From 8713f704d371029df3c7b99390a672546b6e6d7d Mon Sep 17 00:00:00 2001
From: tissoire
Date: Tue, 15 May 2012 12:56:24 +0000
Subject: implement crop ivy command.

Currently, the outside treatment is dummy, i.e. once outside,
no events beside mouse up are transfered.
---
 src/ivypointer.c | 58 ++++++++++++++++++++++++++++++++++++++++++--------------
 1 file changed, 44 insertions(+), 14 deletions(-)

diff --git a/src/ivypointer.c b/src/ivypointer.c
index c365042..6a38165 100644
--- a/src/ivypointer.c
+++ b/src/ivypointer.c
@@ -63,6 +63,7 @@
 #include "getopt.h"
 
 #define REGEXP_CHANGE_GEOMETRY_SCREEN "^screen_geometry_event device_id=%s x0=(.*) y0=(.*) x1=(.*) y1=(.*)"
+#define REGEXP_CHANGE_CROP "^crop_event device_id=%s x0=(.*) y0=(.*) x1=(.*) y1=(.*)"
 #define REGEXP_LOCK_UNLOCK "^lock_event device_id=%s status=(lock|unlock)"
 
 #define REGEXP_MOVE "^TelepointerMotion Id=%s X=(.*) Y=(.*)"
@@ -100,8 +101,8 @@
 #define CHAMP_TIME_XINPUT_2 4
 #define CHAMP_PRESSURE_XINPUT_2 3
 
-#define CHAMP_X_WACOM_BUTTON_2 1
-#define CHAMP_Y_WACOM_BUTTON_2 2
+#define CHAMP_X_WACOM_BUTTON_2 3
+#define CHAMP_Y_WACOM_BUTTON_2 4
 
 #define TIME_CLICK 200
 #define TIME_BETWEEN_CLICK 200
@@ -280,6 +281,31 @@ static void CallbackScreen(IvyClientPtr app, void *user_data, int argc, char *ar
 }
 
 // --------------------------------------------------------------------------
+// Crop callback
+// --------------------------------------------------------------------------
+
+static void CallbackCrop(IvyClientPtr app, void *user_data, int argc, char *argv[]) {
+//	char *id = argv[0];
+	float x0 = atof(argv[1-device_input_id_given]);
+	float y0 = atof(argv[2-device_input_id_given]);
+	float x1 = atof(argv[3-device_input_id_given]);
+	float y1 = atof(argv[4-device_input_id_given]);
+	if (x1 > x0 && y1 > y0 ){
+		coords_input[0] = x0;
+		coords_input[1] = y0;
+		coords_input[2] = x1;
+		coords_input[3] = y1;
+		width_input  = coords_input[2]-coords_input[0];
+		height_input = coords_input[3]-coords_input[1];
+		horiz_ratio = width / width_input;
+		vert_ratio = height / height_input;
+		printf("crop : %f %f %f %f\n",x0, y0, x1, y1);
+	} else {
+		printf("bad coords received : %.2f,%.2f %.2f,%.2f\n",x0,y0,x1,y1);
+	}
+}
+
+// --------------------------------------------------------------------------
 // Lock/Unlock callback
 // --------------------------------------------------------------------------
 
@@ -301,8 +327,8 @@ static void CallbackMove (IvyClientPtr app, void *user_data, int argc, char *arg
 		// ignore outside events
 		return;
 	}
-	x = offsetx + x * horiz_ratio;
-	y = offsety + y * vert_ratio;
+	x = offsetx + (x - coords_input[0]) * horiz_ratio;
+	y = offsety + (y - coords_input[1]) * vert_ratio;
 //	printf("x = %f,y = %f\n",x,y);
 	old_x = x;
 	old_y = y;
@@ -322,8 +348,8 @@ static void CallbackDrag (IvyClientPtr app, void *user_data, int argc, char *arg
 		// ignore outside events
 		return;
 	}
-	x = offsetx + x * horiz_ratio;
-	y = offsety + y * vert_ratio;
+	x = offsetx + (x - coords_input[0]) * horiz_ratio;
+	y = offsety + (y - coords_input[1]) * vert_ratio;
 //	printf("x = %f,y = %f\n",x,y);
 	old_x = x;
 	old_y = y;
@@ -345,8 +371,8 @@ static void CallbackButton (IvyClientPtr app, void *user_data, int argc, char *a
 //	char *id = argv[0];
 	int b = atoi(argv[1-device_input_id_given]);
 	int press = atoi(argv[2-device_input_id_given]);
-	if (!valid(old_x,old_y)){
-		// ignore outside events
+	if (press && !valid(old_x,old_y)){
+		// ignore outside release events
 		return;
 	}
 	fakeMouseButton(b,press,0,0);
@@ -372,8 +398,8 @@ static void CallbackPointer (IvyClientPtr app, void *user_data, int argc, char *
 
 	if (!predictive_mode) {
 		// in predictive mode, we don't allow the geometry to be changed
-		x = offsetx + x * horiz_ratio;
-		y = offsety + y * vert_ratio;
+		x = offsetx + (x - coords_input[0]) * horiz_ratio;
+		y = offsety + (y - coords_input[1]) * vert_ratio;
 	}
 
 	if (!relative) {
@@ -474,8 +500,8 @@ static void CallbackButtonWacom (IvyClientPtr app, void *user_data, int argc, ch
 	int press = strcmp(argv[2-device_input_id_given],"up");
 	float x = atof(argv[champXButton]);
 	float y = atof(argv[champYButton]);
-	if (!valid(x,y)){
-		// ignore outside events
+	if (press && !valid(x,y)){
+		// ignore outside release events
 		return;
 	}
 
@@ -490,8 +516,8 @@ static void CallbackButtonXInput2 (IvyClientPtr app, void *user_data, int argc,
 	int press = !!strcmp(argv[2-device_input_id_given],"released");
 	float x = atof(argv[champXButton]);
 	float y = atof(argv[champYButton]);
-	if (!valid(x,y)){
-		// ignore outside events
+	if (press && !valid(x,y)){
+		// ignore outside release events
 		return;
 	}
 
@@ -752,6 +778,10 @@ int main(int argc, char *argv[]) {
 		printf("bound to %s\n",regexp);
 	}
 
+	sprintf(regexp, REGEXP_CHANGE_CROP, device_input_id);
+	ptrGeometry=IvyBindMsg(CallbackCrop,&ptrGeometry, REGEXP_CHANGE_CROP, device_input_id);
+	printf("bound to %s\n",regexp);
+
 	sprintf(regexp, REGEXP_LOCK_UNLOCK, device_input_id);
 	ptrLockUnlock=IvyBindMsg(CallbackLockUnlock,&ptrLockUnlock, REGEXP_LOCK_UNLOCK, device_input_id);
 	printf("bound to %s\n",regexp);
-- 
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