5758832a6e
When the wxBitmapComboBox is empty, GetBitmapSize() returns size -1,-1. Images can not be scaled to this invalid size. Use the size of the imagelist instead.
948 lines
29 KiB
C++
948 lines
29 KiB
C++
/////////////////////////////////////////////////////////////////////////////
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// Program: wxWidgets Widgets Sample
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// Name: bmpcombobox.cpp
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// Purpose: Part of the widgets sample showing wxBitmapComboBox
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// Author: Jaakko Salli
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// Created: Sep-01-2006
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// Copyright: (c) 2006 Jaakko Salli
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// Licence: wxWindows licence
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/////////////////////////////////////////////////////////////////////////////
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// ============================================================================
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// declarations
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// ============================================================================
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// ----------------------------------------------------------------------------
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// headers
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// ----------------------------------------------------------------------------
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// for compilers that support precompilation, includes "wx/wx.h".
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#include "wx/wxprec.h"
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#ifdef __BORLANDC__
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#pragma hdrstop
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#endif
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#if wxUSE_BITMAPCOMBOBOX
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// for all others, include the necessary headers
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#ifndef WX_PRECOMP
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#include "wx/log.h"
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#include "wx/bitmap.h"
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#include "wx/button.h"
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#include "wx/checkbox.h"
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#include "wx/combobox.h"
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#include "wx/radiobox.h"
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#include "wx/statbox.h"
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#include "wx/textctrl.h"
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#include "wx/filedlg.h"
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#endif
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#include "wx/stattext.h"
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#include "wx/dc.h"
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#include "wx/dcmemory.h"
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#include "wx/sizer.h"
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#include "wx/icon.h"
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#include "wx/dir.h"
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#include "wx/msgdlg.h"
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#include "wx/filename.h"
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#include "wx/image.h"
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#include "wx/imaglist.h"
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#include "wx/bmpcbox.h"
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#include "itemcontainer.h"
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#include "widgets.h"
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#include "icons/bmpcombobox.xpm"
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// Images loaded from file are reduced this width and height, if larger
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#define IMG_SIZE_TRUNC 256
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// ----------------------------------------------------------------------------
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// constants
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// ----------------------------------------------------------------------------
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// control ids
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enum
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{
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BitmapComboBoxPage_Reset = wxID_HIGHEST,
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BitmapComboBoxPage_Insert,
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BitmapComboBoxPage_InsertText,
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BitmapComboBoxPage_ChangeHeight,
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BitmapComboBoxPage_LoadFromFile,
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BitmapComboBoxPage_SetFromFile,
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BitmapComboBoxPage_AddWidgetIcons,
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BitmapComboBoxPage_AddSeveralWithImages,
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BitmapComboBoxPage_AddSeveral,
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BitmapComboBoxPage_AddMany,
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BitmapComboBoxPage_Clear,
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BitmapComboBoxPage_Change,
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BitmapComboBoxPage_Delete,
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BitmapComboBoxPage_DeleteText,
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BitmapComboBoxPage_DeleteSel,
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BitmapComboBoxPage_Combo,
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BitmapComboBoxPage_ContainerTests
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};
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// kinds of comboboxes
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enum
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{
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ComboKind_Default,
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ComboKind_Simple,
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ComboKind_DropDown
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};
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// ----------------------------------------------------------------------------
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// BitmapComboBoxWidgetsPage
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// ----------------------------------------------------------------------------
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class BitmapComboBoxWidgetsPage : public ItemContainerWidgetsPage
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{
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public:
