schematic.cpp

plc软件的源代码 支持PIC ATMEGA单片机

            if(!Selected || Selected->selectedState == SELECTED_NONE) {
                break;
            }
            if(Selected->selectedState != SELECTED_BELOW &&
                SelectedWhich != ELEM_PLACEHOLDER)
            {
                SelectElement(-1, -1, SELECTED_BELOW);
                break;
            }
            int i, j;
            if(FindSelected(&i, &j)) {
                j++;
                while(j < DISPLAY_MATRIX_Y_SIZE && 
                    !VALID_LEAF(DisplayMatrix[i][j]))
                {
                    j++;
                }
                if(j != DISPLAY_MATRIX_Y_SIZE) {
                    SelectElement(i, j, SELECTED_ABOVE);
                } else if(ScrollYOffsetMax - ScrollYOffset < 3) {
                    // special case: scroll the end marker into view
                    ScrollYOffset = ScrollYOffsetMax;
                    RefreshScrollbars();
                }
            }
            break;
        }
    }
}

//-----------------------------------------------------------------------------
// Edit the selected element. Pop up the appropriate modal dialog box to do
// this.
//-----------------------------------------------------------------------------
void EditSelectedElement(void)
{
    if(!Selected || Selected->selectedState == SELECTED_NONE) return;

    switch(SelectedWhich) {
        case ELEM_COMMENT:
            ShowCommentDialog(Selected->d.comment.str);
            break;

        case ELEM_CONTACTS:
            ShowContactsDialog(&(Selected->d.contacts.negated),
                Selected->d.contacts.name);
            break;

        case ELEM_COIL:
            ShowCoilDialog(&(Selected->d.coil.negated),
                &(Selected->d.coil.setOnly), &(Selected->d.coil.resetOnly),
                Selected->d.coil.name);
            break;

        case ELEM_TON:
        case ELEM_TOF:
        case ELEM_RTO:
            ShowTimerDialog(SelectedWhich, &(Selected->d.timer.delay),
                Selected->d.timer.name);
            break;

        case ELEM_CTU:
        case ELEM_CTD:
        case ELEM_CTC:
            ShowCounterDialog(SelectedWhich, &(Selected->d.counter.max),
                Selected->d.counter.name);
            break;

        case ELEM_EQU:
        case ELEM_NEQ:
        case ELEM_GRT:
        case ELEM_GEQ:
        case ELEM_LES:
        case ELEM_LEQ:
            ShowCmpDialog(SelectedWhich, Selected->d.cmp.op1,
                Selected->d.cmp.op2);
            break;

        case ELEM_ADD:
        case ELEM_SUB:
        case ELEM_MUL:
        case ELEM_DIV:
            ShowMathDialog(SelectedWhich, Selected->d.math.dest, 
                Selected->d.math.op1, Selected->d.math.op2);
            break;

        case ELEM_RES:
            ShowResetDialog(Selected->d.reset.name);
            break;

        case ELEM_MOVE:
            ShowMoveDialog(Selected->d.move.dest, Selected->d.move.src);
            break;

        case ELEM_SET_PWM:
            ShowSetPwmDialog(Selected->d.setPwm.name,
                &(Selected->d.setPwm.targetFreq));
            break;

        case ELEM_READ_ADC:
            ShowReadAdcDialog(Selected->d.readAdc.name+1);
            break;

        case ELEM_UART_RECV:
        case ELEM_UART_SEND:
            ShowUartDialog(SelectedWhich, Selected->d.uart.name);
            break;

        case ELEM_PERSIST:
            ShowPersistDialog(Selected->d.persist.var);
            break;

        case ELEM_SHIFT_REGISTER:
            ShowShiftRegisterDialog(Selected->d.shiftRegister.name,
                &(Selected->d.shiftRegister.stages));
            break;

        case ELEM_FORMATTED_STRING:
            ShowFormattedStringDialog(Selected->d.fmtdStr.var,
                Selected->d.fmtdStr.string);
            break;

        case ELEM_PIECEWISE_LINEAR:
            ShowPiecewiseLinearDialog(Selected);
            break;

        case ELEM_LOOK_UP_TABLE:
            ShowLookUpTableDialog(Selected);
            break;
    }
}

