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/*----------------------------------------------------------------------------*/
/* */
/* Copyright (c) 1995, 2004 IBM Corporation. All rights reserved. */
/* Copyright (c) 2005-2010 Rexx Language Association. All rights reserved. */
/* */
/* This program and the accompanying materials are made available under */
/* the terms of the Common Public License v1.0 which accompanies this */
/* distribution. A copy is also available at the following address: */
/* http://www.oorexx.org/license.html */
/* */
/* Redistribution and use in source and binary forms, with or */
/* without modification, are permitted provided that the following */
/* conditions are met: */
/* */
/* Redistributions of source code must retain the above copyright */
/* notice, this list of conditions and the following disclaimer. */
/* Redistributions in binary form must reproduce the above copyright */
/* notice, this list of conditions and the following disclaimer in */
/* the documentation and/or other materials provided with the distribution. */
/* */
/* Neither the name of Rexx Language Association nor the names */
/* of its contributors may be used to endorse or promote products */
/* derived from this software without specific prior written permission. */
/* */
/* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS */
/* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT */
/* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS */
/* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT */
/* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, */
/* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED */
/* TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, */
/* OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY */
/* OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING */
/* NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS */
/* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */
/* */
/*----------------------------------------------------------------------------*/
/**
* oodControl.cpp
*
* Contains the base classes used for an object that represents a Windows
* Control.
*/
#include "ooDialog.hpp" // Must be first, includes windows.h, commctrl.h, and oorexxapi.h
#include <shlwapi.h>
#include <OleAcc.h>
#include "APICommon.hpp"
#include "oodCommon.hpp"
#include "oodMessaging.hpp"
#include "oodDeviceGraphics.hpp"
#include "oodData.hpp"
#include "oodControl.hpp"
const char *controlType2winName(oodControl_t control)
{
switch ( control )
{
case winStatic : return WC_STATIC;
case winPushButton : return WC_BUTTON;
case winRadioButton : return WC_BUTTON;
case winCheckBox : return WC_BUTTON;
case winGroupBox : return WC_BUTTON;
case winEdit : return WC_EDIT;
case winListBox : return WC_LISTBOX;
case winComboBox : return WC_COMBOBOX;
case winScrollBar : return WC_SCROLLBAR;
case winTreeView : return WC_TREEVIEW;
case winListView : return WC_LISTVIEW;
case winTab : return WC_TABCONTROL;
case winProgressBar : return PROGRESS_CLASS;
case winTrackBar : return TRACKBAR_CLASS;
case winMonthCalendar : return MONTHCAL_CLASS;
case winDateTimePicker : return DATETIMEPICK_CLASS;
case winUpDown : return UPDOWN_CLASS;
default : return "";
}
}
const char *controlType2className(oodControl_t control)
{
switch ( control )
{
case winStatic : return "STATIC";
case winPushButton : return "BUTTON";
case winRadioButton : return "RADIOBUTTON";
case winCheckBox : return "CHECKBOX";
case winGroupBox : return "GROUPBOX";
case winEdit : return "EDIT";
case winListBox : return "LISTBOX";
case winComboBox : return "COMBOBOX";
case winScrollBar : return "SCROLLBAR";
case winTreeView : return "TREEVIEW";
case winListView : return "LISTVIEW";
case winTab : return "TAB";
case winProgressBar : return "PROGRESSBAR";
case winTrackBar : return "TRACKBAR";
case winMonthCalendar : return "MONTHCALENDAR";
case winDateTimePicker : return "DATETIMEPICKER";
case winUpDown : return "UPDOWN";
default : return "";
}
}
oodControl_t winName2controlType(const char *className)
{
if ( strcmp(className, WC_STATIC ) == 0 ) return winStatic;
else if ( strcmp(className, WC_BUTTON ) == 0 ) return winPushButton;
else if ( strcmp(className, WC_EDIT ) == 0 ) return winEdit;
else if ( strcmp(className, WC_LISTBOX ) == 0 ) return winListBox;