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BitmapComboBoxWidgetsPage(WidgetsBookCtrl *book, wxImageList *imaglist);
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virtual wxWindow *GetWidget() const wxOVERRIDE { return m_combobox; }
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virtual wxItemContainer* GetContainer() const wxOVERRIDE { return m_combobox; }
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virtual void RecreateWidget() wxOVERRIDE { CreateCombo(); }
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// lazy creation of the content
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virtual void CreateContent() wxOVERRIDE;
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protected:
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// event handlers
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void OnButtonReset(wxCommandEvent& event);
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void OnButtonChange(wxCommandEvent& event);
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void OnButtonDelete(wxCommandEvent& event);
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void OnButtonDeleteSel(wxCommandEvent& event);
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void OnButtonClear(wxCommandEvent& event);
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void OnButtonInsert(wxCommandEvent &event);
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void OnTextChangeHeight(wxCommandEvent& event);
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void OnButtonLoadFromFile(wxCommandEvent& event);
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void OnButtonSetFromFile(wxCommandEvent& event);
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void OnButtonAddSeveral(wxCommandEvent& event);
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void OnButtonAddSeveralWithImages(wxCommandEvent& event);
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void OnButtonAddWidgetIcons(wxCommandEvent& event);
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void OnButtonAddMany(wxCommandEvent& event);
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void OnComboBox(wxCommandEvent& event);
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void OnDropDown(wxCommandEvent& event);
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void OnCloseUp(wxCommandEvent& event);
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void OnComboText(wxCommandEvent& event);
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void OnCheckOrRadioBox(wxCommandEvent& event);
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void OnTextPopupWidth(wxCommandEvent& event);
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void OnTextPopupHeight(wxCommandEvent& event);
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void OnTextButtonAll(wxCommandEvent& event);
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void OnUpdateUIInsert(wxUpdateUIEvent& event);
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void OnUpdateUIClearButton(wxUpdateUIEvent& event);
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void OnUpdateUIDeleteButton(wxUpdateUIEvent& event);
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void OnUpdateUIItemManipulator(wxUpdateUIEvent& event);
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void OnUpdateUIResetButton(wxUpdateUIEvent& event);
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// reset the bmpcombobox parameters
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void Reset();
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// (re)create the bmpcombobox
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void CreateCombo();
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// helpers for creating bitmaps
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wxBitmap CreateBitmap(const wxColour& colour);
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wxBitmap LoadBitmap(const wxString& filepath);
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wxBitmap QueryBitmap(wxString* pStr);
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void LoadWidgetImages( wxArrayString* strings, wxImageList* images );
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wxSizer *CreateSizerWithSmallTextAndLabel(const wxString& label,
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wxWindowID id,
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wxTextCtrl **ppText);
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#if wxUSE_IMAGE
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void RescaleImage(wxImage& image, int w, int h);
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#endif
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// the controls
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// ------------
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// the sel mode radiobox
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wxRadioBox *m_radioKind;
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// the checkboxes for styles
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wxCheckBox *m_chkSort,
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*m_chkReadonly;
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// the combobox itself and the sizer it is in
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wxBitmapComboBox *m_combobox;
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wxSizer *m_sizerCombo;
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// the text entries for "Add/change string" and "Delete" buttons
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wxTextCtrl *m_textInsert,
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*m_textChangeHeight,
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*m_textChange,
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*m_textDelete;
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private:
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wxDECLARE_EVENT_TABLE();
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DECLARE_WIDGETS_PAGE(BitmapComboBoxWidgetsPage)
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};
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// ----------------------------------------------------------------------------
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// event tables
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// ----------------------------------------------------------------------------
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wxBEGIN_EVENT_TABLE(BitmapComboBoxWidgetsPage, WidgetsPage)
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EVT_BUTTON(BitmapComboBoxPage_Reset, BitmapComboBoxWidgetsPage::OnButtonReset)
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EVT_BUTTON(BitmapComboBoxPage_Change, BitmapComboBoxWidgetsPage::OnButtonChange)
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EVT_BUTTON(BitmapComboBoxPage_Delete, BitmapComboBoxWidgetsPage::OnButtonDelete)
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EVT_BUTTON(BitmapComboBoxPage_DeleteSel, BitmapComboBoxWidgetsPage::OnButtonDeleteSel)
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EVT_BUTTON(BitmapComboBoxPage_Clear, BitmapComboBoxWidgetsPage::OnButtonClear)
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EVT_BUTTON(BitmapComboBoxPage_Insert, BitmapComboBoxWidgetsPage::OnButtonInsert)
