Reorganized code to allow compilation with Fl_Device, Fl_Display but without Fl_Abstract_Printer

(may be useful for embarked devices)

git-svn-id: file:///fltk/svn/fltk/branches/branch-1.3@7330 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

1 files changed, 28 insertions, 147 deletions

diff --git a/src/Fl_Device.cxx b/src/Fl_Device.cxx
index 82e8b7b56..1fe885928 100644
--- a/src/Fl_Device.cxx
+++ b/src/Fl_Device.cxx
@@ -1,7 +1,7 @@
 //
 // "$Id$"
 //
-// implementation of Fl_Device and Fl_Abstract_Printer classes for the Fast Light Tool Kit (FLTK).
+// implementation of Fl_Device class for the Fast Light Tool Kit (FLTK).
 //
 // Copyright 2010 by Bill Spitzak and others.
 //
@@ -27,166 +27,44 @@
 
 #include <FL/Fl.H>
 #include <FL/Fl_Device.H>
-#include <FL/Fl_Printer.H>
-#include <FL/fl_draw.H>
+//#include <FL/fl_draw.H>
 #include <FL/Fl_Image.H>
 
-extern Fl_Device *fl_device;
-
+/** \brief Draws an Fl_RGB_Image object to the device. 
+ *
+ Specifies a bounding box for the image, with the origin (upper left-hand corner) of 
+ the image offset by the cx and cy arguments.
+ */
 void Fl_Device::draw(Fl_Pixmap *pxm,int XP, int YP, int WP, int HP, int cx, int cy)
 {
-  // presently, never gets called
+  pxm->draw(XP, YP, WP, HP, cx, cy);
 }
 
+/** \brief Draws an Fl_Bitmap object to the device. 
+ *
+ Specifies a bounding box for the image, with the origin (upper left-hand corner) of 
+ the image offset by the cx and cy arguments.
+ */
 void Fl_Device::draw(Fl_Bitmap *bm,int XP, int YP, int WP, int HP, int cx, int cy)
 {
-  // presently, never gets called
+  bm->draw(XP, YP, WP, HP, cx, cy);
 }
 
