# coding=utf-8 # author: fardeas # from: https://blog.csdn.net/u010501845/article/details/124931326 import os import sys from datetime import datetime from qtpy import QtCore, QtGui from qtpy.QtWidgets import * from qtpy.QtCore import * from qtpy.QtGui import * class TextInputWidget(QTextEdit): '''在截图区域内的文本输入框''' def __init__(self, god=None): super().__init__(god) self.god = god # 设置背景透明 # self.setStyleSheet("QTextEdit{background-color: transparent;}") palette = self.palette() palette.setBrush(QtGui.QPalette.ColorRole.Base, self.god.color_transparent) self.setPalette(palette) self.setTextColor(self.god.toolbar.curColor()) self.setCurrentFont(self.god.toolbar.curFont()) self._doc = self.document() # QTextDocument self.textChanged.connect(self.adjustSizeByContent) self.adjustSizeByContent() # 初始化调整高度为一行 self.hide() def adjustSizeByContent(self, margin=30): '''限制宽度不超出截图区域，根据文本内容调整高度，不会出现滚动条''' self._doc.setTextWidth(self.viewport().width()) margins = self.contentsMargins() h = int(self._doc.size().height() + margins.top() + margins.bottom()) self.setFixedHeight(h) def beginNewInput(self, pos, endPointF): '''开始新的文本输入''' self._maxRect = self.god.screenArea.normalizeRectF(pos, endPointF) self.waitForInput() def waitForInput(self): self.setGeometry(self._maxRect.toRect()) # self.setGeometry(self._maxRect.adjusted(0, 0, -1, 0)) # 宽度-1 self.setFocus() self.show() def loadTextInputBy(self, action): '''载入修改旧的文本 action:(type, color, font, rectf, txt)''' self.setTextColor(action[1]) self.setCurrentFont(action[2]) self._maxRect = action[3] self.append(action[4]) self.god.isDrawing = True self.waitForInput() class LineWidthAction(QAction): '''画笔粗细选择器''' def __init__(self, text, parent, lineWidth): super().__init__(text, parent) self._lineWidth = lineWidth self.refresh(QtCore.Qt.GlobalColor.red) self.triggered.connect(self.onTriggered) self.setVisible(False) def refresh(self, color): painter = self.parent().god.screenArea._painter dotRadius = QPointF(self._lineWidth, self._lineWidth) centerPoint = self.parent().iconPixmapCenter() pixmap = self.parent().iconPixmapCopy() painter.begin(pixmap) painter.setPen(self.parent().god.pen_transparent) painter.setBrush(color) painter.drawEllipse(QRectF(centerPoint - dotRadius, centerPoint + dotRadius)) painter.end() self.setIcon(QIcon(pixmap)) def onTriggered(self): self.parent()._curLineWidth = self._lineWidth class FontAction(QAction): '''字体选择器''' def __init__(self, text, parent): super().__init__(text, parent) self.setIcon(QIcon(r"img/sys/font.png")) self._curFont = self.parent().god.font_textInput self.triggered.connect(self.onTriggered) self.setVisible(False) def onTriggered(self): font, ok = QFontDialog.getFont(self._curFont, self.parent(), caption='选择字体') if ok: self._curFont = font self.parent().god.textInputWg.setCurrentFont(font) class ColorAction(QAction): '''颜色选择器''' def __init__(self, text, parent): super().__init__(text, parent) self._curColor = QtCore.Qt.GlobalColor.red self._pixmap = QPixmap(32, 32) self.refresh(self._curColor) self.triggered.connect(self.onTriggered) def refresh(self, color): self._curColor = color self._pixmap.fill(color) self.setIcon(QIcon(self._pixmap)) self.parent()._at_line_small.refresh(color) self.parent()._at_line_normal.refresh(color) self.parent()._at_line_big.refresh(color) def onTriggered(self): col = QColorDialog.getColor(self._curColor, self.parent(), title='选择颜色') if col.isValid(): self.refresh(col) self.parent().god.textInputWg.setTextColor(col) class ScreenShotToolBar(QToolBar): '''截图区域工具条''' def __init__(self, god): super().__init__(god) self.god = god self.setToolButtonStyle(QtCore.Qt.ToolButtonStyle.ToolButtonTextUnderIcon) self.setStyleSheet("QToolBar {border-radius: 5px;padding: 3px;background-color: #eeeeef;}") self._style_normal = "QToolBar QToolButton{color: black;}" self._style_selected = "QToolBar QToolButton{color: #ff7300;border: 1px solid #BEDAF2;background-color: #D6E4F1}" # 与鼠标悬停样式一样 self._iconPixmap = QPixmap(32, 32) self._iconPixmap.fill(self.god.color_transparent) self._iconPixmapCenter = QPointF(self._iconPixmap.rect().center()) self._curLineWidth = 3 self._at_line_small = LineWidthAction('细', self, self._curLineWidth - 2) self._at_line_normal = LineWidthAction('中', self, self._curLineWidth) self._at_line_big = LineWidthAction('粗', self, self._curLineWidth + 2) self._at_font = FontAction('字体', self) self._at_color = ColorAction('颜色', self) # self._at_rectangle = QAction(QIcon(r"img/sys/rectangle.png"), '矩形', self, triggered=self.beforeDrawRectangle) # self._at_ellipse = QAction(QIcon(r"img/sys/ellipse.png"), '椭圆', self, triggered=self.beforeDrawEllipse) # self._at_graffiti = QAction(QIcon(r"img/sys/graffiti.png"), '涂鸦', self, triggered=self.beforeDrawGraffiti) # self._at_textInput = QAction(QIcon(r"img/sys/write.png"), '文字', self, triggered=self.beforeDrawText) # self.addAction(self._at_line_small) # self.addAction(self._at_line_normal) # self.addAction(self._at_line_big) # self.addAction(self._at_font) # self.addAction(self._at_color) # self.addSeparator() # self.addAction(self._at_rectangle) # self.addAction(self._at_ellipse) # self.addAction(self._at_graffiti) # self.addAction(self._at_textInput) # self.addAction(QAction(QIcon(r"img/sys/undo.png"), '撤销', self, triggered=self.undo)) # self.addSeparator() self.addAction(QAction(QApplication.style().standardIcon(40), '退出', self, triggered=self.god.rejectSlot)) self.addAction(QAction(QApplication.style().standardIcon(45), '接受', self, triggered=self.god.acceptSlot)) # self.addAction(QAction(QIcon(r"img/chat/download.png"), '保存', self, triggered=lambda: self.beforeSave('local'))) # self.addAction(QAction(QIcon(r"img/chat/sendImg.png"), '复制', self, triggered=lambda: self.beforeSave('clipboard'))) # self.actionTriggered.connect(self.onActionTriggered) def curLineWidth(self): return self._curLineWidth def curFont(self): return self._at_font._curFont def curColor(self): return self._at_color._curColor # return QColor(self._at_color._curColor.toRgb()) # 颜色的副本 def iconPixmapCopy(self): return self._iconPixmap.copy() def iconPixmapCenter(self): return self._iconPixmapCenter # def onActionTriggered(self, action): # '''突出显示已选中的画笔粗细、编辑模式''' # for at in [self._at_line_small, self._at_line_normal, self._at_line_big]: # if at._lineWidth == self._curLineWidth: # self.widgetForAction(at).setStyleSheet(self._style_selected) # else: # self.widgetForAction(at).setStyleSheet(self._style_normal) # if self.god.isDrawRectangle: # self.widgetForAction(self._at_rectangle).setStyleSheet(self._style_selected) # else: # self.widgetForAction(self._at_rectangle).setStyleSheet(self._style_normal) # if self.god.isDrawEllipse: # self.widgetForAction(self._at_ellipse).setStyleSheet(self._style_selected) # else: # self.widgetForAction(self._at_ellipse).setStyleSheet(self._style_normal) # if self.god.isDrawGraffiti: # self.widgetForAction(self._at_graffiti).setStyleSheet(self._style_selected) # else: # self.widgetForAction(self._at_graffiti).setStyleSheet(self._style_normal) # if self.god.isDrawText: # self.widgetForAction(self._at_textInput).setStyleSheet(self._style_selected) # else: # self.widgetForAction(self._at_textInput).setStyleSheet(self._style_normal) def setLineWidthActionVisible(self, flag): self._at_line_small.setVisible(flag) self._at_line_normal.setVisible(flag) self._at_line_big.setVisible(flag) def beforeDrawRectangle(self): self.god.clearEditFlags() self.god.isDrawRectangle = True self.setLineWidthActionVisible(True) self._at_font.setVisible(False) def beforeDrawEllipse(self): self.god.clearEditFlags() self.god.isDrawEllipse = True self.setLineWidthActionVisible(True) self._at_font.setVisible(False) def beforeDrawGraffiti(self): self.god.clearEditFlags() self.god.isDrawGraffiti = True self.setLineWidthActionVisible(True) self._at_font.setVisible(False) def beforeDrawText(self): self.god.clearEditFlags() self.god.isDrawText = True self.setLineWidthActionVisible(False) self._at_font.setVisible(True) def undo(self): '''撤销上次编辑行为''' if self.god.screenArea.undoEditAction(): self.god.update() def beforeSave(self, target): # 若正在编辑文本未保存，先完成编辑 if self.god.isDrawing and self.god.isDrawText: self.god.screenArea.saveTextInputAction() if target == 'local': self.god.save2Local() elif target == 'clipboard': self.god.save2Clipboard() def enterEvent(self, event): self.god.setCursor(QtCore.Qt.CursorShape.ArrowCursor) # 工具条上显示标准箭头cursor def leaveEvent(self, event): self.god.setCursor(QtCore.Qt.CursorShape.CrossCursor) # 十字无箭头 class ScreenArea(QtCore.QObject): '''屏幕区域（提供各种算法的核心类），划分为9个子区域： TopLeft，Top，TopRight Left，Center，Right BottomLeft，Bottom，BottomRight 其中Center根据start、end两个QPointF确定 ''' def __init__(self, god): super().__init__() self.god = god self._pt_start = QPointF() # 划定截图区域时鼠标左键按下的位置（topLeft） self._pt_end = QPointF() # 划定截图区域时鼠标左键松开的位置（bottomRight） self._rt_toolbar = QRectF() # 工具条的矩形 self._actions = [] # 在截图区域上的所有编辑行为（矩形、椭圆、涂鸦、文本输入等） self._pt_startEdit = QPointF() # 在截图区域上绘制矩形、椭圆时鼠标左键按下的位置（topLeft） self._pt_endEdit = QPointF() # 在截图区域上绘制矩形、椭圆时鼠标左键松开的位置（bottomRight） self._pointfs = [] # 涂鸦经过的所有点 self._painter = QPainter() # 独立于ScreenShotWidget之外的画家类 self._textOption = QtGui.QTextOption(QtCore.Qt.AlignmentFlag.AlignLeft | QtCore.Qt.AlignmentFlag.AlignTop) self._textOption.setWrapMode(QtGui.QTextOption.WrapMode.WrapAnywhere) # 文本在矩形内自动换行 # self._textOption.setWrapMode(QtGui.QTextOption.WrapMode.WrapAtWordBoundaryOrAnywhere) self.captureScreen() def captureScreen(self): '''抓取整个屏幕的截图''' # screen = QtGui.QGuiApplication.primaryScreen() self._screenPixmap = QApplication.primaryScreen().grabWindow(0) self._pixelRatio = self._screenPixmap.devicePixelRatio() # 设备像素比 self._rt_screen = self.screenLogicalRectF() self.remakeNightArea() def normalizeRectF(self, topLeftPoint, bottomRightPoint): '''根据起止点生成宽高非负数的QRectF，通常用于bottomRightPoint比topLeftPoint更左更上的情况 入参可以是QPoint或QPointF''' rectf = QRectF(topLeftPoint, bottomRightPoint) x = rectf.x() y = rectf.y() w = rectf.width() h = rectf.height() if w < 0: # bottomRightPoint在topLeftPoint左侧时，topLeftPoint往左移动 x = x + w w = -w if h < 0: # bottomRightPoint在topLeftPoint上侧时，topLeftPoint往上移动 y = y + h h = -h return QRectF(x, y, w, h) def physicalRectF(self, rectf): '''计算划定的截图区域的（缩放倍率1.0的）原始矩形（会变大） rectf：划定的截图区域的矩形。