//-----------------------------------------------------------------------------
// Edit the element under the mouse cursor. This will typically be the
// selected element, since the first click would have selected it. If there
// is no element under the mouser cursor then do nothing; do not edit the
// selected element (which is elsewhere on screen), as that would be
// confusing.
//-----------------------------------------------------------------------------
void EditElementMouseDoubleclick(int x, int y)
{
    x += ScrollXOffset;

    y += FONT_HEIGHT/2;

    int gx = (x - X_PADDING)/(POS_WIDTH*FONT_WIDTH);
    int gy = (y - Y_PADDING)/(POS_HEIGHT*FONT_HEIGHT);

    gy += ScrollYOffset;

    if(InSimulationMode) {
        ElemLeaf *l = DisplayMatrix[gx][gy];
        if(l && DisplayMatrixWhich[gx][gy] == ELEM_CONTACTS) {
            char *name = l->d.contacts.name;
            if(name[0] == 'X') {
                SimulationToggleContact(name);
            } 
        } else if(l && DisplayMatrixWhich[gx][gy] == ELEM_READ_ADC) {
            ShowAnalogSliderPopup(l->d.readAdc.name);
        }
    } else {
        if(DisplayMatrix[gx][gy] == Selected) {
            EditSelectedElement();
        }
    }
}

//-----------------------------------------------------------------------------
// Move the cursor in response to a mouse click. If they clicked in a leaf
// element box then figure out which edge they're closest too (with appropriate
// fudge factors to make all edges equally easy to click on) and put the
// cursor there.
//-----------------------------------------------------------------------------
void MoveCursorMouseClick(int x, int y)
{
    x += ScrollXOffset;

    y += FONT_HEIGHT/2;

    int gx0 = (x - X_PADDING)/(POS_WIDTH*FONT_WIDTH);
    int gy0 = (y - Y_PADDING)/(POS_HEIGHT*FONT_HEIGHT);

    int gx = gx0;
    int gy = gy0 + ScrollYOffset;

    if(VALID_LEAF(DisplayMatrix[gx][gy])) {
        int i, j;
        for(i = 0; i < DISPLAY_MATRIX_X_SIZE; i++) {
            for(j = 0; j < DISPLAY_MATRIX_Y_SIZE; j++) {
                if(DisplayMatrix[i][j])
                    DisplayMatrix[i][j]->selectedState = SELECTED_NONE;
            }
        }
        int dx = x - (gx0*POS_WIDTH*FONT_WIDTH + X_PADDING);
        int dy = y - (gy0*POS_HEIGHT*FONT_HEIGHT + Y_PADDING);

        int dtop = dy;
        int dbottom = POS_HEIGHT*FONT_HEIGHT - dy;
        int dleft = dx;
        int dright = POS_WIDTH*FONT_WIDTH - dx;

        int extra = 1;
        if(DisplayMatrixWhich[gx][gy] == ELEM_COMMENT) {
            dleft += gx*POS_WIDTH*FONT_WIDTH;
            dright += (ColsAvailable - gx - 1)*POS_WIDTH*FONT_WIDTH;
            extra = ColsAvailable;
        } else {
            if((gx > 0) && (DisplayMatrix[gx-1][gy] == DisplayMatrix[gx][gy])) {
                dleft += POS_WIDTH*FONT_WIDTH;
                extra = 2;
            }
            if((gx < (DISPLAY_MATRIX_X_SIZE-1)) && 
                (DisplayMatrix[gx+1][gy] == DisplayMatrix[gx][gy]))
            {
                dright += POS_WIDTH*FONT_WIDTH;
                extra = 2;
            }
        }

        int decideX = (dright - dleft);
        int decideY = (dtop - dbottom);

        decideY = decideY*3*extra;

        int state;
        if(abs(decideY) > abs(decideX)) {
            if(decideY > 0) {
                state = SELECTED_BELOW;
            } else {
                state = SELECTED_ABOVE;
            }
        } else {
            if(decideX > 0) {
                state = SELECTED_LEFT;
            } else {
                state = SELECTED_RIGHT;
            }
        }
        SelectElement(gx, gy, state);
    }
}

