);
	// Apply a gradient ( on Android, or blank color on iOS).
	if ( mSetUrl->setBackgroundGradient(SEA_GREEN, DARK_SEA_GREEN) != MAW_RES_OK )
	{
		mSetUrl->setBackgroundColor(DARK_SEA_GREEN);
	}
	mSetUrl->setText("Load url");

	mSetPath = new Button();
	mSetPath->setFontColor(INTENSE_BLUE);
	// Apply a gradient.
	if ( mSetPath->setBackgroundGradient(SEA_GREEN, DARK_SEA_GREEN) != MAW_RES_OK )
	{
		mSetPath->setBackgroundColor(DARK_SEA_GREEN);
	}
	mSetPath->setText("Load path");

	HorizontalLayout* urlLayout = new HorizontalLayout();
	urlLayout->setWidth(mScreenWidth/2);
	urlLayout->setChildHorizontalAlignment(MAW_ALIGNMENT_CENTER);
	urlLayout->addChild(mSetUrl);

	HorizontalLayout* pathLayout = new HorizontalLayout();
	pathLayout->setWidth(mScreenWidth/2);
	pathLayout->setChildHorizontalAlignment(MAW_ALIGNMENT_CENTER);
	pathLayout->addChild(mSetPath);

	mLoadLayout->addChild(urlLayout);
	mLoadLayout->addChild(pathLayout);

	mMainLayout->addChild(mLoadLayout);
}

/**
 * Create the controls area with Play, Pause and Stop buttons.
 */
void VideoScreen::createPlaybackButtons()
{
	/**
	 * Add 3 buttons in 1 row: Play, Pause and stop.
	 * All buttons are disabled by default, until source can be played.
	 */
	mButtonsLayout = new HorizontalLayout();
	mButtonsLayout->wrapContentVertically();
	mButtonsLayout->setChildHorizontalAlignment(MAW_ALIGNMENT_CENTER);

	mPlay = new Button();
	// Apply a gradient ( on Android, or blank color on iOS).
	if ( mPlay->setBackgroundGradient(SEA_GREEN, DARK_SEA_GREEN) != MAW_RES_OK )
	{
		mPlay->setBackgroundColor(DARK_SEA_GREEN);
	}
	mPlay->setText("Play");
	mPlay->setEnabled(false);
	mPlay->setFontColor(INTENSE_BLUE);

	mPause = new Button();
	// Apply a gradient ( on Android, or blank color on iOS).
	if ( mPause->setBackgroundGradient(SEA_GREEN, DARK_SEA_GREEN) != MAW_RES_OK )
	{
		mPause->setBackgroundColor(DARK_SEA_GREEN);
	}
	mPause->setFontColor(INTENSE_BLUE);
	mPause->setEnabled(false);
	mPause->setText("Pause");

	mStop = new Button();
	mStop->setEnabled(false);
	// Apply a gradient ( on Android, or blank color on iOS).
	if ( mStop->setBackgroundGradient(SEA_GREEN, DARK_SEA_GREEN) != MAW_RES_OK )
	{
		mStop->setBackgroundColor(DARK_SEA_GREEN);
	}
	mStop->setFontColor(INTENSE_BLUE);
	mStop->setText("Stop");

	HorizontalLayout* playLayout = new HorizontalLayout();
	playLayout->setChildHorizontalAlignment(MAW_ALIGNMENT_CENTER);
	playLayout->setWidth(mScreenWidth/3);
	playLayout->addChild(mPlay);

	HorizontalLayout* pauseLayout = new HorizontalLayout();
	pauseLayout->setChildHorizontalAlignment(MAW_ALIGNMENT_CENTER);
	pauseLayout->setWidth(mScreenWidth/3);
	pauseLayout->addChild(mPause);

	HorizontalLayout* stopLayout = new HorizontalLayout();
	stopLayout->setChildHorizontalAlignment(MAW_ALIGNMENT_CENTER);
	stopLayout->setWidth(mScreenWidth/3);
	stopLayout->addChild(mStop);

	mButtonsLayout->addChild(playLayout);
	mButtonsLayout->addChild(pauseLayout);
	mButtonsLayout->addChild(stopLayout);

	mMainLayout->addChild(mButtonsLayout);
}

/**
 * Creates an empty widget with a given width.
 * The ownership of the result is passed to the caller.
 * @return An empty widget.
 */
Widget* CreateNotificationScreen::createSpacer(const int width)
{
	HorizontalLayout* spacer = new HorizontalLayout();
	spacer->setWidth(width);
	return spacer;
}

/**
 * Creates an empty widget with a given width.
 * The ownership of the result is passed to the caller.
 * @return An empty widget.
 */
Widget* SettingsScreen::createSpacer(const int width)
{
    HorizontalLayout* spacer = new HorizontalLayout();
    spacer->setWidth(width);
    return spacer;
}