Copy the KDE 3.5 branch to branches/trinity for new KDE 3.5 features.

BUG:215923


git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/kdegraphics@1054174 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

1 files changed, 343 insertions, 0 deletions

diff --git a/kviewshell/pageSize.cpp b/kviewshell/pageSize.cpp
new file mode 100644
index 00000000..f52f01a4
--- /dev/null
+++ b/kviewshell/pageSize.cpp
@@ -0,0 +1,343 @@
+// pageSize.cpp
+//
+// Part of KVIEWSHELL - A framework for multipage text/gfx viewers
+//
+// (C) 2002-2003 Stefan Kebekus
+// Distributed under the GPL
+
+// Add header files alphabetically
+
+#include <config.h>
+
+#include <kdebug.h>
+#include <kglobal.h>
+#include <klocale.h>
+#include <math.h>
+#include <qstringlist.h>
+
+#include "pageSize.h"
+#include "units.h"
+
+struct pageSizeItem 
+{
+  const char *name;
+  float width;         // in mm
+  float height;        // in mm
+  const char *preferredUnit;
+};
+
+#define defaultMetricPaperSize 4 // Default paper size is "DIN A4"
+#define defaultImperialPaperSize 8 // Default paper size is "US Letter"
+
+static pageSizeItem staticList[] = { {"DIN A0",    841.0, 1189.0, "mm"}, 
+				     {"DIN A1",    594.0, 841.0, "mm"}, 
+				     {"DIN A2",    420.0, 594.0, "mm"}, 
+				     {"DIN A3",    297.0, 420.0, "mm"}, 
+				     {"DIN A4",    210.0, 297.0, "mm"},
+				     {"DIN A5",    148.5, 210.0, "mm"}, 
+				     {"DIN B4",    250.0, 353.0, "mm"}, 
+				     {"DIN B5",    176.0, 250.0, "mm"},
+				     {"US Letter", 215.9, 279.4, "in"}, 
+				     {"US Legal",  215.9, 355.6, "in"},
+				     {0,  0.0, 0.0, 0} // marks the end of the list.
+};
+
+
+pageSize::pageSize()
+{
+  currentSize = defaultPageSize();
+  pageWidth.setLength_in_mm(staticList[currentSize].width);
+  pageHeight.setLength_in_mm(staticList[currentSize].height);
+}
+
+
+pageSize::pageSize(const SimplePageSize& s)
+{
+  pageWidth = s.width();
+  pageHeight = s.height();
+  
+  rectifySizes();
+  reconstructCurrentSize();
+}
+
+
+bool pageSize::setPageSize(const QString& name)
+{
+  // See if we can recognize the string
+  QString currentName;
+  for(int i=0; staticList[i].name != 0; i++) {
+    currentName = staticList[i].name;
+    if (currentName == name) {
+      currentSize = i;  
+      // Set page width/height accordingly
+      pageWidth.setLength_in_mm(staticList[currentSize].width);
+      pageHeight.setLength_in_mm(staticList[currentSize].height);
+      emit(sizeChanged(*this));
+      return true;
+    }
+  }
+
+  // Check if the string contains 'x'. If yes, we assume it is of type
+  // "<number>x<number>". If yes, the first number is interpreted as
+  // the width in mm, the second as the height in mm
+  if (name.find('x') >= 0) {
+    bool wok, hok;
+    float pageWidth_tmp  = name.section('x',0,0).toFloat(&wok);
+    float pageHeight_tmp = name.section('x',1,1).toFloat(&hok);
+    if (wok && hok) {
+      pageWidth.setLength_in_mm(pageWidth_tmp);
+      pageHeight.setLength_in_mm(pageHeight_tmp);
+      
+      rectifySizes();
+      reconstructCurrentSize();
+      emit(sizeChanged(*this));
+      return true;
+    }
+  }
+  
+  // Check if the string contains ','. If yes, we assume it is of type
+  // "<number><unit>,<number><uni>". The first number is supposed to
+  // be the width, the second the height.
