@ -44,6 +44,10 @@
# include "qpainter.h"
# include "qbitmap.h"
# include "qpixmapcache.h"
# include "qframe.h"
# include "qlayout.h"
# include "qobjectlist.h"
# include "qwidgetlist.h"
# include <limits.h>
@ -394,6 +398,10 @@ public:
*/
QStyle : : QStyle ( )
{
m_eventHandlerInstallationHook = NULL ;
m_eventHandlerRemovalHook = NULL ;
m_widgetActionRequestHook = NULL ;
conditionalAcceleratorsEnabled = false ;
d = new QStylePrivate ;
}
@ -414,8 +422,6 @@ QStyle::~QStyle()
style . Current supported values are Qt : : WindowsStyle and Qt : : MotifStyle .
*/
/*!
Initializes the appearance of a widget .
@ -439,8 +445,9 @@ QStyle::~QStyle()
\ sa unPolish ( )
*/
void QStyle : : polish ( QWidget * )
{
void QStyle : : polish ( QWidget * widget ) {
QStyleControlElementData ceData = populateControlElementDataFromWidget ( widget , QStyleOption ( ) ) ;
polish ( ceData , getControlElementFlagsForObject ( widget , ceData . widgetObjectTypes , QStyleOption ( ) ) , widget ) ;
}
/*!
@ -453,10 +460,62 @@ void QStyle::polish( QWidget*)
\ sa polish ( )
*/
void QStyle : : unPolish ( QWidget * )
{
void QStyle : : unPolish ( QWidget * widget ) {
QStyleControlElementData ceData = populateControlElementDataFromWidget ( widget , QStyleOption ( ) ) ;
unPolish ( ceData , getControlElementFlagsForObject ( widget , ceData . widgetObjectTypes , QStyleOption ( ) ) , widget ) ;
}
/*!
Initializes the appearance of a widget .
This function is called for every widget at some point after it
has been fully created but just \ e before it is shown the very
first time .
Reasonable actions in this function might be to install a widget
event handler for the style . An example of highly unreasonable
use would be setting the geometry ! With Qt 3.0 ' s style engine
you will rarely need to write your own polish ( ) ; instead reimplement
drawItem ( ) , drawPrimitive ( ) , etc .
The \ a objectTypes object may provide enough information to
allow class - specific customizations . But be careful not to
hard - code things too much because new QStyle subclasses are
expected to work reasonably with all current and \ e future
widgets .
You may specify either a QWidget pointer or a custom pointer .
If a custom pointer is specified , you must be careful to intercept any event
handler installation / removal calls via setEventHandlerInstallationHook and
setEventHandlerRemovalHook .
\ sa unPolish ( )
*/
void QStyle : : polish ( QStyleControlElementData ceData , ControlElementFlags , void * ptr ) {
if ( ceData . widgetObjectTypes . contains ( " QWidget " ) ) {
// Enable dynamic hide/show of accelerator shortcuts
QWidget * widget = reinterpret_cast < QWidget * > ( ptr ) ;
widget - > installEventFilter ( this ) ;
}
}
/*!
Undoes the initialization of a widget ' s appearance .
This function is the counterpart to polish . It is called for every
polished widget when the style is dynamically changed . The former
style has to unpolish its settings before the new style can polish
them again .
\ sa polish ( )
*/
void QStyle : : unPolish ( QStyleControlElementData ceData , ControlElementFlags , void * ptr ) {
if ( ceData . widgetObjectTypes . contains ( " QWidget " ) ) {
// Disable dynamic hide/show of accelerator shortcuts
QWidget * widget = reinterpret_cast < QWidget * > ( ptr ) ;
widget - > installEventFilter ( this ) ;
}
}
/*!
\ overload
@ -464,8 +523,10 @@ void QStyle::unPolish( QWidget*)
\ sa unPolish ( )
*/
void QStyle : : polish ( QApplication * )
{
void QStyle : : polish ( QApplication * app ) {
QStyleControlElementData ceData ;
ceData . widgetObjectTypes = getObjectTypeListForObject ( app ) ;
applicationPolish ( ceData , getControlElementFlagsForObject ( app , ceData . widgetObjectTypes , QStyleOption ( ) ) , app ) ;
}
/*!
