X-Git-Url: https://git.saurik.com/wxWidgets.git/blobdiff_plain/debe6624c1e9d4bf3243381153d1e173c849bcd8..7b9da2077d0975db6c965a85c91d5aca671ab5e3:/src/msw/button.cpp diff --git a/src/msw/button.cpp b/src/msw/button.cpp index 13f671d53b..e369bf170d 100644 --- a/src/msw/button.cpp +++ b/src/msw/button.cpp @@ -6,190 +6,287 @@ // Created: 04/01/98 // RCS-ID: $Id$ // Copyright: (c) Julian Smart and Markus Holzem -// Licence: wxWindows license +// Licence: wxWindows license ///////////////////////////////////////////////////////////////////////////// +// ============================================================================ +// declarations +// ============================================================================ + +// ---------------------------------------------------------------------------- +// headers +// ---------------------------------------------------------------------------- #ifdef __GNUG__ -#pragma implementation "button.h" + #pragma implementation "button.h" #endif // For compilers that support precompilation, includes "wx.h". #include "wx/wxprec.h" #ifdef __BORLANDC__ -#pragma hdrstop + #pragma hdrstop #endif #ifndef WX_PRECOMP -#include "wx/button.h" + #include "wx/button.h" + #include "wx/brush.h" + #include "wx/panel.h" + #include "wx/bmpbuttn.h" + #include "wx/settings.h" + #include "wx/dcscreen.h" #endif #include "wx/msw/private.h" +// ---------------------------------------------------------------------------- +// macros +// ---------------------------------------------------------------------------- + #if !USE_SHARED_LIBRARY -IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) + IMPLEMENT_DYNAMIC_CLASS(wxButton, wxControl) #endif -#define BUTTON_HEIGHT_FACTOR (EDIT_CONTROL_FACTOR * 1.1) - -// Buttons - -bool wxButton::MSWCommand(WXUINT param, WXWORD id) +// this macro tries to adjust the default button height to a reasonable value +// using the char height as the base +#define BUTTON_HEIGHT_FROM_CHAR_HEIGHT(cy) (11*EDIT_HEIGHT_FROM_CHAR_HEIGHT(cy)/10) + +// ============================================================================ +// implementation +// ============================================================================ + +// ---------------------------------------------------------------------------- +// creation/destruction +// ---------------------------------------------------------------------------- + +bool wxButton::Create(wxWindow *parent, + wxWindowID id, + const wxString& label, + const wxPoint& pos, + const wxSize& size, + long style, + const wxValidator& validator, + const wxString& name) { - if (param == BN_CLICKED) - { - wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, id); - event.SetEventObject(this); - ProcessCommand(event); + if ( !CreateBase(parent, id, pos, size, style, validator, name) ) + return FALSE; + + parent->AddChild((wxButton *)this); + + m_backgroundColour = parent->GetBackgroundColour() ; + m_foregroundColour = parent->GetForegroundColour() ; + + m_hWnd = (WXHWND)CreateWindowEx + ( + MakeExtendedStyle(m_windowStyle), + wxT("BUTTON"), + label, + WS_VISIBLE | WS_TABSTOP | WS_CHILD, + 0, 0, 0, 0, + GetWinHwnd(parent), + (HMENU)m_windowId, + wxGetInstance(), + NULL + ); + + // Subclass again for purposes of dialog editing mode + SubclassWin(m_hWnd); + + SetFont(parent->GetFont()); + + SetSize(pos.x, pos.y, size.x, size.y); + + // bad hack added by Robert to make buttons at least + // 80 pixels wide. There are probably better ways... + // TODO. FIXME. + wxSize nsize( GetSize() ); + if ((nsize.x < 80) || (nsize.y < 23)) + { + if ((size.x == -1) && (nsize.x < 80)) + nsize.x = 80; + if ((size.y == -1) && (nsize.y < 23)) + nsize.y = 23; + SetSize( nsize ); + } + return TRUE; - } - else return FALSE; } -bool wxButton::Create(wxWindow *parent, wxWindowID id, const wxString& label, - const wxPoint& pos, - const wxSize& size, long style, - const wxValidator& validator, - const wxString& name) +wxButton::~wxButton() { - SetName(name); - SetValidator(validator); - - parent->AddChild((wxButton *)this); - m_backgroundColour = parent->GetDefaultBackgroundColour() ; - m_foregroundColour = parent->GetDefaultForegroundColour() ; - - m_windowStyle = (long&)style; - - int x = pos.x; - int y = pos.y; - int width = size.x; - int height = size.y; - - if (id == -1) - m_windowId = NewControlId(); - else - m_windowId = id; - - DWORD exStyle = MakeExtendedStyle(m_windowStyle); - HWND wx_button = - CreateWindowEx(exStyle, "BUTTON", label, BS_PUSHBUTTON | WS_TABSTOP | WS_CHILD, - 0, 0, 0, 0, (HWND) parent->GetHWND(), (HMENU)m_windowId, - wxGetInstance(), NULL); - -#if CTL3D -// if (!