src/hid/common/extents.c

   1 /* $Id$ */
   2
   3 #ifdef HAVE_CONFIG_H
   4 #include "config.h"
   5 #endif
   6
   7 #include <stdio.h>
   8 #include <stdlib.h>
   9 #include <string.h>
  10 #include <math.h>
  11
  12 #include "global.h"
  13 #include "data.h"
  14
  15 #include "hid.h"
  16 #include "../hidint.h"
  17 #include "hid/common/draw_helpers.h"
  18
  19 #ifdef HAVE_LIBDMALLOC
  20 #include <dmalloc.h>
  21 #endif
  22
  23 RCSID ("$Id$");
  24
  25 #ifndef MAXINT
  26 #define MAXINT (((unsigned int)(~0))>>1)
  27 #endif
  28
  29 static BoxType box;
  30
  31
  32 typedef struct hid_gc_struct
  33 {
  34   int width;
  35 } hid_gc_struct;
  36
  37 static int
  38 extents_set_layer (const char *name, int group, int empty)
  39 {
  40   int idx = group;
  41   if (idx >= 0 && idx < max_layer)
  42     {
  43       idx = PCB->LayerGroups.Entries[idx][0];
  44     }
  45   if (idx >= 0 && idx < max_layer + 2)
  46     return 1;
  47   if (idx < 0)
  48     {
  49       switch (SL_TYPE (idx))
  50         {
  51         case SL_INVISIBLE:
  52         case SL_MASK:
  53         case SL_ASSY:
  54           return 0;
  55         case SL_SILK:
  56         case SL_PDRILL:
  57         case SL_UDRILL:
  58           return 1;
  59         }
  60     }
  61   return 0;
  62 }
  63
  64 static hidGC
  65 extents_make_gc (void)
  66 {
  67   hidGC rv = malloc (sizeof (hid_gc_struct));
  68   memset (rv, 0, sizeof (hid_gc_struct));
  69   return rv;
  70 }
  71
  72 static void
  73 extents_destroy_gc (hidGC gc)
  74 {
  75   free (gc);
  76 }
  77
  78 static void
  79 extents_use_mask (int use_it)
  80 {
  81 }
  82
  83 static void
  84 extents_set_color (hidGC gc, const char *name)
  85 {
  86 }
  87
  88 static void
  89 extents_set_line_cap (hidGC gc, EndCapStyle style)
  90 {
  91 }
  92
  93 static void
  94 extents_set_line_width (hidGC gc, int width)
  95 {
  96   gc->width = width;
  97 }
  98
  99 static void
 100 extents_set_draw_xor (hidGC gc, int xor)
 101 {
 102 }
 103
 104 static void
 105 extents_set_draw_faded (hidGC gc, int faded)
 106 {
 107 }
 108
 109 static void
 110 extents_set_line_cap_angle (hidGC gc, int x1, int y1, int x2, int y2)
 111 {
 112 }
 113
 114 #define PEX(x,w) if (box.X1 > (x)-(w)) box.X1 = (x)-(w); \
 115         if (box.X2 < (x)+(w)) box.X2 = (x)+(w)
 116 #define PEY(y,w) if (box.Y1 > (y)-(w)) box.Y1 = (y)-(w); \
 117         if (box.Y2 < (y)+(w)) box.Y2 = (y)+(w)
 118
 119 static void
 120 extents_draw_line (hidGC gc, int x1, int y1, int x2, int y2)
 121 {
 122   PEX (x1, gc->width);
 123   PEY (y1, gc->width);
 124   PEX (x2, gc->width);
 125   PEY (y2, gc->width);
 126 }
 127
 128 static void
 129 extents_draw_arc (hidGC gc, int cx, int cy, int width, int height,
 130                   int start_angle, int end_angle)
 131 {
 132   /* Naive but good enough.  */
 133   PEX (cx, width + gc->width);
 134   PEY (cy, height + gc->width);
 135 }
 136
 137 static void
 138 extents_draw_rect (hidGC gc, int x1, int y1, int x2, int y2)
 139 {