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EVT_BUTTON(BitmapComboBoxPage_AddSeveral, BitmapComboBoxWidgetsPage::OnButtonAddSeveral)
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EVT_BUTTON(BitmapComboBoxPage_AddSeveralWithImages, BitmapComboBoxWidgetsPage::OnButtonAddSeveralWithImages)
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EVT_BUTTON(BitmapComboBoxPage_AddWidgetIcons, BitmapComboBoxWidgetsPage::OnButtonAddWidgetIcons)
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EVT_BUTTON(BitmapComboBoxPage_AddMany, BitmapComboBoxWidgetsPage::OnButtonAddMany)
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EVT_BUTTON(BitmapComboBoxPage_LoadFromFile, BitmapComboBoxWidgetsPage::OnButtonLoadFromFile)
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EVT_BUTTON(BitmapComboBoxPage_SetFromFile, BitmapComboBoxWidgetsPage::OnButtonSetFromFile)
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EVT_BUTTON(BitmapComboBoxPage_ContainerTests, ItemContainerWidgetsPage::OnButtonTestItemContainer)
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EVT_TEXT_ENTER(BitmapComboBoxPage_InsertText, BitmapComboBoxWidgetsPage::OnButtonInsert)
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EVT_TEXT(BitmapComboBoxPage_ChangeHeight, BitmapComboBoxWidgetsPage::OnTextChangeHeight)
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EVT_TEXT_ENTER(BitmapComboBoxPage_DeleteText, BitmapComboBoxWidgetsPage::OnButtonDelete)
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EVT_UPDATE_UI(BitmapComboBoxPage_Reset, BitmapComboBoxWidgetsPage::OnUpdateUIResetButton)
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EVT_UPDATE_UI(BitmapComboBoxPage_Insert, BitmapComboBoxWidgetsPage::OnUpdateUIInsert)
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EVT_UPDATE_UI(BitmapComboBoxPage_LoadFromFile, BitmapComboBoxWidgetsPage::OnUpdateUIInsert)
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EVT_UPDATE_UI(BitmapComboBoxPage_Clear, BitmapComboBoxWidgetsPage::OnUpdateUIClearButton)
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EVT_UPDATE_UI(BitmapComboBoxPage_DeleteText, BitmapComboBoxWidgetsPage::OnUpdateUIClearButton)
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EVT_UPDATE_UI(BitmapComboBoxPage_Delete, BitmapComboBoxWidgetsPage::OnUpdateUIDeleteButton)
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EVT_UPDATE_UI(BitmapComboBoxPage_Change, BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator)
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EVT_UPDATE_UI(BitmapComboBoxPage_SetFromFile, BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator)
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EVT_UPDATE_UI(BitmapComboBoxPage_DeleteSel, BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator)
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EVT_COMBOBOX_DROPDOWN(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnDropDown)
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EVT_COMBOBOX_CLOSEUP(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnCloseUp)
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EVT_COMBOBOX(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnComboBox)
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EVT_TEXT(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnComboText)
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EVT_TEXT_ENTER(BitmapComboBoxPage_Combo, BitmapComboBoxWidgetsPage::OnComboText)
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EVT_CHECKBOX(wxID_ANY, BitmapComboBoxWidgetsPage::OnCheckOrRadioBox)
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EVT_RADIOBOX(wxID_ANY, BitmapComboBoxWidgetsPage::OnCheckOrRadioBox)
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wxEND_EVENT_TABLE()
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// ============================================================================
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// implementation
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// ============================================================================
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#if defined(__WXMSW__) || defined(__WXGTK__)
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#define NATIVE_OR_GENERIC_CTRLS NATIVE_CTRLS
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#else
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#define NATIVE_OR_GENERIC_CTRLS GENERIC_CTRLS
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#endif
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IMPLEMENT_WIDGETS_PAGE(BitmapComboBoxWidgetsPage, wxT("BitmapCombobox"),
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NATIVE_OR_GENERIC_CTRLS | WITH_ITEMS_CTRLS | COMBO_CTRLS
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);
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BitmapComboBoxWidgetsPage::BitmapComboBoxWidgetsPage(WidgetsBookCtrl *book,
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wxImageList *imaglist)
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: ItemContainerWidgetsPage(book, imaglist, bmpcombobox_xpm)
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{
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// init everything
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m_chkSort =
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m_chkReadonly = NULL;
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m_combobox = NULL;
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m_sizerCombo = NULL;
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m_textInsert =
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m_textChangeHeight =
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m_textChange =
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m_textDelete = NULL;
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}
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// create a sizer containing a label and a small text ctrl
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wxSizer *BitmapComboBoxWidgetsPage::CreateSizerWithSmallTextAndLabel(const wxString& label,
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wxWindowID id,
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wxTextCtrl **ppText)
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{
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wxControl* control = new wxStaticText(this, wxID_ANY, label);
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wxSizer *sizerRow = new wxBoxSizer(wxHORIZONTAL);
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wxTextCtrl *text = new wxTextCtrl(this, id, wxEmptyString,
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wxDefaultPosition, wxSize(50,wxDefaultCoord), wxTE_PROCESS_ENTER);
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sizerRow->Add(control, 0, wxRIGHT | wxALIGN_CENTRE_VERTICAL, 5);
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sizerRow->Add(text, 1, wxFIXED_MINSIZE | wxLEFT | wxALIGN_CENTRE_VERTICAL, 5);
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if ( ppText )
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*ppText = text;
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return sizerRow;
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}
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void BitmapComboBoxWidgetsPage::CreateContent()
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{
