29.QT主窗口加widget
运行效果
- widget布局showwidget.h
1 #ifndef SHOWWIDGET_H 2 #define SHOWWIDGET_H 3 4 #include <QWidget> 5 #include <QLabel> 6 #include <QTextEdit> 7 #include <QImage> 8 9 class ShowWidget : public QWidget 10 { 11 Q_OBJECT 12 public: 13 explicit ShowWidget(QWidget *parent = 0); 14 //图片 15 QImage img; 16 //标签 17 QLabel *imageLabel; 18 //编辑框 19 QTextEdit *text; 20 signals: 21 22 public slots: 23 24 }; 25 26 #endif // SHOWWIDGET_H
- showwidget.cpp
1 #include "showwidget.h" 2 #include <QHBoxLayout> 3 ShowWidget::ShowWidget(QWidget *parent) : 4 QWidget(parent) 5 { 6 imageLabel =new QLabel; 7 imageLabel->setScaledContents(true); 8 9 text =new QTextEdit; 10 11 //创建水平布局 12 QHBoxLayout *mainLayout =new QHBoxLayout(this); 13 mainLayout->addWidget(imageLabel); 14 mainLayout->addWidget(text); 15 }
- 主窗口创建(工具栏,菜单项) imgprocessor.h
1 #ifndef IMGPROCESSOR_H 2 #define IMGPROCESSOR_H 3 4 #include <QMainWindow> 5 #include <QImage> 6 #include <QLabel> 7 #include <QMenu> 8 #include <QMenuBar> 9 #include <QAction> 10 #include <QComboBox> 11 #include <QSpinBox> 12 #include <QToolBar> 13 #include <QFontComboBox> 14 #include <QToolButton> 15 #include <QTextCharFormat> 16 #include "showwidget.h" 17 18 class ImgProcessor : public QMainWindow 19 { 20 Q_OBJECT 21 22 public: 23 ImgProcessor(QWidget *parent = 0); 24 ~ImgProcessor(); 25 26 void createActions(); //创建动作 27 void createMenus(); //创建菜单 28 void createToolBars(); //创建工具栏 29 30 void loadFile(QString filename); 31 void mergeFormat(QTextCharFormat); 32 33 private: 34 //创建工具栏动作 35 QMenu *fileMenu; //文件菜单栏 36 QMenu *zoomMenu; //编辑菜单栏 37 QMenu *rotateMenu; //选择菜单栏 38 QMenu *mirrorMenu; //镜像菜单栏 39 40 QImage img; //图片资源 41 QString fileName; //文件名 42 ShowWidget *showWidget; //显示窗口 43 44 QAction *openFileAction; //打开文件 45 QAction *NewFileAction; //新建文件 46 QAction *PrintTextAction; //打印文本 47 QAction *PrintImageAction; //打印图片 48 QAction *exitAction; //退出 49 50 QAction *copyAction; //复制 51 QAction *cutAction; //剪切 52 QAction *pasteAction; //粘贴 53 QAction *aboutAction; //关于 54 QAction *zoomInAction; //放大 55 QAction *zoomOutAction; //缩小 56 57 QAction *rotate90Action; //旋转90度 58 QAction *rotate180Action; //旋转180度 59 QAction *rotate270Action; //旋转270度 60 61 QAction *mirrorVerticalAction; //纵向镜像 62 QAction *mirrorHorizontalAction; //横向镜像 63 64 QAction *undoAction; 65 QAction *redoAction; 66 67 QToolBar *fileTool; //文件工具栏 68 QToolBar *zoomTool; //复制粘贴工具栏 69 QToolBar *rotateTool; //放大缩小工具栏 70 QToolBar *mirrorTool; //旋转工具栏 71 72 QToolBar *doToolBar; //撤回工具栏 73 74 QLabel *fontLabel1; //字体设置项 75 QFontComboBox *fontComboBox; 76 QLabel *fontLabel2; //字号设置项 77 QComboBox *sizeComboBox; 78 QToolButton *boldBtn; //加粗 79 QToolButton *italicBtn; //倾斜 80 QToolButton *underlineBtn; //下划线 81 QToolButton *colorBtn; //颜色 82 83 QToolBar *fontToolBar; //字体工具栏 84 85 QLabel *listLabel; //排序设置项 86 QComboBox *listComboBox; 87 QActionGroup *actGrp; //对齐方式设置 88 QAction *leftAction; //左对齐 89 QAction *rightAction; //右对齐 90 QAction *centerAction; //中间对齐 91 QAction *justifyAction; //两端对齐 92 93 QToolBar *listToolBar; //排序工具栏 94 95 protected slots: 96 //显示文件 97 void ShowNewFile(); 98 //打开文件 99 void