Aegisub/aegisub/src/toolbar.cpp

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// Copyright (c) 2011, Thomas Goyne <plorkyeran@aegisub.org>
//
// Permission to use, copy, modify, and distribute this software for any
// purpose with or without fee is hereby granted, provided that the above
// copyright notice and this permission notice appear in all copies.
//
// THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
// WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
// MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
// ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
// WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
// ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
// OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
//
// $Id$
/// @file menutool.cpp
/// @brief Dynamic menu toolbar generator.
/// @ingroup toolbar menu
#include "config.h"
#include "command/command.h"
#include "include/aegisub/context.h"
#include "include/aegisub/toolbar.h"
#include "libresrc/libresrc.h"
#include "main.h"
#ifndef AGI_PRE
#include <vector>
#include <wx/toolbar.h>
#endif
#include <libaegisub/json.h>
#include <libaegisub/signal.h>
namespace {
json::Object const& get_root() {
static json::Object root;
if (root.Empty()) {
root = agi::json_util::parse(new std::istringstream(GET_DEFAULT_CONFIG(default_toolbar)));
}
return root;
}
class Toolbar : public wxToolBar {
/// Window ID of first toolbar control
static const int TOOL_ID_BASE = 5000;
/// Toolbar name in config file
std::string name;
/// Project context
agi::Context *context;
/// Commands for each of the buttons
std::vector<cmd::Command *> commands;
/// Listener for icon size change signal
agi::signal::Connection icon_size_slot;
/// Enable/disable the toolbar buttons
void OnIdle(wxIdleEvent &) {
for (size_t i = 0; i < commands.size(); ++i) {
if (commands[i]->Type() & cmd::COMMAND_VALIDATE) {
EnableTool(TOOL_ID_BASE + i, commands[i]->Validate(context));
}
if (commands[i]->Type() & cmd::COMMAND_TOGGLE) {
ToggleTool(TOOL_ID_BASE + i, commands[i]->IsActive(context));
}
}
}
/// Toolbar button click handler
void OnClick(wxCommandEvent &evt) {
(*commands[evt.GetId() - TOOL_ID_BASE])(context);
}
/// Clear the toolbar and recreate it with the new icon size
void OnIconSizeChanged() {
Unbind(wxEVT_IDLE, &Toolbar::OnIdle, this);
ClearTools();
commands.clear();
Populate();
}
/// Populate the toolbar with buttons
void Populate() {
json::Object const& root = get_root();
json::Object::const_iterator it = root.Find(name);
if (it == root.End()) {
// Toolbar names are all hardcoded so this should never happen
throw agi::InternalError("Toolbar named " + name + " not found.", 0);
}
int icon_size = OPT_GET("App/Toolbar Icon Size")->GetInt();
json::Array arr = it->element;
commands.reserve(arr.Size());
bool needs_onidle = false;
for (json::Array::const_iterator it = arr.Begin(); it != arr.End(); ++it) {
json::String const& command_name = *it;
if (command_name.Value().empty()) {
AddSeparator();
}
else {
cmd::Command *command = cmd::get(command_name.Value());
wxBitmap *bitmap = command->Icon(icon_size);
// this hack is needed because ???
wxBitmap icon = bitmap->GetSubBitmap(wxRect(0, 0, bitmap->GetWidth(), bitmap->GetHeight()));
int flags = command->Type();
wxItemKind kind =
flags & cmd::COMMAND_RADIO ? wxITEM_RADIO :
flags & cmd::COMMAND_TOGGLE ? wxITEM_CHECK :
wxITEM_NORMAL;
AddTool(TOOL_ID_BASE + commands.size(), command->StrMenu(), icon, command->StrHelp(), kind);
commands.push_back(command);
needs_onidle = needs_onidle || flags != cmd::COMMAND_NORMAL;
}
}
// Only bind the update function if there are actually any dynamic tools
if (needs_onidle) {
Bind(wxEVT_IDLE, &Toolbar::OnIdle, this);
}
Realize();
}
public:
Toolbar(wxWindow *parent, std::string const& name, agi::Context *c)
: wxToolBar(parent, -1, wxDefaultPosition, wxDefaultSize, wxTB_FLAT | wxTB_HORIZONTAL)
, name(name)
, context(c)
, icon_size_slot(OPT_SUB("App/Toolbar Icon Size", &Toolbar::OnIconSizeChanged, this))
{
Populate();
Bind(wxEVT_COMMAND_TOOL_CLICKED, &Toolbar::OnClick, this);
}
};
}
namespace toolbar {
void AttachToolbar(wxFrame *frame, std::string const& name, agi::Context *c) {
frame->SetToolBar(new Toolbar(frame, name, c));
}
}