getPresentationTextBox static method

Implementation

static PresentationTextBox? getPresentationTextBox(GetPresentationTextBoxParam params) {
  Offset offset = const Offset(0, 0);
  Size size = const Size(0, 0);
  double offsetY = 0;
  double offsetX = 0;
  if (params.spElement.parentElement != null && params.spElement.parentElement?.name.toString() == "p:grpSp") {
    var grpSpPr = params.spElement.parentElement?.findAllElements("p:grpSpPr");
    if (grpSpPr != null && grpSpPr.isNotEmpty) {
      var chckOff = grpSpPr.first.findAllElements("a:off");
      if (chckOff.isNotEmpty) {
        var offX = chckOff.first.getAttribute("x");
        if (offX != null) {
          offsetX = double.parse(offX);
        }
        var offY = chckOff.first.getAttribute("y");
        if (offY != null) {
          offsetY = double.parse(offY);
        }
      }
      var chkChOff = grpSpPr.first.findAllElements("a:chOff");
      if (chkChOff.isNotEmpty) {
        //print("a:chOff");
        //print(chkChOff);
        var offX = chkChOff.first.getAttribute("x");
        if (offX != null) {
          //print(offsetX);
          offsetX = offsetX - double.parse(offX);
          //print(offsetX);
        }
        var offY = chkChOff.first.getAttribute("y");
        if (offY != null) {
          //print(offsetY);
          offsetY = offsetY - double.parse(offY);
          //print(offsetY);
        }
      }
    }
  }
  var xfrmElement = params.spElement.findAllElements("a:xfrm");
  if (xfrmElement.isNotEmpty) {
    var chkOff = xfrmElement.first.findAllElements("a:off");
    if (chkOff.isNotEmpty) {
      var offX = chkOff.first.getAttribute("x");
      var offY = chkOff.first.getAttribute("y");
      if (offX != null && offY != null) {
        offset = Offset(double.parse(offX) + offsetX, double.parse(offY) + offsetY);
      }
    }
    var chkExt = xfrmElement.first.findAllElements("a:ext");
    if (chkExt.isNotEmpty) {
      var extX = chkExt.first.getAttribute("cx");
      var extY = chkExt.first.getAttribute("cy");
      if (extX != null && extY != null) {
        size = Size(double.parse(extX), double.parse(extY));
      }
    }
  }
  List<PresentationParagraph> presentationParagraphs = [];
  params.spElement.findAllElements("p:txBody").forEach((txt) {
    var chkPara = txt.findAllElements("a:p");
    List<PresentationText> presentationTexts = [];
    if (chkPara.isNotEmpty) {
      for (var para in chkPara) {
        var chkParaProp = para.findAllElements("a:pPr");
        String align = "";
        if (chkParaProp.isNotEmpty) {
          var chkAlg = chkParaProp.first.getAttribute("algn");
          if (chkAlg != null) {
            align = chkAlg;
          }
        }
        presentationTexts = [];
        var chkR = para.findAllElements("a:r");
        if (chkR.isNotEmpty) {
          for (var r in chkR) {
            double fontSize = 20;
            String colorScheme = "";
            bool isBold = false;
            String lumMod = "";
            String lumOff = "";
            var rPr = r.findAllElements("a:rPr");
            if (rPr.isNotEmpty) {
              var tempSize = rPr.first.getAttribute("sz");
              if (tempSize != null) {
                fontSize = double.parse(tempSize) / 180;
              }
              var tempBold = rPr.first.getAttribute("b");
              if (tempBold != null) {
                if (tempBold == "1") {
                  isBold = true;
                }
              }
              var chkSchemeClr = rPr.first.findAllElements("a:schemeClr");

              if (chkSchemeClr.isNotEmpty) {
                var tempClrScheme = chkSchemeClr.first.getAttribute("val");

                if (tempClrScheme != null) {
                  if (params.clrMap[tempClrScheme] != null) {
                    colorScheme = params.clrMap[tempClrScheme]!;
                  } else {
                    colorScheme = tempClrScheme;
                  }
                }
                var chkLumMod = chkSchemeClr.first.findAllElements("a:lumMod");
                if (chkLumMod.isNotEmpty) {
                  var tempLumMod = chkLumMod.first.getAttribute("val");
                  if (tempLumMod != null) {
                    lumMod = tempLumMod;
                  }
                }
                var chkLumOff = chkSchemeClr.first.findAllElements("a:lumOff");
                if (chkLumOff.isNotEmpty) {
                  var tempLumOff = chkLumOff.first.getAttribute("val");
                  if (tempLumOff != null) {
                    lumOff = tempLumOff;
                  }
                }
              }
            }
            var text = "";
            r.findAllElements("a:t").forEach((txt2) {
              text += txt2.innerText;
            });

            if (text.isNotEmpty) {
              PresentationText presentationText = PresentationText(text, fontSize);
              if (colorScheme.isNotEmpty) {
                presentationText.colorScheme = colorScheme;
              }
              if (isBold) {
                presentationText.isBold = true;
              }
              if (lumOff.isNotEmpty) {
                presentationText.lumOff = lumOff;
              }
              if (lumMod.isNotEmpty) {
                presentationText.lumMod = lumMod;
              }
              presentationTexts.add(presentationText);
            }
          }
        }
        if (presentationTexts.isNotEmpty || params.spElement.findAllElements("p:ph").isNotEmpty) {
          PresentationParagraph paragraph = PresentationParagraph();
          paragraph.textSpans = presentationTexts;
          if (align.isNotEmpty) {
            paragraph.align = align;
          }
          var chkPh = params.spElement.findAllElements("p:ph");
          if (chkPh.isNotEmpty) {
            //print(chkPh);
            var type = chkPh.first.getAttribute("type");
            if (type != null) {
              paragraph.type = type;
            }
            var idx = chkPh.first.getAttribute("idx");
            if (idx != null) {
              paragraph.idx = idx;
            }
          }
          presentationParagraphs.add(paragraph);
        }
      }
    }
  });
  if (presentationParagraphs.isNotEmpty) {
    PresentationTextBox presentationTextBox = PresentationTextBox(offset, size);
    presentationTextBox.presentationParas = presentationParagraphs;
    return presentationTextBox;
  } else {
    return null;
  }
}