Source Code for Module mcbase.libs.reportviewer.viewerwidget

  1  # -*- coding: utf-8 -*- 
  2   
  3  ########################################################################## 
  4  # viewerwidget.py 
  5  # 
  6  # Rapor Gösterim Nesnesi 
  7  # 
  8  # (C) 2007 Likya Yazılım ve Bilişim Hizmetleri Ltd. Şti. 
  9  ########################################################################## 
 10   
 11  from PyQt4.QtCore import * 
 12  from PyQt4.QtGui import * 
 13   
 14  from viewer import Viewer 
 15  from toolbar import ToolBar 
 16   
 17  from constants import Constants 
 18   
 19 -class ViewerWidget(QWidget): 
 20       
 21 -    def __init__(self, parent): 
 22          QWidget.__init__(self, parent) 
 23           
 24          # Rapor Görünümü 
 25          self._viewer = Viewer(self) 
 26          self._viewer.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Expanding)) 
 27           
 28          # Tool Bar 
 29          self._toolbar = ToolBar(self) 
 30          self._toolbar.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Maximum)) 
 31           
 32          # Status Bar 
 33          self._statusBar = QStatusBar(self) 
 34          self._statusBar.setSizePolicy(QSizePolicy(QSizePolicy.Expanding, QSizePolicy.Maximum)) 
 35          self._statusBar.setSizeGripEnabled(False) 
 36           
 37          self._pageSource = None 
 38           
 39          self.layoutItems() 
 40           
 41          # Sinyaller ve ayarlar. 
 42          self.initItems() 
 43       
 44 -    def initItems(self): 
 45          ''' 
 46          Sinyaller ve ayarlar 
 47          ''' 
 48          self.connect(self._toolbar, SIGNAL('resetPages()'), self, SIGNAL('resetPages()')) 
 49          self.connect(self._toolbar, SIGNAL('print()'), self, SIGNAL('print()')) 
 50          self.connect(self._toolbar, SIGNAL('setZoom(float)'), self.setZoom) 
 51          self.connect(self._toolbar, SIGNAL('adjustZoomForPageWidth()'), self.adjustZoomForPageWidth) 
 52          self.connect(self._toolbar, SIGNAL('adjustZoomForPageHeight()'), self.adjustZoomForPageHeight) 
 53          self.connect(self._toolbar, SIGNAL('pageOrientationChanged()'), self.pageOrientationChanged) 
 54          self.connect(self._toolbar, SIGNAL('gotoPage(int)'), self._viewer.gotoPage) 
 55          self.connect(self._toolbar, SIGNAL('paperTypeChanged(PyQt_PyObject)'), self.paperTypeChanged) 
 56          self.connect(self._viewer, SIGNAL('setPageNumberText(int)'), self._toolbar.setPageNumberText) 
 57       
 58 -    def setZoom(self, newRatio): 
 59          ''' 
 60          Yeni zoom oranını yansıtıyoruz. 
 61          ''' 
 62          self._pageSource.setZoom(newRatio) 
 63          self.emit(SIGNAL('resetPages()')) 
 64       
 65 -    def adjustZoomForPageWidth(self): 
 66          ''' 
 67          Sayfa genişliğine göre zoom yapar. 
 68          ''' 
 69          pageWidth = self._pageSource.pageWidth(False) + Viewer.MARGIN 
 70           
 71          zoomRatio =  Viewer.WIDTH / float(pageWidth) 
 72          zoomRatio = min(abs(zoomRatio), 4) 
 73          zoomRatio = max(abs(zoomRatio), 0.1) 
 74           
 75          self._toolbar.setZoom(zoomRatio) 
 76       
 77 -    def adjustZoomForPageHeight(self): 
 78          ''' 
 79          Sayfa yüksekliğine göre zoom yapar. 
 80          ''' 
 81          pageHeight = self._pageSource.pageHeight(False) + Viewer.MARGIN 
 82           
 83          zoomRatio =  Viewer.HEIGHT / float(pageHeight) 
 84          zoomRatio = min(abs(zoomRatio), 4) 
 85          zoomRatio = max(abs(zoomRatio), 0.1) 
 86           
 87          self._toolbar.setZoom(zoomRatio) 
 88       
 89 -    def setPageSource(self, pageSource): 
 90          ''' 
 91          Sayfa kaynağını gösterim ekranına belirtir. 
 92          ''' 
 93          self._pageSource = pageSource 
 94       
 95 -    def viewer(self): 
 96          ''' 
 97          Sayfaların gösterildiği ekranı döndürür. 
 98          ''' 
 99          return self._viewer 
100       
101 -    def toolbar(self): 
102          ''' 
