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LibGUI: Move visual line metadata from GTextDocument to GTextEditor

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This patch decouples GTextDocument and GTextDocumentLine from the line
wrapping functionality of GTextEditor.

This should basically make it possible to have multiple GTextEditors
editing the same GTextDocument. Of course, that will require a bit more
work since there's no paint invalidation yet.
This commit is contained in:
Andreas Kling
2019-10-27 18:00:07 +01:00
parent f1c6193d6d
commit f96c683543
4 changed files with 187 additions and 82 deletions
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62
Libraries/LibGUI/GTextDocument.cpp
View File

@@ -1,24 +1,26 @@
#include <LibGUI/GTextDocument.h>
#include <ctype.h>
GTextDocument::GTextDocument(GTextEditor& editor)
: m_editor(editor)
GTextDocument::GTextDocument(Client* client)
{
m_lines.append(make<GTextDocumentLine>(m_editor));
if (client)
m_clients.set(client);
append_line(make<GTextDocumentLine>());
}
void GTextDocument::set_text(const StringView& text)
{
m_spans.clear();
m_lines.clear();
remove_all_lines();
int start_of_current_line = 0;
auto add_line = [&](int current_position) {
int line_length = current_position - start_of_current_line;
auto line = make<GTextDocumentLine>(m_editor);
auto line = make<GTextDocumentLine>();
if (line_length)
line->set_text(text.substring_view(start_of_current_line, current_position - start_of_current_line));
m_lines.append(move(line));
append_line(move(line));
start_of_current_line = current_position + 1;
};
int i = 0;
@@ -38,14 +40,12 @@ int GTextDocumentLine::first_non_whitespace_column() const
return length();
}
GTextDocumentLine::GTextDocumentLine(GTextEditor& editor)
: m_editor(editor)
GTextDocumentLine::GTextDocumentLine()
{
clear();
}
GTextDocumentLine::GTextDocumentLine(GTextEditor& editor, const StringView& text)
: m_editor(editor)
GTextDocumentLine::GTextDocumentLine(const StringView& text)
{
set_text(text);
}
@@ -111,3 +111,45 @@ void GTextDocumentLine::truncate(int length)
m_text.resize(length + 1);
m_text.last() = 0;
}
void GTextDocument::append_line(NonnullOwnPtr<GTextDocumentLine> line)
{
lines().append(move(line));
for (auto* client : m_clients)
client->document_did_append_line();
}
void GTextDocument::insert_line(int line_index, NonnullOwnPtr<GTextDocumentLine> line)
{
lines().insert(line_index, move(line));
for (auto* client : m_clients)
client->document_did_insert_line(line_index);
}
void GTextDocument::remove_line(int line_index)
{
lines().remove(line_index);
for (auto* client : m_clients)
client->document_did_remove_line(line_index);
}
void GTextDocument::remove_all_lines()
{
lines().clear();
for (auto* client : m_clients)
client->document_did_remove_all_lines();
}
GTextDocument::Client::~Client()
{
}
void GTextDocument::register_client(Client& client)
{
m_clients.set(&client);
}
void GTextDocument::unregister_client(Client& client)
{
m_clients.remove(&client);
}