diff options
Diffstat (limited to 'src/kernel/qstyle.cpp')
| -rw-r--r-- | src/kernel/qstyle.cpp | 391 |
1 files changed, 381 insertions, 10 deletions
diff --git a/src/kernel/qstyle.cpp b/src/kernel/qstyle.cpp index 3a3a2775c..d100d5f1e 100644 --- a/src/kernel/qstyle.cpp +++ b/src/kernel/qstyle.cpp @@ -44,6 +44,10 @@ #include "ntqpainter.h" #include "ntqbitmap.h" #include "ntqpixmapcache.h" +#include "ntqframe.h" +#include "ntqlayout.h" +#include "ntqobjectlist.h" +#include "ntqwidgetlist.h" #include <limits.h> @@ -394,6 +398,10 @@ public: */ TQStyle::TQStyle() { + m_eventHandlerInstallationHook = NULL; + m_eventHandlerRemovalHook = NULL; + m_widgetActionRequestHook = NULL; + conditionalAcceleratorsEnabled = false; d = new TQStylePrivate; } @@ -414,8 +422,6 @@ TQStyle::~TQStyle() style. Current supported values are TQt::WindowsStyle and TQt::MotifStyle. */ - - /*! Initializes the appearance of a widget. @@ -439,8 +445,9 @@ TQStyle::~TQStyle() \sa unPolish() */ -void TQStyle::polish( TQWidget*) -{ +void TQStyle::polish( TQWidget *widget ) { + TQStyleControlElementData ceData = populateControlElementDataFromWidget(widget, TQStyleOption()); + polish(ceData, getControlElementFlagsForObject(widget, ceData.widgetObjectTypes, TQStyleOption()), widget); } /*! @@ -453,10 +460,62 @@ void TQStyle::polish( TQWidget*) \sa polish() */ -void TQStyle::unPolish( TQWidget*) -{ +void TQStyle::unPolish( TQWidget *widget ) { + TQStyleControlElementData ceData = populateControlElementDataFromWidget(widget, TQStyleOption()); + unPolish(ceData, getControlElementFlagsForObject(widget, ceData.widgetObjectTypes, TQStyleOption()), 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 TQt 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 TQStyle subclasses are + expected to work reasonably with all current and \e future + widgets. + + You may specify either a TQWidget 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 TQStyle::polish( TQStyleControlElementData ceData, ControlElementFlags, void *ptr ) { + if (ceData.widgetObjectTypes.contains("TQWidget")) { + // Enable dynamic hide/show of accelerator shortcuts + TQWidget* widget = reinterpret_cast<TQWidget*>(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 TQStyle::unPolish( TQStyleControlElementData ceData, ControlElementFlags, void *ptr ) { + if (ceData.widgetObjectTypes.contains("TQWidget")) { + // Disable dynamic hide/show of accelerator shortcuts + TQWidget* widget = reinterpret_cast<TQWidget*>(ptr); + widget->installEventFilter(this); + } +} /*! \overload @@ -464,8 +523,10 @@ void TQStyle::unPolish( TQWidget*) \sa unPolish() */ -void TQStyle::polish( TQApplication*) -{ +void TQStyle::polish( TQApplication *app ) { + TQStyleControlElementData ceData; + ceData.widgetObjectTypes = getObjectTypeListForObject(app); + applicationPolish(ceData, getControlElementFlagsForObject(app, ceData.widgetObjectTypes, TQStyleOption()), app); } /*! @@ -475,8 +536,41 @@ void TQStyle::polish( TQApplication*) \sa polish() */ -void TQStyle::unPolish( TQApplication*) -{ +void TQStyle::unPolish( TQApplication *app ) { + TQStyleControlElementData ceData; + ceData.widgetObjectTypes = getObjectTypeListForObject(app); + applicationUnPolish(ceData, getControlElementFlagsForObject(app, ceData.widgetObjectTypes, TQStyleOption()), app); +} + +/*! + \overload + Late initialization of the TQApplication object or other global application object. + + You may specify either a TQApplication 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 TQStyle::applicationPolish( TQStyleControlElementData, ControlElementFlags, void * ) { + // +} + +/*! + \overload + + Undoes the application polish. + + You may specify either a TQApplication 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 TQStyle::applicationUnPolish( TQStyleControlElementData, ControlElementFlags, void * ) { + // } /*! @@ -1958,6 +2052,283 @@ TQRect TQStyle::visualRect( const TQRect &logical, const TQRect &boundingRect ) } /*! + \fn void TQStyle::installObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ); + + Intercepts events generated by \a source and sends them to \a handler via + the bool TQStyle::objectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQEvent *e ) virtual method. + + \sa void TQStyle::removeObjectEventHandler( TQObject* source, TQStyle* handler ) + \sa bool TQStyle::objectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQEvent *e ) +*/ +void TQStyle::installObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) { + bool cbret = false; + if (m_eventHandlerInstallationHook) { + cbret = (*m_eventHandlerInstallationHook)(ceData, elementFlags, source, handler); + } + if (!cbret) { + if (ceData.widgetObjectTypes.contains("TQObject")) { + TQObject* o = reinterpret_cast<TQObject*>(source); + o->installEventFilter(this); + m_objectEventSourceToHandlerMap[source] = handler; + m_objectEventSourceDataToHandlerMap[source] = ceData; + m_objectEventSourceFlagsToHandlerMap[source] = elementFlags; + } + } +} + +/*! + \fn void TQStyle::removeObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ); + + Stops intercepting events generated by \a source. + + \sa void TQStyle::installObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) +*/ +void TQStyle::removeObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) { + bool cbret = false; + if (m_eventHandlerRemovalHook) { + cbret = (*m_eventHandlerRemovalHook)(ceData, elementFlags, source, handler); + } + if (!cbret) { + if (ceData.widgetObjectTypes.contains("TQObject")) { + TQObject* o = reinterpret_cast<TQObject*>(source); + m_objectEventSourceToHandlerMap.remove(source); + m_objectEventSourceDataToHandlerMap.remove(source); + m_objectEventSourceFlagsToHandlerMap.remove(source); + o->removeEventFilter(this); + } + } +} + +/*! + \fn void TQStyle::setEventHandlerInstallationHook( EventHandlerInstallationHook hook ); + + Sets a callback function \a hook which will be called whenever a new intercept request + is made via the TQStyle::installObjectEventHandler method. The callback function must + use this definition: bool callbackFunction( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ). + + \sa void TQStyle::installObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) +*/ +void TQStyle::setEventHandlerInstallationHook( EventHandlerInstallationHook hook ) { + m_eventHandlerInstallationHook = hook; +} + +/*! + \fn void TQStyle::setEventHandlerRemovalHook( EventHandlerRemovalHook hook ); + + Sets a callback function \a hook which will be called whenever a new intercept deactivation request + is made via the TQStyle::removeObjectEventHandler method. The callback function must + use this definition: bool callbackFunction( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ). + + \sa void TQStyle::removeObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) +*/ +void TQStyle::setEventHandlerRemovalHook( EventHandlerRemovalHook hook ) { + m_eventHandlerRemovalHook = hook; +} + +/*! + \fn bool TQStyle::objectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQEvent *e ); + + Override this virtual function to intercept events requested by a previous call to + TQStyle::installObjectEventHandler. + + \sa void TQStyle::installObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) + \sa void TQStyle::removeObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) +*/ +bool TQStyle::objectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQEvent *e ) { + Q_UNUSED(ceData); + Q_UNUSED(elementFlags); + Q_UNUSED(source); + Q_UNUSED(e); + return false; +} + +/*! + \fn bool TQStyle::eventFilter(TQObject *o, TQEvent *e); + \internal +*/ +bool TQStyle::eventFilter(TQObject *o, TQEvent *e) { + acceleratorKeypressEventMonitor(o, e); + + if (m_objectEventSourceToHandlerMap.contains(o)) { + TQStyle* handler = m_objectEventSourceToHandlerMap[o]; + TQStyleControlElementData ceData = m_objectEventSourceDataToHandlerMap[o]; + ControlElementFlags elementFlags = m_objectEventSourceFlagsToHandlerMap[o]; + bool ret = handler->objectEventHandler(ceData, elementFlags, o, e); + if (ret) { + return ret; + } + else { + return TQObject::eventFilter(o, e); + } + } + else { + return TQObject::eventFilter(o, e); + } +} + +/*! + \fn void TQStyle::setWidgetActionRequestHook( WidgetActionRequestHook hook ); + + Sets a callback function \a hook which will be called whenever a new widget action request + is made