libvterm/src/state.c

50 static void erase(VTermState *state, VTermRect rect, int selective)
53     if((*state->callbacks->erase)(rect, selective, state->cbdata))
81 static void scroll(VTermState *state, VTermRect rect, int downward, int rightward)
87   if(rect.start_col == 0 && rect.end_col == state->cols && rightward == 0) {
88     int height = rect.end_row - rect.start_row - abs(downward);
91       memmove(state->lineinfo + rect.start_row,
92               state->lineinfo + rect.start_row + downward,
95       memmove(state->lineinfo + rect.start_row - downward,
96               state->lineinfo + rect.start_row,
101     if((*state->callbacks->scrollrect)(rect, downward, rightward, state->cbdata))
105     vterm_scroll_rect(rect, downward, rightward,
112     VTermRect rect = {
119     scroll(state, rect, 1, 0);
310       VTermRect rect = {
316       scroll(state, rect, 0, -1);
407       VTermRect rect = {
414       scroll(state, rect, -1, 0);
913   VTermRect rect;
958     rect.start_row = state->pos.row;
959     rect.end_row   = state->pos.row + 1;
960     rect.start_col = state->pos.col;
962       rect.end_col = SCROLLREGION_RIGHT(state);
964       rect.end_col = THISROWWIDTH(state);
966     scroll(state, rect, 0, -count);
1038       rect.start_row = state->pos.row; rect.end_row = state->pos.row + 1;
1039       rect.start_col = state->pos.col; rect.end_col = state->cols;
1040       if(rect.end_col > rect.start_col)
1041         erase(state, rect, selective);
1043       rect.start_row = state->pos.row + 1; rect.end_row = state->rows;
1044       rect.start_col = 0;
1045       for(row = rect.start_row; row < rect.end_row; row++)
1047       if(rect.end_row > rect.start_row)
1048         erase(state, rect, selective);
1052       rect.start_row = 0; rect.end_row = state->pos.row;
1053       rect.start_col = 0; rect.end_col = state->cols;
1054       for(row = rect.start_row; row < rect.end_row; row++)
1056       if(rect.end_col > rect.start_col)
1057         erase(state, rect, selective);
1059       rect.start_row = state->pos.row; rect.end_row = state->pos.row + 1;
1060                           rect.end_col = state->pos.col + 1;
1061       if(rect.end_row > rect.start_row)
1062         erase(state, rect, selective);
1066       rect.start_row = 0; rect.end_row = state->rows;
1067       rect.start_col = 0; rect.end_col = state->cols;
1068       for(row = rect.start_row; row < rect.end_row; row++)
1070       erase(state, rect, selective);
1078     rect.start_row = state->pos.row;
1079     rect.end_row   = state->pos.row + 1;
1084       rect.start_col = state->pos.col; rect.end_col = THISROWWIDTH(state); break;
1086       rect.start_col = 0; rect.end_col = state->pos.col + 1; break;
1088       rect.start_col = 0; rect.end_col = THISROWWIDTH(state); break;
1093     if(rect.end_col > rect.start_col)
1094       erase(state, rect, selective);
1101     rect.start_row = state->pos.row;
1102     rect.end_row   = SCROLLREGION_BOTTOM(state);
1103     rect.start_col = SCROLLREGION_LEFT(state);
1104     rect.end_col   = SCROLLREGION_RIGHT(state);
1106     scroll(state, rect, -count, 0);
1113     rect.start_row = state->pos.row;
1114     rect.end_row   = SCROLLREGION_BOTTOM(state);
1115     rect.start_col = SCROLLREGION_LEFT(state);
1116     rect.end_col   = SCROLLREGION_RIGHT(state);
1118     scroll(state, rect, count, 0);
1125     rect.start_row = state->pos.row;
1126     rect.end_row   = state->pos.row + 1;
1127     rect.start_col = state->pos.col;
1129       rect.end_col = SCROLLREGION_RIGHT(state);
1131       rect.end_col = THISROWWIDTH(state);
1133     scroll(state, rect, 0, count);
1140     rect.start_row = state->scrollregion_top;
1141     rect.end_row   = SCROLLREGION_BOTTOM(state);
1142     rect.start_col = SCROLLREGION_LEFT(state);
1143     rect.end_col   = SCROLLREGION_RIGHT(state);
1145     scroll(state, rect, count, 0);
1152     rect.start_row = state->scrollregion_top;
1153     rect.end_row   = SCROLLREGION_BOTTOM(state);
1154     rect.start_col = SCROLLREGION_LEFT(state);
1155     rect.end_col   = SCROLLREGION_RIGHT(state);
1157     scroll(state, rect, -count, 0);
1164     rect.start_row = state->pos.row;
1165     rect.end_row   = state->pos.row + 1;
1166     rect.start_col = state->pos.col;
1167     rect.end_col   = state->pos.col + count;
1168     UBOUND(rect.end_col, THISROWWIDTH(state));
1170     erase(state, rect, 0);
1392     rect.start_row = state->scrollregion_top;
1393     rect.end_row   = SCROLLREGION_BOTTOM(state);
1394     rect.start_col = state->pos.col;
1395     rect.end_col   = SCROLLREGION_RIGHT(state);
1397     scroll(state, rect, 0, -count);
1404     rect.start_row = state->scrollregion_top;
1405     rect.end_row   = SCROLLREGION_BOTTOM(state);
1406     rect.start_col = state->pos.col;
1407     rect.end_col   = SCROLLREGION_RIGHT(state);
1409     scroll(state, rect, 0, count);
1686     VTermRect rect = { 0, state->rows, 0, state->cols };
1691     erase(state, rect, 0);
1743       VTermRect rect = {
1749       erase(state, rect, 0);