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https://github.com/thiagoralves/OpenPLC.git
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0543021448
- Corrected buffer declaration on OPLC Compiler - Changed OPLC Compiler folder name - Corrected FC 04 on Modbus
88 lines
3.0 KiB
C++
Executable File
88 lines
3.0 KiB
C++
Executable File
//-----------------------------------------------------------------------------
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// Copyright 2015 Thiago Alves
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//
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// Based on the LDmicro software by Jonathan Westhues
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// This file is part of OPLC Compiler.
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//
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// OPLC Compiler is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// OPLC Compiler is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with OPLC Compiler. If not, see <http://www.gnu.org/licenses/>.
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//------
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//
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// Stuff for managing the schematic, mostly related to allocating memory
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// to the circuit matrix.
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// Actual manipulation of circuit elements happens in circuit.cpp, though.
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// Thiago Alves, Oct 2015
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//-----------------------------------------------------------------------------
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using namespace std;
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#include <stddef.h>
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#include <string.h>
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#include "oplc_compiler.h"
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// Not all options all available e.g. can't delete the only relay coil in
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// a rung, can't insert two coils in series, etc. Keep track of what is
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// allowed so we don't corrupt our program.
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BOOL CanInsertEnd;
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BOOL CanInsertOther;
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BOOL CanInsertComment;
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// Ladder logic program is laid out on a grid program; this matrix tells
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// us which leaf element is in which box on the grid, which allows us
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// to determine what element has just been selected when the user clicks
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// on something, for example.
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ElemLeaf *DisplayMatrix[DISPLAY_MATRIX_X_SIZE][DISPLAY_MATRIX_Y_SIZE];
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int DisplayMatrixWhich[DISPLAY_MATRIX_X_SIZE][DISPLAY_MATRIX_Y_SIZE];
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ElemLeaf *Selected;
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int SelectedWhich;
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ElemLeaf DisplayMatrixFiller;
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//-----------------------------------------------------------------------------
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// Rub out everything from DisplayMatrix. If we don't do that before freeing
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// the program (e.g. when loading a new file) then there is a race condition
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// when we repaint.
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//-----------------------------------------------------------------------------
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void ForgetEverything(void)
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{
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memset(DisplayMatrix, 0, sizeof(DisplayMatrix));
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memset(DisplayMatrixWhich, 0, sizeof(DisplayMatrixWhich));
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Selected = NULL;
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SelectedWhich = 0;
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}
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//-----------------------------------------------------------------------------
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// Rub out freed element from the DisplayMatrix, just so we don't confuse
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// ourselves too much (or access freed memory)...
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//-----------------------------------------------------------------------------
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void ForgetFromGrid(void *p)
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{
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int i, j;
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for(i = 0; i < DISPLAY_MATRIX_X_SIZE; i++)
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{
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for(j = 0; j < DISPLAY_MATRIX_Y_SIZE; j++)
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{
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if(DisplayMatrix[i][j] == p)
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{
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DisplayMatrix[i][j] = NULL;
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}
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}
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}
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if(Selected == p)
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{
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Selected = NULL;
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}
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}
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