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-rw-r--r--ldmicro/draw.cpp1766
1 files changed, 883 insertions, 883 deletions
diff --git a/ldmicro/draw.cpp b/ldmicro/draw.cpp
index ad70101..78232ba 100644
--- a/ldmicro/draw.cpp
+++ b/ldmicro/draw.cpp
@@ -69,182 +69,182 @@ BOOL ThisHighlighted;
// return FALSE;
// }
-// //-----------------------------------------------------------------------------
-// // Determine the width, in leaf element units, of a particular subcircuit.
-// // The width of a leaf is 1, the width of a series circuit is the sum of
-// // of the widths of its members, and the width of a parallel circuit is
-// // the maximum of the widths of its members.
-// //-----------------------------------------------------------------------------
-// static int CountWidthOfElement(int which, void *elem, int soFar)
-// {
-// switch(which) {
-// case ELEM_PLACEHOLDER:
-// case ELEM_OPEN:
-// case ELEM_SHORT:
-// case ELEM_CONTACTS:
-// case ELEM_TON:
-// case ELEM_TOF:
-// case ELEM_RTO:
-// case ELEM_CTU:
-// case ELEM_CTD:
-// case ELEM_ONE_SHOT_RISING:
-// case ELEM_ONE_SHOT_FALLING:
-// case ELEM_EQU:
-// case ELEM_NEQ:
-// case ELEM_GRT:
-// case ELEM_GEQ:
-// case ELEM_LES:
-// case ELEM_LEQ:
-// case ELEM_UART_RECV:
-// case ELEM_UART_SEND:
-// return 1;
-
-// case ELEM_FORMATTED_STRING:
-// return 2;
-
-// case ELEM_COMMENT: {
-// if(soFar != 0) oops();
-
-// ElemLeaf *l = (ElemLeaf *)elem;
-// char tbuf[MAX_COMMENT_LEN];
-
-// strcpy(tbuf, l->d.comment.str);
-// char *b = strchr(tbuf, '\n');
-
-// int len;
-// if(b) {
-// *b = '\0';
-// len = max(strlen(tbuf)-1, strlen(b+1));
-// } else {
-// len = strlen(tbuf);
-// }
-// // round up, and allow space for lead-in
-// len = (len + 7 + (POS_WIDTH-1)) / POS_WIDTH;
-// return max(ColsAvailable, len);
-// }
-// case ELEM_CTC:
-// case ELEM_RES:
-// case ELEM_COIL:
-// case ELEM_MOVE:
-// case ELEM_SHIFT_REGISTER:
-// case ELEM_LOOK_UP_TABLE:
-// case ELEM_PIECEWISE_LINEAR:
-// case ELEM_MASTER_RELAY:
-// case ELEM_READ_ADC:
-// case ELEM_SET_PWM:
-// case ELEM_PERSIST:
-// if(ColsAvailable - soFar > 1) {
-// return ColsAvailable - soFar;
-// } else {
-// return 1;
-// }
-
-// case ELEM_ADD:
-// case ELEM_SUB:
-// case ELEM_MUL:
-// case ELEM_DIV:
-// if(ColsAvailable - soFar > 2) {
-// return ColsAvailable - soFar;
-// } else {
-// return 2;
-// }
-
-// case ELEM_SERIES_SUBCKT: {
-// // total of the width of the members
-// int total = 0;
-// int i;
-// ElemSubcktSeries *s = (ElemSubcktSeries *)elem;
-// for(i = 0; i < s->count; i++) {
-// total += CountWidthOfElement(s->contents[i].which,
-// s->contents[i].d.any, total+soFar);
-// }
-// return total;
-// }
-
-// case ELEM_PARALLEL_SUBCKT: {
-// // greatest of the width of the members
-// int max = 0;
-// int i;
-// ElemSubcktParallel *p = (ElemSubcktParallel *)elem;
-// for(i = 0; i < p->count; i++) {
-// int w = CountWidthOfElement(p->contents[i].which,
-// p->contents[i].d.any, soFar);
-// if(w > max) {
-// max = w;
-// }
-// }
-// return max;
-// }
-
-// default:
-// oops();
-// }
-// }
-
-// //-----------------------------------------------------------------------------
-// // Determine the height, in leaf element units, of a particular subcircuit.
-// // The height of a leaf is 1, the height of a parallel circuit is the sum of
-// // of the heights of its members, and the height of a series circuit is the
-// // maximum of the heights of its members. (This is the dual of the width
-// // case.)
-// //-----------------------------------------------------------------------------
-// int CountHeightOfElement(int which, void *elem)
-// {
-// switch(which) {
-// CASE_LEAF
-// return 1;
-
-// case ELEM_PARALLEL_SUBCKT: {
-// // total of the height of the members
-// int total = 0;
-// int i;
-// ElemSubcktParallel *s = (ElemSubcktParallel *)elem;
-// for(i = 0; i < s->count; i++) {
-// total += CountHeightOfElement(s->contents[i].which,
-// s->contents[i].d.any);
-// }
-// return total;
-// }
-
-// case ELEM_SERIES_SUBCKT: {
-// // greatest of the height of the members
-// int max = 0;
-// int i;
-// ElemSubcktSeries *s = (ElemSubcktSeries *)elem;
-// for(i = 0; i < s->count; i++) {
-// int w = CountHeightOfElement(s->contents[i].which,
-// s->contents[i].d.any);
-// if(w > max) {
-// max = w;
-// }
-// }
-// return max;
-// }
+//-----------------------------------------------------------------------------
+// Determine the width, in leaf element units, of a particular subcircuit.
+// The width of a leaf is 1, the width of a series circuit is the sum of
+// of the widths of its members, and the width of a parallel circuit is
+// the maximum of the widths of its members.
+//-----------------------------------------------------------------------------
+static int CountWidthOfElement(int which, void *elem, int soFar)
+{
+ switch(which) {
+ case ELEM_PLACEHOLDER:
+ case ELEM_OPEN:
+ case ELEM_SHORT:
+ case ELEM_CONTACTS:
+ case ELEM_TON:
+ case ELEM_TOF:
+ case ELEM_RTO:
+ case ELEM_CTU:
+ case ELEM_CTD:
+ case ELEM_ONE_SHOT_RISING:
+ case ELEM_ONE_SHOT_FALLING:
+ case ELEM_EQU:
+ case ELEM_NEQ:
+ case ELEM_GRT:
+ case ELEM_GEQ:
+ case ELEM_LES:
+ case ELEM_LEQ:
+ case ELEM_UART_RECV:
+ case ELEM_UART_SEND:
+ return 1;
+
+ case ELEM_FORMATTED_STRING:
+ return 2;
+
+ case ELEM_COMMENT: {
+ if(soFar != 0) oops();
+
+ ElemLeaf *l = (ElemLeaf *)elem;
+ char tbuf[MAX_COMMENT_LEN];
+
+ strcpy(tbuf, l->d.comment.str);
+ char *b = strchr(tbuf, '\n');
+
+ int len;
+ if(b) {
+ *b = '\0';
+ len = max(strlen(tbuf)-1, strlen(b+1));
+ } else {
+ len = strlen(tbuf);
+ }
+ // round up, and allow space for lead-in
+ len = (len + 7 + (POS_WIDTH-1)) / POS_WIDTH;
+ return max(ColsAvailable, len);
+ }
+ case ELEM_CTC:
+ case ELEM_RES:
+ case ELEM_COIL:
+ case ELEM_MOVE:
+ case ELEM_SHIFT_REGISTER:
+ case ELEM_LOOK_UP_TABLE:
+ case ELEM_PIECEWISE_LINEAR:
+ case ELEM_MASTER_RELAY:
+ case ELEM_READ_ADC:
+ case ELEM_SET_PWM:
+ case ELEM_PERSIST:
+ if(ColsAvailable - soFar > 1) {
+ return ColsAvailable - soFar;
+ } else {
+ return 1;
+ }
+
+ case ELEM_ADD:
+ case ELEM_SUB:
+ case ELEM_MUL:
+ case ELEM_DIV:
+ if(ColsAvailable - soFar > 2) {
+ return ColsAvailable - soFar;
+ } else {
+ return 2;
+ }
+
+ case ELEM_SERIES_SUBCKT: {
+ // total of the width of the members
+ int total = 0;
+ int i;
+ ElemSubcktSeries *s = (ElemSubcktSeries *)elem;
+ for(i = 0; i < s->count; i++) {
+ total += CountWidthOfElement(s->contents[i].which,
+ s->contents[i].d.any, total+soFar);
+ }
+ return total;
+ }
+
+ case ELEM_PARALLEL_SUBCKT: {
+ // greatest of the width of the members
+ int max = 0;
+ int i;
+ ElemSubcktParallel *p = (ElemSubcktParallel *)elem;
+ for(i = 0; i < p->count; i++) {
+ int w = CountWidthOfElement(p->contents[i].which,
+ p->contents[i].d.any, soFar);
+ if(w > max) {
+ max = w;
+ }
+ }
+ return max;
+ }
+
+ default:
+ oops();
+ }
+}
-// default:
-// oops();
-// }
-// }
+//-----------------------------------------------------------------------------
+// Determine the height, in leaf element units, of a particular subcircuit.