@ -475,8 +536,41 @@ void QStyle::polish( QApplication*)
\ sa polish ( )
*/
void QStyle : : unPolish ( QApplication * )
{
void QStyle : : unPolish ( QApplication * app ) {
QStyleControlElementData ceData ;
ceData . widgetObjectTypes = getObjectTypeListForObject ( app ) ;
applicationUnPolish ( ceData , getControlElementFlagsForObject ( app , ceData . widgetObjectTypes , QStyleOption ( ) ) , app ) ;
}
/*!
\ overload
Late initialization of the QApplication object or other global application object .
You may specify either a QApplication pointer or a custom pointer .
If a custom pointer is specified , you must be careful to intercept any event
handler installation / removal calls via setEventHandlerInstallationHook and
setEventHandlerRemovalHook .
\ sa unPolish ( )
*/
void QStyle : : applicationPolish ( QStyleControlElementData , ControlElementFlags , void * ) {
//
}
/*!
\ overload
Undoes the application polish .
You may specify either a QApplication pointer or a custom pointer .
If a custom pointer is specified , you must be careful to intercept any event
handler installation / removal calls via setEventHandlerInstallationHook and
setEventHandlerRemovalHook .
\ sa polish ( )
*/
void QStyle : : applicationUnPolish ( QStyleControlElementData , ControlElementFlags , void * ) {
//
}
/*!
@ -1957,6 +2051,283 @@ QRect QStyle::visualRect( const QRect &logical, const QRect &boundingRect )
return r ;
}
/*!
\ fn void QStyle : : installObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) ;
Intercepts events generated by \ a source and sends them to \ a handler via
the bool QStyle : : objectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QEvent * e ) virtual method .
\ sa void QStyle : : removeObjectEventHandler ( QObject * source , QStyle * handler )
\ sa bool QStyle : : objectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QEvent * e )
*/
void QStyle : : installObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) {
bool cbret = false ;
if ( m_eventHandlerInstallationHook ) {
cbret = ( * m_eventHandlerInstallationHook ) ( ceData , elementFlags , source , handler ) ;
}
if ( ! cbret ) {
if ( ceData . widgetObjectTypes . contains ( " QObject " ) ) {
QObject * o = reinterpret_cast < QObject * > ( source ) ;
o - > installEventFilter ( this ) ;
m_objectEventSourceToHandlerMap [ source ] = handler ;
m_objectEventSourceDataToHandlerMap [ source ] = ceData ;
m_objectEventSourceFlagsToHandlerMap [ source ] = elementFlags ;
}
}
}
/*!
\ fn void QStyle : : removeObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) ;
Stops intercepting events generated by \ a source .
\ sa void QStyle : : installObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler )
*/
void QStyle : : removeObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) {
bool cbret = false ;
if ( m_eventHandlerRemovalHook ) {
cbret = ( * m_eventHandlerRemovalHook ) ( ceData , elementFlags , source , handler ) ;
}
if ( ! cbret ) {
if ( ceData . widgetObjectTypes . contains ( " QObject " ) ) {
QObject * o = reinterpret_cast < QObject * > ( source ) ;
m_objectEventSourceToHandlerMap . remove ( source ) ;
m_objectEventSourceDataToHandlerMap . remove ( source ) ;
m_objectEventSourceFlagsToHandlerMap . remove ( source ) ;
o - > removeEventFilter ( this ) ;
}
}
}
/*!
\ fn void QStyle : : setEventHandlerInstallationHook ( EventHandlerInstallationHook hook ) ;
Sets a callback function \ a hook which will be called whenever a new intercept request
is made via the QStyle : : installObjectEventHandler method . The callback function must
use this definition : bool callbackFunction ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) .
\ sa void QStyle : : installObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler )
*/
void QStyle : : setEventHandlerInstallationHook ( EventHandlerInstallationHook hook ) {
m_eventHandlerInstallationHook = hook ;
}
/*!
\ fn void QStyle : : setEventHandlerRemovalHook ( EventHandlerRemovalHook hook ) ;
Sets a callback function \ a hook which will be called whenever a new intercept deactivation request
is made via the QStyle : : removeObjectEventHandler method . The callback function must
use this definition : bool callbackFunction ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) .