else if ( strcmp(className, WC_COMBOBOX ) == 0 ) return winComboBox;
else if ( strcmp(className, WC_SCROLLBAR ) == 0 ) return winScrollBar;
else if ( strcmp(className, WC_TREEVIEW ) == 0 ) return winTreeView;
else if ( strcmp(className, WC_LISTVIEW ) == 0 ) return winListView;
else if ( strcmp(className, WC_TABCONTROL ) == 0 ) return winTab;
else if ( strcmp(className, PROGRESS_CLASS ) == 0 ) return winProgressBar;
else if ( strcmp(className, TRACKBAR_CLASS ) == 0 ) return winTrackBar;
else if ( strcmp(className, MONTHCAL_CLASS ) == 0 ) return winMonthCalendar;
else if ( strcmp(className, DATETIMEPICK_CLASS) == 0 ) return winDateTimePicker;
else if ( strcmp(className, UPDOWN_CLASS ) == 0 ) return winUpDown;
else
{
return winUnknown;
}
}
oodControl_t control2controlType(HWND hControl)
{
oodControl_t type = winUnknown;
TCHAR buf[64];
if ( RealGetWindowClass(hControl, buf, sizeof(buf)) )
{
type = winName2controlType(buf);
if ( type == winPushButton )
{
BUTTONTYPE buttonType = getButtonInfo(hControl, NULL, NULL);
if ( buttonType == check )
{
type = winCheckBox;
}
else if ( buttonType == radio )
{
type = winRadioButton;
}
else if ( buttonType == group )
{
type = winGroupBox;
}
}
}
return type;
}
/**
* Determine if a dialog control belongs to the specified dialog control class.
*
* @param hControl Handle to the control.
* @param control One of the oodControl types specifying the class to check
* for.
*
* @return True if the dialog control is the type specified, otherwise false.
*/
bool isControlMatch(HWND hControl, oodControl_t control)
{
char buf[64];
const char *pClass = controlType2winName(control);
if ( ! RealGetWindowClass(hControl, buf, sizeof(buf)) || strcmp(buf, pClass) != 0 )
{
return false;
}
if ( control == winCheckBox || control == winRadioButton || control == winGroupBox )
{
BUTTONTYPE type = getButtonInfo(hControl, NULL, NULL);
switch ( control )
{
case winCheckBox :
if ( type != check )
{
return false;
}
break;
case winRadioButton :
if ( type != radio )
{
return false;
}
break;
case winGroupBox :
if ( type != group )
{
return false;
}
break;
}
}
return true;
}
/**
* Resolves a string to the type of windows control it is. The function only
* compares enough letters to determine unequivocally if it matches one of the
* supported dialog controls.
*
* Example:
*
* CSTRING msgName = "CONNECTEDITDATA";
* oodControl_t ctrl = oodName2controlType(msgName + 7);
*
* @param name The name to resolve.
*
* @return The windows control type. winUnknown is returned if there is no
* match.
*
* @remarks There are some generic message names such as getControlDataPage
* that need to match to winUnknown. CO is not sufficient to
* distinguish between comboBox and control.
*/
oodControl_t oodName2controlType(CSTRING name)
{
if ( StrCmpN(name, "CHECKBOX", 3 ) == 0 ) return winCheckBox;
else if ( StrCmpN(name, "COMBOBOX", 3 ) == 0 ) return winComboBox;
else if ( StrCmpN(name, "DATETIMEPICKER", 1) == 0 ) return winDateTimePicker;
else if ( StrCmpN(name, "EDIT", 1 ) == 0 ) return winEdit;
else if ( StrCmpN(name, "GROUPBOX", 1 ) == 0 ) return winGroupBox;
else if ( StrCmpN(name, "LISTBOX", 5 ) == 0 ) return winListBox;
else if ( StrCmpN(name, "LISTVIEW", 5 ) == 0 ) return winListView;
else if ( StrCmpN(name, "MONTHCALENDAR", 1 ) == 0 ) return winMonthCalendar;
else if ( StrCmpN(name, "PROGRESSBAR", 2 ) == 0 ) return winProgressBar;
else if ( StrCmpN(name, "PUSHBUTTON", 2 ) == 0 ) return winPushButton;
else if ( StrCmpN(name, "RADIOBUTTON", 1 ) == 0 ) return winRadioButton;
else if ( StrCmpN(name, "SCROLLBAR", 2 ) == 0 ) return winScrollBar;
else if ( StrCmpN(name, "STATIC", 2 ) == 0 ) return winStatic;
else if ( StrCmpN(name, "TAB", 3 ) == 0 ) return winTab;
else if ( StrCmpN(name, "TRACKBAR", 3 ) == 0 ) return winTrackBar;
else if ( StrCmpN(name, "TREEVIEW", 3 ) == 0 ) return winTreeView;
else if ( StrCmpN(name, "UPDOWN", 1 ) == 0 ) return winUpDown;
else return winUnknown;
}
RexxClassObject oodClass4controlType(RexxMethodContext *c, oodControl_t controlType)
{
RexxClassObject controlClass = NULLOBJECT;
const char *className = controlType2className(controlType);
controlClass = rxGetContextClass(c, className);
if ( controlClass == NULLOBJECT )
{
// An exception has been raised, which we don't want. So, clear it.
