kicad/common/tool/action_manager.cpp

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/*
* This program source code file is part of KiCad, a free EDA CAD application.
*
* Copyright (C) 2013 CERN
* @author Maciej Suminski <maciej.suminski@cern.ch>
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, you may find one here:
* http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
* or you may search the http://www.gnu.org website for the version 2 license,
* or you may write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
*/
#include <tool/action_manager.h>
#include <tool/tool_manager.h>
#include <tool/tool_action.h>
#include <draw_frame.h>
#include <hotkeys_basic.h>
#include <cctype>
#include <cassert>
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ACTION_MANAGER::ACTION_MANAGER( TOOL_MANAGER* aToolManager ) :
m_toolMgr( aToolManager )
{
// Register known actions
std::list<TOOL_ACTION*>& actionList = GetActionList();
for( TOOL_ACTION* action : actionList )
{
if( action->m_id == -1 )
action->m_id = MakeActionId( action->m_name );
RegisterAction( new TOOL_ACTION( *action ) );
}
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}
ACTION_MANAGER::~ACTION_MANAGER()
{
while( !m_actionNameIndex.empty() )
{
TOOL_ACTION* action = m_actionNameIndex.begin()->second;
UnregisterAction( action );
delete action;
}
}
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void ACTION_MANAGER::RegisterAction( TOOL_ACTION* aAction )
{
// TOOL_ACTIONs are supposed to be named [appName.]toolName.actionName (with dots between)
// action name without specifying at least toolName is not valid
assert( aAction->GetName().find( '.', 0 ) != std::string::npos );
// TOOL_ACTIONs must have unique names & ids
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assert( m_actionNameIndex.find( aAction->m_name ) == m_actionNameIndex.end() );
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m_actionNameIndex[aAction->m_name] = aAction;
}
void ACTION_MANAGER::UnregisterAction( TOOL_ACTION* aAction )
{
m_actionNameIndex.erase( aAction->m_name );
int hotkey = GetHotKey( *aAction );
if( hotkey )
{
std::list<TOOL_ACTION*>& actions = m_actionHotKeys[hotkey];
std::list<TOOL_ACTION*>::iterator action = std::find( actions.begin(), actions.end(), aAction );
if( action != actions.end() )
actions.erase( action );
else
assert( false );
}
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}
int ACTION_MANAGER::MakeActionId( const std::string& aActionName )
{
static int currentActionId = 1;
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return currentActionId++;
}
TOOL_ACTION* ACTION_MANAGER::FindAction( const std::string& aActionName ) const
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{
std::map<std::string, TOOL_ACTION*>::const_iterator it = m_actionNameIndex.find( aActionName );
if( it != m_actionNameIndex.end() )
return it->second;
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return NULL;
}
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bool ACTION_MANAGER::RunHotKey( int aHotKey ) const
{
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int key = aHotKey & ~MD_MODIFIER_MASK;
int mod = aHotKey & MD_MODIFIER_MASK;
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if( key >= 'a' && key <= 'z' )
key = std::toupper( key );
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HOTKEY_LIST::const_iterator it = m_actionHotKeys.find( key | mod );
// If no luck, try without Shift, to handle keys that require it
// e.g. to get ? you need to press Shift+/ without US keyboard layout
// Hardcoding ? as Shift+/ is a bad idea, as on another layout you may need to press a
// different combination
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if( it == m_actionHotKeys.end() )
{
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it = m_actionHotKeys.find( key | ( mod & ~MD_SHIFT ) );
if( it == m_actionHotKeys.end() )
return false; // no appropriate action found for the hotkey
}
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const std::list<TOOL_ACTION*>& actions = it->second;
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// Choose the action that has the highest priority on the active tools stack
// If there is none, run the global action associated with the hot key
int highestPriority = -1, priority = -1;
const TOOL_ACTION* context = NULL; // pointer to context action of the highest priority tool
const TOOL_ACTION* global = NULL; // pointer to global action, if there is no context action
for( const TOOL_ACTION* action : actions )
{
if( action->GetScope() == AS_GLOBAL )
{
// Store the global action for the hot key in case there was no possible
// context actions to run
assert( global == NULL ); // there should be only one global action per hot key
global = action;
continue;
}
TOOL_BASE* tool = m_toolMgr->FindTool( action->GetToolName() );
if( tool )
{
// Choose the action that goes to the tool with highest priority
// (i.e. is on the top of active tools stack)
priority = m_toolMgr->GetPriority( tool->GetId() );
if( priority >= 0 && priority > highestPriority )
{
highestPriority = priority;
context = action;
}
}
}
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if( context )
{
m_toolMgr->RunAction( *context, true );
return true;
}
else if( global )
{
m_toolMgr->RunAction( *global, true );
return true;
}
return false;
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}
int ACTION_MANAGER::GetHotKey( const TOOL_ACTION& aAction ) const
{
std::map<int, int>::const_iterator it = m_hotkeys.find( aAction.GetId() );
if( it == m_hotkeys.end() )
return 0;
return it->second;
}
void ACTION_MANAGER::UpdateHotKeys()
{
m_actionHotKeys.clear();
m_hotkeys.clear();
for( const auto& actionName : m_actionNameIndex )
{
TOOL_ACTION* action = actionName.second;
int hotkey = processHotKey( action );
if( hotkey > 0 )
{
m_actionHotKeys[hotkey].push_back( action );
m_hotkeys[action->GetId()] = hotkey;
}
}
#ifdef DEBUG
// Check if there are two global actions assigned to the same hotkey
for( const auto& action_list : m_actionHotKeys )
{
int global_actions_cnt = 0;
for( const TOOL_ACTION* action : action_list.second )
{
if( action->GetScope() == AS_GLOBAL )
++global_actions_cnt;
}
assert( global_actions_cnt <= 1 );
}
#endif /* not NDEBUG */
}
int ACTION_MANAGER::processHotKey( TOOL_ACTION* aAction )
{
int hotkey = aAction->getDefaultHotKey();
if( ( hotkey & TOOL_ACTION::LEGACY_HK ) )
{
hotkey = hotkey & ~TOOL_ACTION::LEGACY_HK; // it leaves only HK_xxx identifier
EDA_DRAW_FRAME* frame = static_cast<EDA_DRAW_FRAME*>( m_toolMgr->GetEditFrame() );
EDA_HOTKEY* hk_desc = frame->GetHotKeyDescription( hotkey );
if( hk_desc )
{
hotkey = hk_desc->m_KeyCode;
// Convert modifiers to the ones used by the Tool Framework
if( hotkey & GR_KB_CTRL )
{
hotkey &= ~GR_KB_CTRL;
hotkey |= MD_CTRL;
}
if( hotkey & GR_KB_ALT )
{
hotkey &= ~GR_KB_ALT;
hotkey |= MD_ALT;
}
if( hotkey & GR_KB_SHIFT )
{
hotkey &= ~GR_KB_SHIFT;
hotkey |= MD_SHIFT;
}
}
else
{
hotkey = 0;
}
}
return hotkey;
}