+// The height of a leaf is 1, the height of a parallel circuit is the sum of
+// of the heights of its members, and the height of a series circuit is the
+// maximum of the heights of its members. (This is the dual of the width
+// case.)
+//-----------------------------------------------------------------------------
+int CountHeightOfElement(int which, void *elem)
+{
+ switch(which) {
+ CASE_LEAF
+ return 1;
+
+ case ELEM_PARALLEL_SUBCKT: {
+ // total of the height of the members
+ int total = 0;
+ int i;
+ ElemSubcktParallel *s = (ElemSubcktParallel *)elem;
+ for(i = 0; i < s->count; i++) {
+ total += CountHeightOfElement(s->contents[i].which,
+ s->contents[i].d.any);
+ }
+ return total;
+ }
+
+ case ELEM_SERIES_SUBCKT: {
+ // greatest of the height of the members
+ int max = 0;
+ int i;
+ ElemSubcktSeries *s = (ElemSubcktSeries *)elem;
+ for(i = 0; i < s->count; i++) {
+ int w = CountHeightOfElement(s->contents[i].which,
+ s->contents[i].d.any);
+ if(w > max) {
+ max = w;
+ }
+ }
+ return max;
+ }
+
+ default:
+ oops();
+ }
+}
-// //-----------------------------------------------------------------------------
-// // Determine the width, in leaf element units, of the widest row of the PLC
-// // program (i.e. loop over all the rungs and find the widest).
-// //-----------------------------------------------------------------------------
-// int ProgCountWidestRow(void)
-// {
-// int i;
-// int max = 0;
-// int colsTemp = ColsAvailable;
-// ColsAvailable = 0;
-// for(i = 0; i < Prog.numRungs; i++) {
-// int w = CountWidthOfElement(ELEM_SERIES_SUBCKT, Prog.rungs[i], 0);
-// if(w > max) {
-// max = w;
-// }
-// }
-// ColsAvailable = colsTemp;
-// return max;
-// }
+//-----------------------------------------------------------------------------
+// Determine the width, in leaf element units, of the widest row of the PLC
+// program (i.e. loop over all the rungs and find the widest).
+//-----------------------------------------------------------------------------
+int ProgCountWidestRow(void)
+{
+ int i;
+ int max = 0;
+ int colsTemp = ColsAvailable;
+ ColsAvailable = 0;
+ for(i = 0; i < Prog.numRungs; i++) {
+ int w = CountWidthOfElement(ELEM_SERIES_SUBCKT, Prog.rungs[i], 0);
+ if(w > max) {
+ max = w;
+ }
+ }
+ ColsAvailable = colsTemp;
+ return max;
+}
// //-----------------------------------------------------------------------------
// // Draw a vertical wire one leaf element unit high up from (cx, cy), where cx
@@ -355,716 +355,716 @@ BOOL ThisHighlighted;
// }
// }
-// //-----------------------------------------------------------------------------
-// // Draw a string, centred in the space of a single position, with en dashes on
-// // the left and right coloured according to the powered state. Draws on the
-// // middle line.
-// //-----------------------------------------------------------------------------
-// // static void CenterWithWires(int cx, int cy, char *str, BOOL before, BOOL after)
-// // {
-// // CenterWithWiresWidth(cx, cy, str, before, after, POS_WIDTH);
-// // }
+//-----------------------------------------------------------------------------
+// Draw a string, centred in the space of a single position, with en dashes on
+// the left and right coloured according to the powered state. Draws on the
+// middle line.
+//-----------------------------------------------------------------------------
+// static void CenterWithWires(int cx, int cy, char *str, BOOL before, BOOL after)
+// {
+// CenterWithWiresWidth(cx, cy, str, before, after, POS_WIDTH);
+// }
-// //-----------------------------------------------------------------------------
-// // Draw an end of line element (coil, RES, MOV, etc.). Special things about
-// // an end of line element: we must right-justify it.
-// //-----------------------------------------------------------------------------
-// // static BOOL DrawEndOfLine(int which, ElemLeaf *leaf, int *cx, int *cy,
-// // BOOL poweredBefore)
-// // {
-// // int cx0 = *cx, cy0 = *cy;
-
-// // BOOL poweredAfter = leaf->poweredAfter;
-
-// // int thisWidth;
-// // switch(which) {
-// // case ELEM_ADD:
-// // case ELEM_SUB:
-// // case ELEM_MUL:
-// // case ELEM_DIV:
-// // thisWidth = 2;
-// // break;
-
-// // default:
-// // thisWidth = 1;
-// // break;
-// // }
-
-// // NormText();
-// // PoweredText(poweredBefore);
-// // while(*cx < (ColsAvailable-thisWidth)*POS_WIDTH) {
-// // int gx = *cx/POS_WIDTH;
-// // int gy = *cy/POS_HEIGHT;
-
-// // if(CheckBoundsUndoIfFails(gx, gy)) return FALSE;
-
-// // if(gx >= DISPLAY_MATRIX_X_SIZE) oops();
-// // DM_BOUNDS(gx, gy);
-// // DisplayMatrix[gx][gy] = PADDING_IN_DISPLAY_MATRIX;
-// // DisplayMatrixWhich[gx][gy] = ELEM_PADDING;
-
-// // int i;
-// // for(i = 0; i < POS_WIDTH; i++) {
-// // DrawChars(*cx + i, *cy + (POS_HEIGHT/2), "-");
-// // }
-// // *cx += POS_WIDTH;
-// // cx0 += POS_WIDTH;
-// // }
-
-// // if(leaf == Selected && !InSimulationMode) {
-// // EmphText();
-// // ThisHighlighted = TRUE;
-// // } else {
-// // ThisHighlighted = FALSE;
-// // }
-
-// // switch(which) {
-// // case ELEM_CTC: {
-// // char buf[256];
-// // ElemCounter *c = &leaf->d.counter;
-// // sprintf(buf, "{\x01""CTC\x02 0:%d}", c->max);
-
-// // CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
-// // break;
-// // }
-// // case ELEM_RES: {
-// // ElemReset *r = &leaf->d.reset;
-// // CenterWithSpaces(*cx, *cy, r->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, "{RES}", poweredBefore, poweredAfter);
-// // break;
-// // }
-// // case ELEM_READ_ADC: {
-// // ElemReadAdc *r = &leaf->d.readAdc;
-// // CenterWithSpaces(*cx, *cy, r->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, "{READ ADC}", poweredBefore,
-// // poweredAfter);
-// // break;
-// // }
-// // case ELEM_SET_PWM: {
-// // ElemSetPwm *s = &leaf->d.setPwm;
-// // CenterWithSpaces(*cx, *cy, s->name, poweredAfter, TRUE);
-// // char l[50];