可为QRect或QRectF''' return QRectF(rectf.x() * self._pixelRatio, rectf.y() * self._pixelRatio, rectf.width() * self._pixelRatio, rectf.height() * self._pixelRatio) def logicalRectF(self, physicalRectF): '''根据原始矩形计算缩放后的矩形（会变小） physicalRectF：缩放倍率1.0的原始矩形。可为QRect或QRectF''' return QRectF(physicalRectF.x() / self._pixelRatio, physicalRectF.y() / self._pixelRatio, physicalRectF.width() / self._pixelRatio, physicalRectF.height() / self._pixelRatio) def physicalPixmap(self, rectf, editAction=False): '''根据指定区域获取其原始大小的（缩放倍率1.0的）QPixmap rectf：指定区域。可为QRect或QRectF editAction:是否带上编辑结果''' if editAction: canvasPixmap = self.screenPhysicalPixmapCopy() self._painter.begin(canvasPixmap) self.paintEachEditAction(self._painter, textBorder=False) self._painter.end() return canvasPixmap.copy(self.physicalRectF(rectf).toRect()) else: return self._screenPixmap.copy(self.physicalRectF(rectf).toRect()) def screenPhysicalRectF(self): return QRectF(self._screenPixmap.rect()) def screenLogicalRectF(self): return QRectF(QPointF(0, 0), self.screenLogicalSizeF()) # 即当前屏幕显示的大小 def screenPhysicalSizeF(self): return QSizeF(self._screenPixmap.size()) def screenLogicalSizeF(self): return QSizeF(self._screenPixmap.width() / self._pixelRatio, self._screenPixmap.height() / self._pixelRatio) def screenPhysicalPixmapCopy(self): return self._screenPixmap.copy() def screenLogicalPixmapCopy(self): return self._screenPixmap.scaled(self.screenLogicalSizeF().toSize()) def centerPhysicalRectF(self): return self.physicalRectF(self._rt_center) def centerLogicalRectF(self): '''根据屏幕上的start、end两个QPointF确定''' return self._rt_center def centerPhysicalPixmap(self, editAction=True): '''截图区域的QPixmap editAction:是否带上编辑结果''' return self.physicalPixmap(self._rt_center + QMarginsF(-1, -1, 1, 1), editAction=editAction) def centerTopMid(self): return self._pt_centerTopMid def centerBottomMid(self): return self._pt_centerBottomMid def centerLeftMid(self): return self._pt_centerLeftMid def centerRightMid(self): return self._pt_centerRightMid def setStartPoint(self, pointf, remake=False): self._pt_start = pointf if remake: self.remakeNightArea() def setEndPoint(self, pointf, remake=False): self._pt_end = pointf if remake: self.remakeNightArea() def setCenterArea(self, start, end): self._pt_start = start self._pt_end = end self.remakeNightArea() def remakeNightArea(self): '''重新划分九宫格区域。根据中央截图区域计算出来的其他8个区域、截图区域四个边框中点坐标等都是logical的''' self._rt_center = self.normalizeRectF(self._pt_start, self._pt_end) # 中央区域上下左右边框的中点，用于调整大小 self._pt_centerTopMid = (self._rt_center.topLeft() + self._rt_center.topRight()) / 2 self._pt_centerBottomMid = (self._rt_center.bottomLeft() + self._rt_center.bottomRight()) / 2 self._pt_centerLeftMid = (self._rt_center.topLeft() + self._rt_center.bottomLeft()) / 2 self._pt_centerRightMid = (self._rt_center.topRight() + self._rt_center.bottomRight()) / 2 # 以截图区域左上、上中、右上、左中、右中、左下、下中、右下为中心的正方形区域，用于调整大小 self._square_topLeft = self.squareAreaByCenter(self._rt_center.topLeft()) self._square_topRight = self.squareAreaByCenter(self._rt_center.topRight()) self._square_bottomLeft = self.squareAreaByCenter(self._rt_center.bottomLeft()) self._square_bottomRight = self.squareAreaByCenter(self._rt_center.bottomRight()) self._square_topMid = self.squareAreaByCenter(self._pt_centerTopMid) self._square_bottomMid = self.squareAreaByCenter(self._pt_centerBottomMid) self._square_leftMid = self.squareAreaByCenter(self._pt_centerLeftMid) self._square_rightMid = self.squareAreaByCenter(self._pt_centerRightMid) # 除中央截图区域外的8个区域 self._rt_topLeft = QRectF(self._rt_screen.topLeft(), self._rt_center.topLeft()) self._rt_top = QRectF(QPointF(self._rt_center.topLeft().x(), 0), self._rt_center.topRight()) self._rt_topRight = QRectF(QPointF(self._rt_center.topRight().x(), 0), QPointF(self._rt_screen.width(), self._rt_center.topRight().y())) self._rt_left = QRectF(QPointF(0, self._rt_center.topLeft().y()), self._rt_center.bottomLeft()) self._rt_right = QRectF(self._rt_center.topRight(), QPointF(self._rt_screen.width(), self._rt_center.bottomRight().y())) self._rt_bottomLeft = QRectF(QPointF(0, self._rt_center.bottomLeft().y()), QPointF(self._rt_center.bottomLeft().x(), self._rt_screen.height())) self._rt_bottom = QRectF(self._rt_center.bottomLeft(), QPointF(self._rt_center.bottomRight().x(), self._rt_screen.height())) self._rt_bottomRight = QRectF(self._rt_center.bottomRight(), self._rt_screen.bottomRight()) def squareAreaByCenter(self, pointf): '''以QPointF为中心的正方形QRectF''' rectf = QRectF(0, 0, 15, 15) rectf.moveCenter(pointf) return