(GetParent()->GetWindowStyleFlag() & wxUSER_COLOURS)) -// Ctl3dSubclassCtl(wx_button); -#endif + wxPanel *panel = wxDynamicCast(GetParent(), wxPanel); + if ( panel ) + { + if ( panel->GetDefaultItem() == this ) + { + // don't leave the panel with invalid default item + panel->SetDefaultItem(NULL); + } + } +} - m_hWnd = (WXHWND)wx_button; +// ---------------------------------------------------------------------------- +// size management including autosizing +// ---------------------------------------------------------------------------- - // Subclass again for purposes of dialog editing mode - SubclassWin((WXHWND)wx_button); +wxSize wxButton::DoGetBestSize() +{ + wxString label = wxGetWindowText(GetHWND()); + int wBtn; + GetTextExtent(label, &wBtn, NULL); + + int wChar, hChar; + wxGetCharSize(GetHWND(), &wChar, &hChar, &GetFont()); - SetFont(* parent->GetFont()); + // add a margin - the button is wider than just its label + wBtn += 3*wChar; - SetSize(x, y, width, height); - ShowWindow(wx_button, SW_SHOW); + // the button height is proportional to the height of the font used + int hBtn = BUTTON_HEIGHT_FROM_CHAR_HEIGHT(hChar); - return TRUE; + return wxSize(wBtn, hBtn); } -void wxButton::SetSize(int x, int y, int width, int height, int sizeFlags) +/* static */ +wxSize wxButton::GetDefaultSize() { - int currentX, currentY; - GetPosition(¤tX, ¤tY); - int x1 = x; - int y1 = y; - if (x == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - x1 = currentX; - if (y == -1 || (sizeFlags & wxSIZE_ALLOW_MINUS_ONE)) - y1 = currentY; - - int actualWidth = width; - int actualHeight = height; - int ww, hh; - GetSize(&ww, &hh); - - int current_width; - int cyf; - char buf[300]; - GetWindowText((HWND) GetHWND(), buf, 300); - GetTextExtent(buf, ¤t_width, &cyf,NULL,NULL,GetFont()); - - // If we're prepared to use the existing width, then... - if (width == -1 && ((sizeFlags & wxSIZE_AUTO_WIDTH) != wxSIZE_AUTO_WIDTH)) - actualWidth = ww; - else if (width == -1) - { - int cx; - int cy; - wxGetCharSize(GetHWND(), &cx, &cy,GetFont()); - actualWidth = (int)(current_width + 3*cx) ; - } - - // If we're prepared to use the existing height, then... - if (height == -1 && ((sizeFlags & wxSIZE_AUTO_HEIGHT) != wxSIZE_AUTO_HEIGHT)) - actualHeight = hh; - else if (height == -1) - { - actualHeight = (int)(cyf*BUTTON_HEIGHT_FACTOR) ; - } - - MoveWindow((HWND) GetHWND(), x1, y1, actualWidth, actualHeight, TRUE); + static wxSize s_sizeBtn; + + if ( s_sizeBtn.x == 0 ) + { + wxScreenDC dc; + dc.SetFont(wxSystemSettings::GetSystemFont(wxSYS_DEFAULT_GUI_FONT)); + + // the size of a standard button in the dialog units is 50x14, + // translate this to pixels + // NB1: the multipliers come from the Windows convention + // NB2: the extra +1/+2 were needed to get the size be the same as the + // size of the buttons in the standard dialog - I don't know how + // this happens, but on my system this size is 75x23 in pixels and + // 23*8 isn't even divisible by 14... Would be nice to understand + // why these constants are needed though! + s_sizeBtn.x = (50 * (dc.GetCharWidth() + 1))/4; + s_sizeBtn.y = ((14 * dc.GetCharHeight()) + 2)/8; + } + + return s_sizeBtn; } -void wxButton::SetDefault(void) +// ---------------------------------------------------------------------------- +// set this button as the default one in its panel +// ---------------------------------------------------------------------------- + +void wxButton::SetDefault() { - wxWindow *parent = (wxWindow *)GetParent(); - if (parent) - parent->SetDefaultItem(this); - - if (parent) - { - SendMessage((HWND) parent->GetHWND(), DM_SETDEFID, m_windowId, 0L); - } + wxWindow *parent = GetParent(); + wxButton *btnOldDefault = NULL; + wxPanel *panel = wxDynamicCast(parent, wxPanel); + if ( panel ) + { + btnOldDefault = panel->GetDefaultItem(); + panel->SetDefaultItem(this); + } + + if ( parent ) + { + SendMessage(GetWinHwnd(parent), DM_SETDEFID, m_windowId, 