- Added automated little helpers to Sudoku

(Menu Difficulty->add helpers)
- Added example code for Wizard with the
  Tabs demo (STR #1564)


git-svn-id: file:///fltk/svn/fltk/branches/branch-1.1@5638 ea41ed52-d2ee-0310-a9c1-e6b18d33e121

CHANGES

@@ -1,5 +1,8 @@
 CHANGES IN FLTK 1.1.8
 
+	- Added automated little helpers to Sudoku 
+	- Added example code for Wizard with the
+	  Tabs demo (STR #1564)
 	- Optimized Fl_Tabs drawing for speed (STR #1520)
 	- OS X resource fork now obsolete (STR #1453)
 	- Added chapter 10 about multithreading (STR #1532, 

documentation/examples.html

@@ -416,6 +416,10 @@ The <tt>tabs</tt> tool was created with <i>fluid</i>. It tests
 correct hiding and redisplaying of tabs, navigation across tabs, 
 resize behavior, and no unneeded redrawing of invisible widgets.
 
+<P>The <tt>tabs</tt> application shows the <tt>Fl_Tabs</tt> widget
+on the left and the <tt>Fl_Wizard</tt> widget on the right side 
+for direct comparison of these two panel management widgets.
+
 <h3><a name="threads">threads</h3>
 FLTK can be used in a multithreading environment. There are some
 limitations, mostly due to the underlying operating system. 

src/fl_color.cxx

@@ -378,8 +378,8 @@ Fl_Color fl_contrast(Fl_Color fg, Fl_Color bg) {
   l2 = ((c2 >> 24) * 31 + ((c2 >> 16) & 255) * 61 + ((c2 >> 8) & 255) * 8) / 100;
 
   // Compare and return the contrasting color...
-  if ((l1 - l2) > 85) return fg;
-  else if ((l2 - l1) > 85) return fg;
+  if ((l1 - l2) > 90) return fg;
+  else if ((l2 - l1) > 90) return fg;
   else if (l2 > 127) return FL_BLACK;
   else return FL_WHITE;
 }

test/sudoku.cxx

@@ -175,6 +175,7 @@ class Sudoku : public Fl_Window {
   static void	check_cb(Fl_Widget *widget, void *);
   static void	close_cb(Fl_Widget *widget, void *);
   static void	diff_cb(Fl_Widget *widget, void *d);
+  static void	update_helpers_cb(Fl_Widget *, void *);
   static void	help_cb(Fl_Widget *, void *);
   static void	new_cb(Fl_Widget *widget, void *);
   static void	reset_cb(Fl_Widget *widget, void *);
@@ -196,6 +197,7 @@ class Sudoku : public Fl_Window {
   void		resize(int X, int Y, int W, int H);
   void		save_game();
   void		solve_game();
+  void	        update_helpers();
 };
 
 
@@ -642,7 +644,8 @@ Sudoku::Sudoku()
     { "&Easy", 0, diff_cb, (void *)"0", FL_MENU_RADIO },
     { "&Medium", 0, diff_cb, (void *)"1", FL_MENU_RADIO },
     { "&Hard", 0, diff_cb, (void *)"2", FL_MENU_RADIO },
-    { "&Impossible", 0, diff_cb, (void *)"3", FL_MENU_RADIO },
+    { "&Impossible", 0, diff_cb, (void *)"3", FL_MENU_RADIO | FL_MENU_DIVIDER },
+    { "&Update Helpers", 0, update_helpers_cb, 0, 0 },
     { 0 },
     { "&Help", 0, 0, 0, FL_SUBMENU },
     { "&About Sudoku", FL_F + 1, help_cb, 0, 0 },
@@ -860,6 +863,63 @@ Sudoku::diff_cb(Fl_Widget *widget, void *d) {
   }
 }
 