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/*
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What we create here is a frame having 3 panes: style pane is the
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leftmost one, in the middle the pane with buttons allowing to perform
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miscellaneous combobox operations and the pane containing the combobox
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itself to the right
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*/
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wxSizer *sizerRow;
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wxSizer *sizerTop = new wxBoxSizer(wxHORIZONTAL);
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wxSizer *sizerLeft = new wxBoxSizer(wxVERTICAL);
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// left pane - style box
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wxStaticBox *box = new wxStaticBox(this, wxID_ANY, wxT("&Set style"));
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// should be in sync with ComboKind_XXX values
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static const wxString kinds[] =
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{
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wxT("default"),
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wxT("simple"),
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wxT("drop down"),
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};
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m_radioKind = new wxRadioBox(this, wxID_ANY, wxT("Combobox &kind:"),
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wxDefaultPosition, wxDefaultSize,
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WXSIZEOF(kinds), kinds,
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1, wxRA_SPECIFY_COLS);
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wxSizer *sizerStyle = new wxStaticBoxSizer(box, wxVERTICAL);
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m_chkSort = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Sort items"));
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m_chkReadonly = CreateCheckBoxAndAddToSizer(sizerStyle, wxT("&Read only"));
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wxButton *btn = new wxButton(this, BitmapComboBoxPage_Reset, wxT("&Reset"));
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sizerStyle->Add(btn, 0, wxALIGN_CENTRE_HORIZONTAL | wxALL, 3);
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sizerLeft->Add(sizerStyle, wxSizerFlags().Expand());
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sizerLeft->Add(m_radioKind, 0, wxGROW | wxALL, 5);
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// left pane - other options box
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box = new wxStaticBox(this, wxID_ANY, wxT("Demo options"));
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wxSizer *sizerOptions = new wxStaticBoxSizer(box, wxVERTICAL);
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sizerRow = CreateSizerWithSmallTextAndLabel(wxT("Control &height:"),
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BitmapComboBoxPage_ChangeHeight,
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&m_textChangeHeight);
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m_textChangeHeight->SetSize(20, wxDefaultCoord);
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sizerOptions->Add(sizerRow, 0, wxALL | wxFIXED_MINSIZE /*| wxGROW*/, 5);
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sizerLeft->Add( sizerOptions, wxSizerFlags().Expand().Border(wxTOP, 2));
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// middle pane
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wxStaticBox *box2 = new wxStaticBox(this, wxID_ANY,
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wxT("&Change wxBitmapComboBox contents"));
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wxSizer *sizerMiddle = new wxStaticBoxSizer(box2, wxVERTICAL);
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btn = new wxButton(this, BitmapComboBoxPage_ContainerTests, wxT("Run &tests"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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#if wxUSE_IMAGE
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btn = new wxButton(this, BitmapComboBoxPage_AddWidgetIcons, wxT("Add &widget icons"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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btn = new wxButton(this, BitmapComboBoxPage_LoadFromFile, wxT("Insert image from &file"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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btn = new wxButton(this, BitmapComboBoxPage_SetFromFile, wxT("&Set image from file"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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#endif
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btn = new wxButton(this, BitmapComboBoxPage_AddSeveralWithImages, wxT("A&ppend a few strings with images"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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btn = new wxButton(this, BitmapComboBoxPage_AddSeveral, wxT("Append a &few strings"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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btn = new wxButton(this, BitmapComboBoxPage_AddMany, wxT("Append &many strings"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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sizerRow = CreateSizerWithTextAndButton(BitmapComboBoxPage_Delete,
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wxT("&Delete this item"),
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BitmapComboBoxPage_DeleteText,
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&m_textDelete);
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sizerMiddle->Add(sizerRow, 0, wxALL | wxGROW, 5);
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btn = new wxButton(this, BitmapComboBoxPage_DeleteSel, wxT("Delete &selection"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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btn = new wxButton(this, BitmapComboBoxPage_Clear, wxT("&Clear"));
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sizerMiddle->Add(btn, 0, wxALL | wxGROW, 5);
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#if wxUSE_IMAGE
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wxInitAllImageHandlers();
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#endif
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// right pane
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wxSizer *sizerRight = new wxBoxSizer(wxVERTICAL);
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m_combobox = new wxBitmapComboBox();
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m_combobox->Create(this, BitmapComboBoxPage_Combo, wxEmptyString,
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wxDefaultPosition, wxDefaultSize,
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0, NULL,
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wxCB_READONLY);
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#if defined(wxGENERIC_BITMAPCOMBOBOX)
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// This will sure make the list look nicer when larger images are used.
