X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/dcc8cf5ae3a2a364774e54a70b6470c1636a9825..687b91d266990129fbbb8c21d92fa4298b458352:/include/wx/combo.h diff --git a/include/wx/combo.h b/include/wx/combo.h index b5fa3955f3..e8704a4f66 100644 --- a/include/wx/combo.h +++ b/include/wx/combo.h @@ -1,8 +1,8 @@ /////////////////////////////////////////////////////////////////////////////// // Name: wx/combo.h -// Purpose: wxComboControl declaration +// Purpose: wxComboCtrl declaration // Author: Jaakko Salli -// Modified by: +// Modified by: // Created: Apr-30-2006 // RCS-ID: $Id$ // Copyright: (c) Jaakko Salli @@ -15,7 +15,7 @@ /* A few words about all the classes defined in this file are probably in - order: why do we need extra wxComboControl and wxComboPopup classes? + order: why do we need extra wxComboCtrl and wxComboPopup classes? This is because a traditional combobox is a combination of a text control (with a button allowing to open the pop down list) with a listbox and @@ -23,9 +23,9 @@ combinations - in fact, we want to allow anything at all to be used as pop down list, not just a wxListBox. - So we define a base wxComboControl which can use any control as pop down + So we define a base wxComboCtrl which can use any control as pop down list and wxComboBox deriving from it which implements the standard wxWidgets - combobox API. wxComboControl needs to be told somehow which control to use + combobox API. wxComboCtrl needs to be told somehow which control to use and this is done by SetPopupControl(). However, we need something more than just a wxControl in this method as, for example, we need to call SetSelection("initial text value") and wxControl doesn't have such method. @@ -40,19 +40,17 @@ #include "wx/defs.h" -#if wxUSE_COMBOCONTROL +#if wxUSE_COMBOCTRL - -#include "wx/textctrl.h" -#include "wx/button.h" -#include "wx/combobox.h" +#include "wx/control.h" #include "wx/renderer.h" // this is needed for wxCONTROL_XXX flags +#include "wx/bitmap.h" // wxBitmap used by-value - +class WXDLLIMPEXP_CORE wxTextCtrl; class WXDLLEXPORT wxComboPopup; // -// New window styles for wxComboControlBase +// New window styles for wxComboCtrlBase // enum { @@ -60,16 +58,12 @@ enum // In wxOwnerDrawnComboBox, for instance, it cycles item. wxCC_SPECIAL_DCLICK = 0x0100, - // Use keyboard behaviour alternate to platform default: - // Up an down keys will show popup instead of cycling value. - wxCC_ALT_KEYS = 0x0200, - // Dropbutton acts like standard push button. - wxCC_STD_BUTTON = 0x0400 + wxCC_STD_BUTTON = 0x0200 }; -// wxComboControl internal flags +// wxComboCtrl internal flags enum { // First those that can be passed to Customize. @@ -89,19 +83,25 @@ enum // Internal use: SetTextIndent has been called wxCC_IFLAG_INDENT_SET = 0x0400, // Internal use: Set wxTAB_TRAVERSAL to parent when popup is dismissed - wxCC_IFLAG_PARENT_TAB_TRAVERSAL = 0x0800 + wxCC_IFLAG_PARENT_TAB_TRAVERSAL = 0x0800, + // Internal use: Secondary popup window type should be used (if available). + wxCC_IFLAG_USE_ALT_POPUP = 0x1000, + // Internal use: Skip popup animation. + wxCC_IFLAG_DISABLE_POPUP_ANIM = 0x2000 }; // Flags used by PreprocessMouseEvent and HandleButtonMouseEvent enum { - wxCC_MF_ON_BUTTON = 0x0001 // cursor is on dropbutton area + wxCC_MF_ON_BUTTON = 0x0001, // cursor is on dropbutton area + wxCC_MF_ON_CLICK_AREA = 0x0002 // cursor is on dropbutton or other area + // that can be clicked to show the popup. }; -// Namespace for wxComboControl feature flags -struct wxComboControlFeatures +// Namespace for wxComboCtrl feature flags +struct wxComboCtrlFeatures { enum { @@ -128,12 +128,12 @@ struct wxComboControlFeatures }; -class WXDLLEXPORT wxComboControlBase : public wxControl +class WXDLLEXPORT wxComboCtrlBase : public wxControl { friend class