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annotate src/video/cocoa/SDL_cocoamouse.m @ 5151:5429daf5e3f9

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The DrawRect API is implemented using lines
author Sam Lantinga <slouken@libsdl.org>
date Tue, 01 Feb 2011 20:50:04 -0800
parents 2170edcdfbd0
children b530ef003506
rev   line source
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1 /*
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2 SDL - Simple DirectMedia Layer
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3 Copyright (C) 1997-2010 Sam Lantinga
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4
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5 This library is free software; you can redistribute it and/or
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6 modify it under the terms of the GNU Lesser General Public
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7 License as published by the Free Software Foundation; either
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8 version 2.1 of the License, or (at your option) any later version.
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9
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10 This library is distributed in the hope that it will be useful,
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11 but WITHOUT ANY WARRANTY; without even the implied warranty of
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12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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13 Lesser General Public License for more details.
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14
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15 You should have received a copy of the GNU Lesser General Public
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16 License along with this library; if not, write to the Free Software
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17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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18
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19 Sam Lantinga
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20 slouken@libsdl.org
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21 */
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22 #include "SDL_config.h"
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23
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24 #include "SDL_events.h"
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25 #include "SDL_cocoavideo.h"
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26
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27 #include "../../events/SDL_mouse_c.h"
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28
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29 void
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30 Cocoa_InitMouse(_THIS)
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31 {
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32 }
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33
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34 static int
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35 ConvertMouseButtonToSDL(int button)
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36 {
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37 switch (button)
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38 {
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39 case 0:
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40 return(SDL_BUTTON_LEFT); /* 1 */
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41 case 1:
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42 return(SDL_BUTTON_RIGHT); /* 3 */
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43 case 2:
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44 return(SDL_BUTTON_MIDDLE); /* 2 */
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45 }
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46 return button+1;
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47 }
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48
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49 void
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50 Cocoa_HandleMouseEvent(_THIS, NSEvent *event)
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51 {
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52 int i;
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53 NSPoint point = { 0, 0 };
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54 SDL_Window *window;
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55 SDL_Window *focus = SDL_GetMouseFocus();
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56
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57 /* See if there are any fullscreen windows that might handle this event */
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58 window = NULL;
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59 for (i = 0; i < _this->num_displays; ++i) {
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60 SDL_VideoDisplay *display = &_this->displays[i];
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61 SDL_Window *candidate = display->fullscreen_window;
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62
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63 if (candidate) {
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64 SDL_Rect bounds;
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65
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66 Cocoa_GetDisplayBounds(_this, display, &bounds);
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67 point = [NSEvent mouseLocation];
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68 point.x = point.x - bounds.x;
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69 point.y = CGDisplayPixelsHigh(kCGDirectMainDisplay) - point.y - bounds.y;
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70 if ((point.x >= 0 && point.x < candidate->w) &&
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71 (point.y >= 0 && point.y < candidate->h)) {
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72 /* This is it! */
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73 window = candidate;
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74 break;
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75 } else if (candidate == focus) {
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76 SDL_SetMouseFocus(NULL);
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77 }
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78 }
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79 }
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80
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81 if (!window) {
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82 return;
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83 }
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84
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85 switch ([event type]) {
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86 case NSLeftMouseDown:
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87 case NSOtherMouseDown:
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88 case NSRightMouseDown:
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89 SDL_SendMouseButton(window, SDL_PRESSED, ConvertMouseButtonToSDL([event buttonNumber]));
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90 break;
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91 case NSLeftMouseUp:
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92 case NSOtherMouseUp:
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93 case NSRightMouseUp:
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94 SDL_SendMouseButton(window, SDL_RELEASED, ConvertMouseButtonToSDL([event buttonNumber]));
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95 break;
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96 case NSScrollWheel:
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97 Cocoa_HandleMouseWheel(window, event);
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98 break;
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99 case NSLeftMouseDragged:
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100 case NSRightMouseDragged:
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101 case NSOtherMouseDragged: /* usually middle mouse dragged */
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102 case NSMouseMoved:
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103 SDL_SendMouseMotion(window, 0, (int)point.x, (int)point.y);
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104 break;
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105 default: /* just to avoid compiler warnings */
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106 break;
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107 }
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108 }
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109
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110 void
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111 Cocoa_HandleMouseWheel(SDL_Window *window, NSEvent *event)
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112 {
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113 float x = [event deltaX];
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114 float y = [event deltaY];
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115
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116 if (x > 0) {
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117 x += 0.9f;
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118 } else if (x < 0) {
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119 x -= 0.9f;
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120 }
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121 if (y > 0) {
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122 y += 0.9f;
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123 } else if (y < 0) {
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124 y -= 0.9f;
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125 }
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126 SDL_SendMouseWheel(window, (int)x, (int)y);
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127 }
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128
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129 void
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130 Cocoa_QuitMouse(_THIS)
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131 {
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132 }
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133
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134 /* vi: set ts=4 sw=4 expandtab: */