c->ClearCondition();
}
return controlClass;
}
/**
* Produce a string representation of an "object state."
*
* Windows Accessibility uses "Object State Constants" to describe the states of
* objects. An object is associated with one or more of these state values at
* any time.
*
* This is used in a few places in ooDialog. MSDN is not explicit in describing
* what state constants are valid in these places. So this function includes
* all the valid state contstants, even though most of them are probably not
* used.
*/
RexxStringObject objectStateToString(RexxMethodContext *c, uint32_t state)
{
char buf[512];
buf[0] = '\0';
if ( state & STATE_SYSTEM_ANIMATED) strcat(buf, "ANIMATED ");
if ( state & STATE_SYSTEM_BUSY) strcat(buf, "BUSY ");
if ( state & STATE_SYSTEM_CHECKED) strcat(buf, "CHECKED ");
if ( state & STATE_SYSTEM_COLLAPSED) strcat(buf, "COLLAPSED ");
if ( state & STATE_SYSTEM_DEFAULT) strcat(buf, "DEFAULT ");
if ( state & STATE_SYSTEM_EXPANDED) strcat(buf, "EXPANDED ");
if ( state & STATE_SYSTEM_EXTSELECTABLE) strcat(buf, "EXTSELECTABLE ");
if ( state & STATE_SYSTEM_FLOATING) strcat(buf, "FLOATING ");
if ( state & STATE_SYSTEM_FOCUSABLE) strcat(buf, "FOCUSABLE ");
if ( state & STATE_SYSTEM_FOCUSED) strcat(buf, "FOCUSED ");
if ( state & STATE_SYSTEM_HASPOPUP) strcat(buf, "HASPOPUP ");
if ( state & STATE_SYSTEM_HOTTRACKED) strcat(buf, "HOTTRACKED ");
if ( state & STATE_SYSTEM_INDETERMINATE) strcat(buf, "INDETERMINATE ");
if ( state & STATE_SYSTEM_INVISIBLE) strcat(buf, "INVISIBLE ");
if ( state & STATE_SYSTEM_LINKED) strcat(buf, "LINKED ");
if ( state & STATE_SYSTEM_MARQUEED) strcat(buf, "MARQUEED ");
if ( state & STATE_SYSTEM_MOVEABLE) strcat(buf, "MOVEABLE ");
if ( state & STATE_SYSTEM_MULTISELECTABLE) strcat(buf, "MULTISELECTABLE ");
if ( state & STATE_SYSTEM_OFFSCREEN) strcat(buf, "OFFSCREEN ");
if ( state & STATE_SYSTEM_PRESSED) strcat(buf, "PRESSED ");
if ( state & STATE_SYSTEM_PROTECTED) strcat(buf, "PROTECTED ");
if ( state & STATE_SYSTEM_READONLY) strcat(buf, "READONLY ");
if ( state & STATE_SYSTEM_SELECTABLE) strcat(buf, "SELECTABLE ");
if ( state & STATE_SYSTEM_SELECTED) strcat(buf, "SELECTED ");
if ( state & STATE_SYSTEM_SELFVOICING) strcat(buf, "SELFVOICING ");
if ( state & STATE_SYSTEM_SIZEABLE) strcat(buf, "SIZEABLE ");
if ( state & STATE_SYSTEM_TRAVERSED) strcat(buf, "TRAVERSED ");
if ( state & STATE_SYSTEM_UNAVAILABLE) strcat(buf, "UNAVAILABLE ");
*(buf + strlen(buf)) = '\0';
return c->String(buf);
}
/**
* Creates the Rexx dialog control object that represents the underlying Windows
* dialog control.