+// Update the little marker numbers in all cells
+void
+Sudoku::update_helpers_cb(Fl_Widget *widget, void *) {
+  Sudoku *s = (Sudoku *)(widget->window() ? widget->window() : widget);
+  s->update_helpers();
+}
+
+void
+Sudoku::update_helpers() {
+  int i, j, k;
+  // first we delete any entries that the user may have made
+  for (i=0; i<9; i++) {
+    for (j=0; j<9; j++) {
+      SudokuCell *cell = grid_cells_[i][j];
+      for (k = 0; k < 8; k++) {
+        cell->test_value(0, k);
+      }
+    }
+  }
+  // now go through all cells and find out, what we can not be
+  for (i=0; i<81; i++) {
+    char taken[10] = { 0 };
+    // find our destination cell
+    int row = i/9;
+    int col = i%9;
+    SudokuCell *dst_cell = grid_cells_[row][col];
+    if (dst_cell->value()) continue;
+    // find all values already taken in this row
+    for (j=0; j<9; j++) {
+      SudokuCell *cell = grid_cells_[row][j];
+      int v = cell->value();
+      if (v) taken[v] = 1;
+    }
+    // find all values already taken in this column
+    for (j=0; j<9; j++) {
+      SudokuCell *cell = grid_cells_[j][col];
+      int v = cell->value();
+      if (v) taken[v] = 1;
+    }
+    // now find all values already taken in this sqare
+    int ro = (row/3) * 3;
+    int co = (col/3) * 3;
+    for (j=0; j<3; j++) {
+      for (k=0; k<3; k++) {
+        SudokuCell *cell = grid_cells_[ro+j][co+k];
+        int v = cell->value();
+        if (v) taken[v] = 1;
+      }
+    }
+    // transfer our findings to the markers
+    for (k = 1, j = 0; k <= 9; k++) {
+      if (!taken[k])
+        dst_cell->test_value(k, j++);
+    }
+  }
+}
+
 
