X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/61fef19b852d426f5b00b60de083539b9ba0f76c..0286d08d1453506f9ff9a830d58b3b35817d0b14:/src/univ/slider.cpp diff --git a/src/univ/slider.cpp b/src/univ/slider.cpp index 87064fda1d..0e29c60806 100644 --- a/src/univ/slider.cpp +++ b/src/univ/slider.cpp @@ -1,5 +1,5 @@ /////////////////////////////////////////////////////////////////////////////// -// Name: univ/slider.cpp +// Name: src/univ/slider.cpp // Purpose: implementation of the universal version of wxSlider // Author: Vadim Zeitlin // Modified by: @@ -22,9 +22,9 @@ or right. What we really need is probably a more fine grain control on labels, i.e. we - should be able to select if we show nothign at all, the current value only + should be able to select if we show nothing at all, the current value only or the value and the limits - the current approach is just that of the - greatest common denominator. + lowest common denominator. TODO: @@ -42,28 +42,49 @@ // headers // ---------------------------------------------------------------------------- -#ifdef __GNUG__ - #pragma implementation "univslider.h" -#endif - #include "wx/wxprec.h" #ifdef __BORLANDC__ #pragma hdrstop #endif -#ifndef WX_PRECOMP - #include "wx/dc.h" -#endif +#if wxUSE_SLIDER #include "wx/slider.h" -#if wxUSE_SLIDER +#ifndef WX_PRECOMP + #include "wx/dc.h" +#endif #include "wx/univ/renderer.h" #include "wx/univ/inphand.h" #include "wx/univ/theme.h" +// ---------------------------------------------------------------------------- +// wxStdSliderInputHandler: default slider input handling +// ---------------------------------------------------------------------------- + +class WXDLLEXPORT wxStdSliderInputHandler : public wxStdInputHandler +{ +public: + // default ctor + wxStdSliderInputHandler(wxInputHandler *inphand) + : wxStdInputHandler(inphand) + { + } + + // base class methods + virtual bool HandleKey(wxInputConsumer *consumer, + const wxKeyEvent& event, + bool pressed); + virtual bool HandleMouse(wxInputConsumer *consumer, + const wxMouseEvent& event); + virtual bool HandleMouseMove(wxInputConsumer *consumer, + const wxMouseEvent& event); + + virtual bool HandleFocus(wxInputConsumer *consumer, const wxFocusEvent& event); +}; + // ---------------------------------------------------------------------------- // constants // ---------------------------------------------------------------------------- @@ -143,18 +164,18 @@ bool wxSlider::Create(wxWindow *parent, { if ( !wxSliderBase::Create(parent, id, pos, size, style, validator, name) ) - return FALSE; + return false; SetRange(minValue, maxValue); SetValue(value); // call this after setting the range as the best size depends (at least if // we have wxSL_LABELS style) on the range - SetBestSize(size); + SetInitialSize(size); CreateInputHandler(wxINP_HANDLER_SLIDER); - return TRUE; + return true; } // ---------------------------------------------------------------------------- @@ -184,24 +205,29 @@ bool wxSlider::ChangeValueBy(int inc) bool wxSlider::ChangeValueTo(int value) { // check if the value is going to change at all - if (value == m_value) return FALSE; + if (value == m_value) + return false; // this method is protected and we should only call it with normalized // value! - wxCHECK_MSG( IsInRange(value), FALSE, _T("invalid