rectf def aroundAreaIn8Direction(self): '''中央区域周边的8个方向的区域（无交集）''' return [self._rt_topLeft, self._rt_top, self._rt_topRight, self._rt_left, self._rt_right, self._rt_bottomLeft, self._rt_bottom, self._rt_bottomRight] def aroundAreaIn4Direction(self): '''中央区域周边的4个方向的区域（有交集） 上区域(左上、上、右上)：0, 0, maxX, topRight.y 下区域(左下、下、右下)：0, bottomLeft.y, maxX, maxY-bottomLeft.y 左区域(左上、左、左下)：0, 0, bottomLeft.x, maxY 右区域(右上、右、右下)：topRight.x, 0, maxX - topRight.x, maxY''' screenSizeF = self.screenLogicalSizeF() pt_topRight = self._rt_center.topRight() pt_bottomLeft = self._rt_center.bottomLeft() return [QRectF(0, 0, screenSizeF.width(), pt_topRight.y()), QRectF(0, pt_bottomLeft.y(), screenSizeF.width(), screenSizeF.height() - pt_bottomLeft.y()), QRectF(0, 0, pt_bottomLeft.x(), screenSizeF.height()), QRectF(pt_topRight.x(), 0, screenSizeF.width() - pt_topRight.x(), screenSizeF.height())] def aroundAreaWithoutIntersection(self): '''中央区域周边的4个方向的区域（无交集） 上区域(左上、上、右上)：0, 0, maxX, topRight.y 下区域(左下、下、右下)：0, bottomLeft.y, maxX, maxY-bottomLeft.y 左区域(左)：0, topRight.y, bottomLeft.x-1, center.height 右区域(右)：topRight.x+1, topRight.y, maxX - topRight.x, center.height''' screenSizeF = self.screenLogicalSizeF() pt_topRight = self._rt_center.topRight() pt_bottomLeft = self._rt_center.bottomLeft() centerHeight = pt_bottomLeft.y() - pt_topRight.y() return [QRectF(0, 0, screenSizeF.width(), pt_topRight.y()), QRectF(0, pt_bottomLeft.y(), screenSizeF.width(), screenSizeF.height() - pt_bottomLeft.y()), QRectF(0, pt_topRight.y(), pt_bottomLeft.x() - 1, centerHeight), QRectF(pt_topRight.x() + 1, pt_topRight.y(), screenSizeF.width() - pt_topRight.x(), centerHeight)] def setBeginDragPoint(self, pointf): '''计算开始拖拽位置距离截图区域左上角的向量''' self._drag_vector = pointf - self._rt_center.topLeft() def getNewPosAfterDrag(self, pointf): '''计算拖拽后截图区域左上角的新位置''' return pointf - self._drag_vector def moveCenterAreaTo(self, pointf): '''限制拖拽不能超出屏幕范围''' self._rt_center.moveTo(self.getNewPosAfterDrag(pointf)) startPointF = self._rt_center.topLeft() if startPointF.x() < 0: self._rt_center.moveTo(0, startPointF.y()) startPointF = self._rt_center.topLeft() if startPointF.y() < 0: self._rt_center.moveTo(startPointF.x(), 0) screenSizeF = self.screenLogicalSizeF() endPointF = self._rt_center.bottomRight() if endPointF.x() > screenSizeF.width(): self._rt_center.moveBottomRight(QPointF(screenSizeF.width(), endPointF.y())) endPointF = self._rt_center.bottomRight() if endPointF.y() > screenSizeF.height(): self._rt_center.moveBottomRight(QPointF(endPointF.x(), screenSizeF.height())) self.setCenterArea(self._rt_center.topLeft(), self._rt_center.bottomRight()) def setBeginAdjustPoint(self, pointf): '''判断开始调整截图区域大小时鼠标左键在哪个区（不可能是中央区域），用于判断调整大小的意图方向''' self._mousePos = self.getMousePosBy(pointf) def getMousePosBy(self, pointf): if self._square_topLeft.contains(pointf): return 'TL' elif self._square_topMid.contains(pointf): return 'T' elif self._square_topRight.contains(pointf): return 'TR' elif self._square_leftMid.contains(pointf): return 'L' elif self._rt_center.contains(pointf): return 'CENTER' elif self._square_rightMid.contains(pointf): return 'R' elif self._square_bottomLeft.contains(pointf): return 'BL' elif self._square_bottomMid.contains(pointf): return 'B' elif self._square_bottomRight.contains(pointf): return 'BR' else: return 'ERROR' def adjustCenterAreaBy(self, pointf): '''根据开始调整截图区域大小时鼠标左键在哪个区（不可能是中央区域），判断调整大小的意图方向，判定新的开始、结束位置''' startPointF = self._rt_center.topLeft() endPointF = self._rt_center.bottomRight() if self._mousePos == 'TL': startPointF = pointf elif self._mousePos == 'T': startPointF = QPointF(startPointF.x(), pointf.y()) elif self._mousePos == 'TR': startPointF = QPointF(startPointF.x(), pointf.y()) endPointF = QPointF(pointf.x(), endPointF.y()) elif self._mousePos == 'L': startPointF = QPointF(pointf.x(), startPointF.y()) elif self._mousePos == 'R': endPointF = QPointF(pointf.x(), endPointF.y()) elif self._mousePos == 'BL': startPointF = QPointF(pointf.x(), startPointF.y()) endPointF = QPointF(endPointF.x(), pointf.y()) elif self._mousePos == 'B': endPointF = QPointF(endPointF.x(), pointf.y()) elif self._mousePos == 'BR': endPointF = pointf else: # 'ERROR' return newRectF = self.normalizeRectF(startPointF, endPointF) self.setCenterArea(newRectF.topLeft(), newRectF.bottomRight()) def getMouseShapeBy(self, pointf): '''根据鼠标位置返回对应的鼠标样式''' if self._rt_center.contains(pointf): if self.god.isDrawRectangle or self.god.isDrawEllipse: return QtCore.Qt.CursorShape.ArrowCursor elif self.god.isDrawGraffiti: return QtCore.Qt.CursorShape.PointingHandCursor # 超链接上的手势 elif self.god.isDrawText: return QtCore.Qt.CursorShape.IBeamCursor # 工字 else: return QtCore.Qt.CursorShape.SizeAllCursor # 十字有箭头 # return QtCore.Qt.CursorShape.OpenHandCursor # 打开的手，表示可拖拽 elif self._square_topLeft.contains(pointf) or self._square_bottomRight.contains(pointf): return QtCore.Qt.CursorShape.SizeFDiagCursor # ↖↘ elif