 // Show the on-line help...
 void

test/tabs.fl

@@ -4,139 +4,285 @@ header_name {.h}
 code_name {.cxx}
 Function {} {open
 } {
-  Fl_Window foo_window {open
-    xywh {423 205 320 331} type Double resizable visible
+  Fl_Window foo_window {
+    label {Comparison of Fl_Tab (left) vs. Fl_Wizard (right)} open
+    xywh {423 205 642 337} type Double resizable visible
   } {
-    Fl_Tabs {} {open
-      tooltip {the various index cards test different aspects of the Fl_Tabs widget} xywh {10 10 300 200} selection_color 4 labelcolor 7 resizable
+    Fl_Box {} {
+      label {class Fl_Tabs}
+      xywh {95 5 130 30} labeltype ENGRAVED_LABEL labelfont 1
+    }
+    Fl_Tabs {} {
+      tooltip {the various index cards test different aspects of the Fl_Tabs widget} xywh {10 40 300 200} selection_color 4 labelcolor 7 resizable
     } {
       Fl_Group {} {
         label Label1 open
-        tooltip {this Tab tests correct keyboard navigation between text input fields} xywh {10 30 300 180} selection_color 1 resizable
+        tooltip {this Tab tests correct keyboard navigation between text input fields} xywh {10 60 300 180} selection_color 1 resizable
       } {
         Fl_Input {} {
           label {input:}
-          tooltip {This is the first input field} xywh {60 50 240 40}
+          tooltip {This is the first input field} xywh {60 80 240 40}
         }
         Fl_Input {} {
           label {input2:}
-          xywh {60 90 240 30}
+          xywh {60 120 240 30}
           code0 {o->tooltip("");}
         }
         Fl_Input {} {
-          label {input3:} selected
-          xywh {60 120 240 80}
+          label {input3:}
+          xywh {60 150 240 80}
         }
       }
       Fl_Group {} {
         label tab2 open
-        tooltip {tab2 tests among other things the cooperation of modal windows and tabs} xywh {10 30 300 180} selection_color 2 hide
+        tooltip {tab2 tests among other things the cooperation of modal windows and tabs} xywh {10 60 300 180} selection_color 2 hide
       } {
         Fl_Button {} {
           label button1
           callback {fl_message("Test to see if this modal window prevents you from "
            "changing the tabs. It should.");}
-          xywh {20 60 100 30}
+          xywh {20 90 100 30}
           code0 {\#include <FL/fl_ask.H>}
         }
         Fl_Input {} {
           label {input in box2}
-          xywh {140 100 100 30}
+          xywh {140 130 100 30}
         }
         Fl_Button {} {
           label {This is stuff inside the Fl_Group "tab2"}
-          xywh {30 140 260 30}
+          xywh {30 170 260 30}
         }
         Fl_Button {} {
           label {Test event blocking by modal window}
           callback {fl_message("Make sure you cannot change the tabs while this modal window is up");}
-          xywh {30 170 260 30}
+          xywh {30 200 260 30}
           code0 {\#include <FL/fl_ask.H>}
         }
       }
       Fl_Group {} {
         label tab3 open
-        tooltip {tab3 checks for correct keyboard navigation} xywh {10 30 300 180} selection_color 3 hide
+        tooltip {tab3 checks for correct keyboard navigation} xywh {10 60 300 180} selection_color 3 hide
       } {
         Fl_Button {} {
           label button2
-          xywh {20 60 60 80}
+          xywh {20 90 60 80}
         }
         Fl_Button {} {
           label button
-          xywh {80 60 60 80}
+          xywh {80 90 60 80}
         }
         Fl_Button {} {
           label button
-          xywh {140 60 60 80}
+          xywh {140 90 60 80}
         }
       }
       Fl_Group {} {
         label tab4 open
-        tooltip {this tab show the issue of indicating a selcted tab if the tab layouts are very similar} xywh {10 30 300 180} selection_color 5 labelfont 2 hide
+        tooltip {this tab show the issue of indicating a selcted tab if the tab layouts are very similar} xywh {10 60 300 180} selection_color 5 labelfont 2 hide
       } {
         Fl_Button {} {
           label button2
-          xywh {20 50 60 110}
+          xywh {20 80 60 110}
         }
         Fl_Button {} {
           label button
-          xywh {80 50 60 110}
+          xywh {80 80 60 110}
         }
         Fl_Button {} {
           label button
-          xywh {140 50 60 110}
+          xywh {140 80 60 110}
         }
       }
       Fl_Group {} {
         label {     tab5      } open
-        tooltip {tab5 verifies if visibility requests are handled correctly} xywh {10 30 300 180} labeltype ENGRAVED_LABEL hide
+        tooltip {tab5 verifies if visibility requests are handled correctly} xywh {10 60 300 180} labeltype ENGRAVED_LABEL hide
       } {
         Fl_Button {} {
           label button2
-          tooltip {button2 has a different tooltp than tab5} xywh {20 45 60 80}
+          tooltip {button2 has a different tooltp than tab5} xywh {20 75 60 80}
         }
         Fl_Button {} {
           label button
-          xywh {90 45 60 80}
+          xywh {90 75 60 80}
         }
         Fl_Clock {} {
           label {Make sure this clock does not use processor time when this tab is hidden or window is iconized}
-          xywh {160 50 100 100} box OSHADOW_BOX color 238 selection_color 0 labelfont 8 labelsize 10 align 130
+          xywh {160 75 100 100} box OSHADOW_BOX color 238 selection_color 0 labelfont 8 labelsize 10 align 130
         }
         Fl_Group {} {open
-          xywh {20 145 40 55} box THIN_DOWN_BOX color 173 align 16
+          xywh {20 175 40 55} box THIN_DOWN_BOX color 173 align 16
           class Fl_Window
         } {}
         Fl_Group {} {