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m_combobox->SetPopupMaxHeight(600);
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#endif
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sizerRight->Add(m_combobox, 0, wxGROW | wxALL, 5);
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sizerRight->SetMinSize(150, 0);
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m_sizerCombo = sizerRight; // save it to modify it later
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// the 3 panes panes compose the window
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sizerTop->Add(sizerLeft, 0, wxGROW | (wxALL & ~wxLEFT), 10);
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sizerTop->Add(sizerMiddle, 5, wxGROW | wxALL, 10);
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sizerTop->Add(sizerRight, 4, wxGROW | (wxALL & ~wxRIGHT), 10);
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// final initializations
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Reset();
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SetSizer(sizerTop);
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}
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// ----------------------------------------------------------------------------
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// operations
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// ----------------------------------------------------------------------------
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void BitmapComboBoxWidgetsPage::Reset()
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{
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m_chkSort->SetValue(false);
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m_chkReadonly->SetValue(true);
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}
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void BitmapComboBoxWidgetsPage::CreateCombo()
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{
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int flags = GetAttrs().m_defaultFlags;
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if ( m_chkSort->GetValue() )
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flags |= wxCB_SORT;
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if ( m_chkReadonly->GetValue() )
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flags |= wxCB_READONLY;
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switch ( m_radioKind->GetSelection() )
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{
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default:
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wxFAIL_MSG( wxT("unknown combo kind") );
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// fall through
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case ComboKind_Default:
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break;
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case ComboKind_Simple:
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flags |= wxCB_SIMPLE;
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break;
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case ComboKind_DropDown:
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flags = wxCB_DROPDOWN;
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break;
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}
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wxArrayString items;
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wxArrayPtrVoid bitmaps;
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if ( m_combobox )
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{
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unsigned int count = m_combobox->GetCount();
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for ( unsigned int n = 0; n < count; n++ )
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{
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items.Add(m_combobox->GetString(n));
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wxBitmap bmp = m_combobox->GetItemBitmap(n);
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bitmaps.Add(new wxBitmap(bmp));
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}
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m_sizerCombo->Detach( m_combobox );
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delete m_combobox;
