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/*
* EEZ Generic Firmware
* Copyright (C) 2021-present, Envox d.o.o.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 3 of the License, or
* (at your option) any later version.
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
#pragma once
#include <eez/gui/assets.h>
#include <eez/flow/debugger.h>
namespace eez {
namespace flow {
using eez::gui::Value;
using eez::gui::Assets;
using eez::gui::FlowDefinition;
using eez::gui::Flow;
using eez::gui::Component;
using eez::gui::ComponentOutput;
using eez::gui::WidgetCursor;
static const int UNDEFINED_VALUE_INDEX = 0;
static const int NULL_VALUE_INDEX = 1;
struct ComponenentExecutionState {
virtual ~ComponenentExecutionState() {}
};
struct CatchErrorComponenentExecutionState : public ComponenentExecutionState {
Value message;
};
struct FlowState {
uint32_t flowStateIndex;
Assets *assets;
FlowDefinition *flowDefinition;
Flow *flow;
uint16_t flowIndex;
bool isAction;
uint16_t error;
uint32_t numAsyncComponents;
FlowState *parentFlowState;
Component *parentComponent;
int parentComponentIndex;
Value *values;
ComponenentExecutionState **componenentExecutionStates;
bool *componenentAsyncStates;
float timelinePosition;
FlowState *firstChild;
FlowState *lastChild;
FlowState *previousSibling;
FlowState *nextSibling;
};
extern int g_selectedLanguage;
extern FlowState *g_firstFlowState;
extern FlowState *g_lastFlowState;
FlowState *initActionFlowState(int flowIndex, FlowState *parentFlowState, int parentComponentIndex);
FlowState *initPageFlowState(Assets *assets, int flowIndex, FlowState *parentFlowState, int parentComponentIndex);
bool canFreeFlowState(FlowState *flowState, bool includingWatchVariable = true);
void freeFlowState(FlowState *flowState);
void deallocateComponentExecutionState(FlowState *flowState, unsigned componentIndex);
template<class T>
T *allocateComponentExecutionState(FlowState *flowState, unsigned componentIndex) {
if (flowState->componenentExecutionStates[componentIndex]) {
deallocateComponentExecutionState(flowState, componentIndex);
}
auto executionState = ObjectAllocator<T>::allocate(0x72dc3bf4);
flowState->componenentExecutionStates[componentIndex] = executionState;
onComponentExecutionStateChanged(flowState, componentIndex);
return executionState;
}
void propagateValue(FlowState *flowState, unsigned componentIndex, unsigned outputIndex, const gui::Value &value);
void propagateValue(FlowState *flowState, unsigned componentIndex, unsigned outputIndex); // propagates null value
void propagateValueThroughSeqout(FlowState *flowState, unsigned componentIndex); // propagates null value through @seqout (0-th output)
void getValue(uint16_t dataId, eez::gui::DataOperationEnum operation, const WidgetCursor &widgetCursor, Value &value);
void setValue(uint16_t dataId, const WidgetCursor &widgetCursor, const Value& value);
void assignValue(FlowState *flowState, int componentIndex, Value &dstValue, const Value &srcValue);
void startAsyncExecution(FlowState *flowState, int componentIndex);
void endAsyncExecution(FlowState *flowState, int componentIndex);
void executeCallAction(FlowState *flowState, unsigned componentIndex, int flowIndex);
enum FlowEvent {
FLOW_EVENT_OPEN_PAGE,
FLOW_EVENT_CLOSE_PAGE
};
void onEvent(FlowState *flowState, FlowEvent flowEvent);
void throwError(FlowState *flowState, int componentIndex, const char *errorMessage);
void throwError(FlowState *flowState, int componentIndex, const char *errorMessage, const char *errorMessageDescription);
} // flow
} // eez