//-----------------------------------------------------------------------------
// Place the cursor as near to the given point on the grid as possible. Used
// after deleting an element, for example.
//-----------------------------------------------------------------------------
void MoveCursorNear(int gx, int gy)
{
    int out = 0;

    for(out = 0; out < 8; out++) {
        if(gx - out >= 0) {
            if(VALID_LEAF(DisplayMatrix[gx-out][gy])) {
                SelectElement(gx-out, gy, SELECTED_RIGHT);
                return;
            }
        }
        if(gx + out < DISPLAY_MATRIX_X_SIZE) {
            if(VALID_LEAF(DisplayMatrix[gx+out][gy])) {
                SelectElement(gx+out, gy, SELECTED_LEFT);
                return;
            }
        }
        if(gy - out >= 0) {
            if(VALID_LEAF(DisplayMatrix[gx][gy-out])) {
                SelectElement(gx, gy-out, SELECTED_BELOW);
                return;
            }
        }
        if(gy + out < DISPLAY_MATRIX_Y_SIZE) {
            if(VALID_LEAF(DisplayMatrix[gx][gy+out])) {
                SelectElement(gx, gy+out, SELECTED_ABOVE);
                return;
            }
        }

        if(out == 1) {
            // Now see if we have a straight shot to the right; might be far
            // if we have to go up to a coil or other end of line element.
            int across;
            for(across = 1; gx+across < DISPLAY_MATRIX_X_SIZE; across++) {
                if(VALID_LEAF(DisplayMatrix[gx+across][gy])) {
                    SelectElement(gx+across, gy, SELECTED_LEFT);
                    return;
                }
                if(!DisplayMatrix[gx+across][gy]) break;
            }
        }
    }

    MoveCursorTopLeft();
}

//-----------------------------------------------------------------------------
// Negate the selected item, if this is meaningful.
//-----------------------------------------------------------------------------
void NegateSelected(void)
{
    switch(SelectedWhich) {
        case ELEM_CONTACTS:
            Selected->d.contacts.negated = TRUE;
            break;

        case ELEM_COIL: {
            ElemCoil *c = &Selected->d.coil;
            c->negated = TRUE;
            c->resetOnly = FALSE;
            c->setOnly = FALSE;
            break;
        }
        default:
            break;
    }
}

//-----------------------------------------------------------------------------
// Make the item selected normal: not negated, not set/reset only.
//-----------------------------------------------------------------------------
void MakeNormalSelected(void)
{
    switch(SelectedWhich) {
        case ELEM_CONTACTS:
            Selected->d.contacts.negated = FALSE;
            break;

        case ELEM_COIL: {
            ElemCoil *c = &Selected->d.coil;
            c->negated = FALSE;
            c->setOnly = FALSE;
            c->resetOnly = FALSE;
            break;
        }
        default:
            break;
    }
}

//-----------------------------------------------------------------------------
// Make the selected item set-only, if it is a coil.
//-----------------------------------------------------------------------------
void MakeSetOnlySelected(void)
{
    if(SelectedWhich != ELEM_COIL) return;

    ElemCoil *c = &Selected->d.coil;
    c->setOnly = TRUE;
    c->resetOnly = FALSE;
    c->negated = FALSE;
}

//-----------------------------------------------------------------------------
// Make the selected item reset-only, if it is a coil.
//-----------------------------------------------------------------------------
void MakeResetOnlySelected(void)
{
    if(SelectedWhich != ELEM_COIL) return;

    ElemCoil *c = &Selected->d.coil;
    c->resetOnly = TRUE;
    c->setOnly = FALSE;
    c->negated = FALSE;
}