1 /*
2 SDL - Simple DirectMedia Layer
3 Copyright (C) 1997-2006 Sam Lantinga
4
5 This library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 This library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with this library; if not, write to the Free Software
17 Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
18
19 Sam Lantinga
20 slouken@libsdl.org
21 */
22 #include "SDL_config.h"
23
24 #include "SDL_mouse.h"
25 #include "../../events/SDL_events_c.h"
26 #include "../SDL_cursor_c.h"
27 #include "SDL_ph_mouse_c.h"
28
29 struct WMcursor
30 {
31 PhCursorDef_t *ph_cursor ;
32 };
33
ph_FreeWMCursor(_THIS,WMcursor * cursor)34 void ph_FreeWMCursor(_THIS, WMcursor *cursor)
35 {
36 if (window != NULL)
37 {
38 SDL_Lock_EventThread();
39
40 if (PtSetResource(window, Pt_ARG_CURSOR_TYPE, Ph_CURSOR_INHERIT, 0) < 0)
41 {
42 /* TODO: output error msg */
43 }
44
45 SDL_Unlock_EventThread();
46 }
47
48 SDL_free(cursor);
49 }
50
ph_CreateWMCursor(_THIS,Uint8 * data,Uint8 * mask,int w,int h,int hot_x,int hot_y)51 WMcursor *ph_CreateWMCursor(_THIS, Uint8 *data, Uint8 *mask, int w, int h, int hot_x, int hot_y)
52 {
53 WMcursor* cursor;
54 int clen, i;
55 unsigned char bit, databit, maskbit;
56
57 /* Allocate and initialize the cursor memory */
58 if ((cursor = (WMcursor*)SDL_malloc(sizeof(WMcursor))) == NULL)
59 {
60 SDL_OutOfMemory();
61 return(NULL);
62 }
63 SDL_memset(cursor,0,sizeof(WMcursor));
64
65 cursor->ph_cursor = (PhCursorDef_t *) SDL_malloc(sizeof(PhCursorDef_t) + 32*4*2);
66
67 if (cursor->ph_cursor == NULL)
68 {
69 SDL_SetError("ph_CreateWMCursor(): cursor malloc failed !\n");
70 return NULL;
71 }
72
73 SDL_memset(cursor->ph_cursor,0,(sizeof(PhCursorDef_t) + 32*4*2));
74
75 cursor->ph_cursor->hdr.type =Ph_RDATA_CURSOR;
76 cursor->ph_cursor->size1.x = (short)w;
77 cursor->ph_cursor->size1.y = (short)h;
78 cursor->ph_cursor->offset1.x = (short)hot_x;
79 cursor->ph_cursor->offset1.y = (short)hot_y;
80 cursor->ph_cursor->bytesperline1 = (char)w/8;
81 cursor->ph_cursor->color1 = Pg_WHITE;
82 cursor->ph_cursor->size2.x = (short)w;
83 cursor->ph_cursor->size2.y = (short)h;
84 cursor->ph_cursor->offset2.x = (short)hot_x;
85 cursor->ph_cursor->offset2.y = (short)hot_y;
86 cursor->ph_cursor->bytesperline2 = (char)w/8;
87 cursor->ph_cursor->color2 = Pg_BLACK;
88
89 clen = (w/8)*h;
90
91 /* Copy the mask and the data to different bitmap planes */
92 for (i=0; i<clen; ++i)
93 {
94 for (bit = 0; bit < 8; bit++)
95 {
96 databit = data[i] & (1 << bit);
97 maskbit = mask[i] & (1 << bit);
98
99 cursor->ph_cursor->images[i] |= (databit == 0) ? maskbit : 0;
100 /* If the databit != 0, treat it as a black pixel and
101 * ignore the maskbit (can't do an inverted color) */
102 cursor->ph_cursor->images[i+clen] |= databit;
103 }
104 }
105
106 /* #bytes following the hdr struct */
107 cursor->ph_cursor->hdr.len =sizeof(PhCursorDef_t) + clen*2 - sizeof(PhRegionDataHdr_t);
108
109 return (cursor);
110 }
111