\ sa void QStyle : : removeObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler )
*/
void QStyle : : setEventHandlerRemovalHook ( EventHandlerRemovalHook hook ) {
m_eventHandlerRemovalHook = hook ;
}
/*!
\ fn bool QStyle : : objectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QEvent * e ) ;
Override this virtual function to intercept events requested by a previous call to
QStyle : : installObjectEventHandler .
\ sa void QStyle : : installObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler )
\ sa void QStyle : : removeObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler )
*/
bool QStyle : : objectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QEvent * e ) {
Q_UNUSED ( ceData ) ;
Q_UNUSED ( elementFlags ) ;
Q_UNUSED ( source ) ;
Q_UNUSED ( e ) ;
return false ;
}
/*!
\ fn bool QStyle : : eventFilter ( QObject * o , QEvent * e ) ;
\ internal
*/
bool QStyle : : eventFilter ( QObject * o , QEvent * e ) {
acceleratorKeypressEventMonitor ( o , e ) ;
if ( m_objectEventSourceToHandlerMap . contains ( o ) ) {
QStyle * handler = m_objectEventSourceToHandlerMap [ o ] ;
QStyleControlElementData ceData = m_objectEventSourceDataToHandlerMap [ o ] ;
ControlElementFlags elementFlags = m_objectEventSourceFlagsToHandlerMap [ o ] ;
bool ret = handler - > objectEventHandler ( ceData , elementFlags , o , e ) ;
if ( ret ) {
return ret ;
}
else {
return QObject : : eventFilter ( o , e ) ;
}
}
else {
return QObject : : eventFilter ( o , e ) ;
}
}
/*!
\ fn void QStyle : : setWidgetActionRequestHook ( WidgetActionRequestHook hook ) ;
Sets a callback function \ a hook which will be called whenever a new widget action request
is made via the QStyle : : installObjectEventHandler method . The callback function must
use this definition : bool callbackFunction ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler ) .
\ sa void QStyle : : installObjectEventHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , QStyle * handler )
*/
void QStyle : : setWidgetActionRequestHook ( WidgetActionRequestHook hook ) {
m_widgetActionRequestHook = hook ;
}
/*!
\ fn bool widgetActionRequestHandler ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , WidgetActionRequest request ) ;
Handles widget action requests . Return FALSE to continue processing in base classes , TRUE to eat the request and halt processing .
*/
bool QStyle : : widgetActionRequest ( QStyleControlElementData ceData , ControlElementFlags elementFlags , void * source , WidgetActionRequest request , QStyleWidgetActionRequestData requestData ) {
bool cbret = false ;
if ( m_widgetActionRequestHook ) {
cbret = ( * m_widgetActionRequestHook ) ( ceData , elementFlags , source , request , requestData ) ;
}
if ( ! cbret ) {
if ( ceData . widgetObjectTypes . contains ( " QWidget " ) ) {
QWidget * widget = reinterpret_cast < QWidget * > ( source ) ;
if ( request = = WAR_Repaint ) {
widget - > repaint ( FALSE ) ;
}
else if ( request = = WAR_RepaintRect ) {
widget - > repaint ( requestData . rect , FALSE ) ;
}
else if ( request = = WAR_EnableMouseTracking ) {
widget - > setMouseTracking ( TRUE ) ;
}
else if ( request = = WAR_DisableMouseTracking ) {
widget - > setMouseTracking ( FALSE ) ;
}
else if ( request = = WAR_FrameSetStyle ) {
QFrame * frame = dynamic_cast < QFrame * > ( widget ) ;
if ( frame ) {
frame - > setFrameStyle ( requestData . metric1 ) ;
}
}
else if ( request = = WAR_FrameSetLineWidth ) {
QFrame * frame = dynamic_cast < QFrame * > ( widget ) ;