-// // if(s->targetFreq >= 100000) {
-// // sprintf(l, "{PWM %d kHz}", (s->targetFreq+500)/1000);
-// // } else if(s->targetFreq >= 10000) {
-// // sprintf(l, "{PWM %.1f kHz}", s->targetFreq/1000.0);
-// // } else if(s->targetFreq >= 1000) {
-// // sprintf(l, "{PWM %.2f kHz}", s->targetFreq/1000.0);
-// // } else {
-// // sprintf(l, "{PWM %d Hz}", s->targetFreq);
-// // }
-// // CenterWithWires(*cx, *cy, l, poweredBefore,
-// // poweredAfter);
-// // break;
-// // }
-// // case ELEM_PERSIST:
-// // CenterWithSpaces(*cx, *cy, leaf->d.persist.var, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, "{PERSIST}", poweredBefore, poweredAfter);
-// // break;
-
-// // case ELEM_MOVE: {
-// // char top[256];
-// // char bot[256];
-// // ElemMove *m = &leaf->d.move;
-
-// // if((strlen(m->dest) > (POS_WIDTH - 9)) ||
-// // (strlen(m->src) > (POS_WIDTH - 9)))
-// // {
-// // CenterWithWires(*cx, *cy, TOO_LONG, poweredBefore,
-// // poweredAfter);
-// // break;
-// // }
-
-// // strcpy(top, "{ }");
-// // memcpy(top+1, m->dest, strlen(m->dest));
-// // top[strlen(m->dest) + 3] = ':';
-// // top[strlen(m->dest) + 4] = '=';
-
-// // strcpy(bot, "{ \x01MOV\x02}");
-// // memcpy(bot+2, m->src, strlen(m->src));
-
-// // CenterWithSpaces(*cx, *cy, top, poweredAfter, FALSE);
-// // CenterWithWires(*cx, *cy, bot, poweredBefore, poweredAfter);
-// // break;
-// // }
-// // case ELEM_MASTER_RELAY:
-// // CenterWithWires(*cx, *cy, "{MASTER RLY}", poweredBefore,
-// // poweredAfter);
-// // break;
-
-// // case ELEM_SHIFT_REGISTER: {
-// // char bot[MAX_NAME_LEN+20];
-// // memset(bot, ' ', sizeof(bot));
-// // bot[0] = '{';
-// // sprintf(bot+2, "%s0..%d", leaf->d.shiftRegister.name,
-// // leaf->d.shiftRegister.stages-1);
-// // bot[strlen(bot)] = ' ';
-// // bot[13] = '}';
-// // bot[14] = '\0';
-// // CenterWithSpaces(*cx, *cy, "{\x01SHIFT REG\x02 }",
-// // poweredAfter, FALSE);
-// // CenterWithWires(*cx, *cy, bot, poweredBefore, poweredAfter);
-// // break;
-// // }
-// // case ELEM_PIECEWISE_LINEAR:
-// // case ELEM_LOOK_UP_TABLE: {
-// // char top[MAX_NAME_LEN+20], bot[MAX_NAME_LEN+20];
-// // char *dest, *index, *str;
-// // if(which == ELEM_PIECEWISE_LINEAR) {
-// // dest = leaf->d.piecewiseLinear.dest;
-// // index = leaf->d.piecewiseLinear.index;
-// // str = "PWL";
-// // } else {
-// // dest = leaf->d.lookUpTable.dest;
-// // index = leaf->d.lookUpTable.index;
-// // str = "LUT";
-// // }
-// // memset(top, ' ', sizeof(top));
-// // top[0] = '{';
-// // sprintf(top+2, "%s :=", dest);
-// // top[strlen(top)] = ' ';
-// // top[13] = '}';
-// // top[14] = '\0';
-// // CenterWithSpaces(*cx, *cy, top, poweredAfter, FALSE);
-// // memset(bot, ' ', sizeof(bot));
-// // bot[0] = '{';
-// // sprintf(bot+2, " %s[%s]", str, index);
-// // bot[strlen(bot)] = ' ';
-// // bot[13] = '}';
-// // bot[14] = '\0';
-// // CenterWithWires(*cx, *cy, bot, poweredBefore, poweredAfter);
-// // break;
-// // }
-// // case ELEM_COIL: {
-// // char buf[4];
-// // ElemCoil *c = &leaf->d.coil;
-
-// // buf[0] = '(';
-// // if(c->negated) {
-// // buf[1] = '/';
-// // } else if(c->setOnly) {
-// // buf[1] = 'S';
-// // } else if(c->resetOnly) {
-// // buf[1] = 'R';
-// // } else {
-// // buf[1] = ' ';
-// // }
-// // buf[2] = ')';
-// // buf[3] = '\0';
-
-// // CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
-// // break;
-// // }
-// // case ELEM_DIV:
-// // case ELEM_MUL:
-// // case ELEM_SUB:
-// // case ELEM_ADD: {
-// // char top[POS_WIDTH*2-3+2];
-// // char bot[POS_WIDTH*2-3];
-
-// // memset(top, ' ', sizeof(top)-1);
-// // top[0] = '{';
-
-// // memset(bot, ' ', sizeof(bot)-1);
-// // bot[0] = '{';
-
-// // int lt = 1;
-// // if(which == ELEM_ADD) {
-// // memcpy(top+lt, "\x01""ADD\x02", 5);
-// // } else if(which == ELEM_SUB) {
-// // memcpy(top+lt, "\x01SUB\x02", 5);
-// // } else if(which == ELEM_MUL) {
-// // memcpy(top+lt, "\x01MUL\x02", 5);
-// // } else if(which == ELEM_DIV) {
-// // memcpy(top+lt, "\x01""DIV\x02", 5);
-// // } else oops();
-
-// // lt += 7;
-// // memcpy(top+lt, leaf->d.math.dest, strlen(leaf->d.math.dest));
-// // lt += strlen(leaf->d.math.dest) + 2;
-// // top[lt++] = ':';
-// // top[lt++] = '=';
-
-// // int lb = 2;
-// // memcpy(bot+lb, leaf->d.math.op1, strlen(leaf->d.math.op1));
-// // lb += strlen(leaf->d.math.op1) + 1;
-// // if(which == ELEM_ADD) {
-// // bot[lb++] = '+';
-// // } else if(which == ELEM_SUB) {
-// // bot[lb++] = '-';
-// // } else if(which == ELEM_MUL) {
-// // bot[lb++] = '*';
-// // } else if(which == ELEM_DIV) {
-// // bot[lb++] = '/';
-// // } else oops();
-// // lb++;
-// // memcpy(bot+lb, leaf->d.math.op2, strlen(leaf->d.math.op2));
-// // lb += strlen(leaf->d.math.op2);
-
-// // int l = max(lb, lt - 2);
-// // top[l+2] = '}'; top[l+3] = '\0';
-// // bot[l] = '}'; bot[l+1] = '\0';
-
-// // int extra = 2*POS_WIDTH - FormattedStrlen(top);
-// // PoweredText(poweredAfter);
-// // DrawChars(*cx + (extra/2), *cy + (POS_HEIGHT/2) - 1, top);
-// // CenterWithWiresWidth(*cx, *cy, bot, poweredBefore, poweredAfter,
-// // 2*POS_WIDTH);
-
-// // *cx += POS_WIDTH;
-
-// // break;
-// // }
-// // default:
-// // oops();
-// // break;
-// // }
-
-// // *cx += POS_WIDTH;
-
-// // return poweredAfter;
-// // }
+//-----------------------------------------------------------------------------
+// Draw an end of line element (coil, RES, MOV, etc.). Special things about
+// an end of line element: we must right-justify it.
+//-----------------------------------------------------------------------------
+// static BOOL DrawEndOfLine(int which, ElemLeaf *leaf, int *cx, int *cy,
+// BOOL poweredBefore)
+// {
+// int cx0 = *cx, cy0 = *cy;
-// //-----------------------------------------------------------------------------
-// // Draw a leaf element. Special things about a leaf: no need to recurse
-// // further, and we must put it into the display matrix.