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}
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m_combobox = new wxBitmapComboBox();
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m_combobox->Create(this, BitmapComboBoxPage_Combo, wxEmptyString,
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wxDefaultPosition, wxDefaultSize,
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0, NULL,
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flags);
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#if defined(wxGENERIC_BITMAPCOMBOBOX)
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// This will sure make the list look nicer when larger images are used.
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m_combobox->SetPopupMaxHeight(600);
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#endif
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unsigned int count = items.GetCount();
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for ( unsigned int n = 0; n < count; n++ )
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{
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wxBitmap* bmp = (wxBitmap*) bitmaps[n];
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m_combobox->Append(items[n], *bmp);
|
|
delete bmp;
|
|
}
|
|
|
|
m_sizerCombo->Add(m_combobox, 0, wxGROW | wxALL, 5);
|
|
m_sizerCombo->Layout();
|
|
|
|
// Allow changing height in order to demonstrate flexible
|
|
// size of image "thumbnail" painted in the control itself.
|
|
long h = 0;
|
|
m_textChangeHeight->GetValue().ToLong(&h);
|
|
if ( h >= 5 )
|
|
m_combobox->SetSize(wxDefaultCoord, h);
|
|
}
|
|
|
|
// ----------------------------------------------------------------------------
|
|
// event handlers
|
|
// ----------------------------------------------------------------------------
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonReset(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
Reset();
|
|
|
|
CreateCombo();
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonChange(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
int sel = m_combobox->GetSelection();
|
|
if ( sel != wxNOT_FOUND )
|
|
{
|
|
#ifndef __WXGTK__
|
|
m_combobox->SetString(sel, m_textChange->GetValue());
|
|
#else
|
|
wxLogMessage(wxT("Not implemented in wxGTK"));
|
|
#endif
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonDelete(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
unsigned long n;
|
|
if ( !m_textDelete->GetValue().ToULong(&n) ||
|
|
(n >= m_combobox->GetCount()) )
|
|
{
|
|
return;
|
|
}
|
|
|
|
m_combobox->Delete(n);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonDeleteSel(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
int sel = m_combobox->GetSelection();
|
|
if ( sel != wxNOT_FOUND )
|
|
{
|
|
m_combobox->Delete(sel);
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonClear(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
m_combobox->Clear();
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonInsert(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
static unsigned int s_item = 0;
|
|
|
|
wxString s = m_textInsert->GetValue();
|
|
if ( !m_textInsert->IsModified() )
|
|
{
|
|
// update the default string
|
|
m_textInsert->SetValue(wxString::Format(wxT("test item %u"), ++s_item));
|
|
}
|
|
|
|
int sel = m_combobox->GetSelection();
|
|
if ( sel == wxNOT_FOUND )
|
|
sel = m_combobox->GetCount();
|
|
|
|
m_combobox->Insert(s, wxNullBitmap, m_combobox->GetSelection());
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnTextChangeHeight(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
long h = 0;
|
|
if ( m_textChangeHeight )
|
|
m_textChangeHeight->GetValue().ToLong(&h);
|
|
if ( h < 5 )
|
|
return;
|
|
m_combobox->SetSize(wxDefaultCoord, h);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonLoadFromFile(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
wxString s;
|
|
int sel = m_combobox->GetSelection();
|
|
if ( sel == wxNOT_FOUND )
|
|
sel = m_combobox->GetCount();
|
|
|
|
wxBitmap bmp = QueryBitmap(&s);
|
|
if (bmp.IsOk())
|
|
m_combobox->Insert(s, bmp, sel);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonSetFromFile(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
wxBitmap bmp = QueryBitmap(NULL);
|
|
if (bmp.IsOk())
|
|
m_combobox->SetItemBitmap(m_combobox->GetSelection(), bmp);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonAddMany(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