ShowOpenFile(); 100 //显示文本 101 void ShowPrintText(); 102 //显示图片 103 void ShowPrintImage(); 104 void ShowZoomIn(); 105 void ShowZoomOut(); 106 //旋转九十度 107 void ShowRotate90(); 108 //旋转180度 109 void ShowRotate180(); 110 //旋转270度 111 void ShowRotate270(); 112 //纵向镜像 113 void ShowMirrorVertical(); 114 //横向镜像 115 void ShowMirrorHorizontal(); 116 //设置字体框 117 void ShowFontComboBox(QString comboStr); 118 //设置大小框 119 void ShowSizeSpinBox(QString spinValue); 120 //设置字体加粗 121 void ShowBoldBtn(); 122 //设置倾斜 123 void ShowItalicBtn(); 124 //设置下划线 125 void ShowUnderlineBtn(); 126 //设置颜色框 127 void ShowColorBtn(); 128 void ShowCurrentFormatChanged(const QTextCharFormat &fmt); 129 130 void ShowList(int); 131 void ShowAlignment(QAction *act); 132 void ShowCursorPositionChanged(); 133 }; 134 135 #endif // IMGPROCESSOR_H
- imgprocessor.cpp
1 #include "imgprocessor.h" 2 #include <QFileDialog> 3 #include <QFile> 4 #include <QTextStream> 5 #include <QtPrintSupport/QPrintDialog> 6 #include <QtPrintSupport/QPrinter> 7 #include <QColorDialog> 8 #include <QColor> 9 #include <QTextList> 10 #include <qpainter.h> 11 12 //构造初始化 13 ImgProcessor::ImgProcessor(QWidget *parent) 14 : QMainWindow(parent) 15 { 16 //设置标题 17 setWindowTitle(tr("Easy Word")); 18 19 //创建显示 20 showWidget =new ShowWidget(this); 21 //设置中心控件为showWidget 22 setCentralWidget(showWidget); 23 24 //在工具栏上嵌入控件 25 //设置字体 26 fontLabel1 =new QLabel(tr("字体:")); 27 fontComboBox =new QFontComboBox; 28 fontComboBox->setFontFilters(QFontComboBox::ScalableFonts); 29 30 //设置字号 31 fontLabel2 =new QLabel(tr("字号:")); 32 sizeComboBox =new QComboBox; 33 QFontDatabase db; 34 foreach(int size,db.standardSizes()) 35 sizeComboBox->addItem(QString::number(size)); 36 37 //设置加粗按钮 38 boldBtn =new QToolButton; 39 //设置图片 40 boldBtn->setIcon(QIcon("bold.png")); 41 //设置可以选中 42 boldBtn->setCheckable(true); 43 44 //设置倾斜 45 italicBtn =new QToolButton; 46 italicBtn->setIcon(QIcon("italic.png")); 47 italicBtn->setCheckable(true); 48 49 //设置下划线 50 underlineBtn =new QToolButton; 51 underlineBtn->setIcon(QIcon("underline.png")); 52 underlineBtn->setCheckable(true); 53 54 //设置颜色 55 colorBtn =new QToolButton; 56 colorBtn->setIcon(QIcon("color.png")); 57 colorBtn->setCheckable(true); 58 59 //排序方式 60 listLabel =new QLabel(tr("排序")); 61 listComboBox =new QComboBox; 62 listComboBox->addItem("Standard"); 63 listComboBox->addItem("QTextListFormat::ListDisc"); 64 listComboBox->addItem("QTextListFormat::ListCircle"); 65 listComboBox->addItem("QTextListFormat::ListSquare"); 66 listComboBox->addItem("QTextListFormat::ListDecimal"); 67 listComboBox->addItem("QTextListFormat::ListLowerAlpha"); 68 listComboBox->addItem("QTextListFormat::ListUpperAlpha"); 69 listComboBox->addItem("QTextListFormat::ListLowerRoman"); 70 listComboBox->addItem("QTextListFormat::ListUpperRoman"); 71 72 //创建Action 73 createActions(); 74 //创建菜单栏 75 createMenus(); 76 //创建工具栏 77 createToolBars(); 78 79 //载入图片 80 if(img.load("image.png")) 81 { 82 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 83 } 84 85 //字体框连接到函数 86 connect(fontComboBox,SIGNAL(activated(QString)),this,SLOT(ShowFontComboBox(QString))); 87 //字体大小框连接到函数 88 