0L); + } + + // this doesn't work with bitmap buttons because it also removes the + // "ownerdrawn" style... + if ( btnOldDefault && !wxDynamicCast(btnOldDefault, wxBitmapButton) ) + { + // remove the BS_DEFPUSHBUTTON style from the other button + long style = GetWindowLong(GetHwndOf(btnOldDefault), GWL_STYLE); + style &= ~BS_DEFPUSHBUTTON; + SendMessage(GetHwndOf(btnOldDefault), BM_SETSTYLE, style, 1L); + } + + // set this button as the default + long style = GetWindowLong(GetHwnd(), GWL_STYLE); + style |= BS_DEFPUSHBUTTON; + SendMessage(GetHwnd(), BM_SETSTYLE, style, 1L); } -wxString wxButton::GetLabel(void) const +// ---------------------------------------------------------------------------- +// helpers +// ---------------------------------------------------------------------------- + +bool wxButton::SendClickEvent() { - GetWindowText((HWND) GetHWND(), wxBuffer, 300); - return wxString(wxBuffer); + wxCommandEvent event(wxEVT_COMMAND_BUTTON_CLICKED, GetId()); + event.SetEventObject(this); + + return ProcessCommand(event); } -void wxButton::SetLabel(const wxString& label) +void wxButton::Command(wxCommandEvent & event) { - SetWindowText((HWND) GetHWND(), (const char *) label); + ProcessCommand(event); } -WXHBRUSH wxButton::OnCtlColor(WXHDC pDC, WXHWND pWnd, WXUINT nCtlColor, - WXUINT message, WXWPARAM wParam, WXLPARAM lParam) +// ---------------------------------------------------------------------------- +// event/message handlers +// ---------------------------------------------------------------------------- + +bool wxButton::MSWCommand(WXUINT param, WXWORD id) { -/* - WXHBRUSH hBrush = (WXHBRUSH) MSWDefWindowProc(message, wParam, lParam); -// ::SetTextColor((HDC) pDC, GetSysColor(COLOR_BTNTEXT)); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), - GetForegroundColour().Blue())); - - return hBrush; -*/ - // This doesn't in fact seem to make any difference at all - buttons are always - // the same colour. - ::SetBkColor((HDC) pDC, RGB(GetBackgroundColour().Red(), GetBackgroundColour().Green(), GetBackgroundColour().Blue())); - ::SetTextColor((HDC) pDC, RGB(GetForegroundColour().Red(), GetForegroundColour().Green(), GetForegroundColour().Blue())); - - wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(GetBackgroundColour(), wxSOLID); - - // Note that this will be cleaned up in wxApp::OnIdle, if backgroundBrush - // has a zero usage count. - // NOT NOW; CHANGED. -// backgroundBrush->RealizeResource(); - return (WXHBRUSH) backgroundBrush->GetResourceHandle(); + bool processed = FALSE; + switch ( param ) + { + case 1: // means that the message came from an accelerator + case BN_CLICKED: + processed = SendClickEvent(); + break; + } + + return processed; } -void wxButton::Command (wxCommandEvent & event) +WXHBRUSH wxButton::OnCtlColor(WXHDC pDC, + WXHWND pWnd, + WXUINT nCtlColor, + WXUINT message, + WXWPARAM wParam, + WXLPARAM lParam) { - ProcessCommand (event); -} + const HDC& hdc = (HDC)pDC; + const wxColour& colBack = GetBackgroundColour(); + ::SetBkColor(hdc, RGB(colBack.Red(), colBack.Green(), colBack.Blue())); + const wxColour& colFor = GetForegroundColour(); + ::SetTextColor(hdc, RGB(colFor.Red(), colFor.Green(), colFor.Blue())); + + ::SetBkMode(hdc, OPAQUE); + + wxBrush *backgroundBrush = wxTheBrushList->FindOrCreateBrush(colBack, + wxSOLID); + backgroundBrush->RealizeResource(); + return (WXHBRUSH)backgroundBrush->GetResourceHandle(); +} + +long wxButton::MSWWindowProc(WXUINT nMsg, WXWPARAM wParam, WXLPARAM lParam) +{ + // make sure that we won't have BS_DEFPUSHBUTTON style any more if the + // focus is being transfered to another button with the same parent - + // otherwise, we could finish with 2 default buttons inside one panel + if ( (nMsg == WM_KILLFOCUS) && + (GetWindowLong(GetHwnd(), GWL_STYLE) & BS_DEFPUSHBUTTON) ) + { + wxWindow *parent = GetParent(); + wxWindow *win = wxFindWinFromHandle((WXHWND)wParam); + if ( win && win->GetParent() == parent ) + { + wxPanel *panel = wxDynamicCast(parent, wxPanel); + if ( panel ) + { + panel->SetDefaultItem(this); + } + // else: I don't know what to do - we'll still have the problem + // with multiple default buttons in a dialog... + } + } + + // let the base class do all real processing + return wxControl::MSWWindowProc(nMsg, wParam, lParam); +}