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annotate src/libvterm/src/vterm.c @ 20460:c15dd3da4f47 v8.2.0784

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patch 8.2.0784: libvterm code lags behind the upstream version Commit: https://github.com/vim/vim/commit/94d729cbe8f0f788d9d7539f733cff395e73b228 Author: Bram Moolenaar <Bram@vim.org> Date: Sun May 17 21:50:16 2020 +0200 patch 8.2.0784: libvterm code lags behind the upstream version Problem: Libvterm code lags behind the upstream version. Solution: Include revisions 730 - 733.
author Bram Moolenaar <Bram@vim.org>
date Sun, 17 May 2020 22:00:04 +0200
parents ffadba5f898c
children 9ad473b50471
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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1 #define DEFINE_INLINES
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2
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3 // vim: set sw=2 :
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4 #include "vterm_internal.h"
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5
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6 #include <stdio.h>
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7 #include <stdlib.h>
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8 #include <stdarg.h>
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9 #include <string.h>
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10
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11 #include "utf8.h"
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12
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13 ///////////////////
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14 // API functions //
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15 ///////////////////
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16
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17 static void *default_malloc(size_t size, void *allocdata UNUSED)
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18 {
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19 void *ptr = malloc(size);
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20 if(ptr)
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21 memset(ptr, 0, size);
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22 return ptr;
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23 }
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24
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25 static void default_free(void *ptr, void *allocdata UNUSED)
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26 {
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27 free(ptr);
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28 }
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29
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30 static VTermAllocatorFunctions default_allocator = {
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31 &default_malloc, // malloc
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32 &default_free // free
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33 };
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34
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35 VTerm *vterm_new(int rows, int cols)
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36 {
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37 return vterm_new_with_allocator(rows, cols, &default_allocator, NULL);
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38 }
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39
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40 VTerm *vterm_new_with_allocator(int rows, int cols, VTermAllocatorFunctions *funcs, void *allocdata)
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41 {
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42 // Need to bootstrap using the allocator function directly
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43 VTerm *vt = (*funcs->malloc)(sizeof(VTerm), allocdata);
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44
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45 if (vt == NULL)
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46 return NULL;
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47 vt->allocator = funcs;
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48 vt->allocdata = allocdata;
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49
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50 vt->rows = rows;
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51 vt->cols = cols;
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52
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53 vt->parser.state = NORMAL;
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54
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55 vt->parser.callbacks = NULL;
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56 vt->parser.cbdata = NULL;
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57
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58 vt->parser.strbuffer_len = 500; // should be able to hold an OSC string
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59 vt->parser.strbuffer_cur = 0;
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60 vt->parser.strbuffer = vterm_allocator_malloc(vt, vt->parser.strbuffer_len);
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61 if (vt->parser.strbuffer == NULL)
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62 {
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63 vterm_allocator_free(vt, vt);
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64 return NULL;
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65 }
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66
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67 vt->outfunc = NULL;
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68 vt->outdata = NULL;
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69
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70 vt->outbuffer_len = 200;
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71 vt->outbuffer_cur = 0;
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72 vt->outbuffer = vterm_allocator_malloc(vt, vt->outbuffer_len);
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73 if (vt->outbuffer == NULL)
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74 {
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75 vterm_allocator_free(vt, vt->parser.strbuffer);
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76 vterm_allocator_free(vt, vt);
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77 return NULL;
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78 }
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79
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80 vt->tmpbuffer_len = 64;
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81 vt->tmpbuffer = vterm_allocator_malloc(vt, vt->tmpbuffer_len);
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82
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83 return vt;
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84 }
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85
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86 void vterm_free(VTerm *vt)
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87 {
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88 if(vt->screen)
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89 vterm_screen_free(vt->screen);
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90
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91 if(vt->state)
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92 vterm_state_free(vt->state);
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93
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94 vterm_allocator_free(vt, vt->parser.strbuffer);
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95 vterm_allocator_free(vt, vt->outbuffer);
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96
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97 vterm_allocator_free(vt, vt);
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98 }
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99
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100 INTERNAL void *vterm_allocator_malloc(VTerm *vt, size_t size)
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101 {
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102 return (*vt->allocator->malloc)(size, vt->allocdata);
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103 }
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104
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105 /*
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106 * Free "ptr" unless it is NULL.