connect(sizeComboBox,SIGNAL(activated(QString)),this,SLOT(ShowSizeSpinBox(QString))); 89 //加粗连接到函数 90 connect(boldBtn,SIGNAL(clicked()),this,SLOT(ShowBoldBtn())); 91 //斜体连接到函数 92 connect(italicBtn,SIGNAL(clicked()),this,SLOT(ShowItalicBtn())); 93 //下划线连接到函数 94 connect(underlineBtn,SIGNAL(clicked()),this,SLOT(ShowUnderlineBtn())); 95 //颜色按钮连接到函数 96 connect(colorBtn,SIGNAL(clicked()),this,SLOT(ShowColorBtn())); 97 //文本字体变化连接到函数 98 connect(showWidget->text,SIGNAL(currentCharFormatChanged(QtextCharFormat&)),this,SLOT(ShowCurrentFormatChanged(QTextCharFormat&))); 99 100 //排序方式连接到函数 101 connect(listComboBox,SIGNAL(activated(int)),this,SLOT(ShowList(int))); 102 103 connect(showWidget->text->document(),SIGNAL(undoAvailable(bool)),redoAction,SLOT(setEnabled(bool))); 104 connect(showWidget->text->document(),SIGNAL(redoAvailable(bool)),redoAction,SLOT(setEnabled(bool))); 105 //文本位置的鼠标变化连接到函数 106 connect(showWidget->text,SIGNAL(cursorPositionChanged()),this,SLOT(ShowCursorPositionChanged())); 107 } 108 109 ImgProcessor::~ImgProcessor() 110 { 111 112 } 113 114 //创建工具栏的动作 115 void ImgProcessor::createActions() 116 { 117 //"打开"动作 118 openFileAction =new QAction(QIcon("open.png"),tr("打开"),this); 119 //设置快捷键 120 openFileAction->setShortcut(tr("Ctrl+O")); 121 //设置提示 122 openFileAction->setStatusTip(tr("打开一个文件")); 123 //打开选项连接到函数 124 connect(openFileAction,SIGNAL(triggered()),this,SLOT(ShowOpenFile())); 125 126 //"新建"动作 127 NewFileAction =new QAction(QIcon("new.png"),tr("新建"),this); 128 NewFileAction->setShortcut(tr("Ctrl+N")); 129 NewFileAction->setStatusTip(tr("新建一个文件")); 130 connect(NewFileAction,SIGNAL(triggered()),this,SLOT(ShowNewFile())); 131 132 //"退出"动作 133 exitAction =new QAction(tr("退出"),this); 134 exitAction->setShortcut(tr("Ctrl+Q")); 135 exitAction->setStatusTip(tr("退出程序")); 136 connect(exitAction,SIGNAL(triggered()),this,SLOT(close())); 137 138 //"复制"动作 139 copyAction =new QAction(QIcon("copy.png"),tr("复制"),this); 140 copyAction->setShortcut(tr("Ctrl+C")); 141 copyAction->setStatusTip(tr("复制文件")); 142 connect(copyAction,SIGNAL(triggered()),showWidget->text,SLOT(copy())); 143 144 //"剪切"动作 145 cutAction =new QAction(QIcon("cut.png"),tr("剪切"),this); 146 cutAction->setShortcut(tr("Ctrl+X")); 147 cutAction->setStatusTip(tr("剪切文件")); 148 connect(cutAction,SIGNAL(triggered()),showWidget->text,SLOT(cut())); 149 150 //"粘贴"动作 151 pasteAction =new QAction(QIcon("paste.png"),tr("粘贴"),this); 152 pasteAction->setShortcut(tr("Ctrl+V")); 153 pasteAction->setStatusTip(tr("粘贴文件")); 154 connect(pasteAction,SIGNAL(triggered()),showWidget->text,SLOT(paste())); 155 156 //"关于"动作 157 aboutAction =new QAction(tr("关于"),this); 158 connect(aboutAction,SIGNAL(triggered()),this,SLOT(QApplication::aboutQt())); 159 160 //"打印文本"动作 161 PrintTextAction =new QAction(QIcon("printText.png"),tr("打印文本"), this); 162 PrintTextAction->setStatusTip(tr("打印一个文本")); 163 connect(PrintTextAction,SIGNAL(triggered()),this,SLOT(ShowPrintText())); 164 165 //"打印图像"动作 166 PrintImageAction =new QAction(QIcon("printImage.png"),tr("打印图像"), this); 167 PrintImageAction->setStatusTip(tr("打印一幅图像")); 168 connect(PrintImageAction,SIGNAL(triggered()),this,SLOT(ShowPrintImage())); 169 