*
* The control object can, almost, be created entirely from within the C / C++
* environment. A method context and the Rexx parent dialog are needed.
*
* @param c
* @param hControl
* @param hDlg
* @param id
* @param controlType
* @param self
* @param isCategoryDlg
* @param putInBag
*
* @return RexxObjectPtr
*/
RexxObjectPtr createRexxControl(RexxMethodContext *c, HWND hControl, HWND hDlg, uint32_t id, oodControl_t controlType,
RexxObjectPtr self, bool isCategoryDlg, bool putInBag)
{
RexxObjectPtr result = TheNilObj;
// Check if the Rexx control object has already been instantiated.
RexxObjectPtr rxControl = (RexxObjectPtr)getWindowPtr(hControl, GWLP_USERDATA);
if ( rxControl != NULLOBJECT )
{
// Okay, this specific control has already had a control object
// instantiated to represent it. We return this object.
result = rxControl;
goto out;
}
// No pointer is stored in the user data area, so no control object has been
// instantiated for this specific control, yet. We instantiate one now and
// then store the object in the user data area of the control window.
PNEWCONTROLPARAMS pArgs = (PNEWCONTROLPARAMS)malloc(sizeof(NEWCONTROLPARAMS));
if ( pArgs == NULL )
{
outOfMemoryException(c->threadContext);
goto out;
}
RexxClassObject controlCls = oodClass4controlType(c, controlType);
if ( controlCls == NULLOBJECT )
{
goto out;
}
pArgs->isCatDlg = isCategoryDlg;
pArgs->controlType = controlType;
pArgs->hwnd = hControl;
pArgs->hwndDlg = hDlg;
pArgs->id = id;
pArgs->parentDlg = self;
rxControl = c->SendMessage1(controlCls, "NEW", c->NewPointer(pArgs));
free(pArgs);
if ( rxControl != NULLOBJECT && rxControl != TheNilObj )
{
result = rxControl;
setWindowPtr(hControl, GWLP_USERDATA, (LONG_PTR)result);
if ( putInBag )
{
c->SendMessage1(self, "PUTCONTROL", result);
}
}
out:
return result;
}
/**
* Creates a Rexx dialog control from within a dialog method, using the window
* handle of the control.
*
* In the Windows API it is easy to get the window handle of a control within a
* dialog. Normally we create Rexx dialog control objects from within Rexx
* code, but it is convenient to be able to create the Rexx dialog control from
* within native code.
*
* For instance, the Windows PropertySheet API gives you access to the window
* handle of the tab control within the property sheet. From that handle we want
* to be able to create a Rexx dialog control object to pass back into the Rexx
* code. Actually, this is the only case so far, but the code is made generic
* in the assumption that other uses will come up.
*
* @param c The method context we are operating in.
* @param pcpbd The CSelf struct of the dialog the control resides in.
* @param hCtrl The window handle of the companion control. This can be
* null, in which case .nil is returned.
* @param type The type of the dialog control.
* @param putInBag Whether the new Rexx dialog control object should be
* protected from garbage collection by being placed in the
* Rexx dialog object's control bag.
*
* @return A Rexx dialog control object that represents the dialo control, or
* .nil if the object is not instantiated.
*
* @remarks The second from the last argument to createRexxControl() is true if
* the parent dialog is a CategoryDialog, otherwise false. Since the
* CategoryDialog is now deprecated, we just pass false.
*/
RexxObjectPtr createControlFromHwnd(RexxMethodContext *c, pCPlainBaseDialog pcpbd, HWND hCtrl,
oodControl_t type, bool putInBag)
{
RexxObjectPtr result = TheNilObj;
if ( hCtrl == NULL )
{
goto done_out;
}
uint32_t id = (uint32_t)GetDlgCtrlID(hCtrl);
result = createRexxControl(c, hCtrl, pcpbd->hDlg, id, type, pcpbd->rexxSelf, false, putInBag);
done_out:
return result;
}
/**
* Creates a Rexx dialog control from within a dialog control method, using a
* window handle of another control.
