1 files changed, 124 insertions, 0 deletions

diff --git a/task1/cairodocument.cpp b/task1/cairodocument.cpp
new file mode 100644
index 0000000..fb9b20e
--- /dev/null
+++ b/task1/cairodocument.cpp
@@ -0,0 +1,124 @@
+/**
+ * $Id: cairodocument.cpp 2 2009-10-31 02:48:23Z l0728348 $
+ *
+ * Copyright 2009
+ *
+ * @author Manuel Mausz (0728348)
+ * @brief  implements some classes to better use cairomm.
+ *         however, the design is however crappy.
+ *         maybe try using papyrus.
+ */
+
+#include "cairodocument.h"
+
+using namespace std;
+using namespace Cairo;
+
+static const double mmpt = 25.4/72;
+
+void CairoObject::apply(const Cairo::RefPtr<Cairo::Context> context)
+{
+  if (m_objects.size())
+    context->save();
+  prepareObject(context);
+  for(CairoObjectList::iterator it = m_objects.begin(); it != m_objects.end(); ++it)
+    (*it)->apply(context);
+  applyObject(context);
+  if (m_objects.size())
+    context->restore();
+}
+
+/*----------------------------------------------------------------------------*/
+
+void CairoFont::applyObject(const Cairo::RefPtr<Cairo::Context> context)
+{
+  context->set_font_size(m_size);
+  context->select_font_face(m_family, m_slant, m_weight);
+}
+/*----------------------------------------------------------------------------*/
+
+double CairoFont::height()
+{
+  if (m_height >= 0)
+    return m_height;
+  Cairo::RefPtr<Cairo::Surface> surface = Cairo::ImageSurface::create(FORMAT_RGB24, 1, 1);
+  Cairo::RefPtr<Cairo::Context> context = Cairo::Context::create(surface);
+  Cairo::FontExtents fextents;
+  applyObject(context);
+  context->get_font_extents(fextents);
+  m_height = fextents.height * mmpt;
+  return m_height;
+}
+
+/*----------------------------------------------------------------------------*/
+
+void CairoColor::applyObject(const Cairo::RefPtr<Cairo::Context> context)
+{
+  context->set_source_rgba(m_red, m_green, m_blue, m_alpha);
+}
+
+/*----------------------------------------------------------------------------*/
+
+void CairoRectangle::applyObject(const Cairo::RefPtr<Cairo::Context> context)
+{
+  context->set_line_width(m_linewidth / mmpt);
+  context->rectangle(m_x / mmpt, m_y / mmpt, m_width / mmpt, m_height / mmpt);
+  context->stroke();
+}
+
+/*----------------------------------------------------------------------------*/
+
+CairoTextBox& CairoTextBox::addBorder(const double linewidth, CairoObject *obj)
+{
+  CairoRectangle *rectangle = new CairoRectangle(m_x, m_y, m_width, m_height, linewidth);
+  m_rectangles.push_back(rectangle);
+  if (obj != NULL)
+    rectangle->add(*obj);
+  add(*rectangle);
+  return *this;
+}
+
+/*----------------------------------------------------------------------------*/
+
+void CairoTextBox::applyObject(const Cairo::RefPtr<Cairo::Context> context)
+{
+  Cairo::FontExtents fextents;
+  context->get_font_extents(fextents);
+  size_t cut;
+  int x = 1;
+  string text = m_text.str();
+  while((cut = text.find_first_of('\n')) != string::npos)
+  {
+    context->move_to(m_x / mmpt, (m_y + m_padding) / mmpt + x * fextents.height);
+    context->show_text(text.substr(0, cut));
+    text = text.substr(cut + 1);
+    ++x;
+  }
+  context->move_to(m_x / mmpt, (m_y + m_padding) / mmpt + x * fextents.height);
+  context->show_text(text);
+}
+
+/*----------------------------------------------------------------------------*/
+
+bool CairoDocument::save(const std::string& filename, const OutputFormat format)
+{
+  Cairo::RefPtr<Cairo::Surface> surface;
+  switch(format)
+  {
+#ifdef CAIRO_HAS_PDF_SURFACE
+    case PDF:
+      surface = PdfSurface::create(filename, m_width / mmpt, m_height / mmpt);
+      break;
+#endif
+    default:
+      return false;
+  }
+
+  Cairo::RefPtr<Cairo::Context> context = Cairo::Context::create(surface);
+  apply(context);
+  surface->finish();
+
+  return true;
+}
+
+/* vim: set et sw=2 ts=2: */