self._square_topMid.contains(pointf) or self._square_bottomMid.contains(pointf): return QtCore.Qt.CursorShape.SizeVerCursor # ↑↓ elif self._square_topRight.contains(pointf) or self._square_bottomLeft.contains(pointf): return QtCore.Qt.CursorShape.SizeBDiagCursor # ↙↗ elif self._square_leftMid.contains(pointf) or self._square_rightMid.contains(pointf): return QtCore.Qt.CursorShape.SizeHorCursor # ←→ else: return QtCore.Qt.CursorShape.CrossCursor # 十字无箭头 def isMousePosInCenterRectF(self, pointf): return self._rt_center.contains(pointf) def paintMagnifyingGlassPixmap(self, pos, glassSize): '''绘制放大镜内的图像(含纵横十字线) pos:鼠标光标位置 glassSize:放大镜边框大小''' pixmapRect = QRect(0, 0, 20, 20) # 以鼠标光标为中心的正方形区域，最好是偶数 pixmapRect.moveCenter(pos) glassPixmap = self.physicalPixmap(pixmapRect) glassPixmap.setDevicePixelRatio(1.0) glassPixmap = glassPixmap.scaled(glassSize, glassSize, QtCore.Qt.AspectRatioMode.KeepAspectRatio) # 在放大后的QPixmap上画纵横十字线 self._painter.begin(glassPixmap) halfWidth = glassPixmap.width() / 2 halfHeight = glassPixmap.height() / 2 self._painter.setPen(self.god.pen_SolidLine_lightBlue) self._painter.drawLine(QPointF(0, halfHeight), QPointF(glassPixmap.width(), halfHeight)) self._painter.drawLine(QPointF(halfWidth, 0), QPointF(halfWidth, glassPixmap.height())) self._painter.end() return glassPixmap def paintEachEditAction(self, painter, textBorder=True): '''绘制所有已保存的编辑行为。编辑行为超出截图区域也无所谓，保存图像时只截取截图区域内 textBorder:是否绘制文本边框''' for action in self.getEditActions(): if action[0] == 'rectangle': # (type, color, lineWidth, startPoint, endPoint) self.paintRectangle(painter, action[1], action[2], action[3], action[4]) elif action[0] == 'ellipse': # (type, color, lineWidth, startPoint, endPoint) self.paintEllipse(painter, action[1], action[2], action[3], action[4]) elif action[0] == 'graffiti': # (type, color, lineWidth, points) self.paintGraffiti(painter, action[1], action[2], action[3]) elif action[0] == 'text': # (type, color, font, rectf, txt) self.paintTextInput(painter, action[1], action[2], action[3], action[4], textBorder=textBorder) def paintRectangle(self, painter, color, lineWidth, startPoint=None, endPoint=None): if not startPoint: startPoint = self._pt_startEdit if not endPoint: endPoint = self._pt_endEdit qrectf = self.normalizeRectF(startPoint, endPoint) if qrectf.isValid(): pen = QPen(color) pen.setWidth(lineWidth) painter.setPen(pen) painter.setBrush(self.god.color_transparent) painter.drawRect(qrectf) def paintEllipse(self, painter, color, lineWidth, startPoint=None, endPoint=None): if not startPoint: startPoint = self._pt_startEdit if not endPoint: endPoint = self._pt_endEdit qrectf = self.normalizeRectF(startPoint, endPoint) if qrectf.isValid(): pen = QPen(color) pen.setWidth(lineWidth) painter.setPen(pen) painter.setBrush(self.god.color_transparent) painter.drawEllipse(qrectf) def paintGraffiti(self, painter, color, lineWidth, pointfs=None): if not pointfs: pointfs = self.getGraffitiPointFs() pen = QPen(color) pen.setWidth(lineWidth) painter.setPen(pen) total = len(pointfs) if total == 0: return elif total == 1: painter.drawPoint(pointfs[0]) else: previousPoint = pointfs[0] for i in range(1, total): nextPoint = pointfs[i] painter.drawLine(previousPoint, nextPoint) previousPoint = nextPoint def paintTextInput(self, painter, color, font, rectf, txt, textBorder=True): painter.setPen(color) painter.setFont(font) painter.drawText(rectf, txt, self._textOption) if textBorder: painter.setPen(QtCore.Qt.PenStyle.DotLine) # 点线 painter.setBrush(self.god.color_transparent) painter.drawRect(rectf) def getEditActions(self): return self._actions.copy() def takeTextInputActionAt(self, pointf): '''根据鼠标位置查找已保存的文本输入结果，找到后取出''' for i in range(len(self._actions)): action = self._actions[i] if action[0] == 'text' and action[3].contains(pointf): return self._actions.pop(i) return None def undoEditAction(self): reply = False if self._actions: reply = self._actions.pop() if not self._actions: # 所有编辑行为都被撤销后退出编辑模式 self.god.exitEditMode() else: self.god.exitEditMode() return reply def clearEditActions(self): self._actions.clear() def setBeginEditPoint(self, pointf): '''在截图区域上绘制矩形、椭圆时鼠标左键按下的位置（topLeft）''' self._pt_startEdit = pointf self.god.isDrawing = True def setEndEditPoint(self, pointf): '''在截图区域上绘制矩形、椭圆时鼠标左键松开的位置（bottomRight）''' self._pt_endEdit = pointf def saveRectangleAction(self): rectf = self.normalizeRectF(self._pt_startEdit, self._pt_endEdit) self._actions.append(('rectangle', self.god.toolbar.curColor(), self.god.toolbar.curLineWidth(), rectf.topLeft(), rectf.bottomRight())) self._pt_startEdit = QPointF() self._pt_endEdit = QPointF() self.god.isDrawing = False def saveEllipseleAction(self): rectf = self.normalizeRectF(self._pt_startEdit, self._pt_endEdit) self._actions.append(('ellipse', self.god.toolbar.curColor(), self.god.toolbar.curLineWidth(), rectf.topLeft(), rectf.bottomRight())) self._pt_startEdit = QPointF() self._pt_endEdit = QPointF() self.god.isDrawing = False def saveGraffitiPointF(self, pointf, first=False): self._pointfs.append(pointf) if first: self.god.isDrawing = True def getGraffitiPointFs(self): return self._pointfs.copy() def saveGraffitiAction(self): if self._pointfs: self._actions.append(('graffiti', self.god.toolbar.curColor(), self.god.toolbar.curLineWidth(), self._pointfs.copy())) self._pointfs.clear() self.god.isDrawing = False def setBeginInputTextPoint(self, pointf): '''在截图区域上输入文字时鼠标左键按下的位置（topLeft）''' self.god.isDrawing = True self.god.textInputWg.beginNewInput(pointf, self._pt_end) def saveTextInputAction(self): txt = self.god.textInputWg.toPlainText() if txt: rectf = self.god.textInputWg._maxRect # 取最大矩形的topLeft rectf.setSize(QRectF(self.god.textInputWg.rect()).size()) # 取实际矩形的宽高 self._actions.append(('text', self.god.toolbar.curColor(), self.god.toolbar.curFont(), rectf, txt)) self.god.textInputWg.clear() self.god.textInputWg.hide() # 不管保存成功与否都取消编辑 self.god.isDrawing = False def saveNightAreaImg(self): '''将九宫格区域保存为本地图片，仅用于开发测试''' screenPixmap = self.screenPhysicalPixmapCopy() self._painter.begin(screenPixmap) self._painter.setPen(self.pen_SolidLine_lightBlue) self._painter.setFont(self.god.font_normal) self._painter.drawRect(self._rt_center) for area in self.aroundAreaIn8Direction(): self._painter.drawRect(area) for pointf in [self._rt_center.topLeft(), self._rt_center.topRight(), self._rt_center.bottomLeft(), self._rt_center.bottomRight(), self._pt_centerTopMid, self._pt_centerBottomMid, self._pt_centerLeftMid, self._pt_centerRightMid]: self._painter.drawText(pointf + QPointF(5, -5), '(%s, %s)' % (pointf.x(), pointf.y())) self._painter.end() screenPixmap.save('1.jpg', quality=100) self.centerPhysicalPixmap().save('2.jpg', quality=100) class ScreenShotWidget(QWidget): fileType_all = '所有文件 (*);;Excel文件 (*.xls *.xlsx);;图片文件 (*.jpg *.jpeg *.gif *.png *.bmp)' fileType_img = '图片文件 (*.jpg *.jpeg *.gif *.png *.bmp)' dir_lastAccess = os.getcwd() # 最后访问目录 def __init__(self): super().__init__() self.setMouseTracking(True) self.setWindowFlags(QtCore.Qt.WindowType.FramelessWindowHint | QtCore.Qt.WindowType.WindowStaysOnTopHint) self.initPainterTool() self.initFunctionalFlag() self.screenArea = ScreenArea(self) self.toolbar = ScreenShotToolBar(self) self.textInputWg = TextInputWidget(self) self.captureImage = None # 设置 screenPixmap 为窗口背景 # palette = QtGui.QPalette() # palette.setBrush(QtGui.QPalette.ColorRole.Window, QtGui.QBrush(self.screenArea.screenPhysicalPixmapCopy())) # self.setPalette(palette) def rejectSlot(self): self.captureImage = None self.close() def acceptSlot(self): self.captureImage = self.screenArea.centerPhysicalPixmap().toImage() self.close() def start(self): self.screenArea.captureScreen() self.setGeometry(self.screenArea.screenPhysicalRectF().toRect()) self.clearScreenShotArea() self.showFullScreen() def initPainterTool(self): self.painter = QPainter() self.color_transparent = QtCore.Qt.GlobalColor.transparent self.color_black = QColor(0, 0, 0, 64) # 黑色背景 self.color_lightBlue = QColor(30, 120, 255) # 浅蓝色。深蓝色QtCore.Qt.GlobalColor.blue self.font_normal = QtGui.QFont('Times New Roman', 11, QtGui.QFont.Weight.Normal) self.font_textInput = QtGui.QFont('微软雅黑', 16, QtGui.QFont.Weight.Normal) # 工具条文字工具默认字体 self.pen_transparent = QPen(QtCore.Qt.PenStyle.NoPen) # 没有笔迹，画不出线条 self.pen_white = QPen(QtCore.Qt.GlobalColor.white) self.pen_SolidLine_lightBlue = QPen(self.color_lightBlue) # 实线，浅蓝色 self.pen_SolidLine_lightBlue.setStyle(QtCore.Qt.PenStyle.DashLine) # 实线SolidLine，虚线DashLine，点线DotLine self.pen_SolidLine_lightBlue.setWidthF(0) # 0表示线宽为1 self.pen_DashLine_lightBlue = QPen(self.color_lightBlue) # 虚线，浅蓝色 self.pen_DashLine_lightBlue.setStyle(QtCore.Qt.PenStyle.DashLine) def initFunctionalFlag(self): self.hasScreenShot = False # 是否已通过拖动鼠标左键划定截图区域 self.isCapturing = False # 正在拖动鼠标左键选定截图区域时 self.isMoving = False # 在截图区域内拖动时 self.isAdjusting = False # 在截图区域的边框按住鼠标左键调整大小时 self.isDrawing = False # 是否已在截图区域内开始绘制 self.isDrawRectangle = False # 正在截图区域内画矩形 self.isDrawEllipse = False # 正在截图区域内画椭圆 self.isDrawGraffiti = False # 正在截图区域内进行涂鸦 self.isDrawText = False # 正在截图区域内画文字 self.setCursor(QtCore.Qt.CursorShape.CrossCursor) # 设置鼠标样式 十字 def paintEvent(self, event): centerRectF = self.screenArea.centerLogicalRectF() screenSizeF = self.screenArea.screenLogicalSizeF() canvasPixmap = self.screenArea.screenPhysicalPixmapCopy() # canvasPixmap = QPixmap(screenSizeF.toSize()) # canvasPixmap.fill(self.color_transparent) # 在屏幕截图的副本上绘制已选定的截图区域 self.painter.begin(canvasPixmap) if self.hasScreenShot: self.paintCenterArea(centerRectF) # 绘制中央截图区域 self.paintMaskLayer(screenSizeF, fullScreen=False) # 绘制截图区域的周边区域遮罩层 else: self.paintMaskLayer(screenSizeF) self.paintMagnifyingGlass(screenSizeF) # 在鼠标光标右下角显示放大镜 self.paintToolbar(centerRectF, screenSizeF) # 在截图区域右下角显示工具条 self.paintEditActions() # 在截图区域绘制编辑行为结果 self.painter.end() # 把画好的绘制结果显示到窗口上 self.painter.begin(self) self.painter.drawPixmap(0, 0, canvasPixmap) # 从坐标(0, 0)开始绘制 self.painter.end() def paintCenterArea(self, centerRectF): '''绘制已选定的截图区域''' self.painter.setRenderHint(QPainter.RenderHint.Antialiasing, True) # 反走样 # 1.