Claudio Valerio
13 years ago
parent
a9ba75acbb
commit
9444787bd3
@ -1,229 +0,0 @@ |
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#include <QDebug> |
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#include <QScrollBar> |
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#include <QApplication> |
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#include <QPainter> |
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#include "globals/UBGlobals.h" |
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#include "UBWidgetList.h" |
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UBWidgetList::UBWidgetList(QWidget* parent, eWidgetListOrientation orientation, const char* name):QScrollArea(parent) |
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, mCanRemove(true) |
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, mpLayout(NULL) |
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, mpContainer(NULL) |
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, mMargin(10) |
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, mListElementsSpacing(10) |
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, mpEmptyLabel(NULL) |
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, mpCurrentWidget(NULL) |
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{ |
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setObjectName(name); |
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mOrientation = orientation; |
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mpContainer = new QWidget(this); |
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mpEmptyLabel = new QLabel(this); |
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mpEmptyLabel->setObjectName("emptyString"); |
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mpEmptyLabel->setWordWrap(true); |
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mpEmptyLabel->setAlignment(Qt::AlignCenter); |
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if(eWidgetListOrientation_Vertical == orientation){ |
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setVerticalScrollBarPolicy(Qt::ScrollBarAsNeeded); |
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
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mpLayout = new QVBoxLayout(mpContainer); |
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} |
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else{ |
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setHorizontalScrollBarPolicy(Qt::ScrollBarAsNeeded); |
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff); |
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mpLayout = new QHBoxLayout(mpContainer); |
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} |
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mpLayout->setContentsMargins(margin(), margin(), margin(), margin()); |
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mpContainer->setLayout(mpLayout); |
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setWidget(mpContainer); |
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} |
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|
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UBWidgetList::~UBWidgetList() |
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{ |
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DELETEPTR(mpEmptyLabel); |
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DELETEPTR(mpLayout); |
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DELETEPTR(mpContainer); |
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} |
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void UBWidgetList::addWidget(QWidget *widget) |
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{ |
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if(NULL != mpLayout && NULL != widget){ |
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widget->setParent(mpContainer); |
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mpEmptyLabel->setVisible(false); |
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mWidgetInfo[widget] = widget->size(); |
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updateView(size()); |
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mpLayout->addWidget(widget); |
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// This call is used only to refresh the size of the widgets
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updateSizes(); |
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} |
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} |
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void UBWidgetList::removeWidget(QWidget *widget) |
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{ |
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if(NULL != mpLayout && NULL != widget){ |
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mpLayout->removeWidget(widget); |
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mWidgetInfo.remove(widget); |
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widget->setVisible(false); |
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updateView(size()); |
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if(0 == mpLayout->count()){ |
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mpEmptyLabel->setVisible(true); |
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} |
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if(mpCurrentWidget == widget){ |
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mpCurrentWidget = NULL; |
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} |
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} |
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} |
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int UBWidgetList::scaleWidgets(QSize pSize) |
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{ |
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// to remove the first spacing that shouldn't be there.
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int result = -mListElementsSpacing; |
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foreach(QWidget* eachWidget, mWidgetInfo.keys()){ |
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qreal scaleFactor = 0; |
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int newWidgetWidth = pSize.width(); |
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int newWidgetHeight = pSize.height(); |
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if(eWidgetListOrientation_Vertical == mOrientation){ |
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scaleFactor = (float)mWidgetInfo[eachWidget].width() / (float)pSize.width(); |
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newWidgetHeight = mWidgetInfo[eachWidget].height()/scaleFactor; |
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result += newWidgetHeight; |
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eachWidget->setMinimumHeight(newWidgetHeight- 1); |
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eachWidget->setMaximumHeight(newWidgetHeight); |
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} |
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else{ |
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scaleFactor = (float)mWidgetInfo[eachWidget].height() / (float)pSize.height(); |
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newWidgetWidth = mWidgetInfo[eachWidget].width()/scaleFactor; |
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result += newWidgetWidth; |
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eachWidget->setMinimumWidth(newWidgetWidth - 1); |
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eachWidget->setMaximumWidth(newWidgetWidth); |
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} |
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//Adding a vertical/horizontal space between each element of the list
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result += mListElementsSpacing; |
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} |
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return result; |
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} |
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void UBWidgetList::scaleContainer(QSize pSize, int updateValue) |
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{ |
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if(eWidgetListOrientation_Vertical == mOrientation) |
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mpContainer->resize(pSize.width(), updateValue); |
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else |
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mpContainer->resize(updateValue, pSize.height()); |
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} |
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void UBWidgetList::updateView(QSize pSize) |
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{ |
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// Widgets on list are resized automatically to fit the mpcontainer.
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// so if you want to keep the aspect ratio you have to calculate
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// the sum of the new widget height and give it to the mpContainer.
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// The container resize will trig the widgets resize and the good
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// height permits to respect the aspect ratio.