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107 */
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108 INTERNAL void vterm_allocator_free(VTerm *vt, void *ptr)
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109 {
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110 if (ptr)
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111 (*vt->allocator->free)(ptr, vt->allocdata);
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112 }
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113
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114 void vterm_get_size(const VTerm *vt, int *rowsp, int *colsp)
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115 {
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116 if(rowsp)
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117 *rowsp = vt->rows;
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118 if(colsp)
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119 *colsp = vt->cols;
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120 }
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121
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122 void vterm_set_size(VTerm *vt, int rows, int cols)
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123 {
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124 vt->rows = rows;
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125 vt->cols = cols;
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126
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127 if(vt->parser.callbacks && vt->parser.callbacks->resize)
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128 (*vt->parser.callbacks->resize)(rows, cols, vt->parser.cbdata);
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129 }
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130
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131 int vterm_get_utf8(const VTerm *vt)
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132 {
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133 return vt->mode.utf8;
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diff changeset
134 }
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parents:
diff changeset
135
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diff changeset
136 void vterm_set_utf8(VTerm *vt, int is_utf8)
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diff changeset
137 {
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diff changeset
138 vt->mode.utf8 = is_utf8;
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diff changeset
139 }
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diff changeset
140
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diff changeset
141 void vterm_output_set_callback(VTerm *vt, VTermOutputCallback *func, void *user)
c15dd3da4f47 patch 8.2.0784: libvterm code lags behind the upstream version
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diff changeset
142 {
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diff changeset
143 vt->outfunc = func;
c15dd3da4f47 patch 8.2.0784: libvterm code lags behind the upstream version
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diff changeset
144 vt->outdata = user;
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diff changeset
145 }
c15dd3da4f47 patch 8.2.0784: libvterm code lags behind the upstream version
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diff changeset
146
11621
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diff changeset
147 INTERNAL void vterm_push_output_bytes(VTerm *vt, const char *bytes, size_t len)
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diff changeset
148 {
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diff changeset
149 if(vt->outfunc) {
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diff changeset
150 (vt->outfunc)(bytes, len, vt->outdata);
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diff changeset
151 return;
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diff changeset
152 }
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diff changeset
153
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diff changeset
154 if(len > vt->outbuffer_len - vt->outbuffer_cur) {
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diff changeset
155 DEBUG_LOG("vterm_push_output_bytes(): buffer overflow; dropping output\n");
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diff changeset
156 return;
11621
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157 }
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diff changeset
158
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diff changeset
159 memcpy(vt->outbuffer + vt->outbuffer_cur, bytes, len);
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diff changeset
160 vt->outbuffer_cur += len;
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diff changeset
161 }
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diff changeset
162
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diff changeset
163 INTERNAL void vterm_push_output_vsprintf(VTerm *vt, const char *format, va_list args)
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164 {
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165 size_t len;
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166 #ifndef VSNPRINTF
17777
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167 // When vsnprintf() is not available (C90) fall back to vsprintf().
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168 char buffer[1024]; // 1Kbyte is enough for everybody, right?