-// //-----------------------------------------------------------------------------
-// // static BOOL DrawLeaf(int which, ElemLeaf *leaf, int *cx, int *cy,
-// // BOOL poweredBefore)
-// // {
-// // int cx0 = *cx, cy0 = *cy;
-// // BOOL poweredAfter = leaf->poweredAfter;
-
-// // switch(which) {
-// // case ELEM_COMMENT: {
-// // char tbuf[MAX_COMMENT_LEN];
-// // char tlbuf[MAX_COMMENT_LEN+8];
-
-// // strcpy(tbuf, leaf->d.comment.str);
-// // char *b = strchr(tbuf, '\n');
-
-// // if(b) {
-// // if(b[-1] == '\r') b[-1] = '\0';
-// // *b = '\0';
-// // sprintf(tlbuf, "\x03 ; %s\x02", tbuf);
-// // DrawChars(*cx, *cy + (POS_HEIGHT/2) - 1, tlbuf);
-// // sprintf(tlbuf, "\x03 ; %s\x02", b+1);
-// // DrawChars(*cx, *cy + (POS_HEIGHT/2), tlbuf);
-// // } else {
-// // sprintf(tlbuf, "\x03 ; %s\x02", tbuf);
-// // DrawChars(*cx, *cy + (POS_HEIGHT/2) - 1, tlbuf);
-// // }
-
-// // *cx += ColsAvailable*POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_PLACEHOLDER: {
-// // NormText();
-// // CenterWithWiresWidth(*cx, *cy, "--", FALSE, FALSE, 2);
-// // *cx += POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_CONTACTS: {
-// // char buf[4];
-// // ElemContacts *c = &leaf->d.contacts;
-
-// // buf[0] = ']';
-// // buf[1] = c->negated ? '/' : ' ';
-// // buf[2] = '[';
-// // buf[3] = '\0';
-
-// // CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
-
-// // *cx += POS_WIDTH;
-// // break;
-// // }
-// // {
-// // char *s;
-// // case ELEM_EQU:
-// // s = "=="; goto cmp;
-// // case ELEM_NEQ:
-// // s = "/="; goto cmp;
-// // case ELEM_GRT:
-// // s = ">"; goto cmp;
-// // case ELEM_GEQ:
-// // s = ">="; goto cmp;
-// // case ELEM_LES:
-// // s = "<"; goto cmp;
-// // case ELEM_LEQ:
-// // s = "<="; goto cmp;
-// // cmp:
-// // char s1[POS_WIDTH+10], s2[POS_WIDTH+10];
-// // int l1, l2, lmax;
-
-// // l1 = 2 + 1 + strlen(s) + strlen(leaf->d.cmp.op1);
-// // l2 = 2 + 1 + strlen(leaf->d.cmp.op2);
-// // lmax = max(l1, l2);
-
-// // if(lmax < POS_WIDTH) {
-// // memset(s1, ' ', sizeof(s1));
-// // s1[0] = '[';
-// // s1[lmax-1] = ']';
-// // s1[lmax] = '\0';
-// // strcpy(s2, s1);
-// // memcpy(s1+1, leaf->d.cmp.op1, strlen(leaf->d.cmp.op1));
-// // memcpy(s1+strlen(leaf->d.cmp.op1)+2, s, strlen(s));
-// // memcpy(s2+2, leaf->d.cmp.op2, strlen(leaf->d.cmp.op2));
-// // } else {
-// // strcpy(s1, "");
-// // strcpy(s2, TOO_LONG);
-// // }
-
-// // CenterWithSpaces(*cx, *cy, s1, poweredAfter, FALSE);
-// // CenterWithWires(*cx, *cy, s2, poweredBefore, poweredAfter);
-
-// // *cx += POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_OPEN:
-// // CenterWithWires(*cx, *cy, "+ +", poweredBefore, poweredAfter);
-// // *cx += POS_WIDTH;
-// // break;
-
-// // case ELEM_SHORT:
-// // CenterWithWires(*cx, *cy, "+------+", poweredBefore, poweredAfter);
-// // *cx += POS_WIDTH;
-// // break;
-
-// // case ELEM_ONE_SHOT_RISING:
-// // case ELEM_ONE_SHOT_FALLING: {
-// // char *s1, *s2;
-// // if(which == ELEM_ONE_SHOT_RISING) {
-// // s1 = " _ ";
-// // s2 = "[\x01OSR\x02_/ ]";
-// // } else if(which == ELEM_ONE_SHOT_FALLING) {
-// // s1 = " _ ";
-// // s2 = "[\x01OSF\x02 \\_]";
-// // } else oops();
-
-// // CenterWithSpaces(*cx, *cy, s1, poweredAfter, FALSE);
-// // CenterWithWires(*cx, *cy, s2, poweredBefore, poweredAfter);
-
-// // *cx += POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_CTU:
-// // case ELEM_CTD: {
-// // char *s;
-// // if(which == ELEM_CTU)
-// // s = "\x01""CTU\x02";
-// // else if(which == ELEM_CTD)
-// // s = "\x01""CTD\x02";
-// // else oops();
-
-// // char buf[256];
-// // ElemCounter *c = &leaf->d.counter;
-// // sprintf(buf, "[%s >=%d]", s, c->max);
-
-// // CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
-
-// // *cx += POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_RTO:
-// // case ELEM_TON:
-// // case ELEM_TOF: {
-// // char *s;
-// // if(which == ELEM_TON)
-// // s = "\x01TON\x02";
-// // else if(which == ELEM_TOF)
-// // s = "\x01TOF\x02";
-// // else if(which == ELEM_RTO)
-// // s = "\x01RTO\x02";
-// // else oops();
-
-// // char buf[256];
-// // ElemTimer *t = &leaf->d.timer;
-// // if(t->delay >= 1000*1000) {
-// // sprintf(buf, "[%s %.3f s]", s, t->delay/1000000.0);
-// // } else if(t->delay >= 100*1000) {
-// // sprintf(buf, "[%s %.1f ms]", s, t->delay/1000.0);
-// // } else {
-// // sprintf(buf, "[%s %.2f ms]", s, t->delay/1000.0);
-// // }
-
-// // CenterWithSpaces(*cx, *cy, t->name, poweredAfter, TRUE);
-// // CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
-
-// // *cx += POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_FORMATTED_STRING: {
-// // // Careful, string could be longer than fits in our space.
-// // char str[POS_WIDTH*2];
-// // memset(str, 0, sizeof(str));
-// // char *srcStr = leaf->d.fmtdStr.string;
-// // memcpy(str, srcStr, min(strlen(srcStr), POS_WIDTH*2 - 7));
-
-// // char bot[100];
-// // sprintf(bot, "{\"%s\"}", str);
-
-// // int extra = 2*POS_WIDTH - strlen(leaf->d.fmtdStr.var);
-// // PoweredText(poweredAfter);
-// // NameText();
-// // DrawChars(*cx + (extra/2), *cy + (POS_HEIGHT/2) - 1,
-// // leaf->d.fmtdStr.var);
-// // BodyText();
-
-// // CenterWithWiresWidth(*cx, *cy, bot, poweredBefore, poweredAfter,
-// // 2*POS_WIDTH);
-// // *cx += 2*POS_WIDTH;
-// // break;
-// // }
-// // case ELEM_UART_RECV:
-// // case ELEM_UART_SEND:
-// // CenterWithWires(*cx, *cy,
-// // (which == ELEM_UART_RECV) ? "{UART RECV}" : "{UART SEND}",
-// // poweredBefore, poweredAfter);
-// // CenterWithSpaces(*cx, *cy, leaf->d.uart.name, poweredAfter, TRUE);
-// // *cx += POS_WIDTH;
-// // break;
-
-// // default:
-// // poweredAfter = DrawEndOfLine(which, leaf, cx, cy, poweredBefore);
-// // break;
-// // }
-
-// // // And now we can enter the element into the display matrix so that the
-// // // UI routines know what element is at position (gx, gy) when the user
-// // // clicks there, and so that we know where to put the cursor if this
-// // // element is selected.
-
-// // // Don't use original cx0, as an end of line element might be further
-// // // along than that.
-// // cx0 = *cx - POS_WIDTH;
-
-// // int gx = cx0/POS_WIDTH;
-// // int gy = cy0/POS_HEIGHT;
-// // if(CheckBoundsUndoIfFails(gx, gy)) return FALSE;
-// // DM_BOUNDS(gx, gy);
-
-// // DisplayMatrix[gx][gy] = leaf;
-// // DisplayMatrixWhich[gx][gy] = which;
-
-// // int xadj = 0;
-// // switch(which) {
-// // case ELEM_ADD:
-// // case ELEM_SUB:
-// // case ELEM_MUL:
-// // case ELEM_DIV:
-// // case ELEM_FORMATTED_STRING:
-// // DM_BOUNDS(gx-1, gy);
-// // DisplayMatrix[gx-1][gy] = leaf;
-// // DisplayMatrixWhich[gx-1][gy] = which;
-// // xadj = POS_WIDTH*FONT_WIDTH;
-// // break;
-// // }
-
-// // if(which == ELEM_COMMENT) {
-// // int i;
-// // for(i = 0; i < ColsAvailable; i++) {
-// // DisplayMatrix[i][gy] = leaf;
-// // DisplayMatrixWhich[i][gy] = ELEM_COMMENT;
-// // }
-// // xadj = (ColsAvailable-1)*POS_WIDTH*FONT_WIDTH;
-// // }
-
-// // int x0 = X_PADDING + cx0*FONT_WIDTH;
-// // int y0 = Y_PADDING + cy0*FONT_HEIGHT;
-
-// // if(leaf->selectedState != SELECTED_NONE && leaf == Selected) {
-// // SelectionActive = TRUE;
-// // }
-// // switch(leaf->selectedState) {
-// // case SELECTED_LEFT:
-// // Cursor.left = x0 + FONT_WIDTH - 4 - xadj;
-// // Cursor.top = y0 - FONT_HEIGHT/2;
-// // Cursor.width = 2;
-// // Cursor.height = POS_HEIGHT*FONT_HEIGHT;
-// // break;
-
-// // case SELECTED_RIGHT:
-// // Cursor.left = x0 + (POS_WIDTH-1)*FONT_WIDTH - 5;
-// // Cursor.top = y0 - FONT_HEIGHT/2;
-// // Cursor.width = 2;
-// // Cursor.height = POS_HEIGHT*FONT_HEIGHT;
-// // break;
-
-// // case SELECTED_ABOVE:
-// // Cursor.left = x0 + FONT_WIDTH/2 - xadj;
-// // Cursor.top = y0 - 2;
-// // Cursor.width = (POS_WIDTH-2)*FONT_WIDTH + xadj;
-// // Cursor.height = 2;
-// // break;
-
-// // case SELECTED_BELOW:
-// // Cursor.left = x0 + FONT_WIDTH/2 - xadj;
-// // Cursor.top = y0 + (POS_HEIGHT-1)*FONT_HEIGHT +
-// // FONT_HEIGHT/2 - 2;
-// // Cursor.width = (POS_WIDTH-2)*(FONT_WIDTH) + xadj;
-// // Cursor.height = 2;
-// // break;
-
-// // default:
-// // break;
-// // }
-
-// // return poweredAfter;
-// // }
+// BOOL poweredAfter = leaf->poweredAfter;
-// //-----------------------------------------------------------------------------
-// // Draw a particular subcircuit with its top left corner at *cx and *cy (in
-// // characters). If it is a leaf element then just print it and return; else
-// // loop over the elements of the subcircuit and call ourselves recursively.
