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LibGUI: Remove leading G from filenames

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Andreas Kling 2020-02-06 20:33:02 +01:00
parent 2e219255a2
commit 6a9cc66b97
316 changed files with 965 additions and 966 deletions
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504
Libraries/LibGUI/GTreeView.cpp
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@ -1,504 +0,0 @@
/*
* Copyright (c) 2018-2020, Andreas Kling <kling@serenityos.org>
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* 1. Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <LibGfx/Palette.h>
#include <LibGUI/GPainter.h>
#include <LibGUI/GScrollBar.h>
#include <LibGUI/GTreeView.h>
//#define DEBUG_ITEM_RECTS
namespace GUI {
struct TreeView::MetadataForIndex {
bool open { false };
};
TreeView::MetadataForIndex& TreeView::ensure_metadata_for_index(const ModelIndex& index) const
{
ASSERT(index.is_valid());
auto it = m_view_metadata.find(index.internal_data());
if (it != m_view_metadata.end())
return *it->value;
auto new_metadata = make<MetadataForIndex>();
auto& new_metadata_ref = *new_metadata;
m_view_metadata.set(index.internal_data(), move(new_metadata));
return new_metadata_ref;
}
TreeView::TreeView(Widget* parent)
: AbstractTableView(parent)
{
set_background_role(ColorRole::Base);
set_foreground_role(ColorRole::BaseText);
set_size_columns_to_fit_content(true);
set_headers_visible(false);
m_expand_bitmap = Gfx::Bitmap::load_from_file("/res/icons/treeview-expand.png");
m_collapse_bitmap = Gfx::Bitmap::load_from_file("/res/icons/treeview-collapse.png");
}
TreeView::~TreeView()
{
}
ModelIndex TreeView::index_at_event_position(const Gfx::Point& a_position, bool& is_toggle) const
{
auto position = a_position.translated(0, -header_height()).translated(horizontal_scrollbar().value() - frame_thickness(), vertical_scrollbar().value() - frame_thickness());
is_toggle = false;
if (!model())
return {};
ModelIndex result;
traverse_in_paint_order([&](const ModelIndex& index, const Gfx::Rect& rect, const Gfx::Rect& toggle_rect, int) {
if (toggle_rect.contains(position)) {
result = index;
is_toggle = true;
return IterationDecision::Break;
}
if (rect.contains_vertically(position.y())) {
result = index;
return IterationDecision::Break;
}
return IterationDecision::Continue;
});
return result;
}
void TreeView::doubleclick_event(MouseEvent& event)
{
if (!model())
return;
auto& model = *this->model();
bool is_toggle;
auto index = index_at_event_position(event.position(), is_toggle);
if (!index.is_valid())
return;
if (event.button() == MouseButton::Left) {
if (selection().first() != index)
selection().set(index);
if (model.row_count(index))
toggle_index(index);
else
activate(index);
}
}
void TreeView::toggle_index(const ModelIndex& index)
{
ASSERT(model()->row_count(index));
auto& metadata = ensure_metadata_for_index(index);
metadata.open = !metadata.open;
update_column_sizes();
update_content_size();
update();
}
template<typename Callback>
void TreeView::traverse_in_paint_order(Callback callback) const
{
ASSERT(model());
auto& model = *this->model();
int indent_level = 1;
int y_offset = 0;
int tree_column = model.tree_column();
int tree_column_x_offset = 0;
for (int i = 0; i < tree_column; ++i) {
if (!is_column_hidden(i))
tree_column_x_offset += column_width(i);
}
Function<IterationDecision(const ModelIndex&)> traverse_index = [&](const ModelIndex& index) {
int row_count_at_index = model.row_count(index);
if (index.is_valid()) {
auto& metadata = ensure_metadata_for_index(index);
int x_offset = tree_column_x_offset + horizontal_padding() + indent_level * indent_width_in_pixels();
auto node_text = model.data(index, Model::Role::Display).to_string();
Gfx::Rect rect = {
x_offset, y_offset,
icon_size() + icon_spacing() + text_padding() + font().width(node_text) + text_padding(), item_height()
};
Gfx::Rect toggle_rect;
if (row_count_at_index > 0) {
int toggle_x = tree_column_x_offset + horizontal_padding() + indent_width_in_pixels() * indent_level - icon_size() / 2 - 4;
toggle_rect = { toggle_x, rect.y(), toggle_size(), toggle_size() };
toggle_rect.center_vertically_within(rect);
}
if (callback(index, rect, toggle_rect, indent_level) == IterationDecision::Break)
return IterationDecision::Break;
y_offset += item_height();
// NOTE: Skip traversing children if this index is closed!