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int updatedValue = scaleWidgets(pSize); |
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scaleContainer(pSize,updatedValue); |
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} |
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void UBWidgetList::resizeEvent(QResizeEvent *ev) |
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{ |
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Q_UNUSED(ev); |
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mpEmptyLabel->setGeometry((width() - mpEmptyLabel->width()) / 2, |
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(height() - mpEmptyLabel->height()) /2, |
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mpEmptyLabel->width(), |
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mpEmptyLabel->height()); |
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updateView(size()); |
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updateSizes(); |
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} |
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void UBWidgetList::mousePressEvent(QMouseEvent *ev) |
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{ |
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Q_UNUSED(ev); |
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if(mCanRemove){ |
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QWidget* pWAt = widgetAt(ev->pos()); |
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if(NULL != mpCurrentWidget){ |
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if(pWAt != mpCurrentWidget){ |
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mpCurrentWidget->setActionsVisible(false); |
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update(); |
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} |
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} |
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mpCurrentWidget = dynamic_cast<UBActionableWidget*>(pWAt); |
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if(NULL != mpCurrentWidget){ |
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mpCurrentWidget->setActionsVisible(true); |
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update(); |
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} |
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} |
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update(); |
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} |
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QWidget* UBWidgetList::widgetAt(QPoint p) |
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{ |
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QWidget* pW = NULL; |
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pW = childAt(p); |
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if(NULL != pW){ |
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do{ |
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if( "UBTeacherStudentAction" == pW->objectName() || |
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"UBUrlWidget" == pW->objectName() || |
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"UBTBMediaPicture" == pW->objectName() || |
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"UBMediaWidget" == pW->objectName()){ |
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return pW; |
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}else{ |
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pW = pW->parentWidget(); |
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} |
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}while(NULL != pW && this != pW); |
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} |
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return pW; |
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} |
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void UBWidgetList::updateSizes() |
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{ |
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// Resize all the widgets
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foreach(QWidget* eachWidget, mWidgetInfo.keys()){ |
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if(NULL != eachWidget){ |
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QSize originalSize = mWidgetInfo[eachWidget]; |
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int currentWidth = mpContainer->width(); |
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int currentHeight = mpContainer->height(); |
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if(eWidgetListOrientation_Vertical == mOrientation){ |
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if(verticalScrollBar()->isVisible()){ |
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currentWidth -= verticalScrollBar()->width(); |
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eachWidget->setStyleSheet(QString("margin-right:%0;").arg(verticalScrollBar()->width())); |
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} |
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float scaleFactor = (float)currentWidth/(float)originalSize.width(); |
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currentHeight = originalSize.height()*scaleFactor; |
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}else{ |
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if(horizontalScrollBar()->isVisible()){ |
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currentHeight -= horizontalScrollBar()->height(); |
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eachWidget->setStyleSheet(QString("padding-bottom:%0;").arg(horizontalScrollBar()->height())); |
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} |
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float scaleFactor = (float)currentHeight/(float)originalSize.height(); |
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currentWidth = originalSize.width()*scaleFactor; |
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} |
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eachWidget->resize(currentWidth, currentHeight); |
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} |
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} |
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} |
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void UBWidgetList::setMargin(int margin) |
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{ |
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mMargin = margin; |
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} |
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int UBWidgetList::margin() |
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{ |
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return mMargin; |
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} |
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void UBWidgetList::setEmptyText(const QString &text) |
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{ |
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if(NULL != mpEmptyLabel){ |
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mpEmptyLabel->setText(text); |
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} |
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} |
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bool UBWidgetList::empty() |
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{ |
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return mWidgetInfo.empty(); |
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} |
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@ -1,69 +0,0 @@ |
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#ifndef UBWIDGETLIST_H |
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#define UBWIDGETLIST_H |
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#include <QWidget> |
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#include <QScrollArea> |
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#include <QBoxLayout> |
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#include <QVBoxLayout> |
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#include <QHBoxLayout> |
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#include <QResizeEvent> |
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#include <QVector> |
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#include <QLabel> |
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#include "interfaces/IResizeable.h" |
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#include "customWidgets/UBActionableWidget.h" |
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typedef enum{ |
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eWidgetListOrientation_Vertical, |
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eWidgetListOrientation_Horizontal |
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}eWidgetListOrientation; |
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class UBWidgetList : public QScrollArea |
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{ |
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Q_OBJECT |
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typedef struct |
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{ |
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QSize size; |
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bool isResizable; |
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} sWidgetProperties; |
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public: |
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UBWidgetList(QWidget* parent=0, eWidgetListOrientation orientation = eWidgetListOrientation_Vertical, const char* name = "UBWidgetList"); |
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~UBWidgetList(); |
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void addWidget(QWidget* widget); |
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void removeWidget(QWidget* widget); |
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void setMargin(int margin); |
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void setEmptyText(const QString& text); |
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int margin(); |
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bool empty(); |
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void setListElementSpacing(int margin) { mListElementsSpacing = margin; } |
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int listElementsSpacing() {return mListElementsSpacing; } |
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signals: |
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void closeWidget(QWidget* w); |
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protected: |
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bool mCanRemove; |
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void resizeEvent(QResizeEvent* ev); |
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void mousePressEvent(QMouseEvent* ev); |
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private: |
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QWidget* widgetAt(QPoint p); |
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int scaleWidgets(QSize pSize); |
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void scaleContainer(QSize pSize, int updateValue); |
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void updateView(QSize pSize); |
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void updateSizes(); |
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QBoxLayout* mpLayout; |
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QWidget* mpContainer; |
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eWidgetListOrientation mOrientation; |
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int mMargin; |
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int mListElementsSpacing; |
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QMap<QWidget*, QSize> mWidgetInfo; |
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QLabel* mpEmptyLabel; |
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UBActionableWidget* mpCurrentWidget; |
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}; |
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#endif // UBWIDGETLIST_H
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@ -1,8 +1,8 @@ |
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HEADERS += src/customWidgets/UBWidgetList.h \ |
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HEADERS += \ |
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src/customWidgets/UBMediaWidget.h \ |
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src/customWidgets/UBActionableWidget.h |
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SOURCES += src/customWidgets/UBWidgetList.cpp \ |
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SOURCES += \ |
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src/customWidgets/UBMediaWidget.cpp \ |
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src/customWidgets/UBActionableWidget.cpp |
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