103          ToolBar nesnesini belirtir. 
104          ''' 
105          return self._toolbar 
106       
107 -    def clearPages(self): 
108          ''' 
109          Tüm görüntüyü siler. 
110          ''' 
111          self._viewer.clearPages() 
112       
113 -    def addPages(self): 
114          ''' 
115          Gösterim ekranına bir sayfa ekler. 
116          ''' 
117          self._viewer.addPages(self._pageSource) 
118       
119 -    def layoutItems(self): 
120          ''' 
121          Görünüm ekranındaki nesneleri dizer. 
122          ''' 
123          layout = QVBoxLayout(self) 
124           
125          layout.setSpacing(3) 
126          layout.setMargin(0) 
127           
128          layout.addWidget(self._toolbar) 
129          layout.addWidget(self._viewer) 
130          layout.addWidget(self._statusBar) 
131       
132 -    def layoutPages(self): 
133          ''' 
134          Rapor sayfalarını ilgili layout'a göre düzgünce yerleştirir. 
135          ''' 
136          self._viewer.layoutPages() 
137       
138 -    def adjustContentsSize(self): 
139          ''' 
140          Nesnelerin kapladığı alana göre scroll barları yeniden ayarlar. 
141          ''' 
142          self._viewer.adjustContentsSize() 
143       
144 -    def getPageSizes(self, pageOrientation=Constants.ORIENTATION_PORTRAIT): 
145          ''' 
146          Kağıt türüne göre uygun sayfa boylarını verir. 
147          ''' 
148          paperType = self._toolbar.paperType() 
149           
150          width = None 
151          height = None 
152           
153          if paperType != 'DESIGN' and paperType in Constants.PAPER_SIZES: 
154              paperWidth, paperHeight = Constants.PAPER_SIZES[paperType] 
155              sideRatio = float(paperWidth) / float(paperHeight) 
156               
157              pageWidth = None 
158              pageHeight = None 
159               
160              if pageOrientation == Constants.ORIENTATION_PORTRAIT: 
161                  pageWidth = self._pageSource.pageWidth(False) 
162                  pageHeight = self._pageSource.pageHeight(False) 
163               
164              else: 
165                  pageHeight = self._pageSource.pageWidth(False) 
166                  pageWidth = self._pageSource.pageHeight(False) 
167               
168              widthRatiod = (pageWidth, pageWidth / sideRatio) 
169              heightRatiod = (pageHeight * sideRatio, pageHeight) 
170               
171              width, height = max(widthRatiod, heightRatiod) 
172           
173          return width, height 
174       
175 -    def pageOrientationChanged(self): 
176          ''' 
177          Sayfa yönü değiştiği zaman çalışır. 
178          ''' 
179          pageOrientation = self._toolbar.pageOrientation() 
180           
181          self._pageSource.setAbsoluteLengths(None, None) 
182           
183          if pageOrientation == Constants.ORIENTATION_LANDSCAPE: 
184              paperType = self._pageSource.paperType() 
185              self._toolbar.setPaperType(paperType) 
186           
187          width, height = self.getPageSizes(pageOrientation) 
188          self._pageSource.setAbsoluteLengths(width, height) 
189           
190          self._pageSource.setPageOrientation(pageOrientation) 
191           
192          if pageOrientation == Constants.ORIENTATION_LANDSCAPE: 
193              self.adjustZoomForPageHeight() 
194           
195          else: 
196              self.emit(SIGNAL('resetPages()')) 
197       
198 -    def paperTypeChanged(self, paperType): 
199          ''' 
200          Sayfa boyutu değiştiği zaman çalışır. 
201          ''' 
202          pageOrientation = Constants.ORIENTATION_PORTRAIT 
203           
204          self._pageSource.setAbsoluteLengths(None, None) 
205           
206          if paperType != 'DESIGN' and paperType in Constants.PAPER_SIZES: 
207              # Eğer yatay baskı ise, görünümü yatay yapıyoruz. 
208              pageOrientation = self._pageSource.preferredPageOrientation() 
209               
210              width, height = self.getPageSizes(pageOrientation) 
211              self._pageSource.setAbsoluteLengths(width, height) 
212           
213          else: 
214              self._pageSource.setAbsoluteLengths(None, None) 
215           
216          self._pageSource.setPageOrientation(pageOrientation) 
217          self._toolbar.setPageOrientation(pageOrientation) 
218           
219          self.emit(SIGNAL('resetPages()')) 
220       
221 -    def event(self, e): 
222          # Status eventlerini status bar'da gösterir. 
223          if e.type() == QEvent.StatusTip: 
224              self._statusBar.showMessage(e.tip()) 
225           
226          return QWidget.event(self, e) 
227