if (!metadata.open)
return IterationDecision::Continue;
}
++indent_level;
int row_count = model.row_count(index);
for (int i = 0; i < row_count; ++i) {
if (traverse_index(model.index(i, model.tree_column(), index)) == IterationDecision::Break)
return IterationDecision::Break;
}
--indent_level;
return IterationDecision::Continue;
};
int root_count = model.row_count();
for (int root_index = 0; root_index < root_count; ++root_index) {
if (traverse_index(model.index(root_index, model.tree_column(), ModelIndex())) == IterationDecision::Break)
break;
}
}
void TreeView::paint_event(PaintEvent& event)
{
Frame::paint_event(event);
Painter painter(*this);
painter.add_clip_rect(frame_inner_rect());
painter.add_clip_rect(event.rect());
painter.fill_rect(event.rect(), palette().color(background_role()));
if (!model())
return;
auto& model = *this->model();
painter.translate(frame_inner_rect().location());
painter.translate(-horizontal_scrollbar().value(), -vertical_scrollbar().value());
auto visible_content_rect = this->visible_content_rect();
int tree_column = model.tree_column();
int tree_column_x_offset = 0;
for (int i = 0; i < tree_column; ++i) {
if (!is_column_hidden(i))
tree_column_x_offset += column_width(i);
}
int y_offset = header_height();
int painted_row_index = 0;
traverse_in_paint_order([&](const ModelIndex& index, const Gfx::Rect& a_rect, const Gfx::Rect& a_toggle_rect, int indent_level) {
if (!a_rect.intersects_vertically(visible_content_rect))
return IterationDecision::Continue;
auto rect = a_rect.translated(0, y_offset);
auto toggle_rect = a_toggle_rect.translated(0, y_offset);
#ifdef DEBUG_ITEM_RECTS
painter.fill_rect(rect, Color::WarmGray);
#endif
bool is_selected_row = selection().contains(index);
Color text_color = palette().color(foreground_role());
if (is_selected_row)
text_color = Color::White;
Color background_color;
Color key_column_background_color;
if (is_selected_row) {
background_color = is_focused() ? palette().selection() : Color::from_rgb(0x606060);
key_column_background_color = is_focused() ? palette().selection() : Color::from_rgb(0x606060);
} else {
if (alternating_row_colors() && (painted_row_index % 2)) {
background_color = Color(220, 220, 220);
key_column_background_color = Color(200, 200, 200);
} else {
background_color = palette().color(background_role());
key_column_background_color = Color(220, 220, 220);
}
}
Gfx::Rect row_rect { 0, rect.y(), frame_inner_rect().width(), rect.height() };
painter.fill_rect(row_rect, background_color);
int x_offset = 0;
for (int column_index = 0; column_index < model.column_count(); ++column_index) {
if (is_column_hidden(column_index))
continue;
auto column_metadata = model.column_metadata(column_index);
int column_width = this->column_width(column_index);
auto& font = column_metadata.font ? *column_metadata.font : this->font();
painter.draw_rect(toggle_rect, text_color);
if (column_index != tree_column) {
Gfx::Rect cell_rect(horizontal_padding() + x_offset, rect.y(), column_width, item_height());
auto cell_index = model.sibling(index.row(), column_index, index.parent());
if (auto* delegate = column_data(column_index).cell_painting_delegate.ptr()) {
delegate->paint(painter, cell_rect, palette(), model, cell_index);
} else {
auto data = model.data(cell_index);
if (data.is_bitmap()) {
painter.blit(cell_rect.location(), data.as_bitmap(), data.as_bitmap().rect());
} else if (data.is_icon()) {
if (auto bitmap = data.as_icon().bitmap_for_size(16))
painter.blit(cell_rect.location(), *bitmap, bitmap->rect());
} else {
if (!is_selected_row)
text_color = model.data(cell_index, Model::Role::ForegroundColor).to_color(palette().color(foreground_role()));
painter.draw_text(cell_rect, data.to_string(), font, column_metadata.text_alignment, text_color, Gfx::TextElision::Right);
}
}
} else {
// It's the tree column!