170 //"放大"动作 171 zoomInAction =new QAction(QIcon("zoomin.png"),tr("放大"),this); 172 zoomInAction->setStatusTip(tr("放大一张图片")); 173 connect(zoomInAction,SIGNAL(triggered()),this,SLOT(ShowZoomIn())); 174 175 //"缩小"动作 176 zoomOutAction =new QAction(QIcon("zoomout.png"),tr("缩小"),this); 177 zoomOutAction->setStatusTip(tr("缩小一张图片")); 178 connect(zoomOutAction,SIGNAL(triggered()),this,SLOT(ShowZoomOut())); 179 180 //实现图像旋转的动作（Action） 181 //旋转90° 182 rotate90Action =new QAction(QIcon("rotate90.png"),tr("旋转90°"),this); 183 rotate90Action->setStatusTip(tr("将一幅图旋转90°")); 184 connect(rotate90Action,SIGNAL(triggered()),this,SLOT(ShowRotate90())); 185 186 //旋转180° 187 rotate180Action =new QAction(QIcon("rotate180.png"),tr("旋转180°"), this); 188 rotate180Action->setStatusTip(tr("将一幅图旋转180°")); 189 connect(rotate180Action,SIGNAL(triggered()),this,SLOT(ShowRotate180())); 190 191 //旋转270° 192 rotate270Action =new QAction(QIcon("rotate270.png"),tr("旋转270°"), this); 193 rotate270Action->setStatusTip(tr("将一幅图旋转270°")); 194 connect(rotate270Action,SIGNAL(triggered()),this,SLOT(ShowRotate270())); 195 196 //实现图像镜像的动作（Action） 197 //纵向镜像 198 mirrorVerticalAction =new QAction(tr ("纵向镜像"),this); 199 mirrorVerticalAction->setStatusTip(tr("对一张图作纵向镜像")); 200 connect(mirrorVerticalAction,SIGNAL(triggered()),this,SLOT(ShowMirrorVertical())); 201 202 //横向镜像 203 mirrorHorizontalAction =new QAction(tr("横向镜像"),this); 204 mirrorHorizontalAction->setStatusTip(tr("对一张图作横向镜像")); 205 connect(mirrorHorizontalAction,SIGNAL(triggered()),this,SLOT(ShowMirrorHorizontal())); 206 207 //排序:左对齐、右对齐、居中和两端对齐 208 actGrp =new QActionGroup(this); 209 210 leftAction =new QAction(QIcon("left.png"),"左对齐",actGrp); 211 leftAction->setCheckable(true); 212 213 rightAction =new QAction(QIcon("right.png"),"右对齐",actGrp); 214 rightAction->setCheckable(true); 215 216 centerAction =new QAction(QIcon("center.png"),"居中",actGrp); 217 centerAction->setCheckable(true); 218 219 justifyAction =new QAction(QIcon("justify.png"),"两端对齐",actGrp); 220 justifyAction->setCheckable(true); 221 222 connect(actGrp,SIGNAL(triggered(QAction*)),this,SLOT(ShowAlignment(QAction*))); 223 224 //实现撤销和重做的动作（Action） 225 //撤销和重做 226 undoAction =new QAction(QIcon("undo.png"),"撤销",this); 227 connect(undoAction,SIGNAL(triggered()),showWidget->text,SLOT(undo())); 228 redoAction =new QAction(QIcon("redo.png"),"重做",this); 229 connect(redoAction,SIGNAL(triggered()),showWidget->text,SLOT(redo())); 230 } 231 232 void ImgProcessor::createMenus() 233 { 234 //文件菜单 235 fileMenu =menuBar()->addMenu(tr("文件")); 236 fileMenu->addAction(openFileAction); 237 fileMenu->addAction(NewFileAction); 238 fileMenu->addAction(PrintTextAction); 239 fileMenu->addAction(PrintImageAction); 240 fileMenu->addSeparator(); 241 fileMenu->addAction(exitAction); 242 243 //缩放菜单 244 zoomMenu =menuBar()->addMenu(tr("编辑")); 245 zoomMenu->addAction(copyAction); 246 zoomMenu->addAction(cutAction); 247 zoomMenu->addAction(pasteAction); 248 zoomMenu->addAction(aboutAction); 249 zoomMenu->addSeparator(); 250 zoomMenu->addAction(zoomInAction); 251 zoomMenu->addAction(zoomOutAction); 252 253 //旋转菜单 254 rotateMenu =menuBar()->addMenu(tr("旋转")); 