Avoids flickering when redrawing a focused widget
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Markus Gans
parent
7424dd74b4
commit
2ef3d84829
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@ -1,3 +1,6 @@
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2017-02-02 Markus Gans <guru.mail@muenster.de>
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* Avoids flickering when redrawing a focused widget
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2017-01-31 Markus Gans <guru.mail@muenster.de>
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* Refactoring FSwitch::drawCheckButton
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* Refactoring FWidget::redraw
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@ -102,6 +102,13 @@ class FVTerm : public FTerm
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fully_covered
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};
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enum terminal_update
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{
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stop_refresh,
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continue_refresh,
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start_refresh
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};
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// Constructor
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explicit FVTerm (bool, bool = false);
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@ -220,7 +227,7 @@ class FVTerm : public FTerm
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static void resizeVTerm (const FRect&);
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static void resizeVTerm (int, int);
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static void putVTerm();
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static void updateTerminal (bool);
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static void updateTerminal (terminal_update);
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static void updateTerminal();
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virtual void addPreprocessingHandler ( FVTerm*
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, FPreprocessingHandler );
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@ -1542,7 +1542,7 @@ int FApplication::processTimerEvent()
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//----------------------------------------------------------------------
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void FApplication::processCloseWidget()
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{
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updateTerminal(false);
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updateTerminal (FVTerm::stop_refresh);
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if ( close_widget && ! close_widget->empty() )
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{
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@ -1558,7 +1558,7 @@ void FApplication::processCloseWidget()
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close_widget->clear();
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}
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updateTerminal(true);
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updateTerminal (FVTerm::start_refresh);
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}
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//----------------------------------------------------------------------
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@ -78,7 +78,7 @@ FMenu::~FMenu() // destructor
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FApplication* fapp = static_cast<FApplication*>(getRootWidget());
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if ( ! fapp->isQuit() )
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switchToPrevWindow();
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switchToPrevWindow(); // Switch to previous window
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}
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@ -118,8 +118,9 @@ void FMenu::show()
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//----------------------------------------------------------------------
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void FMenu::hide()
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{
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if ( isVisible() )
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{
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if ( ! isVisible() )
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return;
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FWindow::hide();
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const FRect& t_geometry = getTermGeometryWithShadow();
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restoreVTerm (t_geometry);
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@ -138,7 +139,6 @@ void FMenu::hide()
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mouse_down = false;
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}
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}
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//----------------------------------------------------------------------
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void FMenu::onKeyPress (FKeyEvent* ev)
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@ -3,7 +3,7 @@
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2015-2017 Markus Gans *
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* Copyright 2015-2018 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public License *
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@ -330,7 +330,7 @@ bool FMenuBar::selectNextItem()
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if ( next == *iter )
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return false;
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updateTerminal(false);
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updateTerminal (FVTerm::stop_refresh);
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unselectItem();
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next->setSelected();
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setSelectedItem(next);
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@ -354,7 +354,7 @@ bool FMenuBar::selectNextItem()
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getStatusBar()->drawMessage();
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redraw();
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updateTerminal(true);
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updateTerminal (FVTerm::start_refresh);
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break;
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}
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@ -397,7 +397,7 @@ bool FMenuBar::selectPrevItem()
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if ( prev == *iter )
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return false;
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updateTerminal(false);
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updateTerminal (FVTerm::stop_refresh);
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unselectItem();
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prev->setSelected();
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prev->setFocus();
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@ -421,7 +421,7 @@ bool FMenuBar::selectPrevItem()
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setSelectedItem(prev);
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redraw();
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updateTerminal(true);
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updateTerminal (FVTerm::stop_refresh);
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break;
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}
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}
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@ -230,11 +230,20 @@ void FVTerm::putVTerm()
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}
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//----------------------------------------------------------------------
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void FVTerm::updateTerminal (bool on)
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void FVTerm::updateTerminal (terminal_update refresh_state)
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{
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stop_terminal_updates = bool(! on);
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switch ( refresh_state )
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{
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case stop_refresh:
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stop_terminal_updates = true;
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break;
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if ( on )
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case continue_refresh:
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case start_refresh:
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stop_terminal_updates = false;
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}
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if ( refresh_state == start_refresh )
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updateTerminal();
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}
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@ -3,7 +3,7 @@
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* *
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* This file is part of the Final Cut widget toolkit *
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* *
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* Copyright 2015-2017 Markus Gans *
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* Copyright 2015-2018 Markus Gans *
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* *
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* The Final Cut is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Lesser General Public License *
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@ -719,6 +719,11 @@ bool FWindow::zoomWindow()
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void FWindow::switchToPrevWindow()
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{
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// switch to previous window
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// Disable terminal updates to avoid flickering
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// when redrawing the focused widget
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updateTerminal (FVTerm::stop_refresh);
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bool is_activated = activatePrevWindow();
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FWindow* active_window = getActiveWindow();
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@ -765,6 +770,9 @@ void FWindow::switchToPrevWindow()
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focus_widget->redraw();
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}
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}
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// Enable terminal updates again
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updateTerminal (FVTerm::continue_refresh);
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}
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//----------------------------------------------------------------------
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