From b68c113b7a5020ce0e0bb462fc8924e3739e7389 Mon Sep 17 00:00:00 2001
From: Johannes Hofmann <johannes.hofmann@gmx.de>
Date: Sat, 23 Oct 2004 17:57:14 +0000
Subject: reduce flicker

reduce flicker
---
 src/PSEditModel.H    |  3 ++-
 src/PSEditModel.cxx  | 13 +++++++---
 src/PSEditWidget.H   |  4 +--
 src/PSEditWidget.cxx | 72 ++++++++++++++++++++++++++++++++++++++++++++++------
 src/PSEditor.H       |  4 +--
 src/PSEditor.cxx     | 17 +++++++++++--
 src/Postscript.cxx   |  4 +--
 7 files changed, 97 insertions(+), 20 deletions(-)

(limited to 'src')

diff --git a/src/PSEditModel.H b/src/PSEditModel.H
index 2c94142..e601afc 100644
--- a/src/PSEditModel.H
+++ b/src/PSEditModel.H
@@ -1,5 +1,5 @@
 // 
-// "$Id: PSEditModel.H,v 1.3 2004/10/21 21:02:05 hofmann Exp $"
+// "$Id: PSEditModel.H,v 1.4 2004/10/23 19:57:14 hofmann Exp $"
 //
 // X11 header file for the Fast Light Tool Kit (FLTK).
 //
@@ -54,6 +54,7 @@ public:
   int set_cur_text(int x1, int y1, int p);
   int is_cur_text(PSEditText *t);
   PSEditText *get_text(int p);
+  PSEditText *get_cur_text();
   int replace_tag(char* tag, char* text);
   int ps_to_display_x(int x1);
   int ps_to_display_y(int y1);
diff --git a/src/PSEditModel.cxx b/src/PSEditModel.cxx
index a7542f2..368a667 100644
--- a/src/PSEditModel.cxx
+++ b/src/PSEditModel.cxx
@@ -1,5 +1,5 @@
 //
-// "$Id: PSEditModel.cxx,v 1.3 2004/10/21 21:02:05 hofmann Exp $"
+// "$Id: PSEditModel.cxx,v 1.4 2004/10/23 19:57:14 hofmann Exp $"
 //
 // PSEditWidget routines.
 //
@@ -94,13 +94,16 @@ void PSEditModel::new_text(int x1, int y1, const char *s, int size, int p) {
 }
 
 int PSEditModel::set_cur_text(int x1, int y1, int p) {
+  PSEditText *t;
+
   if (p < 0 || p >= max_pages) {
     return 1;
   }
   
   if (text[p]) {
-    cur_text = text[p]->get_match(x1, y1);
-    if (cur_text) {
+    t = text[p]->get_match(x1, y1);
+    if (t) {
+      cur_text = t;
       return 0;
     }
   }
@@ -111,6 +114,10 @@ int PSEditModel::is_cur_text(PSEditText *t) {
   return (t && t == cur_text);
 }
 