// "many" means 1000 here
|
|
for ( unsigned int n = 0; n < 1000; n++ )
|
|
{
|
|
m_combobox->Append(wxString::Format(wxT("item #%u"), n));
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonAddSeveral(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
m_combobox->Append(wxT("First"));
|
|
m_combobox->Append(wxT("another one"));
|
|
m_combobox->Append(wxT("and the last (very very very very very very very very very very long) one"));
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonAddSeveralWithImages(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
static const struct TestEntry
|
|
{
|
|
const char *text;
|
|
unsigned long rgb;
|
|
} s_entries[] =
|
|
{
|
|
{ "Red circle", 0x0000ff },
|
|
{ "Blue circle", 0xff0000 },
|
|
{ "Green circle", 0x00ff00 },
|
|
{ "Black circle", 0x000000 },
|
|
};
|
|
|
|
for ( unsigned i = 0; i < WXSIZEOF(s_entries); i++ )
|
|
{
|
|
const TestEntry& e = s_entries[i];
|
|
m_combobox->Append(e.text, CreateBitmap(wxColour(e.rgb)));
|
|
}
|
|
}
|
|
|
|
#if wxUSE_IMAGE
|
|
void BitmapComboBoxWidgetsPage::RescaleImage(wxImage& image, int w, int h)
|
|
{
|
|
if ( image.GetWidth() == w && image.GetHeight() == h )
|
|
return;
|
|
|
|
if ( w <= 0 || h <= 0 )
|
|
return;
|
|
|
|
static bool isFirstScale = true;
|
|
|
|
if ( isFirstScale && m_combobox->GetCount() > 0 )
|
|
{
|
|
wxMessageBox( wxT("wxBitmapComboBox normally only supports images of one size. ")
|
|
wxT("However, for demonstration purposes, loaded bitmaps are scaled to fit ")
|
|
wxT("using wxImage::Rescale."),
|
|
wxT("Notice"),
|
|
wxOK,
|
|
this );
|
|
|
|
isFirstScale = false;
|
|
}
|
|
|
|
image.Rescale(w, h);
|
|
}
|
|
#endif
|
|
|
|
void BitmapComboBoxWidgetsPage::LoadWidgetImages( wxArrayString* strings, wxImageList* images )
|
|
{
|
|
wxFileName fn;
|
|
fn.AssignCwd();
|
|
fn.AppendDir(wxT("icons"));
|
|
|
|
wxSetCursor(*wxHOURGLASS_CURSOR);
|
|
|
|
if ( !wxDir::Exists(fn.GetFullPath()) ||
|
|
!wxDir::GetAllFiles(fn.GetFullPath(),strings,wxT("*.xpm")) )
|
|
{
|
|
// Try ../../samples/widgets/icons
|
|
fn.RemoveLastDir();
|
|
fn.RemoveLastDir();
|
|
fn.AppendDir(wxT("icons"));
|
|
if ( !wxDir::Exists(fn.GetFullPath()) ||
|
|
!wxDir::GetAllFiles(fn.GetFullPath(),strings,wxT("*.xpm")) )
|
|
{
|
|
// Try ../../../samples/widgets/icons
|
|
fn.AssignCwd();
|
|
fn.RemoveLastDir();
|
|
fn.RemoveLastDir();
|
|
fn.RemoveLastDir();
|
|
fn.AppendDir(wxT("samples"));
|
|
fn.AppendDir(wxT("widgets"));
|
|
fn.AppendDir(wxT("icons"));
|
|
if ( !wxDir::Exists(fn.GetFullPath()) ||
|
|
!wxDir::GetAllFiles(fn.GetFullPath(),strings,wxT("*.xpm")) )
|
|
{
|
|
wxLogWarning(wxT("Could not load widget icons."));
|
|
wxSetCursor(*wxSTANDARD_CURSOR);
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
unsigned int i;
|
|
|
|
// Get size of existing images in list
|
|
wxSize foundSize = m_combobox->GetBitmapSize();
|
|
if ( !foundSize.IsFullySpecified() )
|
|
foundSize = images->GetSize();
|
|
|
|
for ( i=0; i<strings->size(); i++ )
|
|
{
|
|
fn.SetFullName((*strings)[i]);
|
|
wxString name = fn.GetName();
|
|
|
|
// Handle few exceptions
|
|
if ( name == wxT("bmpbtn") )
|
|
{
|
|
strings->RemoveAt(i);
|
|
i--;
|
|
}
|
|
else
|
|
{
|
|
#if wxUSE_IMAGE
|
|
wxASSERT(fn.FileExists());
|
|
wxImage image(fn.GetFullPath());
|
|
wxASSERT(image.IsOk());
|
|
RescaleImage(image, foundSize.x, foundSize.y);
|
|
wxBitmap bmp(image);
|
|
wxASSERT( bmp.IsOk() );
|
|
#else
|
|
wxBitmap bmp(wxNullBitmap);
|
|
#endif
|
|
images->Add(bmp);
|
|
(*strings)[i] = name;
|
|
|
|
// if the combobox is empty, use as bitmap size of the image list
|
|
// the size of the first valid image loaded
|
|
if (foundSize == wxDefaultSize)
|
|
foundSize = bmp.GetSize();
|
|
}
|
|
}
|
|
|
|
wxSetCursor(*wxSTANDARD_CURSOR);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnButtonAddWidgetIcons(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
wxArrayString strings;
|
|
|
|
wxSize sz = m_combobox->GetBitmapSize();
|
|
if ( sz.x <= 0 )
|
|
{
|
|
sz.x = 32;
|
|
sz.y = 32;
|
|
}
|
|
|
|
wxImageList images(sz.x, sz.y);
|
|
|
|
LoadWidgetImages(&strings, &images);
|
|
|
|
unsigned int i;
|
|
|
|
for ( i=0; i<strings.size(); i++ )
|
|
{
|
|
m_combobox->Append(strings[i], images.GetBitmap(i));
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnUpdateUIResetButton(wxUpdateUIEvent& event)
|
|
{
|
|
if (m_combobox)
|
|
event.Enable( m_chkSort->GetValue() || m_chkReadonly->GetValue() );