if ( frame ) {
frame - > setLineWidth ( requestData . metric1 ) ;
}
}
else if ( request = = WAR_SetLayoutMargin ) {
QLayout * layout = widget - > layout ( ) ;
if ( layout ) {
layout - > setMargin ( requestData . metric1 ) ;
}
}
else if ( request = = WAR_SetPalette ) {
widget - > setPalette ( requestData . palette ) ;
}
else if ( request = = WAR_SetBackgroundMode ) {
widget - > setBackgroundMode ( ( Qt : : BackgroundMode ) requestData . metric1 ) ;
}
else if ( request = = WAR_SetFont ) {
widget - > setFont ( requestData . font ) ;
}
else if ( request = = WAR_RepaintAllAccelerators ) {
QWidgetList * list = QApplication : : topLevelWidgets ( ) ;
QWidgetListIt it ( * list ) ;
QWidget * widget ;
while ( ( widget = it . current ( ) ) ! = 0 ) {
+ + it ;
QObjectList * l = widget - > queryList ( " QWidget " ) ;
QObjectListIt it2 ( * l ) ;
QWidget * w ;
while ( ( w = ( QWidget * ) it2 . current ( ) ) ! = 0 ) {
+ + it2 ;
if ( w - > isTopLevel ( ) | | ! w - > isVisible ( ) | | w - > style ( ) . styleHint ( SH_UnderlineAccelerator , QStyleControlElementData ( ) , CEF_None , w ) ) {
l - > removeRef ( w ) ;
}
}
// Repaint all relevant widgets
it2 . toFirst ( ) ;
while ( ( w = ( QWidget * ) it2 . current ( ) ) ! = 0 ) {
+ + it2 ;
w - > repaint ( FALSE ) ;
}
delete l ;
}
delete list ;
}
return true ;
}
}
return true ;
}
void QStyle : : acceleratorKeypressEventMonitor ( QObject * o , QEvent * e ) {
// RAJA FIXME
// Also, SH_HideUnderlineAcceleratorWhenAltUp should probably be set to 1 in the QWindowsStyle::styleHint overridden method
// Additionally, the common styleHint code in TDE (that controls popupmenu settings and such via configuration files) needs to be modified to add a config option for this new style hint
if ( styleHint ( SH_HideUnderlineAcceleratorWhenAltUp , QStyleControlElementData ( ) , CEF_None , QStyleOption : : Default , NULL , NULL ) ! = 0 ) {
QWidget * widget = dynamic_cast < QWidget * > ( o ) ;
if ( widget ) {
switch ( e - > type ( ) ) {
case QEvent : : KeyPress :
if ( ( ( QKeyEvent * ) e ) - > key ( ) = = Key_Alt ) {
conditionalAcceleratorsEnabled = true ;
widgetActionRequest ( QStyleControlElementData ( ) , CEF_None , o , WAR_RepaintAllAccelerators ) ;
}
break ;
case QEvent : : KeyRelease :
if ( ( ( QKeyEvent * ) e ) - > key ( ) = = Key_Alt ) {
conditionalAcceleratorsEnabled = false ;
widgetActionRequest ( QStyleControlElementData ( ) , CEF_None , o , WAR_RepaintAllAccelerators ) ;
}
break ;
default :
break ;
}
}
}
else {
conditionalAcceleratorsEnabled = false ;
}
}
bool QStyle : : acceleratorsShown ( ) const {
if ( styleHint ( SH_HideUnderlineAcceleratorWhenAltUp , QStyleControlElementData ( ) , CEF_None , QStyleOption : : Default , NULL , NULL ) ! = 0 ) {
return conditionalAcceleratorsEnabled ;
}
else {
return true ;
}
}
QStyleWidgetActionRequestData : : QStyleWidgetActionRequestData ( ) {
//
}
QStyleWidgetActionRequestData : : QStyleWidgetActionRequestData ( int param1 , int param2 ) {
metric1 = param1 ;
metric2 = param2 ;
}
QStyleWidgetActionRequestData : : QStyleWidgetActionRequestData ( QPalette param ) {
palette = param ;
}
QStyleWidgetActionRequestData : : QStyleWidgetActionRequestData ( QFont param ) {
font = param ;
}
QStyleWidgetActionRequestData : : QStyleWidgetActionRequestData ( QRect param ) {
rect = param ;
}
QStyleWidgetActionRequestData : : ~ QStyleWidgetActionRequestData ( ) {
//
}
/*!
\ fn int QStyle : : defaultFrameWidth ( ) const
\ obsolete
Timothy Pearson
12 years ago