+PSEditText *PSEditModel::get_cur_text() {
+  return cur_text;
+}
+
 void PSEditModel::append_text(const char *s) {
   if (cur_text && s) {
     cur_text->append_text(s);
diff --git a/src/PSEditWidget.H b/src/PSEditWidget.H
index 5f196cd..1811972 100644
--- a/src/PSEditWidget.H
+++ b/src/PSEditWidget.H
@@ -1,5 +1,5 @@
 // 
-// "$Id: PSEditWidget.H,v 1.8 2004/10/21 19:55:36 hofmann Exp $"
+// "$Id: PSEditWidget.H,v 1.9 2004/10/23 19:57:14 hofmann Exp $"
 //
 // X11 header file for the Fast Light Tool Kit (FLTK).
 //
@@ -48,7 +48,7 @@ public:
   void new_text(int x1, int y1, const char *s);
   int set_cur_text(int x1, int y1);
   void append_text(const char *s);
-  void move(int x1, int y1);
+  void move(int x1, int y1, int last_x, int last_y);
   void rm_char();
   int reload();
   void set_cur_size(int s);
diff --git a/src/PSEditWidget.cxx b/src/PSEditWidget.cxx
index d8c9254..2eab468 100644
--- a/src/PSEditWidget.cxx
+++ b/src/PSEditWidget.cxx
@@ -1,5 +1,5 @@
 // 
-// "$Id: PSEditWidget.cxx,v 1.20 2004/10/21 21:02:05 hofmann Exp $"
+// "$Id: PSEditWidget.cxx,v 1.21 2004/10/23 19:57:14 hofmann Exp $"
 //
 // PSEditWidget routines.
 //
@@ -79,11 +79,24 @@ PSEditWidget::PSEditWidget(int X,int Y,int W, int H) : GsWidget(X, Y, W, H) {
 int PSEditWidget::next() {
   model->set_page(page);
   return GsWidget::next();
-}  
+}
 
 void PSEditWidget::new_text(int x1, int y1, const char *s, int p) {
+  PSEditText *t_old;
+  
+  t_old = model->get_cur_text();
+
   model->new_text(x1, y1, s, cur_size, p);
-  redraw();
+
+  fl_font(FL_HELVETICA, cur_size);
+  damage(4, x1 - 10, y1 - fl_height() - 20, 
+	 fl_width(s) + 20, fl_height() + 30);
+
+  if (t_old) {
+    fl_font(FL_HELVETICA, t_old->get_size());
+    damage(4, t_old->get_x() - 10, t_old->get_y() - fl_height() - 20, 
+	   fl_width(t_old->get_text()) + 20, fl_height() + 30);
+  }
 }
 
 void PSEditWidget::new_text(int x1, int y1, const char *s) {
@@ -91,26 +104,69 @@ void PSEditWidget::new_text(int x1, int y1, const char *s) {
 }
 
 int PSEditWidget::set_cur_text(int x1, int y1) {
+  PSEditText *t_new, *t_old;
+
+  t_old = model->get_cur_text();
+
   if (model->set_cur_text(x1, y1, page) == 0) {
-    redraw();
+
+    t_new = model->get_cur_text();
+
+    if (t_new) {
+      fl_font(FL_HELVETICA, t_new->get_size());
+      damage(4, t_new->get_x() - 10, t_new->get_y() - fl_height() - 20, 
+	     fl_width(t_new->get_text()) + 20, fl_height() + 30);
+    }
+    if (t_old) {
+      fl_font(FL_HELVETICA, t_old->get_size());
+      damage(4, t_old->get_x() - 10, t_old->get_y() - fl_height() - 20, 
+	     fl_width(t_old->get_text()) + 20, fl_height() + 30);
+    }
     return 0;
   }
   return 1;
 }
 
 void PSEditWidget::append_text(const char *s) {
+  PSEditText *t;
+
   model->append_text(s);
-  redraw();
+
+  t = model->get_cur_text();
+  if (t) {
+    fl_font(FL_HELVETICA, t->get_size());
+    damage(4, t->get_x() - 10, t->get_y() - fl_height() - 20, fl_width(t->get_text()) + 20, fl_height() + 30);
+  }
 }
 
-void PSEditWidget::move(int x1, int y1) {
+void PSEditWidget::move(int x1, int y1, int last_x, int last_y) {
+  PSEditText *t;
+
   model->move(x1, y1);
-  redraw();
+  t = model->get_cur_text();
+  if (t) {
+    fl_font(FL_HELVETICA, t->get_size());
+    damage(4, x1 - 10, y1 - fl_height() - 20, fl_width(t->get_text()) + 20, fl_height() + 30);
+    damage(4, last_x - 10, last_y - fl_height() - 20, fl_width(t->get_text()) + 20, fl_height() + 30);
+
+  }
 }
 