wxComboPopup; public: // ctors and such - wxComboControlBase() : wxControl() { Init(); } + wxComboCtrlBase() : wxControl() { Init(); } bool Create(wxWindow *parent, wxWindowID id, @@ -144,7 +144,7 @@ public: const wxValidator& validator, const wxString& name); - virtual ~wxComboControlBase(); + virtual ~wxComboCtrlBase(); // show/hide popup window virtual void ShowPopup(); @@ -154,14 +154,21 @@ public: virtual void OnButtonClick(); // return true if the popup is currently shown - bool IsPopupShown() const { return m_isPopupShown; } + bool IsPopupShown() const { return m_popupWinState == Visible; } // set interface class instance derived from wxComboPopup // NULL popup can be used to indicate default in a derived class - virtual void SetPopupControl( wxComboPopup* popup ); + void SetPopupControl( wxComboPopup* popup ) + { + DoSetPopupControl(popup); + } // get interface class instance derived from wxComboPopup - wxComboPopup* GetPopupControl() const { return m_popupInterface; } + wxComboPopup* GetPopupControl() + { + EnsurePopupControl(); + return m_popupInterface; + } // get the popup window containing the popup control wxWindow *GetPopupWindow() const { return m_winPopup; } @@ -198,6 +205,10 @@ public: // (ie. wxComboPopup::SetStringValue doesn't get called). void SetText(const wxString& value); + // This method sets value and also optionally sends EVT_TEXT + // (needed by combo popups) + void SetValueWithEvent(const wxString& value, bool withEvent = true); + // // Popup customization methods // @@ -247,17 +258,19 @@ public: } // Set position of dropdown button. - // width: 0 > for specific custom width, negative to adjust to smaller than default - // height: 0 > for specific custom height, negative to adjust to smaller than default + // width: button width. <= 0 for default. + // height: button height. <= 0 for default. // side: wxLEFT or wxRIGHT, indicates on which side the button will be placed. // spacingX: empty space on sides of the button. Default is 0. // Remarks: // There is no spacingY - the button will be centered vertically. - void SetButtonPosition( int width = 0, - int height = 0, + void SetButtonPosition( int width = -1, + int height = -1, int side = wxRIGHT, int spacingX = 0 ); + // Returns current size of the dropdown button. + wxSize GetButtonSize(); // // Sets dropbutton to be drawn with custom bitmaps. @@ -290,11 +303,51 @@ public: return m_absIndent; } + // Returns area covered by the text field. + const wxRect& GetTextRect() const + { + return m_tcArea; + } + + // Call with enable as true to use a type of popup window that guarantees ability + // to focus the popup control, and normal function of common native controls. + // This alternative popup window is usually a wxDialog, and as such it's parent + // frame will appear as if the focus has been lost from it. + void UseAltPopupWindow( bool enable = true ) + { + wxASSERT_MSG( !m_winPopup, + wxT("call this only before SetPopupControl") ); + + if ( enable ) + m_iFlags |= wxCC_IFLAG_USE_ALT_POPUP; + else + m_iFlags &= ~wxCC_IFLAG_USE_ALT_POPUP; + } + + // Call with false to disable popup animation, if any. + void EnablePopupAnimation( bool enable = true ) + { + if ( enable ) + m_iFlags &= ~wxCC_IFLAG_DISABLE_POPUP_ANIM; + else + m_iFlags |= wxCC_IFLAG_DISABLE_POPUP_ANIM; + } + // // Utilies needed by the popups or native implementations // - // Draws focus background (on combo control) in a way typical on platform. + // Returns true if given key combination should toggle the popup. + // NB: This is a separate from other keyboard handling because: + // 1) Replaceability. + // 2) Centralized code (otherwise it'd be split up between + // wxComboCtrl key handler and wxVListBoxComboPopup's + // key handler). + virtual bool IsKeyPopupToggle(const wxKeyEvent& event) const = 0; + + // Prepare background of combo control or an item in a dropdown list + // in a way typical on platform. This includes painting the focus/disabled + // background and setting the clipping region. // Unless you plan to paint your own focus indicator, you should always call this // in your wxComboPopup::PaintComboControl implementation. // In addition, it sets pen and text colour to what looks good and proper @@ -302,13 +355,13 @@ public: // flags: wxRendererNative flags: wxCONTROL_ISSUBMENU: is drawing a list item instead of combo control // wxCONTROL_SELECTED: list item is selected // wxCONTROL_DISABLED: control/item is disabled - virtual void DrawFocusBackground( wxDC& dc, const wxRect& rect, int flags ); + virtual void PrepareBackground( wxDC& dc, const wxRect& rect, int flags ) const; // Returns true if focus indicator should be drawn in the control. bool ShouldDrawFocus() const { const wxWindow* curFocus = FindFocus(); - return ( !m_isPopupShown && + return ( !IsPopupShown() && (curFocus == this || (m_btn && curFocus == m_btn)) && (m_windowStyle & wxCB_READONLY) ); } @@ -328,6 +381,19 @@ public: // common code to be called on popup hide/dismiss void OnPopupDismiss(); + // PopupShown states + enum + { + Hidden = 0, + //Closing = 1, + Animating = 2, + Visible = 3 + }; + + bool IsPopupWindowState( int state ) const { return (state == m_popupWinState) ? true : false; } + + wxByte GetPopupWindowState() const { return m_popupWinState; } + protected: // @@ -348,7 +414,7 @@ protected: void CreateTextCtrl( int extraStyle, const wxValidator& validator ); // Installs standard input handler to combo (and optionally to the textctrl) - void InstallInputHandlers( bool alsoTextCtrl = true ); + void InstallInputHandlers(); // Draws dropbutton. Using wxRenderer or bitmaps, as appropriate. void DrawButton( wxDC& dc, const wxRect& rect, bool paintBg = true ); @@ -357,9 +423,7 @@ protected: //bool HandleButtonMouseEvent( wxMouseEvent& event, bool isInside ); bool HandleButtonMouseEvent( wxMouseEvent& event, int flags ); - // Conversion to double-clicks and some basic filtering // returns true if event was consumed or filtered (event type is also set to 0 in this case) - //bool PreprocessMouseEvent( wxMouseEvent& event, bool isOnButtonArea ); bool PreprocessMouseEvent( wxMouseEvent& event, int flags ); // @@ -373,10 +437,15 @@ protected: // Creates popup window, calls interface->Create(), etc void CreatePopup(); + // Destroy popup window and all related constructs + void DestroyPopup(); + // override the base class virtuals involved in geometry calculations - virtual void DoMoveWindow(int x, int y, int width, int height); virtual wxSize DoGetBestSize() const; + // NULL popup can be used to indicate default in a derived class + virtual void DoSetPopupControl(wxComboPopup* popup); + // ensures there is atleast the default popup void EnsurePopupControl(); @@ -394,20 +463,35 @@ protected: void OnFocusEvent(wxFocusEvent& event); void OnTextCtrlEvent(wxCommandEvent& event); void OnSysColourChanged(wxSysColourChangedEvent& event); + void OnKeyEvent(wxKeyEvent& event); - // Set customization flags (directs how wxComboControlBase helpers behave) + // Set customization flags (directs how wxComboCtrlBase helpers behave) void Customize( wxUint32 flags ) { m_iFlags |= flags; } // Dispatches size event and refreshes void RecalcAndRefresh(); + // Flags for DoShowPopup and AnimateShow + enum + { + ShowBelow = 0x0000, // Showing popup below the control + ShowAbove = 0x0001, // Showing popup above the control + CanDeferShow = 0x0002 // Can only return true from AnimateShow if this is set + }; + + // Shows and positions the popup. + virtual void DoShowPopup( const wxRect& rect, int flags ); + + // Implement in derived class to create a drop-down