Gfx::Rect icon_rect = { rect.x(), rect.y(), icon_size(), icon_size() };
auto icon = model.data(index, Model::Role::Icon);
if (icon.is_icon()) {
if (auto* bitmap = icon.as_icon().bitmap_for_size(icon_size()))
painter.blit(icon_rect.location(), *bitmap, bitmap->rect());
}
Gfx::Rect text_rect = {
icon_rect.right() + 1 + icon_spacing(), rect.y(),
rect.width() - icon_size() - icon_spacing(), rect.height()
};
auto node_text = model.data(index, Model::Role::Display).to_string();
painter.draw_text(text_rect, node_text, Gfx::TextAlignment::Center, text_color);
auto index_at_indent = index;
for (int i = indent_level; i > 0; --i) {
auto parent_of_index_at_indent = index_at_indent.parent();
bool index_at_indent_is_last_in_parent = index_at_indent.row() == model.row_count(parent_of_index_at_indent) - 1;
Gfx::Point a { tree_column_x_offset + horizontal_padding() + indent_width_in_pixels() * i - icon_size() / 2, rect.y() - 2 };
Gfx::Point b { a.x(), a.y() + item_height() - 1 };
if (index_at_indent_is_last_in_parent)
b.set_y(rect.center().y());
if (!(i != indent_level && index_at_indent_is_last_in_parent))
painter.draw_line(a, b, Color::MidGray);
if (i == indent_level) {
Gfx::Point c { a.x(), rect.center().y() };
Gfx::Point d { c.x() + icon_size() / 2, c.y() };
painter.draw_line(c, d, Color::MidGray);
}
index_at_indent = parent_of_index_at_indent;
}
if (!toggle_rect.is_empty()) {
auto& metadata = ensure_metadata_for_index(index);
if (metadata.open)
painter.blit(toggle_rect.location(), *m_collapse_bitmap, m_collapse_bitmap->rect());
else
painter.blit(toggle_rect.location(), *m_expand_bitmap, m_expand_bitmap->rect());
}
}
x_offset += column_width + horizontal_padding() * 2;
}
return IterationDecision::Continue;
});
// Untranslate the painter vertically and do the column headers.