255 rotateMenu->addAction(rotate90Action); 256 rotateMenu->addAction(rotate180Action); 257 rotateMenu->addAction(rotate270Action); 258 259 //镜像菜单 260 mirrorMenu =menuBar()->addMenu(tr("镜像")); 261 mirrorMenu->addAction(mirrorVerticalAction); 262 mirrorMenu->addAction(mirrorHorizontalAction); 263 } 264 265 //创建工具栏 266 void ImgProcessor::createToolBars() 267 { 268 //文件工具条 269 fileTool =addToolBar("File"); 270 fileTool->addAction(openFileAction); 271 fileTool->addAction(NewFileAction); 272 fileTool->addAction(PrintTextAction); 273 fileTool->addAction(PrintImageAction); 274 275 //编辑工具条 276 zoomTool =addToolBar("Edit"); 277 zoomTool->addAction(copyAction); 278 zoomTool->addAction(cutAction); 279 zoomTool->addAction(pasteAction); 280 zoomTool->addSeparator(); 281 zoomTool->addAction(zoomInAction); 282 zoomTool->addAction(zoomOutAction); 283 284 //旋转工具条 285 rotateTool =addToolBar("rotate"); 286 rotateTool->addAction(rotate90Action); 287 rotateTool->addAction(rotate180Action); 288 rotateTool->addAction(rotate270Action); 289 290 //撤销和重做工具条 291 doToolBar =addToolBar("doEdit"); 292 doToolBar->addAction(undoAction); 293 doToolBar->addAction(redoAction); 294 295 //字体工具条 296 fontToolBar =addToolBar("Font"); 297 fontToolBar->addWidget(fontLabel1); 298 fontToolBar->addWidget(fontComboBox); 299 fontToolBar->addWidget(fontLabel2); 300 fontToolBar->addWidget(sizeComboBox); 301 fontToolBar->addSeparator(); 302 fontToolBar->addWidget(boldBtn); 303 fontToolBar->addWidget(italicBtn); 304 fontToolBar->addWidget(underlineBtn); 305 fontToolBar->addSeparator(); 306 fontToolBar->addWidget(colorBtn); 307 308 //排序工具条 309 listToolBar =addToolBar("list"); 310 listToolBar->addWidget(listLabel); 311 listToolBar->addWidget(listComboBox); 312 listToolBar->addSeparator(); 313 listToolBar->addActions(actGrp->actions()); 314 } 315 316 //新建一个文件 317 void ImgProcessor::ShowNewFile() 318 { 319 ImgProcessor *newImgProcessor =new ImgProcessor; 320 newImgProcessor->show(); 321 } 322 323 //打开一个文件 324 void ImgProcessor::ShowOpenFile() 325 { 326 fileName =QFileDialog::getOpenFileName(this,"打开","*.*"); 327 if(!fileName.isEmpty()) 328 { 329 if(showWidget->text->document()->isEmpty()) 330 { 331 loadFile(fileName); 332 } 333 else 334 { 335 ImgProcessor *newImgProcessor =new ImgProcessor; 336 newImgProcessor->show(); 337 newImgProcessor->loadFile(fileName); 338 } 339 } 340 } 341 342 //载入一个文件 343 void ImgProcessor::loadFile(QString filename) 344 { 345 printf("file name:%s\n",filename.data()); 346 347 QFile file(filename); 348 if(file.open(QIODevice::ReadOnly|QIODevice::Text)) 349 { 350 QTextStream textStream(&file); 351 while(!textStream.atEnd()) 352 { 353 showWidget->text->append(textStream.readLine()); 354 printf("read line\n"); 355 } 356 printf("end\n"); 357 } 358 } 359 360 //显示打印文字效果 361 void ImgProcessor::ShowPrintText() 362 { 363 QPrinter printer; 364 QPrintDialog printDialog(&printer,this); 365 if(printDialog.exec()) 366 { 367 QTextDocument *doc =showWidget->text->document(); 368 doc->print(&printer); 369 } 370 } 371 372 //显示打印图片效果 373 void ImgProcessor::ShowPrintImage() 374 { 375 QPrinter printer; 376 QPrintDialog printDialog(&printer,this); 