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LibGUI: Add a top-left-corner button to table views

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If both the row and column headers are visible, we now also show a
button in the top left corner. This avoids the headers overlapping
each other when you scroll the contents.

In the future, this could be hooked up to a "select all" action.
This commit is contained in:
Andreas Kling 2020-08-26 16:34:10 +02:00
parent 8cacac32b5
commit 9a0f40d4b5
2 changed files with 14 additions and 1 deletions
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14
Libraries/LibGUI/AbstractTableView.cpp
View file

@ -28,6 +28,7 @@
#include <AK/Vector.h>
#include <LibGUI/AbstractTableView.h>
#include <LibGUI/Action.h>
#include <LibGUI/Button.h>
#include <LibGUI/HeaderView.h>
#include <LibGUI/Menu.h>
#include <LibGUI/Model.h>
@ -40,6 +41,10 @@ namespace GUI {
AbstractTableView::AbstractTableView()
{
m_corner_button = add<Button>();
m_corner_button->move_to_back();
m_corner_button->set_background_role(Gfx::ColorRole::ThreedShadow1);
m_corner_button->set_fill_with_background_color(true);
m_column_header = add<HeaderView>(*this, Gfx::Orientation::Horizontal);
m_column_header->move_to_back();
m_row_header = add<HeaderView>(*this, Gfx::Orientation::Vertical);
@ -296,7 +301,7 @@ Gfx::IntRect AbstractTableView::content_rect(const ModelIndex& index) const
Gfx::IntRect AbstractTableView::row_rect(int item_index) const
{
return { row_header().is_visible() ? row_header().width() : 0 , column_header().height() + (item_index * item_height()), max(content_size().width(), width()), item_height() };
return { row_header().is_visible() ? row_header().width() : 0, column_header().height() + (item_index * item_height()), max(content_size().width(), width()), item_height() };
}
Gfx::IntPoint AbstractTableView::adjusted_position(const Gfx::IntPoint& position) const
@ -360,6 +365,13 @@ void AbstractTableView::layout_headers()
int y = (frame_thickness() + (column_header().is_visible() ? column_header().height() : 0)) + -vertical_scrollbar().value();
row_header().set_relative_rect(x, y, row_header().preferred_size().width(), content_height());
}
if (row_header().is_visible() && column_header().is_visible()) {
m_corner_button->set_relative_rect(frame_thickness(), frame_thickness(), row_header().width(), column_header().height());
m_corner_button->set_visible(true);
} else {
m_corner_button->set_visible(false);
}
}
}