绘制矩形线框 self.painter.setPen(self.pen_DashLine_lightBlue) self.painter.drawRect(centerRectF) # 2.绘制矩形线框4个端点和4条边框的中间点 if centerRectF.width() >= 100 and centerRectF.height() >= 100: points = [ # 点坐标 centerRectF.topLeft(), centerRectF.topRight(), centerRectF.bottomLeft(), centerRectF.bottomRight(), self.screenArea.centerLeftMid(), self.screenArea.centerRightMid(), self.screenArea.centerTopMid(), self.screenArea.centerBottomMid() ] blueDotRadius = QPointF(2, 2) # 椭圆蓝点 self.painter.setBrush(self.color_lightBlue) for point in points: self.painter.drawEllipse(QRectF(point - blueDotRadius, point + blueDotRadius)) # 3.在截图区域左上角显示截图区域宽高 if centerRectF.topLeft().y() > 20: labelPos = centerRectF.topLeft() + QPointF(5, -5) else: # 拖拽截图区域到贴近屏幕上边缘时“宽x高”移动到截图区域左上角的下侧 labelPos = centerRectF.topLeft() + QPointF(5, 15) centerPhysicalRect = self.screenArea.centerPhysicalRectF().toRect() self.painter.setPen(self.pen_white) self.painter.setFont(self.font_normal) self.painter.drawText(labelPos, '%s x %s' % (centerPhysicalRect.width(), centerPhysicalRect.height())) # 4.在屏幕左上角预览截图结果 # self.painter.drawPixmap(0, 0, self.screenArea.centerPhysicalPixmap()) # 从坐标(0, 0)开始绘制 def paintMaskLayer(self, screenSizeF, fullScreen=True): if fullScreen: # 全屏遮罩层 maskPixmap = QPixmap(screenSizeF.toSize()) maskPixmap.fill(self.color_black) self.painter.drawPixmap(0, 0, maskPixmap) else: # 绘制截图区域的周边区域遮罩层，以凸显截图区域 # 方法一：截图区域以外的8个方向区域 # for area in self.screenArea.aroundAreaIn8Direction(): # area = area.normalized() # maskPixmap = QPixmap(area.size().toSize()) # 由于float转int的精度问题，可能会存在黑线条缝隙 # maskPixmap.fill(self.color_black) # self.painter.drawPixmap(area.topLeft(), maskPixmap) # 方法二：截图区域以外的上下左右区域（有交集，交集部分颜色加深，有明显的纵横效果） # for area in self.screenArea.aroundAreaIn4Direction(): # maskPixmap = QPixmap(area.size().toSize()) # maskPixmap.fill(self.color_black) # self.painter.drawPixmap(area.topLeft(), maskPixmap) # 方法三：截图区域以外的上下左右区域（无交集） for area in self.screenArea.aroundAreaWithoutIntersection(): maskPixmap = QPixmap(area.size().toSize()) maskPixmap.fill(self.color_black) self.painter.drawPixmap(area.topLeft(), maskPixmap) def paintMagnifyingGlass(self, screenSizeF, glassSize=150, offset=30, labelHeight=30): '''未划定截图区域模式时、正在划定截取区域时、调整截取区域大小时在鼠标光标右下角显示放大镜 glassSize:放大镜正方形边长 offset:放大镜任意一个端点距离鼠标光标位置的最近距离 labelHeight:pos和rgb两行文字的高度''' if self.hasScreenShot and (not self.isCapturing) and (not self.isAdjusting): return pos = QtGui.QCursor.pos() glassPixmap = self.screenArea.paintMagnifyingGlassPixmap(pos, glassSize) # 画好纵横十字线后的放大镜内QPixmap # 限制放大镜显示不超出屏幕外 glassRect = glassPixmap.rect() if (pos.x() + glassSize + offset) < screenSizeF.width(): if (pos.y() + offset + glassSize + labelHeight) < screenSizeF.height(): glassRect.moveTo(pos + QPoint(offset, offset)) else: glassRect.moveBottomLeft(pos + QPoint(offset, -offset)) else: if (pos.y() + offset + glassSize + labelHeight) < screenSizeF.height(): glassRect.moveTopRight(pos + QPoint(-offset, offset)) else: glassRect.moveBottomRight(pos + QPoint(-offset, -offset)) self.painter.drawPixmap(glassRect.topLeft(), glassPixmap) # 显示pos:(x, y)、rgb:(255,255,255) qrgb = QtGui.QRgba64.fromArgb32(glassPixmap.toImage().pixel(glassPixmap.rect().center())) labelRectF = QRectF(glassRect.bottomLeft().x(), glassRect.bottomLeft().y(), glassSize, labelHeight) self.painter.setPen(self.pen_transparent) self.painter.setBrush(self.color_black) # 黑底 self.painter.drawRect(labelRectF) self.painter.setPen(self.pen_white) self.painter.setFont(self.font_normal) self.painter.drawText(labelRectF, QtCore.Qt.AlignmentFlag.AlignLeft | QtCore.Qt.AlignmentFlag.AlignVCenter, 'pos:(%s, %s)\nrgb:(%s, %s, %s)' % (pos.x(), pos.y(), qrgb.red8(), qrgb.green8(), qrgb.blue8())) def paintToolbar(self, centerRectF, screenSizeF): '''在截图区域右下角显示工具条''' if self.hasScreenShot: if self.isCapturing or self.isAdjusting: self.toolbar.hide() # 正在划定截取区域时、调整截图区域大小时不显示工具条 else: self.toolbar.adjustSize() toolbarRectF = QRectF(self.toolbar.rect()) # 工具条位置优先顺序：右下角下侧，右上角上侧，右下角上侧 if (screenSizeF.height() - centerRectF.bottomRight().y()) > toolbarRectF.height(): toolbarRectF.moveTopRight(centerRectF.bottomRight() + QPointF(-5, 5)) elif centerRectF.topRight().y() > toolbarRectF.height(): toolbarRectF.moveBottomRight(centerRectF.topRight() + QPointF(-5, -5)) else: toolbarRectF.moveBottomRight(centerRectF.bottomRight() + QPointF(-5, -5)) # 限制工具条的x坐标不为负数，不能移出屏幕外 if toolbarRectF.x() < 0: pos = toolbarRectF.topLeft() pos.setX(centerRectF.x() + 5) toolbarRectF.moveTo(pos) self.toolbar.move(toolbarRectF.topLeft().toPoint()) self.toolbar.show() else: self.toolbar.hide() def paintEditActions(self): '''在截图区域绘制编辑行为结果。编辑行为超出截图区域也无所谓，保存图像时只截取截图区域内''' # 1.