377 if(printDialog.exec()) 378 { 379 QPainter painter(&printer); 380 QRect rect =painter.viewport(); 381 QSize size = img.size(); 382 size.scale(rect.size(),Qt::KeepAspectRatio); 383 384 painter.setViewport(rect.x(),rect.y(),size.width(),size.height()); 385 painter.setWindow(img.rect()); 386 painter.drawImage(0,0,img); 387 } 388 } 389 390 //放大一张图片 391 void ImgProcessor::ShowZoomIn() 392 { 393 if(img.isNull()) 394 return; 395 QMatrix martix; 396 martix.scale(2,2); 397 img = img.transformed(martix); 398 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 399 } 400 401 //缩小一张图片 402 void ImgProcessor::ShowZoomOut() 403 { 404 if(img.isNull()) 405 return; 406 QMatrix matrix; 407 matrix.scale(0.5,0.5); 408 img = img.transformed(matrix); 409 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 410 } 411 412 //旋转90度 413 void ImgProcessor::ShowRotate90() 414 { 415 if(img.isNull()) 416 return; 417 QMatrix matrix; 418 matrix.rotate(90); 419 img = img.transformed(matrix); 420 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 421 } 422 423 //旋转180度 424 void ImgProcessor::ShowRotate180() 425 { 426 if(img.isNull()) 427 return; 428 QMatrix matrix; 429 matrix.rotate(180); 430 img = img.transformed(matrix); 431 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 432 } 433 434 //旋转270度 435 void ImgProcessor::ShowRotate270() 436 { 437 if(img.isNull()) 438 return; 439 QMatrix matrix; 440 matrix.rotate(270); 441 img = img.transformed(matrix); 442 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 443 } 444 445 //水平镜像 446 void ImgProcessor::ShowMirrorVertical() 447 { 448 if(img.isNull()) 449 return; 450 img=img.mirrored(false,true); 451 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 452 } 453 454 //垂直镜像 455 void ImgProcessor::ShowMirrorHorizontal() 456 { 457 if(img.isNull()) 458 return; 459 img=img.mirrored(true,false); 460 showWidget->imageLabel->setPixmap(QPixmap::fromImage(img)); 461 } 462 463 //设置字体 464 void ImgProcessor::ShowFontComboBox(QString comboStr) 465 { 466 QTextCharFormat fmt; 467 fmt.setFontFamily(comboStr); 468 mergeFormat(fmt); //把新的格式应用到光标选区内的字符 469 } 470 471 //把新的格式应用到光标选区内的字符 472 void ImgProcessor::mergeFormat(QTextCharFormat format) 473 { 474 QTextCursor cursor =showWidget->text->textCursor(); 475 if(!cursor.hasSelection()) 476 cursor.select(QTextCursor::WordUnderCursor); 477 cursor.mergeCharFormat(format); 478 showWidget->text->mergeCurrentCharFormat(format); 479 } 480 481 //设置字号 482 void ImgProcessor::ShowSizeSpinBox(QString spinValue) 483 { 484 QTextCharFormat fmt; 485 fmt.setFontPointSize(spinValue.toFloat()); 486 showWidget->text->mergeCurrentCharFormat(fmt); 487 } 488 489 //设置文字显示加粗 490 void ImgProcessor::ShowBoldBtn() 491 { 492 QTextCharFormat fmt; 493 fmt.setFontWeight(boldBtn->isChecked()?QFont::Bold:QFont::Normal); 494 showWidget->text->mergeCurrentCharFormat(fmt); 495 } 496 497 //设置文字显示斜体 498 void ImgProcessor::ShowItalicBtn() 499 { 500 QTextCharFormat fmt; 501 fmt.setFontItalic(italicBtn->isChecked()); 502 showWidget->text->mergeCurrentCharFormat(fmt); 503 } 504 505 //设置文字加下画线 506 void ImgProcessor::ShowUnderlineBtn() 507 { 508 QTextCharFormat fmt; 509 