finalcut/src/fstatusbar.cpp

682 lines
15 KiB
C++

/***********************************************************************
* fstatusbar.cpp - Widget FStatusBar and FStatusKey *
* *
* This file is part of the Final Cut widget toolkit *
* *
* Copyright 2014-2018 Markus Gans *
* *
* The Final Cut is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Lesser General Public License *
* as published by the Free Software Foundation; either version 3 of *
* the License, or (at your option) any later version. *
* *
* The Final Cut 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 Lesser General Public License for more details. *
* *
* You should have received a copy of the GNU Lesser General Public *
* License along with this program. If not, see *
* <http://www.gnu.org/licenses/>. *
***********************************************************************/
#include <vector>
#include "final/fstatusbar.h"
namespace finalcut
{
//----------------------------------------------------------------------
// class FStatusKey
//----------------------------------------------------------------------
// constructor and destructor
//----------------------------------------------------------------------
FStatusKey::FStatusKey(FWidget* parent)
: FWidget(parent)
{
init (parent);
}
//----------------------------------------------------------------------
FStatusKey::FStatusKey (FKey k, const FString& txt, FWidget* parent)
: FWidget(parent)
, key(k)
, text(txt)
{
init (parent);
}
//----------------------------------------------------------------------
FStatusKey::~FStatusKey() // destructor
{
if ( getConnectedStatusbar() )
getConnectedStatusbar()->remove(this);
delAccelerator();
}
// public methods of FStatusKey
//----------------------------------------------------------------------
void FStatusKey::onAccel (FAccelEvent* ev)
{
if ( isActivated() )
return;
setActive();
if ( getConnectedStatusbar() )
getConnectedStatusbar()->redraw();
ev->accept();
// unset after get back from callback
unsetActive();
if ( getConnectedStatusbar() )
getConnectedStatusbar()->redraw();
}
//----------------------------------------------------------------------
void FStatusKey::setActive()
{
active = true;
processActivate();
}
//----------------------------------------------------------------------
bool FStatusKey::setMouseFocus(bool on)
{
if ( on == mouse_focus )
return true;
return (mouse_focus = on);
}
// private methods of FStatusKey
//----------------------------------------------------------------------
void FStatusKey::init (FWidget* parent)
{
setGeometry (1, 1, 1, 1);
if ( parent && parent->isInstanceOf("FStatusBar") )
{
setConnectedStatusbar (static_cast<FStatusBar*>(parent));
if ( getConnectedStatusbar() )
getConnectedStatusbar()->insert(this);
}
}
//----------------------------------------------------------------------
void FStatusKey::processActivate()
{
emitCallback("activate");
}
//----------------------------------------------------------------------
// class FStatusBar
//----------------------------------------------------------------------
// constructor and destructor
//----------------------------------------------------------------------
FStatusBar::FStatusBar(FWidget* parent)
: FWindow(parent)
{
init();
}
//----------------------------------------------------------------------
FStatusBar::~FStatusBar() // destructor
{
// delete all keys
if ( ! key_list.empty() )
{
auto iter = key_list.begin();
while ( iter != key_list.end() )
{
(*iter)->setConnectedStatusbar(0);
delAccelerator (*iter);
iter = key_list.erase(iter);
}
}
setStatusBar(0);
}
// public methods of FStatusBar
//----------------------------------------------------------------------
void FStatusBar::setMessage (const FString& mgs)
{
text = mgs;
}
//----------------------------------------------------------------------
bool FStatusBar::hasActivatedKey()
{
if ( ! key_list.empty() )
{
for (auto&& k : key_list)
if ( k->isActivated() )
return true;
}
return false;
}
//----------------------------------------------------------------------
void FStatusBar::hide()
{
FWindow::hide();
FColor fg = wc.term_fg;
FColor bg = wc.term_bg;
setColor (fg, bg);
screenWidth = getDesktopWidth();
auto blank = createBlankArray(screenWidth + 1);
setPrintPos (1, 1);
print (blank);
destroyBlankArray (blank);
}
//----------------------------------------------------------------------