-// // At the end updates *cx and *cy.
-// //
-// // In simulation mode, returns TRUE the circuit is energized after the given
-// // element, else FALSE. This is needed to colour all the wires correctly,
-// // since the colouring indicates whether a wire is energized.
-// //-----------------------------------------------------------------------------
-// // BOOL DrawElement(int which, void *elem, int *cx, int *cy, BOOL poweredBefore)
-// // {
-// // BOOL poweredAfter;
-
-// // int cx0 = *cx, cy0 = *cy;
-// // ElemLeaf *leaf = (ElemLeaf *)elem;
-
-// // SetBkColor(Hdc, InSimulationMode ? HighlightColours.simBg :
-// // HighlightColours.bg);
-// // NormText();
-
-// // if(elem == Selected && !InSimulationMode) {
-// // EmphText();
-// // ThisHighlighted = TRUE;
-// // } else {
-// // ThisHighlighted = FALSE;
-// // }
-
-// // switch(which) {
-// // case ELEM_SERIES_SUBCKT: {
-// // int i;
-// // ElemSubcktSeries *s = (ElemSubcktSeries *)elem;
-// // poweredAfter = poweredBefore;
-// // for(i = 0; i < s->count; i++) {
-// // poweredAfter = DrawElement(s->contents[i].which,
-// // s->contents[i].d.any, cx, cy, poweredAfter);
-// // }
-// // break;
-// // }
-// // case ELEM_PARALLEL_SUBCKT: {
-// // int i;
-// // ElemSubcktParallel *p = (ElemSubcktParallel *)elem;
-// // int widthMax = CountWidthOfElement(which, elem, (*cx)/POS_WIDTH);
-// // int heightMax = CountHeightOfElement(which, elem);
-
-// // poweredAfter = FALSE;
-
-// // int lowestPowered = -1;
-// // int downBy = 0;
-// // for(i = 0; i < p->count; i++) {
-// // BOOL poweredThis;
-
-// // poweredThis = DrawElement(p->contents[i].which,
-// // p->contents[i].d.any, cx, cy, poweredBefore);
-
-// // if(InSimulationMode) {
-// // if(poweredThis) poweredAfter = TRUE;
-// // PoweredText(poweredThis);
-// // }
-
-// // while((*cx - cx0) < widthMax*POS_WIDTH) {
-// // int gx = *cx/POS_WIDTH;
-// // int gy = *cy/POS_HEIGHT;
-
-// // if(CheckBoundsUndoIfFails(gx, gy)) return FALSE;
-
-// // DM_BOUNDS(gx, gy);
-// // DisplayMatrix[gx][gy] = PADDING_IN_DISPLAY_MATRIX;
-// // DisplayMatrixWhich[gx][gy] = ELEM_PADDING;
-
-// // char buf[256];
-// // int j;
-// // for(j = 0; j < POS_WIDTH; j++) {
-// // buf[j] = '-';
-// // }
-// // buf[j] = '\0';
-// // DrawChars(*cx, *cy + (POS_HEIGHT/2), buf);
-// // *cx += POS_WIDTH;
-// // }
-
-// // *cx = cx0;
-// // int justDrewHeight = CountHeightOfElement(p->contents[i].which,
-// // p->contents[i].d.any);
-// // *cy += POS_HEIGHT*justDrewHeight;
-
-// // downBy += justDrewHeight;
-// // if(poweredThis) {
-// // lowestPowered = downBy - 1;
-// // }
-// // }
-// // *cx = cx0 + POS_WIDTH*widthMax;
-// // *cy = cy0;
-
-// // int j;
-// // BOOL needWire;
-
-// // if(*cx/POS_WIDTH != ColsAvailable) {
-// // needWire = FALSE;
-// // for(j = heightMax - 1; j >= 1; j--) {
-// // if(j <= lowestPowered) PoweredText(poweredAfter);
-// // if(DisplayMatrix[*cx/POS_WIDTH - 1][*cy/POS_HEIGHT + j]) {
-// // needWire = TRUE;
-// // }
-// // if(needWire) VerticalWire(*cx - 1, *cy + j*POS_HEIGHT);
-// // }
-// // // stupid special case
-// // if(lowestPowered == 0 && InSimulationMode) {
-// // EmphText();
-// // DrawChars(*cx - 1, *cy + (POS_HEIGHT/2), "+");
-// // }
-// // }
-
-// // PoweredText(poweredBefore);
-// // needWire = FALSE;
-// // for(j = heightMax - 1; j >= 1; j--) {
-// // if(DisplayMatrix[cx0/POS_WIDTH][*cy/POS_HEIGHT + j]) {
-// // needWire = TRUE;
-// // }
-// // if(needWire) VerticalWire(cx0 - 1, *cy + j*POS_HEIGHT);
-// // }
-
-// // break;
-// // }
-// // default:
-// // poweredAfter = DrawLeaf(which, leaf, cx, cy, poweredBefore);
-// // break;
-// // }
-
-
-// // NormText();
-// // return poweredAfter;
-// // }
+// int thisWidth;
+// switch(which) {
+// case ELEM_ADD:
+// case ELEM_SUB:
+// case ELEM_MUL:
+// case ELEM_DIV:
+// thisWidth = 2;
+// break;
-// //-----------------------------------------------------------------------------
-// // Draw the rung that signals the end of the program. Kind of useless but
-// // do it anyways, for convention.
