diff --git a/button.cpp b/button.cpp index 4cec15e..ff9f2b9 100644 --- a/button.cpp +++ b/button.cpp @@ -1,8 +1,10 @@ #include "button.h" #include #include +#include #include #include +#include Button::Button(const QString &type) : Item(type) { @@ -11,7 +13,7 @@ Button::Button(const QString &type) : Item(type) QRectF Button::boundingRect() const { - return QRectF(0, 0, 50, 50); + return QRectF(0, 0, currentSize_.width(), currentSize_.height()); } void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *) @@ -21,10 +23,10 @@ void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QW if (type_ == "按钮") { if (!imagePath_.isEmpty() && !customPixmap_.isNull()) { - painter->drawPixmap(0,0,50,50,customPixmap_); + painter->drawPixmap(0, 0, currentSize_.width(), currentSize_.height(), customPixmap_); } else{ - painter->drawRect(0,0,50,50); + painter->drawRect(0, 0, currentSize_.width(), currentSize_.height()); } } if (!registerId_.isEmpty()) { @@ -40,7 +42,7 @@ void Button::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QW { text = QString("%1\nOFF").arg(registerId()); } - painter->drawText(QRectF(13, 13, 26, 26), Qt::AlignCenter, text); + painter->drawText(QRectF(0, 0, currentSize_.width(), currentSize_.height()), Qt::AlignCenter, text); painter->restore(); } if (option->state & QStyle::State_Selected) { @@ -103,8 +105,61 @@ void Button::loadImage() { if(!imagePath_.isEmpty()){ customPixmap_ = QPixmap(imagePath_); - if (!customPixmap_.isNull()){ - customPixmap_ = customPixmap_.scaled(50, 50, Qt::KeepAspectRatio, Qt::SmoothTransformation); - } +// if (!customPixmap_.isNull()){ +// customPixmap_ = customPixmap_.scaled(50, 50, Qt::KeepAspectRatio, Qt::SmoothTransformation); +// } + } +} + +void Button::mousePressEvent(QGraphicsSceneMouseEvent *event) +{ + // 检查是否点击了调整手柄 + QRectF resizeHandle = QRectF(currentSize_.width() - resizeHandleSize_, + currentSize_.height() - resizeHandleSize_, + resizeHandleSize_, + resizeHandleSize_); + + if (resizeHandle.contains(event->pos())) { + resizing_ = true; + resizeStartPos_ = event->scenePos(); + originalSize_ = currentSize_; // 当前大小 + event->accept(); + } else { + // 否则调用基类处理（移动等） + QGraphicsObject::mousePressEvent(event); + } +} + +void Button::mouseMoveEvent(QGraphicsSceneMouseEvent *event) +{ + if (resizing_) { + // 计算新的尺寸 + QPointF delta = event->scenePos() - resizeStartPos_; + qreal newWidth = originalSize_.width() + delta.x(); + qreal newHeight = originalSize_.height() + delta.y(); + + // 限制最小尺寸 + if (newWidth < 20) newWidth = 20; + if (newHeight < 20) newHeight = 20; + + // 更新当前尺寸 + currentSize_ = QSizeF(newWidth, newHeight); + + // 准备几何变化 + prepareGeometryChange(); + update(); // 更新显示 + event->accept(); + } else { + QGraphicsObject::mouseMoveEvent(event); + } +} + +void Button::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) +{ + if (resizing_) { + resizing_ = false; + event->accept(); + } else { + QGraphicsObject::mouseReleaseEvent(event); } } diff --git a/button.h b/button.h index b01017d..b68dddd 100644 --- a/button.h +++ b/button.h @@ -15,9 +15,20 @@ public: void setCustomImage(const QString& imagePath); void loadImage(); + // 鼠标事件处理 + void mousePressEvent(QGraphicsSceneMouseEvent *event) override; + void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override; + void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override; + private: QString imagePath_; QPixmap customPixmap_; + bool resizing_ = false; // 是否正在调整大小 + QPointF resizeStartPos_; // 调整大小开始位置 + QSizeF originalSize_; // 调整前的原始大小 + QSizeF currentSize_ = QSizeF(50, 50); // 当前实际尺寸 + int resizeHandleSize_ = 8; // 调整手柄大小 + int resizeMargin_ = 5; // 调整边距 }; #endif // BUTTON_H diff --git a/light.cpp b/light.cpp index 6694073..3493244 100644 --- a/light.cpp +++ b/light.cpp @@ -3,6 +3,8 @@ #include #include #include +#include +#include Light::Light(const QString &type) : Item(type) { @@ -11,7 +13,7 @@ Light::Light(const QString &type) : Item(type) QRectF Light::boundingRect() const { - return QRectF(0, 0, 50, 50); + return QRectF(0, 0, currentSize_.width(), currentSize_.height()); } void Light::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *) @@ -20,16 +22,16 @@ void Light::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWi if (type_ == "指示灯") { if (state() && !onPixmap_.isNull()) { - painter->drawPixmap(0, 0, 50, 50, onPixmap_); + painter->drawPixmap(0, 0, currentSize_.width(), currentSize_.height(), onPixmap_); } else if (!state() && !offPixmap_.isNull()) { - painter->drawPixmap(0, 0, 50, 50, offPixmap_); + painter->drawPixmap(0, 0, currentSize_.width(), currentSize_.height(), offPixmap_); } else { if (state()) { painter->setBrush(Qt::green); // 激活状态 } else { painter->setBrush(Qt::white); // 未激活状态 } - painter->drawEllipse(0,0,50,50); + painter->drawEllipse(0, 0, currentSize_.width(), currentSize_.height()); } } if (!registerId_.isEmpty()) { @@ -37,7 +39,7 @@ void Light::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWi painter->setFont(QFont("Arial", 8)); painter->setPen(Qt::black); QString text = QString("%1").arg(registerId()); - painter->drawText(QRectF(13, 13, 26, 26), Qt::AlignCenter, text); + painter->drawText(QRectF(0, 0, currentSize_.width(), currentSize_.height()), Qt::AlignCenter, text); painter->restore(); } if (option->state & QStyle::State_Selected) { @@ -115,14 +117,60 @@ void Light::loadImage() { if (!onImagePath_.isEmpty()) { onPixmap_ = QPixmap(onImagePath_); - if (!onPixmap_.isNull()) { - onPixmap_ = onPixmap_.scaled(50, 50, Qt::KeepAspectRatio, Qt::SmoothTransformation); - } } if (!offImagePath_.isEmpty()) { offPixmap_ = QPixmap(offImagePath_); - if (!offPixmap_.isNull()) { - offPixmap_ = offPixmap_.scaled(50, 50, Qt::KeepAspectRatio, Qt::SmoothTransformation); - } + } +} + +void Light::mousePressEvent(QGraphicsSceneMouseEvent *event) +{ + // 检查是否点击了调整手柄 + QRectF resizeHandle = QRectF(currentSize_.width() - resizeHandleSize_, + currentSize_.height() - resizeHandleSize_, + resizeHandleSize_, resizeHandleSize_); + + if (resizeHandle.contains(event->pos())) { + resizing_ = true; + resizeStartPos_ = event->scenePos(); + originalSize_ = currentSize_; // 当前大小 + event->accept(); + } else { + // 否则调用基类处理（移动等） + QGraphicsObject::mousePressEvent(event); + } +} + +void Light::mouseMoveEvent(QGraphicsSceneMouseEvent *event) +{ + if (resizing_) { + // 计算新的尺寸 + QPointF delta = event->scenePos() - resizeStartPos_; + qreal newWidth = originalSize_.width() + delta.x(); + qreal newHeight = originalSize_.height() + delta.y(); + + // 限制最小尺寸 + if (newWidth < 20) newWidth = 20; + if (newHeight < 20) newHeight = 20; + + // 更新当前尺寸 + currentSize_ = QSizeF(newWidth, newHeight); + + // 准备几何变化 + prepareGeometryChange(); + update(); // 更新显示 + event->accept(); + } else { + QGraphicsObject::mouseMoveEvent(event); + } +} + +void Light::mouseReleaseEvent(QGraphicsSceneMouseEvent *event) +{ + if (resizing_) { + resizing_ = false; + event->accept(); + } else { + QGraphicsObject::mouseReleaseEvent(event); } } diff --git a/light.h b/light.h index a2a8fc9..34c5251 100644 --- a/light.h +++ b/light.h @@ -18,11 +18,21 @@ public: void setOffImage(const QString& imagePath); void loadImage(); + void mousePressEvent(QGraphicsSceneMouseEvent *event) override; + void mouseMoveEvent(QGraphicsSceneMouseEvent *event) override; + void mouseReleaseEvent(QGraphicsSceneMouseEvent *event) override; + private: QString onImagePath_; // ON状态图片路径 QString offImagePath_; // OFF状态图片路径 QPixmap onPixmap_; // ON状态图片 QPixmap offPixmap_; // OFF状态图片 + bool resizing_ = false; // 是否正在调整大小 + QPointF resizeStartPos_; // 调整大小开始位置 + QSizeF originalSize_; // 调整前的原始大小 + QSizeF currentSize_ = QSizeF(50, 50); // 当前实际尺寸 + int resizeHandleSize_ = 8; // 调整手柄大小 + int resizeMargin_ = 5; // 调整边距 }; #endif // LIGHT_H