void FStatusBar::drawMessage()
{
std::size_t termWidth;
int space_offset;
bool isLastActiveFocus, hasKeys;
if ( ! (isVisible() ) )
return;
if ( x < 0 || x_msg < 0 )
return;
x = x_msg;
termWidth = getDesktopWidth();
space_offset = 1;
hasKeys = bool(! key_list.empty());
if ( hasKeys )
{
auto iter = key_list.end();
isLastActiveFocus = bool ( (*(iter - 1))->isActivated()
|| (*(iter - 1))->hasMouseFocus() );
}
else
isLastActiveFocus = false;
if ( isLastActiveFocus )
space_offset = 0;
setColor (wc.statusbar_fg, wc.statusbar_bg);
setPrintPos (x, 1);
if ( isMonochron() )
setReverse(true);
if ( x + space_offset + 3 < int(termWidth) )
{
if ( text )
{
if ( ! isLastActiveFocus )
{
x++;
print (' ');
}
if ( hasKeys )
{
x += 2;
print (fc::BoxDrawingsVertical); // │
print (' ');
}
std::size_t msg_length = getMessage().getLength();
x += int(msg_length);
if ( x - 1 <= int(termWidth) )
print (getMessage());
else
{
// Print ellipsis
print ( getMessage().left(msg_length + termWidth - uInt(x) - 1) );
print ("..");
}
}
}
for (int i = x; i <= int(termWidth); i++)
print (' ');
if ( isMonochron() )
setReverse(false);
}
//----------------------------------------------------------------------
void FStatusBar::insert (FStatusKey* skey)
{
key_list.push_back (skey);
addAccelerator (skey->getKey(), skey);
skey->addCallback
(
"activate",
F_METHOD_CALLBACK (this, &FStatusBar::cb_statuskey_activated)
);
}
//----------------------------------------------------------------------
void FStatusBar::remove (FStatusKey* skey)
{
delAccelerator (skey);
if ( key_list.empty() )
return;
auto iter = key_list.begin();
while ( iter != key_list.end() )
{
if ( (*iter) == skey )
{
iter = key_list.erase(iter);
skey->setConnectedStatusbar(0);
break;
}
else
++iter;
}
}
//----------------------------------------------------------------------
void FStatusBar::remove (int pos)
{
if ( int(getCount()) < pos )
return;
key_list.erase (key_list.begin() + pos - 1);
}
//----------------------------------------------------------------------
void FStatusBar::clear()
{
key_list.clear();
}
//----------------------------------------------------------------------
void FStatusBar::adjustSize()
{
setGeometry (1, int(getDesktopHeight()), getDesktopWidth(), 1, false);
}
//----------------------------------------------------------------------
void FStatusBar::onMouseDown (FMouseEvent* ev)
{
if ( hasActivatedKey() )
return;
if ( ev->getButton() != fc::LeftButton )
{
mouse_down = false;
if ( ! key_list.empty() )
{
auto iter = key_list.begin();
auto last = key_list.end();
while ( iter != last )
{
(*iter)->unsetMouseFocus();
++iter;
}
}
redraw();
return;
}
if ( mouse_down )
return;
mouse_down = true;
if ( ! key_list.empty() )
{
int X = 1;
auto iter = key_list.begin();
auto last = key_list.end();
while ( iter != last )
{
int x1 = X
, kname_len = int(getKeyName((*iter)->getKey()).getLength())
, txt_length = int((*iter)->getText().getLength())
, x2 = x1 + kname_len + txt_length + 1
, mouse_x = ev->getX()
, mouse_y = ev->getY();
if ( mouse_x >= x1
&& mouse_x <= x2
&& mouse_y == 1
&& ! (*iter)->hasMouseFocus() )
{
(*iter)->setMouseFocus();
redraw();
}
X = x2 + 2;
++iter;
}
}
}
//----------------------------------------------------------------------
void FStatusBar::onMouseUp (FMouseEvent* ev)
{
if ( hasActivatedKey() )
return;
if ( ev->getButton() != fc::LeftButton )
return;
if ( mouse_down )
{
mouse_down = false;
if ( ! key_list.empty() )
{
int X = 1;
auto iter = key_list.begin();
auto last = key_list.end();
while ( iter != last )
{
int x1 = X
, kname_len = int(getKeyName((*iter)->getKey()).getLength())
, txt_length = int((*iter)->getText().getLength())
, x2 = x1 + kname_len + txt_length + 1;
if ( (*iter)->hasMouseFocus() )
{
int mouse_x, mouse_y;
(*iter)->unsetMouseFocus();
mouse_x = ev->getX();
mouse_y = ev->getY();
if ( mouse_x >= x1 && mouse_x <= x2 && mouse_y == 1 )
(*iter)->setActive();
// unset after get back from callback
(*iter)->unsetActive();
redraw();
}
X = x2 + 2;
++iter;
}
}
}
}
//----------------------------------------------------------------------
void FStatusBar::onMouseMove (FMouseEvent* ev)
{
if ( hasActivatedKey() )
return;
if ( ev->getButton() != fc::LeftButton )
return;
if ( mouse_down && ! key_list.empty() )
{
bool focus_changed = false;
int X = 1;
auto iter = key_list.begin();
auto last = key_list.end();
while ( iter != last )
{
int x1 = X
