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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
Notes: sideshowbarker 2024-07-19 14:54:19 +09:00
10 changed files with 94 additions and 34 deletions
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28
LibGUI/GItemView.cpp
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@ -74,7 +74,7 @@ void GItemView::mousedown_event(GMouseEvent& event)
auto adjusted_position = event.position().translated(0, vertical_scrollbar().value());
for (int i = 0; i < item_count(); ++i) {
if (item_rect(i).contains(adjusted_position)) {
model()->set_selected_index({ i, 0 });
model()->set_selected_index(model()->index(i, 0));
update();
return;
}
@ -117,7 +117,7 @@ void GItemView::paint_event(GPaintEvent& event)
}
Rect item_rect = this->item_rect(item_index);
GModelIndex model_index(item_index, m_model_column);
auto model_index = model()->index(item_index, m_model_column);
auto icon = model()->data(model_index, GModel::Role::Icon);
auto item_text = model()->data(model_index, GModel::Role::Display);
@ -165,7 +165,7 @@ void GItemView::keydown_event(GKeyEvent& event)
return;
}
if (event.key() == KeyCode::Key_Home) {
GModelIndex new_index { 0, 0 };
auto new_index = model.index(0, 0);
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -174,7 +174,7 @@ void GItemView::keydown_event(GKeyEvent& event)
return;
}
if (event.key() == KeyCode::Key_End) {
GModelIndex new_index { model.row_count() - 1, 0 };
auto new_index = model.index(model.row_count() - 1, 0);
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -185,9 +185,9 @@ void GItemView::keydown_event(GKeyEvent& event)
if (event.key() == KeyCode::Key_Up) {
GModelIndex new_index;
if (model.selected_index().is_valid())
new_index = { model.selected_index().row() - m_visual_column_count, model.selected_index().column() };
new_index = model.index(model.selected_index().row() - m_visual_column_count, model.selected_index().column());
else
new_index = { 0, 0 };
new_index = model.index(0, 0);
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -198,9 +198,9 @@ void GItemView::keydown_event(GKeyEvent& event)
if (event.key() == KeyCode::Key_Down) {
GModelIndex new_index;
if (model.selected_index().is_valid())
new_index = { model.selected_index().row() + m_visual_column_count, model.selected_index().column() };
new_index = model.index(model.selected_index().row() + m_visual_column_count, model.selected_index().column());
else
new_index = { 0, 0 };
new_index = model.index(0, 0);
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -211,9 +211,9 @@ void GItemView::keydown_event(GKeyEvent& event)
if (event.key() == KeyCode::Key_Left) {
GModelIndex new_index;
if (model.selected_index().is_valid())
new_index = { model.selected_index().row() - 1, model.selected_index().column() };
new_index = model.index(model.selected_index().row() - 1, model.selected_index().column());
else
new_index = { 0, 0 };
new_index = model.index(0, 0);
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -224,9 +224,9 @@ void GItemView::keydown_event(GKeyEvent& event)
if (event.key() == KeyCode::Key_Right) {
GModelIndex new_index;
if (model.selected_index().is_valid())
new_index = { model.selected_index().row() + 1, model.selected_index().column() };
new_index = model.index(model.selected_index().row() + 1, model.selected_index().column());
else
new_index = { 0, 0 };
new_index = model.index(0, 0);
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -236,7 +236,7 @@ void GItemView::keydown_event(GKeyEvent& event)
}
if (event.key() == KeyCode::Key_PageUp) {
int items_per_page = (visible_content_rect().height() / effective_item_size().height()) * m_visual_column_count;
GModelIndex new_index(max(0, model.selected_index().row() - items_per_page), model.selected_index().column());
auto new_index = model.index(max(0, model.selected_index().row() - items_per_page), model.selected_index().column());
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);
@ -246,7 +246,7 @@ void GItemView::keydown_event(GKeyEvent& event)
}
if (event.key() == KeyCode::Key_PageDown) {
int items_per_page = (visible_content_rect().height() / effective_item_size().height()) * m_visual_column_count;
GModelIndex new_index(min(model.row_count() - 1, model.selected_index().row() + items_per_page), model.selected_index().column());
auto new_index = model.index(min(model.row_count() - 1, model.selected_index().row() + items_per_page), model.selected_index().column());
if (model.is_valid(new_index)) {
model.set_selected_index(new_index);
scroll_into_view(new_index, Orientation::Vertical);