slider value") ); + wxCHECK_MSG( IsInRange(value), false, _T("invalid slider value") ); m_value = value; Refresh(); - // generate the event + // generate the events: both a specific scroll event and a command event + wxScrollEvent eventScroll(wxEVT_SCROLL_CHANGED, GetId()); + eventScroll.SetPosition(m_value); + eventScroll.SetEventObject( this ); + (void)GetEventHandler()->ProcessEvent(eventScroll); + wxCommandEvent event(wxEVT_COMMAND_SLIDER_UPDATED, GetId()); event.SetInt(m_value); event.SetEventObject(this); - (void)GetEventHandler()->ProcessEvent(event); - return TRUE; + return true; } void wxSlider::SetValue(int value) @@ -313,7 +339,7 @@ int wxSlider::GetThumbLength() const { wxSize sz = GetDefaultThumbSize(); int len = (IsVert() ? sz.x : sz.y); - if (m_thumbSize > len) + if (m_thumbSize > len) { return m_thumbSize; } @@ -389,7 +415,7 @@ wxSize wxSlider::DoGetBestClientSize() const if ( HasTicks() ) { wxCoord lenTick = GetRenderer()->GetSliderTickLen(); - if (style & wxSL_BOTH) + if (style & wxSL_BOTH) { lenTick = 2 * lenTick; } @@ -482,25 +508,25 @@ void wxSlider::CalcGeometry() m_rectLabel = wxRect(rectTotal.GetPosition(), sizeLabels); - if (style & wxSL_TOP) + if (style & wxSL_TOP) { // shrink and offset the slider to the bottom m_rectSlider.y += sizeLabels.y + SLIDER_LABEL_MARGIN; m_rectSlider.height -= sizeLabels.y + SLIDER_LABEL_MARGIN; } - else if (style & wxSL_BOTTOM) + else if (style & wxSL_BOTTOM) { // shrink the slider and move the label to the bottom m_rectSlider.height -= sizeLabels.y + SLIDER_LABEL_MARGIN; m_rectLabel.y += m_rectSlider.height + SLIDER_LABEL_MARGIN; } - else if (style & wxSL_LEFT) + else if (style & wxSL_LEFT) { // shrink and offset the slider to the right m_rectSlider.x += sizeLabels.x + SLIDER_LABEL_MARGIN; m_rectSlider.width -= sizeLabels.x + SLIDER_LABEL_MARGIN; } - else if (style & wxSL_RIGHT) + else if (style & wxSL_RIGHT) { // shrink the slider and move the label to the right m_rectSlider.width -= sizeLabels.x + SLIDER_LABEL_MARGIN; @@ -518,7 +544,7 @@ void wxSlider::CalcGeometry() if ( IsVert() ) { - if (style & (wxSL_LEFT|wxSL_BOTH)) + if (style & (wxSL_LEFT|wxSL_BOTH)) { m_rectTicks.x = m_rectSlider.x; } @@ -530,7 +556,7 @@ void wxSlider::CalcGeometry() } else // horizontal { - if (style & (wxSL_TOP|wxSL_BOTH)) + if (style & (wxSL_TOP|wxSL_BOTH)) { m_rectTicks.y = m_rectSlider.y; } @@ -599,8 +625,9 @@ void wxSlider::CalcThumbRect(const wxRect *rectShaftIn, } wxCoord lenShaft, - lenThumb, - *p; + lenThumb; + wxCoord *p; + wxRect rectThumb(rectShaft.GetPosition(), GetThumbSize()); if ( isVertical ) { @@ -708,19 +735,19 @@ void wxSlider::DoDraw(wxControlRenderer *renderer) { // align it to be close to the shaft int align = 0; - if (style & wxSL_TOP) + if (style & wxSL_TOP) { align = wxALIGN_CENTRE_HORIZONTAL|wxALIGN_TOP; } - else if (style & wxSL_BOTTOM) + else if (style & wxSL_BOTTOM) { align = wxALIGN_CENTRE_HORIZONTAL|wxALIGN_BOTTOM; } - else if (style & wxSL_LEFT) + else if (style & wxSL_LEFT) { align = wxALIGN_CENTRE_VERTICAL|wxALIGN_LEFT; } - else if (style & wxSL_RIGHT) + else if (style & wxSL_RIGHT) { align = wxALIGN_CENTRE_VERTICAL|wxALIGN_RIGHT; } @@ -742,50 +769,89 @@ bool wxSlider::PerformAction(const wxControlAction& action, long numArg, const