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4ae87da58c
If a gas-switch is removed we have to perform the same action as if a gas-switch is added: fixup the dive and signal the changed cylinder and stats. Adapt the RemoveEvent command accordingly. Copy the code of the AddGasSwitch command and simplify for the fact that only ony cylinder can be affected. Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>
104 lines
2.9 KiB
C++
104 lines
2.9 KiB
C++
// SPDX-License-Identifier: GPL-2.0
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// Note: this header file is used by the undo-machinery and should not be included elsewhere.
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#ifndef COMMAND_EVENT_H
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#define COMMAND_EVENT_H
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#include "command_base.h"
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// We put everything in a namespace, so that we can shorten names without polluting the global namespace
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namespace Command {
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// Events are a strange thing: they contain there own description which means
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// that on changing the description a new object must be allocated. Moreover,
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// it means that these objects can't be collected in a table.
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// Therefore, the undo commands work on events as they do with dives: using
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// owning pointers. See comments in command_base.h
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class EventBase : public Base {
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protected:
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EventBase(struct dive *d, int dcNr);
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void undo() override;
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void redo() override;
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virtual void redoit() = 0;
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virtual void undoit() = 0;
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// Note: we store dive and the divecomputer-number instead of a pointer to the divecomputer.
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// Since one divecomputer is integrated into the dive structure, pointers to divecomputers
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// are probably not stable.
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struct dive *d;
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int dcNr;
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private:
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void updateDive();
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};
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class AddEventBase : public EventBase {
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public:
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AddEventBase(struct dive *d, int dcNr, struct event *ev); // Takes ownership of event!
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private:
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bool workToBeDone() override;
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void undoit() override;
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void redoit() override;
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OwningEventPtr eventToAdd; // for redo
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event *eventToRemove; // for undo
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};
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class AddEventBookmark : public AddEventBase {
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public:
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AddEventBookmark(struct dive *d, int dcNr, int seconds);
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};
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class AddEventDivemodeSwitch : public AddEventBase {
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public:
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AddEventDivemodeSwitch(struct dive *d, int dcNr, int seconds, int divemode);
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};
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class AddEventSetpointChange : public AddEventBase {
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public:
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AddEventSetpointChange(struct dive *d, int dcNr, int seconds, pressure_t pO2);
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};
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class RenameEvent : public EventBase {
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public:
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RenameEvent(struct dive *d, int dcNr, struct event *ev, const char *name);
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private:
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bool workToBeDone() override;
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void undoit() override;
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void redoit() override;
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OwningEventPtr eventToAdd; // for undo and redo
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event *eventToRemove; // for undo and redo
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};
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class RemoveEvent : public EventBase {
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public:
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RemoveEvent(struct dive *d, int dcNr, struct event *ev);
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private:
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bool workToBeDone() override;
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void undoit() override;
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void redoit() override;
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void post() const; // Called to fix up dives should a gas-change have happened.
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OwningEventPtr eventToAdd; // for undo
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event *eventToRemove; // for redo
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int cylinder; // affected cylinder (if removing gas switch). <0: not a gas switch.
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};
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class AddGasSwitch : public EventBase {
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public:
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AddGasSwitch(struct dive *d, int dcNr, int seconds, int tank);
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private:
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bool workToBeDone() override;
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void undoit() override;
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void redoit() override;
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std::vector<int> cylinders; // cylinders that are modified
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std::vector<OwningEventPtr> eventsToAdd;
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std::vector<event *> eventsToRemove;
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};
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} // namespace Command
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#endif // COMMAND_EVENT_H
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