painter.translate(0, vertical_scrollbar().value());
paint_headers(painter);
}
void TreeView::scroll_into_view(const ModelIndex& a_index, Orientation orientation)
{
if (!a_index.is_valid())
return;
Gfx::Rect found_rect;
traverse_in_paint_order([&](const ModelIndex& index, const Gfx::Rect& rect, const Gfx::Rect&, int) {
if (index == a_index) {
found_rect = rect;
return IterationDecision::Break;
}
return IterationDecision::Continue;
});
ScrollableWidget::scroll_into_view(found_rect, orientation);
}
void TreeView::did_update_model()
{
m_view_metadata.clear();
AbstractTableView::did_update_model();
}
void TreeView::did_update_selection()
{
AbstractView::did_update_selection();
ASSERT(model());
auto index = selection().first();
if (!index.is_valid())
return;
#if 0
bool opened_any = false;
for (auto current = index; current.is_valid(); current = current.parent()) {
auto& metadata_for_ancestor = ensure_metadata_for_index(current);
if (!metadata_for_ancestor.open) {
metadata_for_ancestor.open = true;
opened_any = true;
}
}
if (opened_any)
update_content_size();
update();
#endif
if (activates_on_selection())
activate(index);
}
void TreeView::keydown_event(KeyEvent& event)
{
if (!model())
return;
auto cursor_index = selection().first();
if (event.key() == KeyCode::Key_Space) {
if (model()->row_count(cursor_index))
toggle_index(cursor_index);
return;
}
if (event.key() == KeyCode::Key_Up) {
ModelIndex previous_index;
ModelIndex found_index;
traverse_in_paint_order([&](const ModelIndex& index, const Gfx::Rect&, const Gfx::Rect&, int) {
if (index == cursor_index) {
found_index = previous_index;
return IterationDecision::Break;
}
previous_index = index;
return IterationDecision::Continue;
});
if (found_index.is_valid()) {
selection().set(found_index);
update();
}
return;
}
if (event.key() == KeyCode::Key_Down) {
ModelIndex previous_index;
ModelIndex found_index;
traverse_in_paint_order([&](const ModelIndex& index, const Gfx::Rect&, const Gfx::Rect&, int) {
if (previous_index == cursor_index) {
found_index = index;
return IterationDecision::Break;
}
previous_index = index;
return IterationDecision::Continue;
});
if (found_index.is_valid())
selection().set(found_index);
return;
}
auto open_tree_node = [&](bool open, MetadataForIndex& metadata) {
metadata.open = open;
update_column_sizes();
update_content_size();
update();
};
if (event.key() == KeyCode::Key_Left) {
if (cursor_index.is_valid() && model()->row_count(cursor_index)) {
auto& metadata = ensure_metadata_for_index(cursor_index);
if (metadata.open)
open_tree_node(false, metadata);
return;
}
}
if (event.key() == KeyCode::Key_Right) {
if (cursor_index.is_valid() && model()->row_count(cursor_index)) {
auto& metadata = ensure_metadata_for_index(cursor_index);
if (!metadata.open)
open_tree_node(true, metadata);
return;
}
}
if (event.key() == KeyCode::Key_Return) {
if (cursor_index.is_valid() && model()->row_count(cursor_index)) {
auto& metadata = ensure_metadata_for_index(cursor_index);
open_tree_node(!metadata.open, metadata);
return;
}
}
}
int TreeView::item_count() const
{
int count = 0;
traverse_in_paint_order([&](const ModelIndex&, const Gfx::Rect&, const Gfx::Rect&, int) {
++count;
return IterationDecision::Continue;
});
return count;
}
void TreeView::update_column_sizes()
{
if (!size_columns_to_fit_content())
return;
if (!model())
return;
auto& model = *this->model();
int column_count = model.column_count();
int row_count = model.row_count();
int tree_column = model.tree_column();
int tree_column_x_offset = 0;
for (int column = 0; column < column_count; ++column) {
if (column == tree_column)
continue;
if (is_column_hidden(column))
continue;
int header_width = header_font().width(model.column_name(column));
int column_width = header_width;
for (int row = 0; row < row_count; ++row) {
auto cell_data = model.data(model.index(row, column));
int cell_width = 0;
if (cell_data.is_bitmap()) {
cell_width = cell_data.as_bitmap().width();
} else {
cell_width = font().width(cell_data.to_string());
}
column_width = max(column_width, cell_width);
}
auto& column_data = this->column_data(column);
column_data.width = max(column_data.width, column_width);
column_data.has_initialized_width = true;
if (column < tree_column)
tree_column_x_offset += column_width;
}
int tree_column_header_width = header_font().width(model.column_name(tree_column));
int tree_column_width = tree_column_header_width;
traverse_in_paint_order([&](const ModelIndex&, const Gfx::Rect& rect, const Gfx::Rect&, int) {
tree_column_width = max(rect.right() - tree_column_x_offset, tree_column_width);
return IterationDecision::Continue;
});
auto& column_data = this->column_data(tree_column);
column_data.width = max(column_data.width, tree_column_width);
column_data.has_initialized_width = true;
}
}