, kname_len = int(getKeyName((*iter)->getKey()).getLength())
, txt_length = int((*iter)->getText().getLength())
, x2 = x1 + kname_len + txt_length + 1
, mouse_x = ev->getX()
, mouse_y = ev->getY();
if ( mouse_x >= x1
&& mouse_x <= x2
&& mouse_y == 1 )
{
if ( ! (*iter)->hasMouseFocus() )
{
(*iter)->setMouseFocus();
focus_changed = true;
}
}
else
{
if ( (*iter)->hasMouseFocus() )
{
(*iter)->unsetMouseFocus();
focus_changed = true;
}
}
X = x2 + 2;
++iter;
}
if ( focus_changed )
redraw();
}
}
//----------------------------------------------------------------------
void FStatusBar::cb_statuskey_activated (FWidget* widget, data_ptr)
{
if ( ! key_list.empty() )
{
auto statuskey = static_cast<FStatusKey*>(widget);
auto iter = key_list.begin();
auto last = key_list.end();
while ( iter != last )
{
if ( (*iter) != statuskey && (*iter)->isActivated() )
(*iter)->unsetActive();
++iter;
}
}
if ( isVisible() && isShown() )
redraw();
}
// private methods of FStatusBar
//----------------------------------------------------------------------
void FStatusBar::init()
{
auto r = getRootWidget();
std::size_t w = r->getWidth();
int h = int(r->getHeight());
// initialize geometry values
setGeometry (1, h, w, 1, false);
setAlwaysOnTop();
setStatusBar(this);
ignorePadding();
mouse_down = false;
if ( getRootWidget() )
getRootWidget()->setBottomPadding(1, true);
setForegroundColor (wc.statusbar_fg);
setBackgroundColor (wc.statusbar_bg);
unsetFocusable();
}
//----------------------------------------------------------------------
void FStatusBar::draw()
{
drawKeys();
drawMessage();
}
//----------------------------------------------------------------------
void FStatusBar::drawKeys()
{
screenWidth = getDesktopWidth();
x = 1;
if ( key_list.empty() )
{
x_msg = 1;
return;
}
setPrintPos (1, 1);
if ( isMonochron() )
setReverse(true);
auto iter = key_list.begin();
auto last = key_list.end();
while ( iter != last )
{
keyname_len = int(getKeyName((*iter)->getKey()).getLength());
if ( x + keyname_len + 2 < int(screenWidth) )
{
if ( (*iter)->isActivated() || (*iter)->hasMouseFocus() )
drawActiveKey (iter);
else
drawKey (iter);
}
else
{
setColor (wc.statusbar_fg, wc.statusbar_bg);
for (; x <= int(screenWidth); x++)
print (' ');
}
++iter;
}
if ( isMonochron() )
setReverse(false);
x_msg = x;
}
//----------------------------------------------------------------------
void FStatusBar::drawKey (keyList::const_iterator iter)
{
// Draw not active key
std::size_t txt_length;
auto item = *iter;
setColor (wc.statusbar_hotkey_fg, wc.statusbar_hotkey_bg);
x++;
print (' ');
x += keyname_len;
print (getKeyName(item->getKey()));
setColor (wc.statusbar_fg, wc.statusbar_bg);
x++;
print ('-');
txt_length = item->getText().getLength();
x += int(txt_length);
if ( x - 1 <= int(screenWidth) )
print (item->getText());
else
{
// Print ellipsis
print ( item->getText()
.left(txt_length + screenWidth - std::size_t(x) - 1) );
print ("..");
}
if ( iter + 1 != key_list.end()
&& ( (*(iter + 1))->isActivated() || (*(iter + 1))->hasMouseFocus() )
&& x + int(getKeyName((*(iter + 1))->getKey()).getLength()) + 3
< int(screenWidth) )
{
// Next element is active
if ( isMonochron() )
setReverse(false);
if ( hasHalfBlockCharacter() )
{
setColor (wc.statusbar_active_fg, wc.statusbar_active_bg);
print (fc::LeftHalfBlock); // ▐
}
else
print (' ');
x++;
if ( isMonochron() )
setReverse(true);
}
else if ( iter + 1 != key_list.end() && x < int(screenWidth) )
{
// Not the last element
setColor (wc.statusbar_separator_fg, wc.statusbar_bg);
x++;
print (fc::BoxDrawingsVertical); // │
}
}
//----------------------------------------------------------------------
void FStatusBar::drawActiveKey (keyList::const_iterator iter)
{
// Draw active key
std::size_t txt_length;
auto item = *iter;
if ( isMonochron() )
setReverse(false);
setColor ( wc.statusbar_active_hotkey_fg
, wc.statusbar_active_hotkey_bg );
x++;
print (' ');
x += keyname_len;
print (getKeyName(item->getKey()));
setColor (wc.statusbar_active_fg, wc.statusbar_active_bg);
x++;
print ('-');
txt_length = item->getText().getLength();
x += int(txt_length);
if ( x <= int(screenWidth) )
{
print (item->getText());
x++;
print (fc::RightHalfBlock); // ▌
}
else
{
// Print ellipsis
print ( item->getText()
.left(txt_length + screenWidth - std::size_t(x) - 1) );
print ("..");
}
if ( isMonochron() )
setReverse(true);
}
} // namespace finalcut