-// //-----------------------------------------------------------------------------
-// // void DrawEndRung(int cx, int cy)
-// // {
-// // int i;
-// // char *str = "[END]";
-// // int lead = (POS_WIDTH - strlen(str))/2;
-// // ThisHighlighted = TRUE;
-// // for(i = 0; i < lead; i++) {
-// // DrawChars(cx + i, cy + (POS_HEIGHT/2), "-");
-// // }
-// // DrawChars(cx + i, cy + (POS_HEIGHT/2), str);
-// // i += strlen(str);
-// // for(; i < ColsAvailable*POS_WIDTH; i++) {
-// // DrawChars(cx + i, cy + (POS_HEIGHT/2), "-");
-// // }
-// // }
+// default:
+// thisWidth = 1;
+// break;
+// }
+
+// NormText();
+// PoweredText(poweredBefore);
+// while(*cx < (ColsAvailable-thisWidth)*POS_WIDTH) {
+// int gx = *cx/POS_WIDTH;
+// int gy = *cy/POS_HEIGHT;
+
+// if(CheckBoundsUndoIfFails(gx, gy)) return FALSE;
+
+// if(gx >= DISPLAY_MATRIX_X_SIZE) oops();
+// DM_BOUNDS(gx, gy);
+// DisplayMatrix[gx][gy] = PADDING_IN_DISPLAY_MATRIX;
+// DisplayMatrixWhich[gx][gy] = ELEM_PADDING;
+
+// int i;
+// for(i = 0; i < POS_WIDTH; i++) {
+// DrawChars(*cx + i, *cy + (POS_HEIGHT/2), "-");
+// }
+// *cx += POS_WIDTH;
+// cx0 += POS_WIDTH;
+// }
+
+// if(leaf == Selected && !InSimulationMode) {
+// EmphText();
+// ThisHighlighted = TRUE;
+// } else {
+// ThisHighlighted = FALSE;
+// }
+
+// switch(which) {
+// case ELEM_CTC: {
+// char buf[256];
+// ElemCounter *c = &leaf->d.counter;
+// sprintf(buf, "{\x01""CTC\x02 0:%d}", c->max);
+
+// CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
+// break;
+// }
+// case ELEM_RES: {
+// ElemReset *r = &leaf->d.reset;
+// CenterWithSpaces(*cx, *cy, r->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, "{RES}", poweredBefore, poweredAfter);
+// break;
+// }
+// case ELEM_READ_ADC: {
+// ElemReadAdc *r = &leaf->d.readAdc;
+// CenterWithSpaces(*cx, *cy, r->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, "{READ ADC}", poweredBefore,
+// poweredAfter);
+// break;
+// }
+// case ELEM_SET_PWM: {
+// ElemSetPwm *s = &leaf->d.setPwm;
+// CenterWithSpaces(*cx, *cy, s->name, poweredAfter, TRUE);
+// char l[50];
+// if(s->targetFreq >= 100000) {
+// sprintf(l, "{PWM %d kHz}", (s->targetFreq+500)/1000);
+// } else if(s->targetFreq >= 10000) {
+// sprintf(l, "{PWM %.1f kHz}", s->targetFreq/1000.0);
+// } else if(s->targetFreq >= 1000) {
+// sprintf(l, "{PWM %.2f kHz}", s->targetFreq/1000.0);
+// } else {
+// sprintf(l, "{PWM %d Hz}", s->targetFreq);
+// }
+// CenterWithWires(*cx, *cy, l, poweredBefore,
+// poweredAfter);
+// break;
+// }
+// case ELEM_PERSIST:
+// CenterWithSpaces(*cx, *cy, leaf->d.persist.var, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, "{PERSIST}", poweredBefore, poweredAfter);
+// break;
+
+// case ELEM_MOVE: {
+// char top[256];
+// char bot[256];
+// ElemMove *m = &leaf->d.move;
+
+// if((strlen(m->dest) > (POS_WIDTH - 9)) ||
+// (strlen(m->src) > (POS_WIDTH - 9)))
+// {
+// CenterWithWires(*cx, *cy, TOO_LONG, poweredBefore,
+// poweredAfter);
+// break;
+// }
+
+// strcpy(top, "{ }");
+// memcpy(top+1, m->dest, strlen(m->dest));
+// top[strlen(m->dest) + 3] = ':';
+// top[strlen(m->dest) + 4] = '=';
+
+// strcpy(bot, "{ \x01MOV\x02}");
+// memcpy(bot+2, m->src, strlen(m->src));
+
+// CenterWithSpaces(*cx, *cy, top, poweredAfter, FALSE);
+// CenterWithWires(*cx, *cy, bot, poweredBefore, poweredAfter);
+// break;
+// }
+// case ELEM_MASTER_RELAY:
+// CenterWithWires(*cx, *cy, "{MASTER RLY}", poweredBefore,
+// poweredAfter);
+// break;
+
+// case ELEM_SHIFT_REGISTER: {
+// char bot[MAX_NAME_LEN+20];
+// memset(bot, ' ', sizeof(bot));
+// bot[0] = '{';
+// sprintf(bot+2, "%s0..%d", leaf->d.shiftRegister.name,
+// leaf->d.shiftRegister.stages-1);
+// bot[strlen(bot)] = ' ';
+// bot[13] = '}';
+// bot[14] = '\0';
+// CenterWithSpaces(*cx, *cy, "{\x01SHIFT REG\x02 }",
+// poweredAfter, FALSE);
+// CenterWithWires(*cx, *cy, bot, poweredBefore, poweredAfter);
+// break;
+// }
+// case ELEM_PIECEWISE_LINEAR:
+// case ELEM_LOOK_UP_TABLE: {
+// char top[MAX_NAME_LEN+20], bot[MAX_NAME_LEN+20];
+// char *dest, *index, *str;
+// if(which == ELEM_PIECEWISE_LINEAR) {
+// dest = leaf->d.piecewiseLinear.dest;
+// index = leaf->d.piecewiseLinear.index;
+// str = "PWL";
+// } else {
+// dest = leaf->d.lookUpTable.dest;
+// index = leaf->d.lookUpTable.index;
+// str = "LUT";
+// }
+// memset(top, ' ', sizeof(top));
+// top[0] = '{';
+// sprintf(top+2, "%s :=", dest);
+// top[strlen(top)] = ' ';
+// top[13] = '}';
+// top[14] = '\0';
+// CenterWithSpaces(*cx, *cy, top, poweredAfter, FALSE);
+// memset(bot, ' ', sizeof(bot));
+// bot[0] = '{';
+// sprintf(bot+2, " %s[%s]", str, index);
+// bot[strlen(bot)] = ' ';
+// bot[13] = '}';
+// bot[14] = '\0';
+// CenterWithWires(*cx, *cy, bot, poweredBefore, poweredAfter);
+// break;
+// }
+// case ELEM_COIL: {
+// char buf[4];
+// ElemCoil *c = &leaf->d.coil;
+
+// buf[0] = '(';
+// if(c->negated) {
+// buf[1] = '/';
+// } else if(c->setOnly) {
+// buf[1] = 'S';
+// } else if(c->resetOnly) {
+// buf[1] = 'R';
+// } else {
+// buf[1] = ' ';
+// }
+// buf[2] = ')';
+// buf[3] = '\0';
+
+// CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
+// break;
+// }
+// case ELEM_DIV:
+// case ELEM_MUL:
+// case ELEM_SUB:
+// case ELEM_ADD: {
+// char top[POS_WIDTH*2-3+2];
+// char bot[POS_WIDTH*2-3];
+
+// memset(top, ' ', sizeof(top)-1);
+// top[0] = '{';
+
+// memset(bot, ' ', sizeof(bot)-1);
+// bot[0] = '{';
+
+// int lt = 1;
+// if(which == ELEM_ADD) {
+// memcpy(top+lt, "\x01""ADD\x02", 5);
+// } else if(which == ELEM_SUB) {
+// memcpy(top+lt, "\x01SUB\x02", 5);
+// } else if(which == ELEM_MUL) {
+// memcpy(top+lt, "\x01MUL\x02", 5);
+// } else if(which == ELEM_DIV) {
+// memcpy(top+lt, "\x01""DIV\x02", 5);
+// } else oops();
+
+// lt += 7;
+// memcpy(top+lt, leaf->d.math.dest, strlen(leaf->d.math.dest));
+// lt += strlen(leaf->d.math.dest) + 2;
+// top[lt++] = ':';
+// top[lt++] = '=';
+
+// int lb = 2;
+// memcpy(bot+lb, leaf->d.math.op1, strlen(leaf->d.math.op1));
+// lb += strlen(leaf->d.math.op1) + 1;
+// if(which == ELEM_ADD) {
+// bot[lb++] = '+';
+// } else if(which == ELEM_SUB) {
+// bot[lb++] = '-';
+// } else if(which == ELEM_MUL) {
+// bot[lb++] = '*';
+// } else if(which == ELEM_DIV) {
+// bot[lb++] = '/';
+// } else oops();
+// lb++;
+// memcpy(bot+lb, leaf->d.math.op2, strlen(leaf->d.math.op2));
+// lb += strlen(leaf->d.math.op2);
+
+// int l = max(lb, lt - 2);
+// top[l+2] = '}'; top[l+3] = '\0';
+// bot[l] = '}'; bot[l+1] = '\0';
+
+// int extra = 2*POS_WIDTH - FormattedStrlen(top);
+// PoweredText(poweredAfter);
+// DrawChars(*cx + (extra/2), *cy + (POS_HEIGHT/2) - 1, top);
+// CenterWithWiresWidth(*cx, *cy, bot, poweredBefore, poweredAfter,
+// 2*POS_WIDTH);
+
+// *cx += POS_WIDTH;
+
+// break;
+// }
+// default:
+// oops();
+// break;
+// }
+
+// *cx += POS_WIDTH;
+
+// return poweredAfter;
+// }
+
+//-----------------------------------------------------------------------------
+// Draw a leaf element. Special things about a leaf: no need to recurse
+// further, and we must put it into the display matrix.