*
* In the Windows API for dialog controls, it is often possible to obtain the
* handle of a "buddy" or "companion" control of a control. For instance, with
* the date time picker control, it is possible to obtain the window handle of
* the drop down month calendar control. The 'originating' control is the date
* time picker and the companion control is the month calendar.
*
* In these cases, this function will convert the window handle to a Rexx dialog
* control object.
*
* @param c The method context we are operating in.
* @param pcdc The CSelf struct of the originating control.
* @param hCtrl The window handle of the dialog control. This can be null,
* in which case .nil is returned.
* @param type The type of the dialog control.
* @param putInBag Whether the new Rexx dialog control object should be
* protected from garbage collection by being placed in the
* Rexx dialog object's control bag.
*
* @return A Rexx dialog control object that represents the underlying Windows
* dialog control, or .nil if the object is not instantiated.
*/
RexxObjectPtr createControlFromHwnd(RexxMethodContext *c, pCDialogControl pcdc, HWND hCtrl,
oodControl_t type, bool putInBag)
{
RexxObjectPtr result = TheNilObj;
if ( hCtrl == NULL )
{
goto done_out;
}
bool isCategoryDlg = (c->IsOfType(pcdc->oDlg, "CATEGORYDIALOG") ? true : false);
uint32_t id = (uint32_t)GetDlgCtrlID(hCtrl);
result = createRexxControl(c, hCtrl, pcdc->hDlg, id, type, pcdc->oDlg, isCategoryDlg, putInBag);
done_out:
return result;
}
/**
* Methods for the .DialogControl class.
*/
#define DIALOGCONTROL_CLASS "DialogControl"
/**
* Validates that the CSelf pointer for a DialogControl object is not null.
*/
inline pCDialogControl validateDCCSelf(RexxMethodContext *c, void *pcdc)
{
if ( pcdc == NULL )
{
baseClassIntializationException(c);
}
return (pCDialogControl)pcdc;
}
/**
* Free subclass data for the KeyEventProc subclass.
*
* @assumes The caller passed in a proper SUBCLASSDATA pointer, i.e., that
* pData->pData points to a KEYEVENTDATA struct.
*/
void freeKeyEventData(SUBCLASSDATA *p)
{
if ( p != NULL )
{
if ( p->pData != NULL )
{
KEYEVENTDATA *pKeyEvent = (KEYEVENTDATA *)p->pData;
if ( pKeyEvent->method != NULL )
{
free(pKeyEvent->method);
}
LocalFree(pKeyEvent);
}
LocalFree(p);
}
}
/**
* Subclass procedure for any dialog control. Reports key press events to
* ooDialog for those key presses connected to an ooDialog method by the user.
*
* All messages are passed on unchanged to the control.
*
* processKeyPress() is used to actually decipher the key press data and set
* up the ooDialog method invocation. That function documents what is sent on
* to the ooDialog method.
*/
LRESULT CALLBACK KeyPressSubclassProc(HWND hwnd, UINT msg, WPARAM wParam,
LPARAM lParam, UINT_PTR id, DWORD_PTR dwData)
{
SUBCLASSDATA *pSubclassData = (SUBCLASSDATA *)dwData;
if ( ! pSubclassData )
{
return DefSubclassProc(hwnd, msg, wParam, lParam);
}
KEYPRESSDATA *pKeyData = (KEYPRESSDATA *)pSubclassData->pData;
switch ( msg )
{
case WM_GETDLGCODE:
/* Don't do anything for now. This message has some interesting
* uses, perhaps a future enhancement.
*/
break;
case WM_SYSKEYDOWN:
/* Sent when the alt key is down. We need both WM_SYSKEYDOWN and
* WM_KEYDOWN to catch everything that a keyboard hook catches.
*/
if ( pKeyData->key[wParam] && !(lParam & KEY_RELEASED) && !(lParam & KEY_WASDOWN) )
{
processKeyPress(pSubclassData, wParam, lParam);
}
break;
case WM_KEYDOWN:
/* WM_KEYDOWN will never have KEY_RELEASED set. */
if ( pKeyData->key[wParam] && !(lParam & KEY_WASDOWN) )
{
processKeyPress(pSubclassData, wParam, lParam);
}
break;
case WM_NCDESTROY:
/* The window is being destroyed, remove the subclass, clean up
* memory.