+/** \brief Draws an Fl_Pixmap object to the device. 
+ *
+ Specifies a bounding box for the image, with the origin (upper left-hand corner) of 
+ the image offset by the cx and cy arguments.
+ */
 void Fl_Device::draw(Fl_RGB_Image *rgb,int XP, int YP, int WP, int HP, int cx, int cy)
 {
-  // presently, never gets called
-}
-
-void Fl_Abstract_Printer::print_widget(Fl_Widget* widget, int delta_x, int delta_y) 
-{ 
-  int old_x, old_y, new_x, new_y, is_window;
-  if ( ! widget->visible() ) return;
-  is_window = (widget->as_window() != NULL);
-  widget->damage(FL_DAMAGE_ALL);
-  // set origin to the desired top-left position of the widget
-  origin(&old_x, &old_y);
-  new_x = old_x + delta_x;
-  new_y = old_y + delta_y;
-  if (!is_window) {
-    new_x -= widget->x();
-    new_y -= widget->y();
-  }
-  if (new_x != old_x || new_y != old_y) {
-    translate(new_x - old_x, new_y - old_y );
-  }
-  // if widget is a window, clip all drawings to the window area
-  if (is_window) fl_push_clip(0, 0, widget->w(), widget->h() );
-  // we do some trickery to recognize OpenGL windows and draw them via a plugin
-  int drawn_by_plugin = 0;
-  if (widget->as_gl_window()) {
-    Fl_Plugin_Manager pm("fltk:device");  
-    Fl_Device_Plugin *pi = (Fl_Device_Plugin*)pm.plugin("opengl.device.fltk.org");
-    if (pi) drawn_by_plugin = pi->print(this, widget, 0, 0);
-  }
-  if (!drawn_by_plugin) {
-    widget->draw();
-  }
-  if (is_window) fl_pop_clip();
-  // find subwindows of widget and print them
-  traverse(widget);
-  // reset origin to where it was
-  if (new_x != old_x || new_y != old_y) {
-    untranslate();
-  }
-}
-
-
-void Fl_Abstract_Printer::traverse(Fl_Widget *widget)
-{
-  Fl_Group *g = widget->as_group();
-  if (!g) return;
-  int n = g->children();
-  for (int i = 0; i < n; i++) {
-    Fl_Widget *c = g->child(i);
-    if ( !c->visible() ) continue;
-    if ( c->as_window() ) {
-      print_widget(c, c->x(), c->y());
-    }
-    else traverse(c);
-  }
-}
-
-void Fl_Abstract_Printer::origin(int *x, int *y)
-{
-  if (x) *x = x_offset;
-  if (y) *y = y_offset;
-}
-
-void Fl_Abstract_Printer::print_window_part(Fl_Window *win, int x, int y, int w, int h, int delta_x, int delta_y)
-{
-  int slice, width, offset, count = 0;
-  Fl_Device::display_device()->set_current();
-  Fl_Window *save_front = Fl::first_window();
-  win->show();
-  fl_gc = NULL;
-  Fl::check();
-  win->make_current();
-  uchar *image_data[20];
-#ifdef WIN32 // because of bug in StretchDIBits, vertically cut image in pieces of width slice
-  slice = 500;
-#else
-  slice = w;
-#endif
-  for ( offset = 0; offset < w; offset += slice) {
-    width = slice; 
-    if (offset + width > w) width = w - offset;
-    image_data[count++] = fl_read_image(NULL, x + offset, y, width, h);
-    }  
-  save_front->show();
-  this->set_current();
-  for ( int i = 0, offset = 0; i < count; i++, offset += slice) {
-    width = slice; 
-    if (offset + width > w) width = w - offset;
-    fl_draw_image(image_data[i], delta_x + offset, delta_y, width, h, 3);
-#ifdef __APPLE__
-    add_image(NULL, image_data[i]);
-#else
-    delete image_data[i];
-#endif
-  }
-}
-
-void Fl_Abstract_Printer::add_image(Fl_Image *image, const uchar *data)
-{
-  struct chain_elt *elt =  (struct chain_elt *)calloc(sizeof(struct chain_elt), 1);
-  elt->image = image;
-  elt->data = data;
-  if (image_list_) { elt->next = image_list_; }
-  image_list_ = elt;
-}
-
-void Fl_Abstract_Printer::delete_image_list()
-{
-  while(image_list_) {
-    struct chain_elt *next = image_list_->next;
-    if(image_list_->image) delete image_list_->image;
-    if (image_list_->data) delete (uchar*) image_list_->data; // msvc6 compilation fix
-    free(image_list_);
-    image_list_ = next;
-  }
-}
-
-Fl_Device *Fl_Abstract_Printer::set_current(void)
-{
-#ifdef __APPLE__
-  fl_gc = (CGContextRef)gc;
-#elif defined(WIN32)
-  fl_gc = (HDC)gc;
-#else
-  fl_gc = (_XGC*)gc;
-#endif
-  return this->Fl_Device::set_current();
+  rgb->draw(XP, YP, WP, HP, cx, cy);
 }
 
-
-int Fl_Abstract_Printer::start_job(int pagecount, int *frompage, int *topage) {return 1;}
-int Fl_Abstract_Printer::start_page (void) {return 1;}
-int Fl_Abstract_Printer::printable_rect(int *w, int *h) {return 1;}
-void Fl_Abstract_Printer::margins(int *left, int *top, int *right, int *bottom) {}
-void Fl_Abstract_Printer::origin(int x, int y) {}
-void Fl_Abstract_Printer::scale (float scale_x, float scale_y) {}
-void Fl_Abstract_Printer::rotate(float angle) {}
-int Fl_Abstract_Printer::end_page (void) {return 1;}
-void Fl_Abstract_Printer::end_job (void) {}
-void Fl_Abstract_Printer::translate(int x, int y) {}
-void Fl_Abstract_Printer::untranslate(void) {}
-
+/**
+ @brief Sets this device (display, printer, local file) as the target of future graphics calls.
+ *
+ @return  The current target device of graphics calls.
+ */
 Fl_Device *Fl_Device::set_current(void)
 {
   Fl_Device *current = fl_device;
@@ -194,6 +72,9 @@ Fl_Device *Fl_Device::set_current(void)
   return current;
 }
 
+/**
+ @brief    Returns the current target device of graphics calls.
+ */
 Fl_Device *Fl_Device::current(void)
 {
   return fl_device;