11653
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diff changeset
169 #endif
11621
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170
11653
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diff changeset
171 #ifdef VSNPRINTF
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172 len = VSNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len, format, args);
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173 vterm_push_output_bytes(vt, vt->tmpbuffer, len);
11653
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diff changeset
174 #else
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diff changeset
175 len = vsprintf(buffer, format, args);
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diff changeset
176 vterm_push_output_bytes(vt, buffer, len);
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diff changeset
177 #endif
11621
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178 }
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diff changeset
179
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diff changeset
180 INTERNAL void vterm_push_output_sprintf(VTerm *vt, const char *format, ...)
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diff changeset
181 {
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diff changeset
182 va_list args;
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diff changeset
183 va_start(args, format);
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diff changeset
184 vterm_push_output_vsprintf(vt, format, args);
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diff changeset
185 va_end(args);
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diff changeset
186 }
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diff changeset
187
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diff changeset
188 INTERNAL void vterm_push_output_sprintf_ctrl(VTerm *vt, unsigned char ctrl, const char *fmt, ...)
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diff changeset
189 {
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diff changeset
190 size_t cur;
11621
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diff changeset
191 va_list args;
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diff changeset
192
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193 if(ctrl >= 0x80 && !vt->mode.ctrl8bit)
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diff changeset
194 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
195 ESC_S "%c", ctrl - 0x40);
11621
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diff changeset
196 else
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diff changeset
197 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
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diff changeset
198 "%c", ctrl);
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diff changeset
199 if(cur >= vt->tmpbuffer_len)
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diff changeset
200 return;
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diff changeset
201 vterm_push_output_bytes(vt, vt->tmpbuffer, cur);
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diff changeset
202
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diff changeset
203 va_start(args, fmt);
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diff changeset
204 vterm_push_output_vsprintf(vt, fmt, args);
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diff changeset
205 va_end(args);
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diff changeset
206 }
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diff changeset
207
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
208 INTERNAL void vterm_push_output_sprintf_dcs(VTerm *vt, const char *fmt, ...)
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diff changeset
209 {
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diff changeset
210 size_t cur;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
211 va_list args;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
Bram Moolenaar <Bram@vim.org>
parents: 18802
diff changeset
212
20460
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diff changeset
213 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
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diff changeset
214 vt->mode.ctrl8bit ? "\x90" : ESC_S "P"); // DCS
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diff changeset
215
20458
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diff changeset
216 if(cur >= vt->tmpbuffer_len)
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
217 return;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
218 vterm_push_output_bytes(vt, vt->tmpbuffer, cur);
11621
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diff changeset
219
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parents:
diff changeset
220 va_start(args, fmt);
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parents:
diff changeset
221 vterm_push_output_vsprintf(vt, fmt, args);
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parents:
diff changeset
222 va_end(args);
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parents:
diff changeset
223
20460
c15dd3da4f47 patch 8.2.0784: libvterm code lags behind the upstream version
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diff changeset
224 cur = SNPRINTF(vt->tmpbuffer, vt->tmpbuffer_len,
c15dd3da4f47 patch 8.2.0784: libvterm code lags behind the upstream version
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diff changeset
225 vt->mode.ctrl8bit ? "\x9C" : ESC_S "\\"); // ST
20458
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diff changeset
226 if(cur >= vt->tmpbuffer_len)
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Bram Moolenaar <Bram@vim.org>
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diff changeset
227 return;
ffadba5f898c patch 8.2.0783: libvterm code lags behind the upstream version
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diff changeset
228 vterm_push_output_bytes(vt, vt->tmpbuffer, cur);
11621
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diff changeset
229 }
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diff changeset
230
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parents:
diff changeset
231 size_t vterm_output_get_buffer_size(const VTerm *vt)
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parents:
diff changeset
232 {
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parents:
diff changeset
233 return vt->outbuffer_len;
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parents:
diff changeset
234 }
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
235
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parents:
diff changeset
236 size_t vterm_output_get_buffer_current(const VTerm *vt)
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parents:
diff changeset
237 {
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parents:
diff changeset
238 return vt->outbuffer_cur;
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parents:
diff changeset
239 }
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parents:
diff changeset
240
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parents:
diff changeset