+  if (name.find(',') >= 0) {
+    bool wok, hok;
+    float pageWidth_tmp  = distance::convertToMM(name.section(',',0,0), &wok);
+    float pageHeight_tmp = distance::convertToMM(name.section(',',1,1), &hok);
+    if (wok && hok) {
+      pageWidth.setLength_in_mm(pageWidth_tmp);
+      pageHeight.setLength_in_mm(pageHeight_tmp);
+      
+      rectifySizes();
+      reconstructCurrentSize();
+      emit(sizeChanged(*this));
+      return true;
+    } 
+  }  
+  
+  // Last resource. Set the default, in case the string is
+  // unintelligible to us.
+  currentSize = defaultPageSize();
+  pageWidth.setLength_in_mm(staticList[currentSize].width);
+  pageHeight.setLength_in_mm(staticList[currentSize].height);
+  kdError(1223) << "pageSize::setPageSize: could not parse '" << name << "'. Using " << staticList[currentSize].name << " as a default." << endl;
+  emit(sizeChanged(*this));
+  return false;
+}
+
+
+void pageSize::setPageSize(double width, double height)
+{
+  SimplePageSize oldPage = *this;
+
+  pageWidth.setLength_in_mm(width);
+  pageHeight.setLength_in_mm(height);
+  
+  rectifySizes();
+  reconstructCurrentSize();
+  if ( !isNearlyEqual(oldPage))
+    emit(sizeChanged(*this));
+}
+
+
+void pageSize::setPageSize(const QString& width, const QString& _widthUnits, const QString& height, const QString& _heightUnits)
+{
+  SimplePageSize oldPage = *this;
+
+  double w = width.toFloat();
+  double h = height.toFloat();
+
+  QString widthUnits = _widthUnits;
+  if ((widthUnits != "cm") && (widthUnits != "mm") && (widthUnits != "in")) {
+    kdError(1223) << "Unrecognized page width unit '" << widthUnits << "'. Assuming mm" << endl;
+    widthUnits = "mm";
+  }
+  pageWidth.setLength_in_mm(w);
+  if (widthUnits == "cm")
+    pageWidth.setLength_in_cm(w);
+  if (widthUnits == "in")
+    pageWidth.setLength_in_inch(w);
+  
+  QString heightUnits = _heightUnits;
+  if ((heightUnits != "cm") && (heightUnits != "mm") && (heightUnits != "in")) {
+    kdError(1223) << "Unrecognized page height unit '" << widthUnits << "'. Assuming mm" << endl;
+    heightUnits = "mm";
+  }
+  pageHeight.setLength_in_mm(h);
+  if (heightUnits == "cm")
+    pageHeight.setLength_in_cm(h);
+  if (heightUnits == "in")
+    pageHeight.setLength_in_inch(h);
+
+  rectifySizes();
+  reconstructCurrentSize();
+  if ( !isNearlyEqual(oldPage))
+    emit(sizeChanged(*this));
+}
+
+
+pageSize &pageSize::operator= (const pageSize &src)
+{
+  SimplePageSize oldPage = *this;
+
+  currentSize = src.currentSize;
+  pageWidth   = src.pageWidth;
+  pageHeight  = src.pageHeight;
+
+  if ( !isNearlyEqual(oldPage))
+    emit(sizeChanged(*this));
+  return *this;
+}
+
+
+void pageSize::rectifySizes()
+{
+  // Now do some sanity checks to make sure that values are not
+  // outrageous. We allow values between 5cm and 50cm.
+  if (pageWidth.getLength_in_mm() < 50)
+    pageWidth.setLength_in_mm(50.0);
+  if (pageWidth.getLength_in_mm() > 1200)
+    pageWidth.setLength_in_mm(1200);
+  if (pageHeight.getLength_in_mm() < 50)
+    pageHeight.setLength_in_mm(50);
+  if (pageHeight.getLength_in_mm() > 1200)
+    pageHeight.setLength_in_mm(1200);
+  return;
+}
+
+
+QString pageSize::preferredUnit() const
+{
+  if (currentSize >= 0)
+    return staticList[currentSize].preferredUnit;
+
+  // User-defined size. Give a preferred unit depening on the locale.