绘制正在拖拽编辑中的矩形、椭圆、涂鸦 if self.isDrawRectangle: self.screenArea.paintRectangle(self.painter, self.toolbar.curColor(), self.toolbar.curLineWidth()) elif self.isDrawEllipse: self.screenArea.paintEllipse(self.painter, self.toolbar.curColor(), self.toolbar.curLineWidth()) elif self.isDrawGraffiti: self.screenArea.paintGraffiti(self.painter, self.toolbar.curColor(), self.toolbar.curLineWidth()) # 2.绘制所有已保存的编辑行为 self.screenArea.paintEachEditAction(self.painter) def clearEditFlags(self): self.isDrawing = False self.isDrawRectangle = False self.isDrawEllipse = False self.isDrawGraffiti = False self.isDrawText = False def exitEditMode(self): '''退出编辑模式''' self.clearEditFlags() # self.toolbar.onActionTriggered(None) # 清空工具条工具按钮选中状态 self.textInputWg.hide() def clearScreenShotArea(self): '''清空已划定的截取区域''' self.screenArea.clearEditActions() # 清除已保存的编辑行为 self.exitEditMode() self.hasScreenShot = False self.isCapturing = False pos = QPointF() self.screenArea.setCenterArea(pos, pos) self.update() self.setCursor(QtCore.Qt.CursorShape.CrossCursor) # 设置鼠标样式 十字 def mousePressEvent(self, event): if event.button() == QtCore.Qt.MouseButton.LeftButton: pos = event.pos() if self.hasScreenShot: if self.isDrawRectangle or self.isDrawEllipse: self.screenArea.setBeginEditPoint(pos) elif self.isDrawGraffiti: # 保存涂鸦经过的每一个点 self.screenArea.saveGraffitiPointF(pos, first=True) elif self.isDrawText: if self.isDrawing: if QRectF(self.textInputWg.rect()).contains(pos): pass # 在输入框内调整光标位置，忽略 else: # 鼠标点到输入框之外，完成编辑 self.screenArea.saveTextInputAction() else: # 未开始编辑时（暂不支持文本拖拽） action = self.screenArea.takeTextInputActionAt(pos) if action: # 鼠标点到输入框之内，修改旧的文本输入 self.textInputWg.loadTextInputBy(action) else: # 鼠标点到输入框之外，开始新的文本输入 self.screenArea.setBeginInputTextPoint(pos) elif self.screenArea.isMousePosInCenterRectF(pos): self.isMoving = True # 进入拖拽移动模式 self.screenArea.setBeginDragPoint(pos) else: self.isAdjusting = True # 进入调整大小模式 self.screenArea.setBeginAdjustPoint(pos) else: self.screenArea.setCenterArea(pos, pos) self.isCapturing = True # 进入划定截图区域模式 if event.button() == QtCore.Qt.MouseButton.RightButton: if self.hasScreenShot or self.isCapturing: # 清空已划定的的截图区域 self.clearScreenShotArea() else: self.close() def mouseReleaseEvent(self, event): if event.button() == QtCore.Qt.MouseButton.LeftButton: if self.isDrawRectangle: self.screenArea.saveRectangleAction() elif self.isDrawEllipse: self.screenArea.saveEllipseleAction() elif self.isDrawGraffiti: self.screenArea.saveGraffitiAction() self.isCapturing = False self.isMoving = False self.isAdjusting = False self.toolbar.show() def mouseMoveEvent(self, event): pos = event.pos() if self.isDrawing: if self.isDrawRectangle or self.isDrawEllipse: self.screenArea.setEndEditPoint(pos) elif self.isDrawGraffiti: self.screenArea.saveGraffitiPointF(pos) elif self.isCapturing: self.hasScreenShot = True self.screenArea.setEndPoint(pos, remake=True) elif self.isMoving: self.screenArea.moveCenterAreaTo(pos) elif self.isAdjusting: self.screenArea.adjustCenterAreaBy(pos) self.update() if self.hasScreenShot: self.setCursor(self.screenArea.getMouseShapeBy(pos)) else: self.setCursor(QtCore.Qt.CursorShape.CrossCursor) # 设置鼠标样式 十字 def mouseDoubleClickEvent(self, event): if event.button() == QtCore.Qt.MouseButton.LeftButton: if self.screenArea.isMousePosInCenterRectF(event.pos()): self.save2Clipboard() self.close() def keyPressEvent(self, QKeyEvent): if QKeyEvent.key() == QtCore.Qt.Key.Key_Escape: self.close() if QKeyEvent.key() in (QtCore.Qt.Key.Key_Return, QtCore.Qt.Key.Key_Enter): # 大键盘、小键盘回车 self.save2Clipboard() self.close() def save2Clipboard(self): '''将截图区域复制到剪贴板''' if self.hasScreenShot: mimData = QtCore.QMimeData() mimData.setImageData(self.screenArea.centerPhysicalPixmap().toImage()) QApplication.clipboard().setMimeData(mimData) # self.screenArea.saveNightAreaImg() self.close() def save2Local(self): fileType = self.fileType_img filePath, fileFormat = self.sys_selectSaveFilePath(self, fileType=fileType) if filePath: self.screenArea.centerPhysicalPixmap().save(filePath, quality=100) self.close() def sys_getCurTime(self, fmt='%Y-%m-%d %H:%M:%S'): '''获取字符串格式的当前时间''' # return QtCore.QDateTime.currentDateTime().toString('yyyy-MM-dd hh:mm:ss') return datetime.now().strftime(fmt) def sys_selectSaveFilePath(self, widget, title='选择文件保存路径', saveFileDir=None, saveFileName='', defaultFileFmt='%Y%m%d%H%M%S', fileType=None): '''选择文件保存路径 title:选择窗口标题 saveFileDir:指定保存目录 saveFileName:默认保存文件名 defaultFileFmt:不指定saveFileName时，自动以此格式的时间字符串命名文件 fileType:可以选择的文件类型 return:(所选的文件保存路径, 文件的类型) ''' options = QFileDialog.Option.ReadOnly if saveFileName == '': saveFileName = self.sys_getCurTime(defaultFileFmt) if not saveFileDir: saveFileDir = self.dir_lastAccess saveFilePath = os.path.join(saveFileDir, saveFileName) if not fileType: fileType = self.fileType_all filePath, fileFormat = QFileDialog.getSaveFileName(widget, title, saveFilePath, fileType, options=options) if filePath: self.dir_lastAccess = os.path.dirname(filePath) return (filePath, fileFormat)