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LibGUI: Expand GModelIndex a bit, adding internal data and model pointers.

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This will be useful for implementing more complicated models.
This commit is contained in:
Andreas Kling 2019-03-29 04:58:15 +01:00
parent 12ec55ee74
commit d02238af48
10 changed files with 94 additions and 34 deletions
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20
LibGUI/GModelIndex.h
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@ -1,21 +1,31 @@
#pragma once
class GModel;
class GModelIndex {
friend class GModel;
public:
GModelIndex() { }
GModelIndex(int row, int column)
: m_row(row)
, m_column(column)
{
}
bool is_valid() const { return m_row != -1 && m_column != -1; }
int row() const { return m_row; }
int column() const { return m_column; }
void* internal_data() const { return m_internal_data; }
bool operator==(const GModelIndex& other) const { return m_row == other.m_row && m_column == other.m_column; }
private:
GModelIndex(const GModel& model, int row, int column, void* internal_data)
: m_model(&model)
, m_row(row)
, m_column(column)
, m_internal_data(internal_data)
{
}
const GModel* m_model { nullptr };
int m_row { -1 };
int m_column { -1 };
void* m_internal_data { nullptr };
};