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnUpdateUIInsert(wxUpdateUIEvent& event)
|
|
{
|
|
if (m_combobox)
|
|
{
|
|
bool enable = !(m_combobox->GetWindowStyle() & wxCB_SORT);
|
|
|
|
event.Enable(enable);
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnUpdateUIDeleteButton(wxUpdateUIEvent& event)
|
|
{
|
|
if (m_combobox)
|
|
{
|
|
unsigned long n;
|
|
event.Enable(m_textDelete->GetValue().ToULong(&n) &&
|
|
(n < (unsigned)m_combobox->GetCount()));
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnUpdateUIItemManipulator(wxUpdateUIEvent& event)
|
|
{
|
|
if (m_combobox)
|
|
event.Enable(m_combobox->GetSelection() != wxNOT_FOUND);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnUpdateUIClearButton(wxUpdateUIEvent& event)
|
|
{
|
|
if (m_combobox)
|
|
event.Enable(m_combobox->GetCount() != 0);
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnComboText(wxCommandEvent& event)
|
|
{
|
|
if (!m_combobox)
|
|
return;
|
|
|
|
wxString s = event.GetString();
|
|
|
|
wxASSERT_MSG( s == m_combobox->GetValue(),
|
|
wxT("event and combobox values should be the same") );
|
|
|
|
if (event.GetEventType() == wxEVT_TEXT_ENTER)
|
|
{
|
|
wxLogMessage(wxT("BitmapCombobox enter pressed (now '%s')"), s.c_str());
|
|
}
|
|
else
|
|
{
|
|
wxLogMessage(wxT("BitmapCombobox text changed (now '%s')"), s.c_str());
|
|
}
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnComboBox(wxCommandEvent& event)
|
|
{
|
|
long sel = event.GetInt();
|
|
m_textDelete->SetValue(wxString::Format(wxT("%ld"), sel));
|
|
|
|
wxLogMessage(wxT("BitmapCombobox item %ld selected"), sel);
|
|
|
|
wxLogMessage(wxT("BitmapCombobox GetValue(): %s"), m_combobox->GetValue().c_str() );
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnCheckOrRadioBox(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
CreateCombo();
|
|
}
|
|
|
|
#if wxUSE_IMAGE
|
|
wxBitmap BitmapComboBoxWidgetsPage::LoadBitmap(const wxString& filepath)
|
|
{
|
|
// Get size of existing images in list
|
|
wxSize foundSize = m_combobox->GetBitmapSize();
|
|
|
|
// Have some reasonable maximum size
|
|
if ( foundSize.x <= 0 )
|
|
{
|
|
foundSize.x = IMG_SIZE_TRUNC;
|
|
foundSize.y = IMG_SIZE_TRUNC;
|
|
}
|
|
|
|
wxImage image(filepath);
|
|
if ( image.IsOk() )
|
|
{
|
|
// Rescale very large images
|
|
int ow = image.GetWidth();
|
|
int oh = image.GetHeight();
|
|
|
|
if ( foundSize.x > 0 &&
|
|
(ow != foundSize.x || oh != foundSize.y) )
|
|
{
|
|
int w = ow;
|
|
if ( w > foundSize.x )
|
|
w = foundSize.x;
|
|
int h = oh;
|
|
if ( h > foundSize.y )
|
|
h = foundSize.y;
|
|
|
|
RescaleImage(image, w, h);
|
|
}
|
|
|
|
return wxBitmap(image);
|
|
}
|
|
|
|
return wxNullBitmap;
|
|
}
|
|
#else
|
|
wxBitmap BitmapComboBoxWidgetsPage::LoadBitmap(const wxString& WXUNUSED(filepath))
|
|
{
|
|
return wxNullBitmap;
|
|
}
|
|
#endif
|
|
|
|
wxBitmap BitmapComboBoxWidgetsPage::QueryBitmap(wxString* pStr)
|
|
{
|
|
wxString filepath = wxLoadFileSelector(wxT("image"),
|
|
wxEmptyString,
|
|
wxEmptyString,
|
|
this);
|
|
|
|
wxBitmap bitmap;
|
|
|
|
::wxSetCursor( *wxHOURGLASS_CURSOR );
|
|
|
|
if ( !filepath.empty() )
|
|
{
|
|
if ( pStr )
|
|
{
|
|
*pStr = wxFileName(filepath).GetName();
|
|
}
|
|
|
|
bitmap = LoadBitmap(filepath);
|
|
}
|
|
|
|
if (bitmap.IsOk())
|
|
{
|
|
wxLogDebug(wxT("%i, %i"),bitmap.GetWidth(), bitmap.GetHeight());
|
|
}
|
|
|
|
::wxSetCursor( *wxSTANDARD_CURSOR );
|
|
|
|
return bitmap;
|
|
}
|
|
|
|
wxBitmap BitmapComboBoxWidgetsPage::CreateBitmap(const wxColour& colour)
|
|
{
|
|
const int w = 10,
|
|
h = 10;
|
|
|
|
wxMemoryDC dc;
|
|
wxBitmap bmp(w, h);
|
|
dc.SelectObject(bmp);
|
|
|
|
// Draw transparent background
|
|
wxColour magic(255, 0, 255);
|
|
wxBrush magicBrush(magic);
|
|
dc.SetBrush(magicBrush);
|
|
dc.SetPen(*wxTRANSPARENT_PEN);
|
|
dc.DrawRectangle(0, 0, w, h);
|
|
|
|
// Draw image content
|
|
dc.SetBrush(wxBrush(colour));
|
|
dc.DrawCircle(h/2, h/2+1, h/2);
|
|
|
|
dc.SelectObject(wxNullBitmap);
|
|
|
|
// Finalize transparency with a mask
|
|
wxMask *mask = new wxMask(bmp, magic);
|
|
bmp.SetMask(mask);
|
|
|
|
return bmp;
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnDropDown(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
wxLogMessage(wxT("Combobox dropped down"));
|
|
}
|
|
|
|
void BitmapComboBoxWidgetsPage::OnCloseUp(wxCommandEvent& WXUNUSED(event))
|
|
{
|
|
wxLogMessage(wxT("Combobox closed up"));
|
|
}
|
|
|
|
#endif // wxUSE_BITMAPCOMBOBOX
|