241 size_t vterm_output_get_buffer_remaining(const VTerm *vt)
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parents:
diff changeset
242 {
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parents:
diff changeset
243 return vt->outbuffer_len - vt->outbuffer_cur;
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parents:
diff changeset
244 }
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parents:
diff changeset
245
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parents:
diff changeset
246 size_t vterm_output_read(VTerm *vt, char *buffer, size_t len)
b8299e742f41 patch 8.0.0693: no terminal emulator support
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parents:
diff changeset
247 {
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parents:
diff changeset
248 if(len > vt->outbuffer_cur)
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parents:
diff changeset
249 len = vt->outbuffer_cur;
b8299e742f41 patch 8.0.0693: no terminal emulator support
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parents:
diff changeset
250
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
251 memcpy(buffer, vt->outbuffer, len);
b8299e742f41 patch 8.0.0693: no terminal emulator support
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parents:
diff changeset
252
b8299e742f41 patch 8.0.0693: no terminal emulator support
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parents:
diff changeset
253 if(len < vt->outbuffer_cur)
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parents:
diff changeset
254 memmove(vt->outbuffer, vt->outbuffer + len, vt->outbuffer_cur - len);
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parents:
diff changeset
255
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parents:
diff changeset
256 vt->outbuffer_cur -= len;
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parents:
diff changeset
257
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parents:
diff changeset
258 return len;
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parents:
diff changeset
259 }
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parents:
diff changeset
260
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parents:
diff changeset
261 VTermValueType vterm_get_attr_type(VTermAttr attr)
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parents:
diff changeset
262 {
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
263 switch(attr) {
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parents:
diff changeset
264 case VTERM_ATTR_BOLD: return VTERM_VALUETYPE_BOOL;
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parents:
diff changeset
265 case VTERM_ATTR_UNDERLINE: return VTERM_VALUETYPE_INT;
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parents:
diff changeset
266 case VTERM_ATTR_ITALIC: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
267 case VTERM_ATTR_BLINK: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
268 case VTERM_ATTR_REVERSE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
269 case VTERM_ATTR_STRIKE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
270 case VTERM_ATTR_FONT: return VTERM_VALUETYPE_INT;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
271 case VTERM_ATTR_FOREGROUND: return VTERM_VALUETYPE_COLOR;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
272 case VTERM_ATTR_BACKGROUND: return VTERM_VALUETYPE_COLOR;
13531
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
273
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
274 case VTERM_N_ATTRS: return 0;
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
275 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
276 return 0; // UNREACHABLE
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
277 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
278
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
279 VTermValueType vterm_get_prop_type(VTermProp prop)
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
280 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
281 switch(prop) {
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
282 case VTERM_PROP_CURSORVISIBLE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
283 case VTERM_PROP_CURSORBLINK: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
284 case VTERM_PROP_ALTSCREEN: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
285 case VTERM_PROP_TITLE: return VTERM_VALUETYPE_STRING;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
286 case VTERM_PROP_ICONNAME: return VTERM_VALUETYPE_STRING;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
287 case VTERM_PROP_REVERSE: return VTERM_VALUETYPE_BOOL;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
288 case VTERM_PROP_CURSORSHAPE: return VTERM_VALUETYPE_INT;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
289 case VTERM_PROP_MOUSE: return VTERM_VALUETYPE_INT;
12076
ca4931a20f8c patch 8.0.0918: cannot get terminal window cursor shape or attributes
Christian Brabandt <cb@256bit.org>
parents: 11653
diff changeset
290 case VTERM_PROP_CURSORCOLOR: return VTERM_VALUETYPE_STRING;
13531
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
291
9f857e6310b6 patch 8.0.1639: libvterm code lags behind master
Christian Brabandt <cb@256bit.org>
parents: 13318
diff changeset
292 case VTERM_N_PROPS: return 0;
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
293 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
294 return 0; // UNREACHABLE
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
295 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
296
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
297 void vterm_scroll_rect(VTermRect rect,
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
298 int downward,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
299 int rightward,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
300 int (*moverect)(VTermRect src, VTermRect dest, void *user),
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
301 int (*eraserect)(VTermRect rect, int selective, void *user),
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
302 void *user)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
303 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
304 VTermRect src;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
305 VTermRect dest;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
306
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
307 if(abs(downward) >= rect.end_row - rect.start_row ||
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
308 abs(rightward) >= rect.end_col - rect.start_col) {
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
309 // Scroll more than area; just erase the lot
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
310 (*eraserect)(rect, 0, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
311 return;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
312 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
313
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
314 if(rightward >= 0) {
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
315 // rect: [XXX................]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
316 // src: [----------------]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