via the TQStyle::installObjectEventHandler method. The callback function must + use this definition: bool callbackFunction( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ). + + \sa void TQStyle::installObjectEventHandler( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, TQStyle* handler ) +*/ +void TQStyle::setWidgetActionRequestHook( WidgetActionRequestHook hook ) { + m_widgetActionRequestHook = hook; +} + +/*! + \fn bool widgetActionRequestHandler( TQStyleControlElementData 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 TQStyle::widgetActionRequest( TQStyleControlElementData ceData, ControlElementFlags elementFlags, void* source, WidgetActionRequest request, TQStyleWidgetActionRequestData requestData ) { + bool cbret = false; + if (m_widgetActionRequestHook) { + cbret = (*m_widgetActionRequestHook)(ceData, elementFlags, source, request, requestData); + } + if (!cbret) { + if (ceData.widgetObjectTypes.contains("TQWidget")) { + TQWidget* widget = reinterpret_cast<TQWidget*>(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) { + TQFrame* frame = dynamic_cast<TQFrame*>(widget); + if (frame) { + frame->setFrameStyle(requestData.metric1); + } + } + else if (request == WAR_FrameSetLineWidth) { + TQFrame* frame = dynamic_cast<TQFrame*>(widget); + if (frame) { + frame->setLineWidth(requestData.metric1); + } + } + else if (request == WAR_SetLayoutMargin) { + TQLayout* 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((TQt::BackgroundMode)requestData.metric1); + } + else if (request == WAR_SetFont) { + widget->setFont(requestData.font); + } + else if (request == WAR_RepaintAllAccelerators) { + TQWidgetList *list = TQApplication::topLevelWidgets(); + TQWidgetListIt it( *list ); + TQWidget * widget; + while ((widget=it.current()) != 0) { + ++it; + + TQObjectList *l = widget->queryList("TQWidget"); + TQObjectListIt it2( *l ); + TQWidget *w; + while ( (w = (TQWidget*)it2.current()) != 0 ) { + ++it2; + if (w->isTopLevel() || !w->isVisible() || w->style().styleHint(SH_UnderlineAccelerator, TQStyleControlElementData(), CEF_None, w)) { + l->removeRef(w); + } + } + + // Repaint all relevant widgets + it2.toFirst(); + while ( (w = (TQWidget*)it2.current()) != 0 ) { + ++it2; + w->repaint(FALSE); + } + delete l; + } + delete list; + } + return true; + } + } + return true; +} + +void TQStyle::acceleratorKeypressEventMonitor( TQObject *o, TQEvent *e ) { + // RAJA FIXME + // Also, SH_HideUnderlineAcceleratorWhenAltUp should probably be set to 1 in the TQWindowsStyle::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, TQStyleControlElementData(), CEF_None, TQStyleOption::Default, NULL, NULL) != 0) { + TQWidget *widget = dynamic_cast<TQWidget*>(o); + if (widget) { + switch(e->type()) { + case TQEvent::KeyPress: + if (((TQKeyEvent*)e)->key() == Key_Alt) { + conditionalAcceleratorsEnabled = true; + widgetActionRequest(TQStyleControlElementData(), CEF_None, o, WAR_RepaintAllAccelerators); + } + break; + case TQEvent::KeyRelease: + if (((TQKeyEvent*)e)->key() == Key_Alt) { + conditionalAcceleratorsEnabled = false; + widgetActionRequest(TQStyleControlElementData(), CEF_None, o, WAR_RepaintAllAccelerators); + } + break; + default: + break; + } + } + } + else { + conditionalAcceleratorsEnabled = false; + } +} + +bool TQStyle::acceleratorsShown() const { + if (styleHint(SH_HideUnderlineAcceleratorWhenAltUp, TQStyleControlElementData(), CEF_None, TQStyleOption::Default, NULL, NULL) != 0) { + return conditionalAcceleratorsEnabled; + } + else { + return true; + } +} + +TQStyleWidgetActionRequestData::TQStyleWidgetActionRequestData() { + // +} +TQStyleWidgetActionRequestData::TQStyleWidgetActionRequestData(int param1, int param2) { + metric1 = param1; + metric2 = param2; +} + +TQStyleWidgetActionRequestData::TQStyleWidgetActionRequestData(TQPalette param) { + palette = param; +} + +TQStyleWidgetActionRequestData::TQStyleWidgetActionRequestData(TQFont param) { + font = param; +} + +TQStyleWidgetActionRequestData::TQStyleWidgetActionRequestData(TQRect param) { + rect = param; +} + +TQStyleWidgetActionRequestData::~TQStyleWidgetActionRequestData() { + // +} + +/*! \fn int TQStyle::defaultFrameWidth() const \obsolete */ |