fmt.setFontUnderline(underlineBtn->isChecked()); 510 showWidget->text->mergeCurrentCharFormat(fmt); 511 } 512 513 //设置文字颜色 514 void ImgProcessor::ShowColorBtn() 515 { 516 QColor color=QColorDialog::getColor(Qt::red,this); 517 if(color.isValid()) 518 { 519 QTextCharFormat fmt; 520 fmt.setForeground(color); 521 showWidget->text->mergeCurrentCharFormat(fmt); 522 } 523 } 524 525 //设置文字改变 526 void ImgProcessor::ShowCurrentFormatChanged(const QTextCharFormat &fmt) 527 { 528 fontComboBox->setCurrentIndex(fontComboBox->findText(fmt.fontFamily())); 529 sizeComboBox->setCurrentIndex(sizeComboBox->findText(QString::number(fmt.fontPointSize()))); 530 boldBtn->setChecked(fmt.font().bold()); 531 italicBtn->setChecked(fmt.fontItalic()); 532 underlineBtn->setChecked(fmt.fontUnderline()); 533 } 534 535 536 //设置对齐 537 void ImgProcessor::ShowAlignment(QAction *act) 538 { 539 if(act==leftAction) 540 showWidget->text->setAlignment(Qt::AlignLeft); 541 if(act==rightAction) 542 showWidget->text->setAlignment(Qt::AlignRight); 543 if(act==centerAction) 544 showWidget->text->setAlignment(Qt::AlignCenter); 545 if(act==justifyAction) 546 showWidget->text->setAlignment(Qt::AlignJustify); 547 } 548 549 //鼠标位置改变 550 void ImgProcessor::ShowCursorPositionChanged() 551 { 552 if(showWidget->text->alignment()==Qt::AlignLeft) 553 leftAction->setChecked(true); 554 if(showWidget->text->alignment()==Qt::AlignRight) 555 rightAction->setChecked(true); 556 if(showWidget->text->alignment()==Qt::AlignCenter) 557 centerAction->setChecked(true); 558 if(showWidget->text->alignment()==Qt::AlignJustify) 559 justifyAction->setChecked(true); 560 } 561 562 //设置排序方式 563 void ImgProcessor::ShowList(int index) 564 { 565 QTextCursor cursor=showWidget->text->textCursor(); 566 567 if(index!=0) 568 { 569 QTextListFormat::Style style=QTextListFormat::ListDisc; 570 switch(index) //设置style属性值 571 { 572 default: 573 case 1: 574 style=QTextListFormat::ListDisc; break; 575 case 2: 576 style=QTextListFormat::ListCircle; break; 577 case 3: 578 style=QTextListFormat::ListSquare; break; 579 case 4: 580 style=QTextListFormat::ListDecimal; break; 581 case 5: 582 style=QTextListFormat::ListLowerAlpha; break; 583 case 6: 584 style=QTextListFormat::ListUpperAlpha; break; 585 case 7: 586 style=QTextListFormat::ListLowerRoman; break; 587 case 8: 588 style=QTextListFormat::ListUpperRoman; break; 589 } 590 cursor.beginEditBlock(); //设置缩进值 591 592 QTextBlockFormat blockFmt=cursor.blockFormat(); 593 QTextListFormat listFmt; 594 595 if(cursor.currentList()) 596 { 597 listFmt= cursor.currentList()->format(); 598 } 599 else 600 { 601 listFmt.setIndent(blockFmt.indent()+1); 602 blockFmt.setIndent(0); 603 cursor.setBlockFormat(blockFmt); 604 } 605 listFmt.setStyle(style); 606 cursor.createList(listFmt); 607 608 cursor.endEditBlock(); 609 } 610 else 611 { 612 QTextBlockFormat bfmt; 613 bfmt.setObjectIndex(-1); 614 cursor.mergeBlockFormat(bfmt); 615 } 616 }
- main.cpp
1 #include "showwidget.h" 2 #include "imgprocessor.h" 3 #include <QApplication> 4 5 int main(int argc, char *argv[]) 6 { 7 QApplication a(argc, argv); 8 //ShowWidget w; 9 ImgProcessor w; 10 w.show(); 11 12 return a.exec(); 13 }
