From e8865533148c9002f4b84b7b212556dcf444fcdd Mon Sep 17 00:00:00 2001
From: Yves Rizoud <yrizoud@gmail.com>
Date: Sun, 12 Dec 2010 18:55:55 +0000
Subject: [PATCH] Fix issue 401: Touchscreen adaptation for Caanoo and Wiz

git-svn-id: svn://pulkomandy.tk/GrafX2/trunk@1659 416bcca6-2ee7-4201-b75f-2eb2f807beb1
---
 src/operatio.c | 89 ++++++++++++++++++++++++++++++++------------------
 src/readini.c  |  7 ++++
 src/struct.h   |  1 +
 3 files changed, 66 insertions(+), 31 deletions(-)

diff --git a/src/operatio.c b/src/operatio.c
index a522be2f..a7b88e9d 100644
--- a/src/operatio.c
+++ b/src/operatio.c
@@ -1744,17 +1744,17 @@ void Compute_3_point_curve(short x1, short y1, short x4, short y4,
   float cx,cy; // Centre de (x1,y1) et (x4,y4)
   float bx,by; // Intersect. des dtes ((x1,y1),(x2,y2)) et ((x3,y3),(x4,y4))
 
-  cx=(float)(x1+x4)/2.0;           // P1*--_               Légende:
-  cy=(float)(y1+y4)/2.0;           //   ·   \·· P2         -_\|/ : courbe
-                                   //   ·    \ ·*·         * : point important
-  bx=cx+((8.0/3.0)*(Paintbrush_X-cx));//   ·     |   ··       · : pointillÚ
+  cx=(float)(x1+x4)/2.0;              // P1*--_               Legend:
+  cy=(float)(y1+y4)/2.0;              //   ·   \·· P2         -_\|/ : curve
+                                      //   ·    \ ·*·         * : important point
+  bx=cx+((8.0/3.0)*(Paintbrush_X-cx));//   ·     |   ··       · : dotted line
   by=cy+((8.0/3.0)*(Paintbrush_Y-cy));//   ·     |P    ··  B
-                                   // C *·····*·········*  P=Pos. du pinceau
-  *x2=Round((bx+x1)/2.0);          //   ·     |     ··     C=milieu de [P1,P4]
-  *y2=Round((by+y1)/2.0);          //   ·     |   ··       B=point tel que
-                                   //   ·    / ·*·         C->B=(8/3) * C->P
-  *x3=Round((bx+x4)/2.0);          //   ·  _/·· P3         P2=milieu de [P1,B]
-  *y3=Round((by+y4)/2.0);          // P4*--                P3=milieu de [P4,B]
+                                      // C *·····*·········*  P=Pencil position
+  *x2=Round((bx+x1)/2.0);             //   ·     |     ··     C=middle of [P1,P4]
+  *y2=Round((by+y1)/2.0);             //   ·     |   ··       B=point computed as
+                                      //   ·    / ·*·         C->B=(8/3) * C->P
+  *x3=Round((bx+x4)/2.0);             //   ·  _/·· P3         P2=middle of [P1,B]
+  *y3=Round((by+y4)/2.0);             // P4*--                P3=middle of [P4,B]
 }
 
 
@@ -1778,8 +1778,11 @@ void Curve_3_points_0_5(void)
 
   Compute_3_point_curve(x1,y1,x4,y4,&x2,&y2,&x3,&y3);
 
-  Hide_line_preview(x1,y1,x4,y4);
-  Draw_curve_preview(x1,y1,x2,y2,x3,y3,x4,y4,color);
+  if (!Config.Stylus_mode)
+  {
+    Hide_line_preview(x1,y1,x4,y4);
+    Draw_curve_preview(x1,y1,x2,y2,x3,y3,x4,y4,color);
+  }
 
   if ( (Config.Coords_rel) && (Menu_is_visible) )
   {
@@ -1798,17 +1801,19 @@ void Curve_3_points_0_5(void)
   Operation_push(y4);
   Operation_push(Paintbrush_X);
   Operation_push(Paintbrush_Y);
+  
+  if (Config.Stylus_mode)
+  {
+    Display_cursor();
+    while(!Mouse_K)
+      Get_input(20);
+    Hide_cursor();
+    
+    Hide_line_preview(x1,y1,x4,y4);
+  }
 }
 
-
-void Curve_3_points_0_11(void)
-//
-//  Opération   : OPERATION_3_POINTS_CURVE
-//  Click Souris: 0
-//  Taille_Pile : 11
-//
-//  Souris effacée: Non
-//
+void Curve_drag(void)
 {
   short x1,y1,x2,y2,x3,y3,x4,y4;
   short old_x,old_y;
@@ -1850,16 +1855,7 @@ void Curve_3_points_0_11(void)
   Operation_push(Paintbrush_X);
   Operation_push(Paintbrush_Y);
 }
-
-
-void Curve_3_points_12_11(void)
-//
-//  Opération   : OPERATION_3_POINTS_CURVE
-//  Click Souris: 1 ou 2
-//  Taille_Pile : 11
-//
-//  Souris effacée: Oui
-//
+void Curve_finalize(void)
 {
   short x1,y1,x2,y2,x3,y3,x4,y4;
   short old_x,old_y;
@@ -1890,6 +1886,37 @@ void Curve_3_points_12_11(void)
   Wait_end_of_click();
 }
 
+void Curve_3_points_0_11(void)
+//
+//  Opération   : OPERATION_3_POINTS_CURVE
+//  Click Souris: 0
+//  Taille_Pile : 11
+//
+//  Souris effacée: Non
+//
+{
+  if (!Config.Stylus_mode)
+    Curve_drag();
+  else
+    Curve_finalize();
+}
+
+
+void Curve_3_points_12_11(void)
+//
+//  Opération   : OPERATION_3_POINTS_CURVE
+//  Click Souris: 1 ou 2
+//  Taille_Pile : 11
+//
+//  Souris effacée: Oui
+//
+{
+  if (!Config.Stylus_mode)
+    Curve_finalize();
+  else
+    Curve_drag();
+}
+
 
 ///////////////////////////////////////////////////////////// OPERATION_AIRBRUSH
 
diff --git a/src/readini.c b/src/readini.c
index 57f3225d..6d1997df 100644
--- a/src/readini.c
+++ b/src/readini.c
@@ -432,6 +432,13 @@ int Load_INI(T_Config * conf)
   char   value_label[1024];
 
   Line_number_in_INI_file=0;
+  
+#if defined(__WIZ__) || defined(__CAANOO__)
+  conf->Stylus_mode = 1;
+#else
+  conf->Stylus_mode = 0;
+#endif
+
 
   // On alloue les zones de mémoire:
   buffer=(char *)malloc(1024);
diff --git a/src/struct.h b/src/struct.h
index fc655589..27b0dfe6 100644
--- a/src/struct.h
+++ b/src/struct.h
@@ -350,6 +350,7 @@ typedef struct
   byte Grid_XOR_color;                   ///< XOR value to apply for grid color.
   byte Right_click_colorpick;            ///< Boolean, true to enable a "tablet" mode, where RMB acts as instant colorpicker
   byte Sync_views;                       ///< Boolean, true when the Main and Spare should share their viewport settings.
+  byte Stylus_mode;                      ///< Boolean, true to tweak some tools (eg:Curve) for single-button stylus.
 } T_Config;
 
 // Structures utilisées pour les descriptions de pages et de liste de pages.