ph_GetWMPhCursor(WMcursor * cursor)112 PhCursorDef_t ph_GetWMPhCursor(WMcursor *cursor)
113 {
114 return (*cursor->ph_cursor);
115 }
116
ph_ShowWMCursor(_THIS,WMcursor * cursor)117 int ph_ShowWMCursor(_THIS, WMcursor* cursor)
118 {
119 PtArg_t args[3];
120 int nargs = 0;
121
122 /* Don't do anything if the display is gone */
123 if (window == NULL)
124 {
125 return (0);
126 }
127
128 /* looks like photon can't draw mouse cursor in direct mode */
129 if ((this->screen->flags & SDL_FULLSCREEN) == SDL_FULLSCREEN)
130 {
131 /* disable the fake mouse in the fullscreen OpenGL mode */
132 if ((this->screen->flags & SDL_OPENGL) == SDL_OPENGL)
133 {
134 cursor=NULL;
135 }
136 else
137 {
138 return (0);
139 }
140 }
141
142 /* Set the photon cursor, or blank if cursor is NULL */
143 if (cursor!=NULL)
144 {
145 PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_BITMAP, 0);
146 /* Could set next to any PgColor_t value */
147 PtSetArg(&args[1], Pt_ARG_CURSOR_COLOR, Ph_CURSOR_DEFAULT_COLOR , 0);
148 PtSetArg(&args[2], Pt_ARG_BITMAP_CURSOR, cursor->ph_cursor, (cursor->ph_cursor->hdr.len + sizeof(PhRegionDataHdr_t)));
149 nargs = 3;
150 }
151 else /* Ph_CURSOR_NONE */
152 {
153 PtSetArg(&args[0], Pt_ARG_CURSOR_TYPE, Ph_CURSOR_NONE, 0);
154 nargs = 1;
155 }
156
157 SDL_Lock_EventThread();
158
159 if (PtSetResources(window, nargs, args) < 0 )
160 {
161 return (0);
162 }
163
164 SDL_Unlock_EventThread();
165
166 return (1);
167 }
168
169
ph_WarpWMCursor(_THIS,Uint16 x,Uint16 y)170 void ph_WarpWMCursor(_THIS, Uint16 x, Uint16 y)
171 {
172 short abs_x, abs_y;
173
174 SDL_Lock_EventThread();
175 PtGetAbsPosition( window, &abs_x, &abs_y );
176 PhMoveCursorAbs( PhInputGroup(NULL), x + abs_x, y + abs_y );
177 SDL_Unlock_EventThread();
178 }
179
180
ph_CheckMouseMode(_THIS)181 void ph_CheckMouseMode(_THIS)
182 {
183 /* If the mouse is hidden and input is grabbed, we use relative mode */
184 if ( !(SDL_cursorstate & CURSOR_VISIBLE) && (this->input_grab != SDL_GRAB_OFF))
185 {
186 mouse_relative = 1;
187 }
188 else
189 {
190 mouse_relative = 0;
191 }
192 }
193
194
ph_UpdateMouse(_THIS)195 void ph_UpdateMouse(_THIS)
196 {
197 PhCursorInfo_t phcursor;
198 short abs_x;
199 short abs_y;
200
201 /* Lock the event thread, in multi-threading environments */
202 SDL_Lock_EventThread();
203
204 /* synchronizing photon mouse cursor position and SDL mouse position, if cursor appears over window. */
205 PtGetAbsPosition(window, &abs_x, &abs_y);
206 PhQueryCursor(PhInputGroup(NULL), &phcursor);
207 if (((phcursor.pos.x >= abs_x) && (phcursor.pos.x <= abs_x + this->screen->w)) &&
208 ((phcursor.pos.y >= abs_y) && (phcursor.pos.y <= abs_y + this->screen->h)))
209 {
210 SDL_PrivateAppActive(1, SDL_APPMOUSEFOCUS);
211 SDL_PrivateMouseMotion(0, 0, phcursor.pos.x-abs_x, phcursor.pos.y-abs_y);
212 }
213 else
214 {
215 SDL_PrivateAppActive(0, SDL_APPMOUSEFOCUS);
216 }
217
218 /* Unlock the event thread, in multi-threading environments */
219 SDL_Unlock_EventThread();
220 }
221