+//-----------------------------------------------------------------------------
+// static BOOL DrawLeaf(int which, ElemLeaf *leaf, int *cx, int *cy,
+// BOOL poweredBefore)
+// {
+// int cx0 = *cx, cy0 = *cy;
+// BOOL poweredAfter = leaf->poweredAfter;
+
+// switch(which) {
+// case ELEM_COMMENT: {
+// char tbuf[MAX_COMMENT_LEN];
+// char tlbuf[MAX_COMMENT_LEN+8];
+
+// strcpy(tbuf, leaf->d.comment.str);
+// char *b = strchr(tbuf, '\n');
+
+// if(b) {
+// if(b[-1] == '\r') b[-1] = '\0';
+// *b = '\0';
+// sprintf(tlbuf, "\x03 ; %s\x02", tbuf);
+// DrawChars(*cx, *cy + (POS_HEIGHT/2) - 1, tlbuf);
+// sprintf(tlbuf, "\x03 ; %s\x02", b+1);
+// DrawChars(*cx, *cy + (POS_HEIGHT/2), tlbuf);
+// } else {
+// sprintf(tlbuf, "\x03 ; %s\x02", tbuf);
+// DrawChars(*cx, *cy + (POS_HEIGHT/2) - 1, tlbuf);
+// }
+
+// *cx += ColsAvailable*POS_WIDTH;
+// break;
+// }
+// case ELEM_PLACEHOLDER: {
+// NormText();
+// CenterWithWiresWidth(*cx, *cy, "--", FALSE, FALSE, 2);
+// *cx += POS_WIDTH;
+// break;
+// }
+// case ELEM_CONTACTS: {
+// char buf[4];
+// ElemContacts *c = &leaf->d.contacts;
+
+// buf[0] = ']';
+// buf[1] = c->negated ? '/' : ' ';
+// buf[2] = '[';
+// buf[3] = '\0';
+
+// CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
+
+// *cx += POS_WIDTH;
+// break;
+// }
+// {
+// char *s;
+// case ELEM_EQU:
+// s = "=="; goto cmp;
+// case ELEM_NEQ:
+// s = "/="; goto cmp;
+// case ELEM_GRT:
+// s = ">"; goto cmp;
+// case ELEM_GEQ:
+// s = ">="; goto cmp;
+// case ELEM_LES:
+// s = "<"; goto cmp;
+// case ELEM_LEQ:
+// s = "<="; goto cmp;
+// cmp:
+// char s1[POS_WIDTH+10], s2[POS_WIDTH+10];
+// int l1, l2, lmax;
+
+// l1 = 2 + 1 + strlen(s) + strlen(leaf->d.cmp.op1);
+// l2 = 2 + 1 + strlen(leaf->d.cmp.op2);
+// lmax = max(l1, l2);
+
+// if(lmax < POS_WIDTH) {
+// memset(s1, ' ', sizeof(s1));
+// s1[0] = '[';
+// s1[lmax-1] = ']';
+// s1[lmax] = '\0';
+// strcpy(s2, s1);
+// memcpy(s1+1, leaf->d.cmp.op1, strlen(leaf->d.cmp.op1));
+// memcpy(s1+strlen(leaf->d.cmp.op1)+2, s, strlen(s));
+// memcpy(s2+2, leaf->d.cmp.op2, strlen(leaf->d.cmp.op2));
+// } else {
+// strcpy(s1, "");
+// strcpy(s2, TOO_LONG);
+// }
+
+// CenterWithSpaces(*cx, *cy, s1, poweredAfter, FALSE);
+// CenterWithWires(*cx, *cy, s2, poweredBefore, poweredAfter);
+
+// *cx += POS_WIDTH;
+// break;
+// }
+// case ELEM_OPEN:
+// CenterWithWires(*cx, *cy, "+ +", poweredBefore, poweredAfter);
+// *cx += POS_WIDTH;
+// break;
+
+// case ELEM_SHORT:
+// CenterWithWires(*cx, *cy, "+------+", poweredBefore, poweredAfter);
+// *cx += POS_WIDTH;
+// break;
+
+// case ELEM_ONE_SHOT_RISING:
+// case ELEM_ONE_SHOT_FALLING: {
+// char *s1, *s2;
+// if(which == ELEM_ONE_SHOT_RISING) {
+// s1 = " _ ";
+// s2 = "[\x01OSR\x02_/ ]";
+// } else if(which == ELEM_ONE_SHOT_FALLING) {
+// s1 = " _ ";
+// s2 = "[\x01OSF\x02 \\_]";
+// } else oops();
+
+// CenterWithSpaces(*cx, *cy, s1, poweredAfter, FALSE);
+// CenterWithWires(*cx, *cy, s2, poweredBefore, poweredAfter);
+
+// *cx += POS_WIDTH;
+// break;
+// }
+// case ELEM_CTU:
+// case ELEM_CTD: {
+// char *s;
+// if(which == ELEM_CTU)
+// s = "\x01""CTU\x02";
+// else if(which == ELEM_CTD)
+// s = "\x01""CTD\x02";
+// else oops();
+
+// char buf[256];
+// ElemCounter *c = &leaf->d.counter;
+// sprintf(buf, "[%s >=%d]", s, c->max);
+
+// CenterWithSpaces(*cx, *cy, c->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
+
+// *cx += POS_WIDTH;
+// break;
+// }
+// case ELEM_RTO:
+// case ELEM_TON:
+// case ELEM_TOF: {
+// char *s;
+// if(which == ELEM_TON)
+// s = "\x01TON\x02";
+// else if(which == ELEM_TOF)
+// s = "\x01TOF\x02";
+// else if(which == ELEM_RTO)
+// s = "\x01RTO\x02";
+// else oops();
+
+// char buf[256];
+// ElemTimer *t = &leaf->d.timer;
+// if(t->delay >= 1000*1000) {
+// sprintf(buf, "[%s %.3f s]", s, t->delay/1000000.0);
+// } else if(t->delay >= 100*1000) {
+// sprintf(buf, "[%s %.1f ms]", s, t->delay/1000.0);
+// } else {
+// sprintf(buf, "[%s %.2f ms]", s, t->delay/1000.0);
+// }
+
+// CenterWithSpaces(*cx, *cy, t->name, poweredAfter, TRUE);
+// CenterWithWires(*cx, *cy, buf, poweredBefore, poweredAfter);
+
+// *cx += POS_WIDTH;
+// break;
+// }
+// case ELEM_FORMATTED_STRING: {
+// // Careful, string could be longer than fits in our space.
+// char str[POS_WIDTH*2];
+// memset(str, 0, sizeof(str));
+// char *srcStr = leaf->d.fmtdStr.string;
+// memcpy(str, srcStr, min(strlen(srcStr), POS_WIDTH*2 - 7));
+
+// char bot[100];
+// sprintf(bot, "{\"%s\"}", str);
+
+// int extra = 2*POS_WIDTH - strlen(leaf->d.fmtdStr.var);
+// PoweredText(poweredAfter);
+// NameText();
+// DrawChars(*cx + (extra/2), *cy + (POS_HEIGHT/2) - 1,
+// leaf->d.fmtdStr.var);
+// BodyText();
+
+// CenterWithWiresWidth(*cx, *cy, bot, poweredBefore, poweredAfter,
+// 2*POS_WIDTH);
+// *cx += 2*POS_WIDTH;
+// break;
+// }
+// case ELEM_UART_RECV:
+// case ELEM_UART_SEND:
+// CenterWithWires(*cx, *cy,
+// (which == ELEM_UART_RECV) ? "{UART RECV}" : "{UART SEND}",
+// poweredBefore, poweredAfter);
+// CenterWithSpaces(*cx, *cy, leaf->d.uart.name, poweredAfter, TRUE);
+// *cx += POS_WIDTH;
+// break;
+
+// default:
+// poweredAfter = DrawEndOfLine(which, leaf, cx, cy, poweredBefore);
+// break;
+// }
+
+// // And now we can enter the element into the display matrix so that the
+// // UI routines know what element is at position (gx, gy) when the user
+// // clicks there, and so that we know where to put the cursor if this
+// // element is selected.
+
+// // Don't use original cx0, as an end of line element might be further
+// // along than that.