*/
RemoveWindowSubclass(hwnd, KeyPressSubclassProc, id);
freeKeyPressData(pSubclassData);
break;
}
return DefSubclassProc(hwnd, msg, wParam, lParam);
}
/**
* Convenience function to remove the key press subclass procedure and free the
* associated memory.
*
* If for some reason remvoing the subclass fails, we can not free the memory
* because the subclass procedure may (will) still acess it.
*/
static BOOL removeKeyPressSubclass(SUBCLASSDATA *pData, HWND hDlg, INT id)
{
BOOL success = SendMessage(hDlg, WM_USER_SUBCLASS_REMOVE, (WPARAM)&KeyPressSubclassProc, (LPARAM)id) != 0;
if ( success )
{
freeKeyPressData(pData);
}
return success;
}
static keyPressErr_t connectKeyPressSubclass(RexxMethodContext *c, CSTRING methodName, CSTRING keys, CSTRING filter,
pCDialogControl pcdc)
{
keyPressErr_t result = nameErr;
if ( ! requiredComCtl32Version(c, c->GetMessageName(), COMCTL32_6_0) )
{
goto done_out;
}
if ( *methodName == '\0' )
{
c->RaiseException1(Rexx_Error_Invalid_argument_null, TheOneObj);
goto done_out;
}
if ( *keys == '\0' )
{
c->RaiseException1(Rexx_Error_Invalid_argument_null, TheTwoObj);
goto done_out;
}
SUBCLASSDATA *pSubclassData = NULL;
BOOL success = GetWindowSubclass(pcdc->hCtrl, KeyPressSubclassProc, pcdc->id, (DWORD_PTR *)&pSubclassData);
// If pSubclassData is null, the subclass is not installed. The data block needs to
// be allocated and then install the subclass. Otherwise, just update the
// data block.
if ( pSubclassData == NULL )
{
pSubclassData = (SUBCLASSDATA *)LocalAlloc(LPTR, sizeof(SUBCLASSDATA));
if ( pSubclassData == NULL )
{
result = memoryErr;
goto done_out;
}
KEYPRESSDATA *pKeyPressData = (KEYPRESSDATA *)LocalAlloc(LPTR, sizeof(KEYPRESSDATA));
if ( pKeyPressData == NULL )
{
LocalFree(pSubclassData);
result = memoryErr;
goto done_out;
}
pSubclassData->rexxControl = pcdc->rexxSelf;
pSubclassData->hCtrl = pcdc->hCtrl;
pSubclassData->uID = pcdc->id;
pSubclassData->pData = pKeyPressData;
// The subclass is not installed, abort and clean up if there is any
// error in setKeyPressData()
result = setKeyPressData(pKeyPressData, methodName, keys, filter);
if ( result == noErr )
{
if ( SendMessage(pcdc->hDlg, WM_USER_SUBCLASS, (WPARAM)KeyPressSubclassProc, (LPARAM)pSubclassData) == 0 )
{
// Subclassing failed, we need to clean up memory, or else it
// will leak.
freeKeyPressData(pSubclassData);
result = winAPIErr;
}
}
else
{
freeKeyPressData(pSubclassData);
}
}
else
{
// The subclass is installed, it has a valid key press data table. If
// there are any errors, the error is reported, but the existing data
// table is left alone.
if ( success )
{
result = setKeyPressData((KEYPRESSDATA *)pSubclassData->pData, methodName, keys, filter);
}
else
{
result = winAPIErr;
}
}
done_out:
return result;
}
/**
* Tests if the key code is considered an extended key for the purposes of
* connectKeyEvent().
*
* Note that PageUp is VK_PRIOR and PageDown is VK_NEXT.
*
*
* @param wParam
*
* @return bool
*/
static inline bool isExtendedKeyEvent(WPARAM wParam)
{
return (wParam >= VK_PRIOR && wParam <= VK_DOWN) || wParam == VK_INSERT || wParam == VK_DELETE;
}
/**
* Subclass procedure for any dialog control that uses connectKeyEvent().
*
* Some what experimental for now. To begin with, this is kept minimal to allow
* for future expansion.
