1 /* 2 * Copyright © 2013 Intel Corporation 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice (including the next 12 * paragraph) shall be included in all copies or substantial portions of the 13 * Software. 14 * 15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER 19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING 20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS 21 * IN THE SOFTWARE. 22 * 23 */ 24 25 #include "config.h" 26 27 #include <X11/Xlib.h> 28 #ifdef HAVE_XRANDR 29 #include <X11/extensions/Xrandr.h> 30 #endif 31 #include <string.h> 32 #include <stdio.h> 33 #include <stdlib.h> 34 35 #include "position.h" 36 #include "../overlay.h" 37 38 static enum position get_position(struct config *config) 39 { 40 const char *v = config_get_value(config, "window", "position"); 41 if (v == NULL) 42 return POS_UNSET; 43 44 if (strcmp(v, "top-left") == 0) 45 return POS_TOP_LEFT; 46 47 if (strcmp(v, "top-centre") == 0) 48 return POS_TOP_CENTRE; 49 50 if (strcmp(v, "top-right") == 0) 51 return POS_TOP_RIGHT; 52 53 if (strcmp(v, "middle-left") == 0) 54 return POS_MIDDLE_LEFT; 55 56 if (strcmp(v, "middle-centre") == 0) 57 return POS_MIDDLE_CENTRE; 58 59 if (strcmp(v, "middle-right") == 0) 60 return POS_MIDDLE_RIGHT; 61 62 if (strcmp(v, "bottom-left") == 0) 63 return POS_BOTTOM_LEFT; 64 65 if (strcmp(v, "bottom-centre") == 0) 66 return POS_BOTTOM_CENTRE; 67 68 if (strcmp(v, "bottom-right") == 0) 69 return POS_BOTTOM_RIGHT; 70 71 return POS_UNSET; 72 } 73 74 static void screen_size(Display *dpy, struct config *config, 75 int *scr_x, int *scr_y, int *scr_width, int *scr_height) 76 { 77 Screen *scr; 78 79 #ifdef HAVE_XRANDR 80 const char *crtc; 81 82 crtc = config_get_value(config, "x11", "crtc"); 83 if (crtc) { 84 XRRScreenResources *res; 85 int i = atoi(crtc); 86 int ok = 0; 87 88 res = XRRGetScreenResourcesCurrent(dpy, DefaultRootWindow(dpy)); 89 if (res) { 90 if (i < res->ncrtc) { 91 XRRCrtcInfo *info = XRRGetCrtcInfo (dpy, res, res->crtcs[i]); 92 if (info) { 93 *scr_x = info->x; 94 *scr_y = info->y; 95 *scr_width = info->width; 96 *scr_height = info->height; 97 ok = 1; 98 XRRFreeCrtcInfo(info); 99 } 100 } 101 XRRFreeScreenResources(res); 102 } 103 if (ok) 104 return; 105 } 106 #endif 107 108 scr = ScreenOfDisplay(dpy, DefaultScreen(dpy)); 109 *scr_x = *scr_y = 0; 110 *scr_width = scr->width; 111 *scr_height = scr->height; 112 } 113 114 enum position 115 x11_position(Display *dpy, int width, int height, 116 struct config *config, 117 int *x, int *y, int *w, int *h) 118 { 119 enum position position = POS_UNSET; 120 const char *geometry; 121 122 *x = *y = 0; 123 *w = width; 124 *h = height; 125 126 geometry = config_get_value(config, "window", "geometry"); 127 if (geometry) { 128 sscanf(geometry, "%dx%d+%d+%d", w, h, x, y); 129 if (*w < width/2) 130 *w = width/2; 131 if (*h < height/2) 132 *h = height/2; 133 } else { 134 int scr_x, scr_y, scr_width, scr_height; 135 136 screen_size(dpy, config, &scr_x, &scr_y, &scr_width, &scr_height); 137 position = get_position(config); 138 139 if (position != POS_UNSET) { 140 if (width == -1) { 141 *w = scr_width; 142 switch (position & 7) { 143 default: 144 case 0: 145 case 2: *w >>= 1; break; 146 } 147 } 148 149 if (height == -1) { 150 *h = scr_height; 151 switch ((position >> 4) & 7) { 152 default: 153 case 0: 154 case 2: *h >>= 1; break; 155 } 156 } 157 } 158 159 geometry = config_get_value(config, "window", "size"); 160 if (geometry) { 161 int size_w, size_h; 162 float scale_x, scale_y; 163 164 if (sscanf(geometry, "%dx%d", &size_w, &size_h) == 2) { 165 *w = size_w; 166 *h = size_h; 167 } else if (sscanf(geometry, "%f%%x%f%%", &scale_x, &scale_y) == 2) { 168 if (*w != -1) 169 *w = (*w * scale_x) / 100.; 170 if (*h != -1) 171 *h = (*h * scale_y) / 100.; 172 } else if (sscanf(geometry, "%f%%", &scale_x) == 1) { 173 if (*w != -1) 174 *w = (*w * scale_x) / 100.; 175 if (*h != -1) 176 *h = (*h * scale_x) / 100.; 177 } 178 if ((unsigned)*w < width/2) 179 *w = width/2; 180 if ((unsigned)*h < height/2) 181 *h = height/2; 182 } 183 184 if ((unsigned)*w > scr_width) 185 *w = scr_width; 186 187 if ((unsigned)*h > scr_height) 188 *h = scr_height; 189 190 if (position != POS_UNSET) { 191 switch (position & 7) { 192 default: 193 case 0: *x = 0; break; 194 case 1: *x = (scr_width - *w)/2; break; 195 case 2: *x = scr_width - *w; break; 196 } 197 198 switch ((position >> 4) & 7) { 199 default: 200 case 0: *y = 0; break; 201 case 1: *y = (scr_height - *h)/2; break; 202 case 2: *y = scr_height - *h; break; 203 } 204 } 205 206 *x += scr_x; 207 *y += scr_y; 208 } 209 210 return position; 211 } 212