animation. + // Return true if finished immediately. Otherwise popup is only + // shown when the derived class call DoShowPopup. + // Flags are same as for DoShowPopup. + virtual bool AnimateShow( const wxRect& rect, int flags ); + #if wxUSE_TOOLTIPS virtual void DoSetToolTip( wxToolTip *tip ); #endif - // Used by OnPaints of derived classes - wxBitmap& GetBufferBitmap(const wxSize& sz) const; - // This is used when m_text is hidden (readonly). wxString m_valueString; @@ -424,10 +508,7 @@ protected: // popup interface wxComboPopup* m_popupInterface; - // this is for this control itself - wxEvtHandler* m_extraEvtHandler; - - // this is for text + // this is input etc. handler for the text control wxEvtHandler* m_textEvtHandler; // this is for the top level window @@ -436,8 +517,8 @@ protected: // this is for the control in popup wxEvtHandler* m_popupExtraHandler; - // needed for "instant" double-click handling - wxLongLong m_timeLastMouseUp; + // this is for the popup window + wxEvtHandler* m_popupWinEvtHandler; // used to prevent immediate re-popupping incase closed popup // by clicking on the combo control (needed because of inconsistent @@ -500,40 +581,42 @@ protected: bool m_blankButtonBg; // is the popup window currenty shown? - bool m_isPopupShown; - - // Set to 1 on mouse down, 0 on mouse up. Used to eliminate down-less mouse ups. - bool m_downReceived; + wxByte m_popupWinState; private: void Init(); + wxByte m_ignoreEvtText; // Number of next EVT_TEXTs to ignore + + // Is popup window wxPopupTransientWindow, wxPopupWindow or wxDialog? + wxByte m_popupWinType; + DECLARE_EVENT_TABLE() - DECLARE_ABSTRACT_CLASS(wxComboControlBase) + DECLARE_ABSTRACT_CLASS(wxComboCtrlBase) }; // ---------------------------------------------------------------------------- // wxComboPopup is the interface which must be implemented by a control to be -// used as a popup by wxComboControl +// used as a popup by wxComboCtrl // ---------------------------------------------------------------------------- // wxComboPopup internal flags enum { - wxCP_IFLAG_CREATED = 0x0001 // Set by wxComboControlBase after Create is called + wxCP_IFLAG_CREATED = 0x0001 // Set by wxComboCtrlBase after Create is called }; class WXDLLEXPORT wxComboPopup { - friend class wxComboControlBase; + friend class wxComboCtrlBase; public: wxComboPopup() { - m_combo = (wxComboControlBase*) NULL; + m_combo = (wxComboCtrlBase*) NULL; m_iFlags = 0; } @@ -569,12 +652,12 @@ public: // Default implementation draws value as string. virtual void PaintComboControl( wxDC& dc, const wxRect& rect ); - // Receives key events from the parent wxComboControl. + // Receives key events from the parent wxComboCtrl. // Events not handled should be skipped, as usual. virtual void OnComboKeyEvent( wxKeyEvent& event ); // Implement if you need to support special action when user - // double-clicks on the parent wxComboControl. + // double-clicks on the parent wxComboCtrl. virtual void OnComboDoubleClick(); // Return final size of popup. Called on every popup, just prior to OnShow. @@ -604,17 +687,17 @@ public: } // Default PaintComboControl behaviour - static void DefaultPaintComboControl( wxComboControlBase* combo, + static void DefaultPaintComboControl( wxComboCtrlBase* combo, wxDC& dc, const wxRect& rect ); protected: - wxComboControlBase* m_combo; + wxComboCtrlBase* m_combo; wxUint32 m_iFlags; private: - // Called in wxComboControlBase::SetPopupControl - void InitBase(wxComboControlBase *combo) + // Called in wxComboCtrlBase::SetPopupControl + void InitBase(wxComboCtrlBase *combo) { m_combo = combo; } @@ -634,7 +717,7 @@ private: // Any ports may need generic as an alternative #include "wx/generic/combo.h" -#endif // wxUSE_COMBOCONTROL +#endif // wxUSE_COMBOCTRL #endif // _WX_COMBOCONTROL_H_BASE_