 140   PEX (x1, gc->width);
 141   PEY (y1, gc->width);
 142   PEX (x2, gc->width);
 143   PEY (y2, gc->width);
 144 }
 145
 146 static void
 147 extents_fill_circle (hidGC gc, int cx, int cy, int radius)
 148 {
 149   PEX (cx, radius);
 150   PEY (cy, radius);
 151 }
 152
 153 static void
 154 extents_fill_polygon (hidGC gc, int n_coords, int *x, int *y)
 155 {
 156   int i;
 157   for (i = 0; i < n_coords; i++)
 158     {
 159       PEX (x[i], 0);
 160       PEY (y[i], 0);
 161     }
 162 }
 163
 164 static void
 165 extents_fill_rect (hidGC gc, int x1, int y1, int x2, int y2)
 166 {
 167   PEX (x1, 0);
 168   PEY (y1, 0);
 169   PEX (x2, 0);
 170   PEY (y2, 0);
 171 }
 172
 173 static HID extents_hid = {
 174   sizeof (HID),
 175   "extents-extents",
 176   "used to calculate extents",
 177   0,                            /* gui */
 178   0,                            /* printer */
 179   0,                            /* exporter */
 180   1,                            /* poly before */
 181   0,                            /* poly after */
 182   0,                            /* poly dicer */
 183
 184   0 /* extents_get_export_options */ ,
 185   0 /* extents_do_export */ ,
 186   0 /* extents_parse_arguments */ ,
 187
 188   0 /* extents_invalidate_wh */ ,
 189   0 /* extents_invalidate_lr */ ,
 190   0 /* extents_invalidate_all */ ,
 191   extents_set_layer,
 192   extents_make_gc,
 193   extents_destroy_gc,
 194   extents_use_mask,
 195   extents_set_color,
 196   extents_set_line_cap,
 197   extents_set_line_width,
 198   extents_set_draw_xor,
 199   extents_set_draw_faded,
 200   extents_set_line_cap_angle,
 201   extents_draw_line,
 202   extents_draw_arc,
 203   extents_draw_rect,
 204   extents_fill_circle,
 205   extents_fill_polygon,
 206   common_fill_pcb_polygon,
 207   0 /* extents_thindraw_pcb_polygon */,
 208   extents_fill_rect,
 209
 210   0 /* extents_calibrate */ ,
 211   0 /* extents_shift_is_pressed */ ,
 212   0 /* extents_control_is_pressed */ ,
 213   0 /* extents_get_coords */ ,
 214   0 /* extents_set_crosshair */ ,
 215   0 /* extents_add_timer */ ,
 216   0 /* extents_stop_timer */ ,
 217   0 /* extents_watch_file */ ,
 218   0 /* extents_unwatch_file */ ,
 219   0 /* extents_add_block_hook */ ,
 220   0 /* extents_stop_block_hook */ ,
 221
 222   0 /* extents_log */ ,
 223   0 /* extents_logv */ ,
 224   0 /* extents_confirm_dialog */ ,
 225   0 /* extents_close_confirm_dialog */ ,
 226   0 /* extents_report_dialog */ ,
 227   0 /* extents_prompt_for */ ,
 228   0 /* extents_attribute_dialog */ ,
 229   0 /* extents_show_item */ ,
 230   0                             /* extents_beep */
 231 };
 232
 233 BoxType *
 234 hid_get_extents (void *item)
 235 {
 236   BoxType region;
 237
 238   box.X1 = MAXINT;
 239   box.Y1 = MAXINT;
 240   box.X2 = -MAXINT;
 241   box.Y2 = -MAXINT;
 242
 243   region.X1 = -MAXINT;
 244   region.Y1 = -MAXINT;
 245   region.X2 = MAXINT;
 246   region.Y2 = MAXINT;
 247   hid_expose_callback (&extents_hid, &region, item);
 248
 249   return &box;
 250 }