 void PSEditWidget::rm_char() {
+  PSEditText *t;
+  int width;
+
+  t = model->get_cur_text();
+  if (t) {
+    fl_font(FL_HELVETICA, t->get_size());
+    width = fl_width(t->get_text());
+  }
+
   model->rm_char();
-  redraw();
+  
+  if (t) {
+    damage(4, t->get_x() - 10, t->get_y() - fl_height() - 20, width + 20, fl_height() + 30);
+  }
 }
 
 
diff --git a/src/PSEditor.H b/src/PSEditor.H
index 10adee6..b60696b 100644
--- a/src/PSEditor.H
+++ b/src/PSEditor.H
@@ -1,5 +1,5 @@
 // 
-// "$Id: PSEditor.H,v 1.4 2004/10/12 20:52:23 hofmann Exp $"
+// "$Id: PSEditor.H,v 1.5 2004/10/23 19:57:14 hofmann Exp $"
 //
 // X11 header file for the Fast Light Tool Kit (FLTK).
 //
@@ -28,9 +28,9 @@
 
 class PSEditor : public PSEditWidget {
  private:
-  int mark_x, mark_y;
   int tmp_fd;
   int ps_level;
+  int x_last, y_last;
   int handle(int event);
 
 public: 
diff --git a/src/PSEditor.cxx b/src/PSEditor.cxx
index 5412119..d263360 100644
--- a/src/PSEditor.cxx
+++ b/src/PSEditor.cxx
@@ -1,5 +1,5 @@
 // 
-// "$Id: PSEditor.cxx,v 1.13 2004/10/21 21:02:05 hofmann Exp $"
+// "$Id: PSEditor.cxx,v 1.14 2004/10/23 19:57:14 hofmann Exp $"
 //
 // PSEditor routines.
 //
@@ -33,6 +33,8 @@ PSEditor::PSEditor(int X,int Y,int W, int H) : PSEditWidget(X, Y, W, H) {
 }
 
 int PSEditor::handle(int event) {
+  int mark_x, mark_y;
+
   switch(event) {
   case FL_PUSH:    
     if (Fl::event_button() == 1) {
@@ -41,6 +43,9 @@ int PSEditor::handle(int event) {
 	return 0;
       }
       
+      x_last = Fl::event_x()-x();
+      y_last = Fl::event_y()-y();
+   
       mark_x = Fl::event_x()-x();
       mark_y = Fl::event_y()-y();
 
@@ -58,9 +63,17 @@ int PSEditor::handle(int event) {
       Fl::paste(*this, 0);
       return 1;
     }
+
+    x_last = -1;
+    y_last = -1;
+
     break;
   case FL_DRAG:
-    move(Fl::event_x()-x(), Fl::event_y()-y());
+    move(Fl::event_x()-x(), Fl::event_y()-y(), x_last-x(), y_last-y());
+
+    x_last = Fl::event_x()-x();
+    y_last = Fl::event_y()-y();
+
     mod++;
     return 1;
     break;
diff --git a/src/Postscript.cxx b/src/Postscript.cxx
index 61021ce..654f8bd 100644
--- a/src/Postscript.cxx
+++ b/src/Postscript.cxx
@@ -1,5 +1,5 @@
 // 
-// "$Id: Postscript.cxx,v 1.10 2004/10/21 19:55:36 hofmann Exp $"
+// "$Id: Postscript.cxx,v 1.11 2004/10/23 19:57:14 hofmann Exp $"
 //
 // Postscript handling routines.
 //
@@ -291,7 +291,7 @@ int PSWriter::write_text(FILE *out, PSEditText *t) {
   
   s = t->get_text();
 
-  if (strcmp(s, "") != 0) {
+  if (strcmp(s, "") != 0 || t->get_tag() != NULL) {
     fprintf(out, size_format, t->get_size());
     fprintf(out, pos_format, 
 	    pse->ps_x(t->get_x()), 
-- 
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