317 // dest: [----------------]
11621
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Christian Brabandt <cb@256bit.org>
parents:
diff changeset
318 dest.start_col = rect.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
319 dest.end_col = rect.end_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
320 src.start_col = rect.start_col + rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
321 src.end_col = rect.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
322 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
323 else {
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
324 // rect: [................XXX]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
325 // src: [----------------]
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
326 // dest: [----------------]
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
327 int leftward = -rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
328 dest.start_col = rect.start_col + leftward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
329 dest.end_col = rect.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
330 src.start_col = rect.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
331 src.end_col = rect.end_col - leftward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
332 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
333
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
334 if(downward >= 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
335 dest.start_row = rect.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
336 dest.end_row = rect.end_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
337 src.start_row = rect.start_row + downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
338 src.end_row = rect.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
339 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
340 else {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
341 int upward = -downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
342 dest.start_row = rect.start_row + upward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
343 dest.end_row = rect.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
344 src.start_row = rect.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
345 src.end_row = rect.end_row - upward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
346 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
347
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
348 if(moverect)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
349 (*moverect)(dest, src, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
350
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
351 if(downward > 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
352 rect.start_row = rect.end_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
353 else if(downward < 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
354 rect.end_row = rect.start_row - downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
355
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
356 if(rightward > 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
357 rect.start_col = rect.end_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
358 else if(rightward < 0)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
359 rect.end_col = rect.start_col - rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
360
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
361 (*eraserect)(rect, 0, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
362 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
363
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
364 void vterm_copy_cells(VTermRect dest,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
365 VTermRect src,
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
366 void (*copycell)(VTermPos dest, VTermPos src, void *user),
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
367 void *user)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
368 {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
369 int downward = src.start_row - dest.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
370 int rightward = src.start_col - dest.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
371
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
372 int init_row, test_row, init_col, test_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
373 int inc_row, inc_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
374
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
375 VTermPos pos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
376
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
377 if(downward < 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
378 init_row = dest.end_row - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
379 test_row = dest.start_row - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
380 inc_row = -1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
381 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
382 else {
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
383 // downward >= 0
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
384 init_row = dest.start_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
385 test_row = dest.end_row;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
386 inc_row = +1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
387 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
388
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
389 if(rightward < 0) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
390 init_col = dest.end_col - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
391 test_col = dest.start_col - 1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
392 inc_col = -1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
393 }
17777
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
394 else {
811a12a78164 patch 8.1.1885: comments in libvterm are inconsistent
Bram Moolenaar <Bram@vim.org>
parents: 15249
diff changeset
395 // rightward >= 0
11621
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
396 init_col = dest.start_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
397 test_col = dest.end_col;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
398 inc_col = +1;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
399 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
400
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
401 for(pos.row = init_row; pos.row != test_row; pos.row += inc_row)
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
402 for(pos.col = init_col; pos.col != test_col; pos.col += inc_col) {
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
403 VTermPos srcpos;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
404 srcpos.row = pos.row + downward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
405 srcpos.col = pos.col + rightward;
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
406 (*copycell)(pos, srcpos, user);
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
407 }
b8299e742f41 patch 8.0.0693: no terminal emulator support
Christian Brabandt <cb@256bit.org>
parents:
diff changeset
408 }