           label {subwindows:} open
-          xywh {65 145 40 55} box THIN_DOWN_BOX color 167
+          xywh {65 175 40 55} box THIN_DOWN_BOX color 167
           class Fl_Window
         } {}
         Fl_Group {} {open
-          xywh {110 145 40 55} box THIN_DOWN_BOX color 239 align 16
+          xywh {110 175 40 55} box THIN_DOWN_BOX color 239 align 16
           class Fl_Window
         } {}
       }
     }
+    Fl_Box {} {
+      label {class Fl_Wizard}
+      xywh {410 5 130 30} labeltype ENGRAVED_LABEL labelfont 1
+    }
+    Fl_Wizard wWizard {
+      xywh {325 60 300 180}
+    } {
+      Fl_Group {} {
+        label Label1 open
+        tooltip {this Tab tests correct keyboard navigation between text input fields} xywh {325 60 300 180} selection_color 1 resizable
+      } {
+        Fl_Input {} {
+          label {input:}
+          tooltip {This is the first input field} xywh {375 80 240 40}
+        }
+        Fl_Input {} {
+          label {input2:}
+          xywh {375 120 240 30}
+          code0 {o->tooltip("");}
+        }
+        Fl_Input {} {
+          label {input3:}
+          xywh {375 150 240 80}
+        }
+      }
+      Fl_Group {} {
+        label tab2 open
+        tooltip {tab2 tests among other things the cooperation of modal windows and tabs} xywh {325 60 300 180} selection_color 2 hide
+      } {
+        Fl_Button {} {
+          label button1
+          callback {fl_message("Test to see if this modal window prevents you from "
+           "changing the tabs. It should.");}
+          xywh {335 90 100 30}
+          code0 {\#include <FL/fl_ask.H>}
+        }
+        Fl_Input {} {
+          label {input in box2}
+          xywh {455 130 100 30}
+        }
+        Fl_Button {} {
+          label {This is stuff inside the Fl_Group "tab2"}
+          xywh {345 170 260 30}
+        }
+        Fl_Button {} {
+          label {Test event blocking by modal window}
+          callback {fl_message("Make sure you cannot change the tabs while this modal window is up");}
+          xywh {345 200 260 30}
+          code0 {\#include <FL/fl_ask.H>}
+        }
+      }
+      Fl_Group {} {
+        label tab3 open
+        tooltip {tab3 checks for correct keyboard navigation} xywh {325 60 300 180} selection_color 3 hide
+      } {
+        Fl_Button {} {
+          label button2
+          xywh {335 90 60 80}
+        }
+        Fl_Button {} {
+          label button
+          xywh {395 90 60 80}
+        }
+        Fl_Button {} {
+          label button
+          xywh {455 90 60 80}
+        }
+      }
+      Fl_Group {} {
+        label tab4 open
+        tooltip {this tab show the issue of indicating a selcted tab if the tab layouts are very similar} xywh {325 60 300 180} selection_color 5 labelfont 2 hide
+      } {
+        Fl_Button {} {
+          label button2
+          xywh {335 80 60 110}
+        }
+        Fl_Button {} {
+          label button
+          xywh {395 80 60 110}
+        }
+        Fl_Button {} {
+          label button
+          xywh {455 80 60 110}
+        }
+      }
+      Fl_Group {} {
+        label {     tab5      } open
+        tooltip {tab5 verifies if visibility requests are handled correctly} xywh {325 60 300 180} labeltype ENGRAVED_LABEL hide
+      } {
+        Fl_Button {} {
+          label button2
+          tooltip {button2 has a different tooltp than tab5} xywh {335 75 60 80}
+        }
+        Fl_Button {} {
+          label button
+          xywh {405 75 60 80}
+        }
+        Fl_Clock {} {
+          label {Make sure this clock does not use processor time when this tab is hidden or window is iconized}
+          xywh {475 75 100 100} box OSHADOW_BOX color 238 selection_color 0 labelfont 8 labelsize 10 align 130
+        }
+        Fl_Group {} {open
+          xywh {335 175 40 55} box THIN_DOWN_BOX color 173 align 16
+          class Fl_Window
+        } {}
+        Fl_Group {} {
+          label {subwindows:} open
+          xywh {380 175 40 55} box THIN_DOWN_BOX color 167
+          class Fl_Window
+        } {}
+        Fl_Group {} {open
+          xywh {425 175 40 55} box THIN_DOWN_BOX color 239 align 16
+          class Fl_Window
+        } {}
+      }
+    }
+    Fl_Group {} {
+      xywh {410 245 130 25}
+    } {
+      Fl_Button {} {
+        label {@|<}
+        callback {wWizard->value(wWizard->child(0));}
+        tooltip {go to first page [Home]} xywh {410 245 30 25} shortcut 0xff50
+      }
+      Fl_Button {} {
+        label {@<}
+        callback {wWizard->prev();} selected
+        tooltip {go to previous page [left arrow]} xywh {440 245 30 25} shortcut 0xff51
+      }
+      Fl_Button {} {
+        label {@>}
+        callback {wWizard->next();}
+        tooltip {go to next page in wizard [right arrow]} xywh {480 245 30 25} shortcut 0xff53
+      }
+      Fl_Button {} {
+        label {@>|}
+        callback {int last = wWizard->children()-1;
+wWizard->value(wWizard->child(last));}
+        tooltip {go to last page [End]} xywh {510 245 30 25} shortcut 0xff57
+      }
+    }
     Fl_Input {} {
       label {inputA:}
-      xywh {60 220 130 30}
+      xywh {60 255 130 25}
     }
     Fl_Input {} {
       label {inputB:}
-      xywh {60 250 250 30}
+      xywh {60 285 250 25}
     }
     Fl_Button {} {
       label cancel
       callback {exit(1);}
-      xywh {180 290 60 30}
+      xywh {475 295 70 30}
       code0 {\#include <stdlib.h>}
     }
     Fl_Return_Button {} {
       label OK
       callback {exit(0);}
-      xywh {250 290 60 30}
+      xywh {555 295 70 30}
       code0 {\#include <stdlib.h>}
     }
   }