source: trunk/src/testing/dim/devices/mouse.py @ 4

Revision 4, 6.1 KB checked in by ajaworski, 13 years ago (diff)

Added modified SAGE sources
Line 
1############################################################################
2#
3# DIM - A Direct Interaction Manager for SAGE
4# Copyright (C) 2007 Electronic Visualization Laboratory,
5# University of Illinois at Chicago
6#
7# All rights reserved.
8#
9# Redistribution and use in source and binary forms, with or without
10# modification, are permitted provided that the following conditions are met:
11#
12#  * Redistributions of source code must retain the above copyright
13#    notice, this list of conditions and the following disclaimer.
14#  * Redistributions in binary form must reproduce the above
15#    copyright notice, this list of conditions and the following disclaimer
16#    in the documentation and/or other materials provided with the distribution.
17#  * Neither the name of the University of Illinois at Chicago nor
18#    the names of its contributors may be used to endorse or promote
19#    products derived from this software without specific prior written permission.
20#
21# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR
25# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
26# EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
27# PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
28# PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
29# LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
30# NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
31# SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
32#
33# Direct questions, comments etc about SAGE UI to www.evl.uic.edu/cavern/forum
34#
35# Author: Ratko Jagodic
36#       
37############################################################################
38
39
40
41
42import device
43from globals import *
44import time
45from threading import Thread
46
47
48def makeNew(deviceId):
49    """ this is how we instantiate the device object from
50        the main program that loads this plugin """
51    return Mouse(deviceId)
52
53
54MOVE = 1
55CLICK = 2
56WHEEL = 3
57COLOR = 4
58
59LEFT=1
60RIGHT=2
61MIDDLE=3
62
63
64WHEEL_CLICK_TIME = 0.75  # seconds before there is a click event after wheel event
65
66
67class Mouse(device.Device):
68   
69    def __init__(self, deviceId):
70        device.Device.__init__(self, "mouse", deviceId, needPointer=True)
71       
72        # current state of the device
73        self.x = 0   # position in SAGE coords
74        self.y = 0   # position in SAGE coords
75        self.clickX = 0  # where the click happened
76        self.clickY = 0  # where the click happened
77
78        self.buttons = {}  #key=BTN_ID, value=True|False
79        self.buttons[0] = False
80        self.buttons[LEFT] = False
81        self.buttons[RIGHT] = False
82        self.buttons[MIDDLE] = False
83        self.lastBtn = 0
84
85##         self.lastWheelTime = time.time()
86##         self.wheelClickThread = Thread(target=self.postWheelUpClick)
87##         self.wheelClickThread.start()
88##         self.wheeling = False
89               
90
91 ##    def postWheelUpClick(self):
92##         while doRun():
93##             if (time.time() - self.lastWheelTime) > WHEEL_CLICK_TIME and self.wheeling:
94##                 forEvt = EVT_ZOOM
95##                 self.postEvtClick(self.x, self.y, 4, False, forEvt)
96##                 self.wheeling = False
97
98##             time.sleep(0.1)
99           
100
101    def onMessage(self, data, firstMsg=False):
102        tokens = data.strip().split()
103        msgCode = int(tokens[0])
104
105       
106        # click
107        if msgCode == CLICK:
108            btnId = int(tokens[1])
109            isDown = bool(int(tokens[2]))
110            forEvt = 0
111           
112            if self.buttons[btnId] != isDown:
113                self.buttons[btnId] = isDown
114                self.lastBtn = btnId
115
116                if isDown:
117                    self.clickX, self.clickY = self.x, self.y
118               
119                if btnId == LEFT:
120                    forEvt = EVT_PAN
121                elif btnId == RIGHT:
122                    forEvt = EVT_ROTATE
123                elif btnId == MIDDLE:
124                    forEvt = EVT_ZOOM
125
126                self.postEvtClick(self.x, self.y, btnId, isDown, forEvt)
127
128
129        elif msgCode == WHEEL:
130            pass
131##             forEvt = EVT_ZOOM
132##             numSteps = -1*int(tokens[1])
133
134##             if (time.time() - self.lastWheelTime) > WHEEL_CLICK_TIME:
135##                 self.wheeling = True
136##                 self.postEvtClick(self.x, self.y, 4, True, forEvt)
137               
138##             #self.postEvtAnalog3(self.clickX, self.clickY, self.x, self.y, numSteps*15, 0, 0)
139##             self.postEvtAnalog3(self.clickX, self.clickY, numSteps*15, 0, 0)
140##             self.lastWheelTime = time.time()
141
142       
143           
144        elif msgCode == MOVE:
145            x = float(tokens[1].strip())
146            y = float(tokens[2].strip())
147           
148            # always convert to SAGE coords first
149            x = self.bounds.getX() + int(round(float(x) * self.bounds.getWidth()))
150            y = self.bounds.getY() + int(round(float(y) * self.bounds.getHeight()))
151           
152            x,y = self.smooth(x,y)
153
154           
155            dx = dy = 0
156            if self.x != x or self.y != y:
157                dx = x - self.x ;  self.x = x
158                dy = y - self.y ;  self.y = y
159
160                if self.buttons[self.lastBtn]:
161                    if self.lastBtn == LEFT:
162                        self.postEvtAnalog1(self.clickX, self.clickY, dx, dy, 0)
163                    elif self.lastBtn == RIGHT:
164                        self.postEvtAnalog2(self.clickX, self.clickY, dx, dy, 0)
165                    elif self.lastBtn == MIDDLE:
166                        self.postEvtAnalog3(self.clickX, self.clickY, dx, dy, 0)
167                else:
168                    self.postEvtMove(self.x, self.y, dx, dy)
169                   
170                # move the pointer
171                if self.pointer: self.pointer.movePointer(self.x, self.y)       
172
173
174        elif msgCode == COLOR:
175            #if self.pointer: self.pointer.setColor(tokens[1], tokens[2], tokens[3])
176            pass
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