+  if (KGlobal::locale()-> measureSystem() == KLocale::Metric)
+    return "mm";
+  else
+    return "in";
+}
+
+
+QString pageSize::widthString(const QString& unit) const
+{
+  QString answer = "--";
+
+  if (unit == "cm")
+    answer.setNum(pageWidth.getLength_in_cm());
+  if (unit == "mm")
+    answer.setNum(pageWidth.getLength_in_mm());
+  if (unit == "in")
+    answer.setNum(pageWidth.getLength_in_inch());
+
+  return answer;
+}
+
+
+QString pageSize::heightString(const QString& unit) const
+{
+  QString answer = "--";
+
+  if (unit == "cm")
+    answer.setNum(pageHeight.getLength_in_cm());
+  if (unit == "mm")
+    answer.setNum(pageHeight.getLength_in_mm());
+  if (unit == "in")
+    answer.setNum(pageHeight.getLength_in_inch());
+
+  return answer;
+}
+
+
+QStringList pageSize::pageSizeNames() 
+{
+  QStringList names;
+  
+  for(int i=0; staticList[i].name != 0; i++) 
+    names << staticList[i].name;
+
+  return names;
+}
+
+
+QString pageSize::formatName() const
+{
+  if (currentSize >= 0)
+    return staticList[currentSize].name;
+  else 
+    return QString::null;
+}
+
+
+int pageSize::getOrientation() const
+{
+  if (currentSize == -1) {
+    kdError(1223) << "pageSize::getOrientation: getOrientation called for page format that does not have a name." << endl;
+    return 0;
+  }
+
+  if (pageWidth.getLength_in_mm() == staticList[currentSize].width)
+    return 0;
+  else
+    return 1;
+}
+
+
+void pageSize::setOrientation(int orient)
+{
+  if (currentSize == -1) {
+    kdError(1223) << "pageSize::setOrientation: setOrientation called for page format that does not have a name." << endl;
+    return;
+  }
+  
+  if (orient == 1) {
+    pageWidth.setLength_in_mm(staticList[currentSize].height);
+    pageHeight.setLength_in_mm(staticList[currentSize].width);
+  } else {
+    pageWidth.setLength_in_mm(staticList[currentSize].width);
+    pageHeight.setLength_in_mm(staticList[currentSize].height);
+  }
+  emit(sizeChanged(*this));
+}
+
+
+QString pageSize::serialize() const
+{
+  if ((currentSize >= 0) && (fabs(staticList[currentSize].height-pageHeight.getLength_in_mm()) <= 0.5))
+    return staticList[currentSize].name;
+  else 
+    return QString("%1x%2").arg(pageWidth.getLength_in_mm()).arg(pageHeight.getLength_in_mm());
+}
+
+
+void pageSize::reconstructCurrentSize()
+{
+  for(int i=0; staticList[i].name != 0; i++) {
+    if ((fabs(staticList[i].width - pageWidth.getLength_in_mm()) <= 2) && (fabs(staticList[i].height - pageHeight.getLength_in_mm()) <= 2)) {
+      currentSize = i;
+      pageWidth.setLength_in_mm(staticList[currentSize].width);
+      pageHeight.setLength_in_mm(staticList[currentSize].height);
+      return;
+    }
+    if ((fabs(staticList[i].height - pageWidth.getLength_in_mm()) <= 2) && (fabs(staticList[i].width - pageHeight.getLength_in_mm()) <= 2)) {
+      currentSize = i;
+      pageWidth.setLength_in_mm(staticList[currentSize].height);
+      pageHeight.setLength_in_mm(staticList[currentSize].width);
+      return;
+    }
+  }
+  currentSize = -1;
+  return;
+}
+
+int pageSize::defaultPageSize()
+{
+  // FIXME: static_cast<QPrinter::PageSize>(KGlobal::locale()->pageSize())
+  //        is the proper solution here.  Then you can determine the values
+  //        without using your hardcoded table too!
+  if (KGlobal::locale()-> measureSystem() == KLocale::Metric)
+    return defaultMetricPaperSize;
+  else
+    return defaultImperialPaperSize;
+}
+
+#include "pageSize.moc"
+