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This commit is contained in:
Gary Wang 2019-09-29 23:53:29 +08:00
parent a4d8376c20
commit d106d9beee
13 changed files with 477 additions and 56 deletions
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93
PineapplePictures.pro
View File

@ -1,45 +1,48 @@
#------------------------------------------------- #-------------------------------------------------
# #
# Project created by QtCreator 2019-09-26T23:36:07 # Project created by QtCreator 2019-09-26T23:36:07
# #
#------------------------------------------------- #-------------------------------------------------
QT += core gui QT += core gui svg
greaterThan(QT_MAJOR_VERSION, 4): QT += widgets greaterThan(QT_MAJOR_VERSION, 4): QT += widgets
TARGET = PineapplePictures TARGET = PineapplePictures
TEMPLATE = app TEMPLATE = app
# The following define makes your compiler emit warnings if you use # The following define makes your compiler emit warnings if you use
# any feature of Qt which has been marked as deprecated (the exact warnings # any feature of Qt which has been marked as deprecated (the exact warnings
# depend on your compiler). Please consult the documentation of the # depend on your compiler). Please consult the documentation of the
# deprecated API in order to know how to port your code away from it. # deprecated API in order to know how to port your code away from it.
DEFINES += QT_DEPRECATED_WARNINGS DEFINES += QT_DEPRECATED_WARNINGS
# You can also make your code fail to compile if you use deprecated APIs. # You can also make your code fail to compile if you use deprecated APIs.
# In order to do so, uncomment the following line. # In order to do so, uncomment the following line.
# You can also select to disable deprecated APIs only up to a certain version of Qt. # You can also select to disable deprecated APIs only up to a certain version of Qt.
#DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0 #DEFINES += QT_DISABLE_DEPRECATED_BEFORE=0x060000 # disables all the APIs deprecated before Qt 6.0.0
CONFIG += c++11 CONFIG += c++11
SOURCES += \ SOURCES += \
main.cpp \ main.cpp \
mainwindow.cpp \ mainwindow.cpp \
graphicsview.cpp \ graphicsview.cpp \
bottombuttongroup.cpp \ bottombuttongroup.cpp \
graphicsscene.cpp graphicsscene.cpp
HEADERS += \ HEADERS += \
mainwindow.h \ mainwindow.h \
graphicsview.h \ graphicsview.h \
bottombuttongroup.h \ bottombuttongroup.h \
graphicsscene.h graphicsscene.h
FORMS += FORMS +=
# Default rules for deployment. # Default rules for deployment.
qnx: target.path = /tmp/$${TARGET}/bin qnx: target.path = /tmp/$${TARGET}/bin
else: unix:!android: target.path = /opt/$${TARGET}/bin else: unix:!android: target.path = /opt/$${TARGET}/bin
!isEmpty(target.path): INSTALLS += target !isEmpty(target.path): INSTALLS += target
RESOURCES += \
resources.qrc

13
bottombuttongroup.cpp
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@ -24,15 +24,16 @@ BottomButtonGroup::BottomButtonGroup(QWidget *parent)
"}"); "}");
auto newBtn = [](QString text) -> QPushButton * { auto newBtn = [](QString text) -> QPushButton * {
QPushButton * btn = new QPushButton(text); QPushButton * btn = new QPushButton(QIcon(QStringLiteral(":/icons/") + text), "");
btn->setIconSize(QSize(40, 40));
btn->setFixedSize(40, 40); btn->setFixedSize(40, 40);
return btn; return btn;
}; };
addButton(newBtn("1:1")); addButton(newBtn("zoom-original"));
addButton(newBtn("Full")); addButton(newBtn("view-fullscreen"));
addButton(newBtn("Zoom+")); addButton(newBtn("zoom-in"));
addButton(newBtn("Zoom-")); addButton(newBtn("zoom-out"));
addButton(newBtn("Rorate")); addButton(newBtn("object-rorate-right"));
} }
void BottomButtonGroup::addButton(QAbstractButton *button) void BottomButtonGroup::addButton(QAbstractButton *button)