wxString& strArg) { - if ( action == wxACTION_SLIDER_START ) + wxEventType scrollEvent = wxEVT_NULL; + int value; + bool valueChanged = true; + + if ( action == wxACTION_SLIDER_START ) { - ChangeValueTo(m_min); + scrollEvent = wxEVT_SCROLL_TOP; + value = m_min; } else if ( action == wxACTION_SLIDER_END ) { - ChangeValueTo(m_max); + scrollEvent = wxEVT_SCROLL_BOTTOM; + value = m_max; } else if ( action == wxACTION_SLIDER_PAGE_CHANGE ) { - ChangeValueBy(numArg * GetPageSize()); + value = NormalizeValue(m_value + numArg * GetPageSize()); } else if ( action == wxACTION_SLIDER_LINE_UP ) { - ChangeValueBy(+GetLineSize()); + scrollEvent = wxEVT_SCROLL_LINEUP; + value = NormalizeValue(m_value + +GetLineSize()); } else if ( action == wxACTION_SLIDER_LINE_DOWN ) { - ChangeValueBy(-GetLineSize()); + scrollEvent = wxEVT_SCROLL_LINEDOWN; + value = NormalizeValue(m_value + -GetLineSize()); } else if ( action == wxACTION_SLIDER_PAGE_UP ) { - ChangeValueBy(+GetPageSize()); + scrollEvent = wxEVT_SCROLL_PAGEUP; + value = NormalizeValue(m_value + +GetPageSize()); } else if ( action == wxACTION_SLIDER_PAGE_DOWN ) { - ChangeValueBy(-GetPageSize()); + scrollEvent = wxEVT_SCROLL_PAGEDOWN; + value = NormalizeValue(m_value + -GetPageSize()); } - else if ( action == wxACTION_SLIDER_THUMB_DRAG ) + else if ( action == wxACTION_SLIDER_THUMB_DRAG || + action == wxACTION_SLIDER_THUMB_MOVE ) { - // no special processing for it - return TRUE; + scrollEvent = wxEVT_SCROLL_THUMBTRACK; + + // we shouldn't generate a command event about this change but we still + // should update our value and the slider appearance + valueChanged = false; + m_value = + value = (int)numArg; + Refresh(); } - else if ( action == wxACTION_SLIDER_THUMB_MOVE || - action == wxACTION_SLIDER_THUMB_RELEASE ) + else if ( action == wxACTION_SLIDER_THUMB_RELEASE ) { - ChangeValueTo((int)numArg); + scrollEvent = wxEVT_SCROLL_THUMBRELEASE; + value = (int)numArg; } else { return wxControl::PerformAction(action, numArg, strArg); } - return TRUE; + // update wxSlider current value and generate wxCommandEvent, except while + // dragging the thumb + if ( valueChanged ) + ChangeValueTo(value); + + // also generate more precise wxScrollEvent if applicable + if ( scrollEvent != wxEVT_NULL ) + { + wxScrollEvent event(scrollEvent, GetId()); + event.SetPosition(value); + event.SetEventObject( this ); + GetEventHandler()->ProcessEvent(event); + } + + return true; +} + +/* static */ +wxInputHandler *wxSlider::GetStdInputHandler(wxInputHandler *handlerDef) +{ + static wxStdSliderInputHandler s_handler(handlerDef); + + return &s_handler; } // ---------------------------------------------------------------------------- @@ -799,14 +865,14 @@ wxScrollThumb::Shaft wxSlider::HitTest(const wxPoint& pt) const CalcThumbRect(&rectShaft, &rectThumb, NULL); // check for possible shaft or thumb hit - if (!rectShaft.Inside(pt) && !rectThumb.Inside(pt)) + if (!rectShaft.Contains(pt) && !rectThumb.Contains(pt)) { return wxScrollThumb::Shaft_None; } // the position to test and the start and end of the thumb wxCoord x, x1, x2, x3, x4; - if (IsVert()) + if (IsVert()) { x = pt.y; x1 = rectThumb.GetBottom(); @@ -822,13 +888,13 @@ wxScrollThumb::Shaft wxSlider::HitTest(const wxPoint& pt) const x3 = rectThumb.GetRight(); x4 = rectShaft.GetRight(); } - if ((x1 <= x) & (x < x2)) + if ((x1 <= x) && (x < x2)) { // or to the left return wxScrollThumb::Shaft_Above; } - if ((x3 < x) & (x <= x4)) { + if ((x3 < x) && (x <= x4)) { // or to the right return wxScrollThumb::Shaft_Below; } @@ -896,7 +962,7 @@ void wxSlider::SetShaftPartState(wxScrollThumb::Shaft shaftPart, void wxSlider::OnThumbDragStart(int pos) { - if (IsVert()) + if (IsVert()) { PerformAction(wxACTION_SLIDER_THUMB_DRAG, m_max - pos); } @@ -908,7 +974,7 @@ void wxSlider::OnThumbDragStart(int pos) void wxSlider::OnThumbDrag(int pos) { - if (IsVert()) + if (IsVert()) { PerformAction(wxACTION_SLIDER_THUMB_MOVE, m_max - pos); } @@ -920,7 +986,7 @@ void wxSlider::OnThumbDrag(int pos) void wxSlider::OnThumbDragEnd(int pos) { - if (IsVert()) + if (IsVert()) { PerformAction(wxACTION_SLIDER_THUMB_RELEASE, m_max - pos); } @@ -944,14 +1010,14 @@ bool wxSlider::OnPageScroll(int pageInc) } // ---------------------------------------------------------------------------- -// wxStdSliderButtonInputHandler +// wxStdSliderInputHandler // ---------------------------------------------------------------------------- -bool wxStdSliderButtonInputHandler::HandleKey(wxInputConsumer *consumer, +bool wxStdSliderInputHandler::HandleKey(wxInputConsumer *consumer, const wxKeyEvent& event, bool pressed) { - if ( pressed ) + if ( pressed ) { int keycode = event.GetKeyCode(); @@ -976,29 +1042,27 @@ bool wxStdSliderButtonInputHandler::HandleKey(wxInputConsumer *consumer, action = wxACTION_SLIDER_LINE_DOWN; break; - case WXK_PRIOR: case WXK_PAGEUP: action = wxACTION_SLIDER_PAGE_UP; break; - case WXK_NEXT: case WXK_PAGEDOWN: action = wxACTION_SLIDER_PAGE_DOWN; break; } - if ( !!action ) + if ( !action.IsEmpty() ) { consumer->PerformAction(action); - return TRUE; + return true; } } return wxStdInputHandler::HandleKey(consumer, event, pressed); } -bool wxStdSliderButtonInputHandler::HandleMouse(wxInputConsumer *consumer, +bool wxStdSliderInputHandler::HandleMouse(wxInputConsumer *consumer, const wxMouseEvent& event) { wxSlider *slider = wxStaticCast(consumer->GetInputWindow(), wxSlider); @@ -1006,13 +1070,13 @@ bool wxStdSliderButtonInputHandler::HandleMouse(wxInputConsumer *consumer, if ( slider->GetThumb().HandleMouse(event) ) { // processed by the thumb - return FALSE; + return false; } return wxStdInputHandler::HandleMouse(consumer, event); } -bool wxStdSliderButtonInputHandler::HandleMouseMove(wxInputConsumer *consumer, +bool wxStdSliderInputHandler::HandleMouseMove(wxInputConsumer *consumer, const wxMouseEvent& event) { wxSlider *slider = wxStaticCast(consumer->GetInputWindow(), wxSlider); @@ -1020,18 +1084,18 @@ bool wxStdSliderButtonInputHandler::HandleMouseMove(wxInputConsumer *consumer, if ( slider->GetThumb().HandleMouseMove(event) ) { // processed by the thumb - return FALSE; + return false; } return wxStdInputHandler::HandleMouseMove(consumer, event); } bool -wxStdSliderButtonInputHandler::HandleFocus(wxInputConsumer * WXUNUSED(consumer), +wxStdSliderInputHandler::HandleFocus(wxInputConsumer * WXUNUSED(consumer), const wxFocusEvent& WXUNUSED(event)) { - // slider's appearance changes when it gets/loses focus - return TRUE; + // slider appearance changes when it gets/loses focus + return true; } #endif // wxUSE_SLIDER