+// cx0 = *cx - POS_WIDTH;
+
+// int gx = cx0/POS_WIDTH;
+// int gy = cy0/POS_HEIGHT;
+// if(CheckBoundsUndoIfFails(gx, gy)) return FALSE;
+// DM_BOUNDS(gx, gy);
+
+// DisplayMatrix[gx][gy] = leaf;
+// DisplayMatrixWhich[gx][gy] = which;
+
+// int xadj = 0;
+// switch(which) {
+// case ELEM_ADD:
+// case ELEM_SUB:
+// case ELEM_MUL:
+// case ELEM_DIV:
+// case ELEM_FORMATTED_STRING:
+// DM_BOUNDS(gx-1, gy);
+// DisplayMatrix[gx-1][gy] = leaf;
+// DisplayMatrixWhich[gx-1][gy] = which;
+// xadj = POS_WIDTH*FONT_WIDTH;
+// break;
+// }
+
+// if(which == ELEM_COMMENT) {
+// int i;
+// for(i = 0; i < ColsAvailable; i++) {
+// DisplayMatrix[i][gy] = leaf;
+// DisplayMatrixWhich[i][gy] = ELEM_COMMENT;
+// }
+// xadj = (ColsAvailable-1)*POS_WIDTH*FONT_WIDTH;
+// }
+
+// int x0 = X_PADDING + cx0*FONT_WIDTH;
+// int y0 = Y_PADDING + cy0*FONT_HEIGHT;
+
+// if(leaf->selectedState != SELECTED_NONE && leaf == Selected) {
+// SelectionActive = TRUE;
+// }
+// switch(leaf->selectedState) {
+// case SELECTED_LEFT:
+// Cursor.left = x0 + FONT_WIDTH - 4 - xadj;
+// Cursor.top = y0 - FONT_HEIGHT/2;
+// Cursor.width = 2;
+// Cursor.height = POS_HEIGHT*FONT_HEIGHT;
+// break;
+
+// case SELECTED_RIGHT:
+// Cursor.left = x0 + (POS_WIDTH-1)*FONT_WIDTH - 5;
+// Cursor.top = y0 - FONT_HEIGHT/2;
+// Cursor.width = 2;
+// Cursor.height = POS_HEIGHT*FONT_HEIGHT;
+// break;
+
+// case SELECTED_ABOVE:
+// Cursor.left = x0 + FONT_WIDTH/2 - xadj;
+// Cursor.top = y0 - 2;
+// Cursor.width = (POS_WIDTH-2)*FONT_WIDTH + xadj;
+// Cursor.height = 2;
+// break;
+
+// case SELECTED_BELOW:
+// Cursor.left = x0 + FONT_WIDTH/2 - xadj;
+// Cursor.top = y0 + (POS_HEIGHT-1)*FONT_HEIGHT +
+// FONT_HEIGHT/2 - 2;
+// Cursor.width = (POS_WIDTH-2)*(FONT_WIDTH) + xadj;
+// Cursor.height = 2;
+// break;
+
+// default:
+// break;
+// }
+
+// return poweredAfter;
+// }
+
+//-----------------------------------------------------------------------------
+// Draw a particular subcircuit with its top left corner at *cx and *cy (in
+// characters). If it is a leaf element then just print it and return; else
+// loop over the elements of the subcircuit and call ourselves recursively.
+// At the end updates *cx and *cy.
+//
+// In simulation mode, returns TRUE the circuit is energized after the given
+// element, else FALSE. This is needed to colour all the wires correctly,
+// since the colouring indicates whether a wire is energized.
+//-----------------------------------------------------------------------------
+BOOL DrawElement(int which, void *elem, int *cx, int *cy, BOOL poweredBefore)
+{
+// BOOL poweredAfter;
+
+// int cx0 = *cx, cy0 = *cy;
+// ElemLeaf *leaf = (ElemLeaf *)elem;
+
+// SetBkColor(Hdc, InSimulationMode ? HighlightColours.simBg :
+// HighlightColours.bg);
+// NormText();
+
+// if(elem == Selected && !InSimulationMode) {
+// EmphText();
+// ThisHighlighted = TRUE;
+// } else {
+// ThisHighlighted = FALSE;
+// }
+
+// switch(which) {
+// case ELEM_SERIES_SUBCKT: {
+// int i;
+// ElemSubcktSeries *s = (ElemSubcktSeries *)elem;
+// poweredAfter = poweredBefore;
+// for(i = 0; i < s->count; i++) {
+// poweredAfter = DrawElement(s->contents[i].which,
+// s->contents[i].d.any, cx, cy, poweredAfter);
+// }
+// break;
+// }
+// case ELEM_PARALLEL_SUBCKT: {
+// int i;
+// ElemSubcktParallel *p = (ElemSubcktParallel *)elem;
+// int widthMax = CountWidthOfElement(which, elem, (*cx)/POS_WIDTH);
+// int heightMax = CountHeightOfElement(which, elem);
+
+// poweredAfter = FALSE;
+
+// int lowestPowered = -1;
+// int downBy = 0;
+// for(i = 0; i < p->count; i++) {
+// BOOL poweredThis;
+
+// poweredThis = DrawElement(p->contents[i].which,
+// p->contents[i].d.any, cx, cy, poweredBefore);
+
+// if(InSimulationMode) {
+// if(poweredThis) poweredAfter = TRUE;
+// PoweredText(poweredThis);
+// }
+
+// while((*cx - cx0) < widthMax*POS_WIDTH) {
+// int gx = *cx/POS_WIDTH;
+// int gy = *cy/POS_HEIGHT;
+
+// if(CheckBoundsUndoIfFails(gx, gy)) return FALSE;
+
+// DM_BOUNDS(gx, gy);
+// DisplayMatrix[gx][gy] = PADDING_IN_DISPLAY_MATRIX;
+// DisplayMatrixWhich[gx][gy] = ELEM_PADDING;
+
+// char buf[256];
+// int j;
+// for(j = 0; j < POS_WIDTH; j++) {
+// buf[j] = '-';
+// }
+// buf[j] = '\0';
+// DrawChars(*cx, *cy + (POS_HEIGHT/2), buf);
+// *cx += POS_WIDTH;
+// }
+
+// *cx = cx0;
+// int justDrewHeight = CountHeightOfElement(p->contents[i].which,
+// p->contents[i].d.any);
+// *cy += POS_HEIGHT*justDrewHeight;
+
+// downBy += justDrewHeight;
+// if(poweredThis) {
+// lowestPowered = downBy - 1;
+// }
+// }
+// *cx = cx0 + POS_WIDTH*widthMax;
+// *cy = cy0;
+
+// int j;
+// BOOL needWire;
+
+// if(*cx/POS_WIDTH != ColsAvailable) {
+// needWire = FALSE;
+// for(j = heightMax - 1; j >= 1; j--) {
+// if(j <= lowestPowered) PoweredText(poweredAfter);
+// if(DisplayMatrix[*cx/POS_WIDTH - 1][*cy/POS_HEIGHT + j]) {
+// needWire = TRUE;
+// }
+// if(needWire) VerticalWire(*cx - 1, *cy + j*POS_HEIGHT);
+// }
+// // stupid special case
+// if(lowestPowered == 0 && InSimulationMode) {
+// EmphText();
+// DrawChars(*cx - 1, *cy + (POS_HEIGHT/2), "+");
+// }
+// }
+
+// PoweredText(poweredBefore);
+// needWire = FALSE;
+// for(j = heightMax - 1; j >= 1; j--) {
+// if(DisplayMatrix[cx0/POS_WIDTH][*cy/POS_HEIGHT + j]) {
+// needWire = TRUE;
+// }
+// if(needWire) VerticalWire(cx0 - 1, *cy + j*POS_HEIGHT);
+// }
+
+// break;
+// }
+// default:
+// poweredAfter = DrawLeaf(which, leaf, cx, cy, poweredBefore);
+// break;
+// }
+
+
+// NormText();
+// return poweredAfter;
+}
+
+//-----------------------------------------------------------------------------
+// Draw the rung that signals the end of the program. Kind of useless but
+// do it anyways, for convention.
+//-----------------------------------------------------------------------------
+void DrawEndRung(int cx, int cy)
+{
+// int i;
+// char *str = "[END]";
+// int lead = (POS_WIDTH - strlen(str))/2;
+// ThisHighlighted = TRUE;
+// for(i = 0; i < lead; i++) {
+// DrawChars(cx + i, cy + (POS_HEIGHT/2), "-");
+// }
+// DrawChars(cx + i, cy + (POS_HEIGHT/2), str);
+// i += strlen(str);
+// for(; i < ColsAvailable*POS_WIDTH; i++) {
+// DrawChars(cx + i, cy + (POS_HEIGHT/2), "-");
+// }
+}