First commit

MLV/mouse.c

@@ -0,0 +1,139 @@
+/*
+ *   This file is part of the MLV Library.
+ *
+ *   Copyright (C) 2010,2011,2012 Adrien Boussicault, Marc Zipstein
+ *
+ *
+ *    This Library is free software: you can redistribute it and/or modify
+ *    it under the terms of the GNU General Public License as published by
+ *    the Free Software Foundation, either version 3 of the License, or
+ *    (at your option) any later version.
+ *
+ *    This Library is distributed in the hope that it will be useful,
+ *    but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *    GNU General Public License for more details.
+ *
+ *    You should have received a copy of the GNU General Public License
+ *    along with this Library.  If not, see <http://www.gnu.org/licenses/>.
+ */
+
+#include "MLV_mouse.h"
+#include "MLV_event.h"
+#include "MLV_time.h"
+
+#ifndef MEMORY_DEBUG
+#include <SDL/SDL.h>
+#else
+#include "memory_debug.h"
+#endif
+
+#include "warning_error.h"
+
+#include "memory_management.h"
+
+void MLV_wait_mouse(int *x, int *y){
+	MLV_Button_state state;
+	MLV_Mouse_button mouse_button;
+
+	// We remove all existing event from the queue
+	MLV_flush_event_queue();
+
+	//We wait for a new mouse event
+	while(
+		(
+			MLV_wait_event(
+					NULL, NULL, NULL,
+					NULL, NULL,
+					x, y, &mouse_button,
+					&state
+			) != MLV_MOUSE_BUTTON
+		) ||
+		( mouse_button != MLV_BUTTON_LEFT ) ||
+		( state != MLV_PRESSED )
+	);
+};
+
+int MLV_wait_mouse_or_seconds(int *x, int *y, int seconds){
+	MLV_Button_state state;
+	MLV_Mouse_button mouse_button;
+
+	// We remove all existing event from the queue
+	MLV_flush_event_queue();
+
+	int time = MLV_get_time();
+
+	//We wait for a new mouse event
+	int resultat = 0;
+	int tmp_x, tmp_y;
+	while(
+		(	
+			resultat = 
+			(
+				MLV_wait_event_or_seconds(
+					NULL, NULL, NULL,
+					NULL, NULL,
+					&tmp_x, &tmp_y, &mouse_button,
+					&state,
+					seconds - ( MLV_get_time() - time )/1000
+				) != MLV_MOUSE_BUTTON
+			) ||
+			( mouse_button != MLV_BUTTON_LEFT ) ||
+			( state != MLV_PRESSED )
+		) && (
+			(MLV_get_time() - time) < seconds*1000
+		)
+	);
+	if( 
+		! resultat &&
+		mouse_button == MLV_BUTTON_LEFT &&
+		state == MLV_PRESSED
+	){
+		if( x ) *x = tmp_x;
+		if( y ) *y = tmp_y;
+	}
+	return !resultat;
+}
+
+const char* MLV_convert_mouse_button_to_string( MLV_Mouse_button button_code ){
+	switch( button_code ){
+		case MLV_BUTTON_LEFT:
+			return "MLV_BUTTON_LEFT";
+		case MLV_BUTTON_MIDDLE:
+			return "MLV_BUTTON_MIDDLE";
+		case MLV_BUTTON_RIGHT:
+			return "MLV_BUTTON_RIGHT";
+		default:
+			ERROR("Button code unexpected");
+	}
+	return NULL;
+}
+
+MLV_Mouse_button MLV_convert_string_to_mouse_button( const char* button_string ){
+	if( strcmp( button_string, "MLV_BUTTON_LEFT" )==0 ){
+		return MLV_BUTTON_LEFT;
+	}
+	if( strcmp( button_string, "MLV_BUTTON_MIDDLE" )==0 ){
+		return MLV_BUTTON_MIDDLE;
+	}
+	if( strcmp( button_string, "MLV_BUTTON_RIGHT" )==0 ){
+		return MLV_BUTTON_RIGHT;
+	}
+	ERROR("Button name unexpected");
+	return -1;
+}
+
+void MLV_get_mouse_position( int* x, int* y ){
+	SDL_PumpEvents();
+	SDL_GetMouseState(x,y);
+}
+
+MLV_Button_state MLV_get_mouse_button_state( MLV_Mouse_button mouse_button ){
+	SDL_PumpEvents();
+	if( SDL_GetMouseState(NULL,NULL) & SDL_BUTTON( mouse_button ) ){
+		return MLV_PRESSED;
+	}
+	return MLV_RELEASED;
+}
+
+