10
graphicsscene.cpp
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@ -5,6 +5,7 @@
#include <QDebug> #include <QDebug>
#include <QGraphicsItem> #include <QGraphicsItem>
#include <QUrl> #include <QUrl>
#include <QGraphicsSvgItem>
GraphicsScene::GraphicsScene(QObject *parent) GraphicsScene::GraphicsScene(QObject *parent)
: QGraphicsScene(parent) : QGraphicsScene(parent)
@ -32,3 +33,12 @@ void GraphicsScene::showText(const QString &text)
m_theThing = textItem; m_theThing = textItem;
this->setSceneRect(m_theThing->boundingRect()); this->setSceneRect(m_theThing->boundingRect());
} }
void GraphicsScene::showSvg(const QString &filepath)
{
this->clear();
QGraphicsSvgItem * svgItem = new QGraphicsSvgItem(filepath);
this->addItem(svgItem);
m_theThing = svgItem;
this->setSceneRect(m_theThing->boundingRect());
}

1
graphicsscene.h
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@ -12,6 +12,7 @@ public:
void showImage(const QPixmap &pixmap); void showImage(const QPixmap &pixmap);
void showText(const QString &text); void showText(const QString &text);
void showSvg(const QString &filepath);
private: private:
QGraphicsItem * m_theThing; QGraphicsItem * m_theThing;

21
graphicsview.cpp
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@ -35,6 +35,11 @@ void GraphicsView::showText(const QString &text)
scene()->showText(text); scene()->showText(text);
} }
void GraphicsView::showSvg(const QString &filepath)
{
scene()->showSvg(filepath);
}
GraphicsScene *GraphicsView::scene() const GraphicsScene *GraphicsView::scene() const
{ {
return qobject_cast<GraphicsScene*>(QGraphicsView::scene()); return qobject_cast<GraphicsScene*>(QGraphicsView::scene());
@ -129,12 +134,18 @@ void GraphicsView::dropEvent(QDropEvent *event)
if (mimeData->hasUrls()) { if (mimeData->hasUrls()) {
QUrl url(mimeData->urls().first()); QUrl url(mimeData->urls().first());
QImageReader imageReader(url.toLocalFile()); QString filePath(url.toLocalFile());
QImage::Format imageFormat = imageReader.imageFormat();
if (imageFormat == QImage::Format_Invalid) { if (filePath.endsWith(".svg")) {
showText("File is not a valid image"); showSvg(filePath);
} else { } else {
showImage(QPixmap::fromImageReader(&imageReader)); QImageReader imageReader(filePath);
QImage::Format imageFormat = imageReader.imageFormat();
if (imageFormat == QImage::Format_Invalid) {
showText("File is not a valid image");
} else {
showImage(QPixmap::fromImageReader(&imageReader));
}
} }
} else if (mimeData->hasImage()) { } else if (mimeData->hasImage()) {
QImage img = qvariant_cast<QImage>(mimeData->imageData()); QImage img = qvariant_cast<QImage>(mimeData->imageData());

1
graphicsview.h
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@ -11,6 +11,7 @@ public:
void showImage(const QPixmap &pixmap); void showImage(const QPixmap &pixmap);
void showText(const QString &text); void showText(const QString &text);
void showSvg(const QString &filepath);
GraphicsScene * scene() const; GraphicsScene * scene() const;
void setScene(GraphicsScene *scene); void setScene(GraphicsScene *scene);

70
icons/object-rorate-right.svg Normal file
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main.cpp
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@ -4,6 +4,7 @@
int main(int argc, char *argv[]) int main(int argc, char *argv[])
{ {
QApplication a(argc, argv); QApplication a(argc, argv);
MainWindow w; MainWindow w;
w.show(); w.show();

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resources.qrc Normal file
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@ -0,0 +1,9 @@
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