*
* When connected, (which would be the only time this subclass procedure is in
* use,) all WM_CHAR messages are sent to the Rexx method. The method can reply
* false to NOT send the message on to the subclassed control, reply true to
* pass the message on unchanged, and reply with a virtual key code which
* replaces the actual virtual key code.
*
* In addition, the extended key codes HOME END INS DEL PAGEUP PAGEDOWN and the
* arrow keys are sent to the Rexx method. For these, for now, the user can
* reply false to suppress the message being sent to the subclassed control.
* And true to send it on to the subclassed control, but actually, anything
* other than false is treated as true.
*
* @remarks We know, or think we know, that this function is running in the
* thread of the dialog message loop. So, for a thread context, we
* just grab it from the pCPlainBaseDialg.
*/
LRESULT CALLBACK KeyEventProc(HWND hwnd, UINT msg, WPARAM wParam, LPARAM lParam, UINT_PTR id, DWORD_PTR dwData)
{
SUBCLASSDATA *pSubclassData = (SUBCLASSDATA *)dwData;
if ( ! pSubclassData )
{
return DefSubclassProc(hwnd, msg, wParam, lParam);
}
KEYEVENTDATA *pKeyEvent = (KEYEVENTDATA *)pSubclassData->pData;
switch ( msg )
{
case WM_KEYDOWN:
if ( lParam & KEY_ISEXTENDED && isExtendedKeyEvent(wParam) )
{
RexxThreadContext *c = pSubclassData->dlgProcContext;
RexxArrayObject args = getKeyEventRexxArgs(c, wParam, true, pSubclassData->rexxControl);
RexxObjectPtr reply = c->SendMessage(pSubclassData->rexxDialog, pKeyEvent->method, args);
if ( ! checkForCondition(c, false) && reply == TheFalseObj )
{
return TRUE;
}
}
break;
case WM_CHAR:
{
RexxThreadContext *c = pSubclassData->dlgProcContext;
RexxArrayObject args = getKeyEventRexxArgs(c, wParam, false, pSubclassData->rexxControl);
RexxObjectPtr reply = c->SendMessage(pSubclassData->rexxDialog, pKeyEvent->method, args);
if ( ! checkForCondition(c, false) && reply != NULLOBJECT )
{
if ( reply == TheFalseObj )
{
return TRUE;
}
else if ( reply != TheTrueObj )
{
// TheTrueObj just means don't do anything, so DefSubClassProc() handles it.
uint32_t chr;
if ( c->UnsignedInt32(reply, &chr) )
{
return DefSubclassProc(hwnd, msg, (WPARAM)chr, lParam);
}
}
}
break;
}
case WM_NCDESTROY:
/* The window is being destroyed, remove the subclass, clean up
* memory.
*/
RemoveWindowSubclass(hwnd, KeyEventProc, id);
freeKeyEventData(pSubclassData);
break;
}
return DefSubclassProc(hwnd, msg, wParam, lParam);
}
RexxMethod1(RexxObjectPtr, dlgctrl_init_cls, OSELF, self)
{
if ( isOfClassType(context, self, DIALOGCONTROL_CLASS) )
{
TheDialogControlClass = (RexxClassObject)self;
context->RequestGlobalReference(TheDialogControlClass);
}
return NULLOBJECT;
}
/** DialogControl::new()
*
*
*/
RexxMethod3(RexxObjectPtr, dlgctrl_new_cls, OPTIONAL_RexxObjectPtr, args, OSELF, self, SUPER, superClass)
{
RexxMethodContext *c = context;
RexxObjectPtr control = TheNilObj;
if ( argumentOmitted(1) || ! c->IsPointer(args) )
{
goto done_out;
}
// Forwarding this message to the super class will also invoke the init()
// method of the control instance object.
control = c->ForwardMessage(NULLOBJECT, NULL, superClass, NULL);
if ( control == NULLOBJECT )
{
control = TheNilObj;
}
done_out:
return control;
}
/** DialogControl::init()
*
* The base init() for all dialog control objects.
*
* Initializes the WindowBase and sets the 3 attributes: id, hDlg, and oDlg.
* These attributes are 'get' only attributes and can not be changed.
*/
RexxMethod2(uint32_t, dlgctrl_init, OPTIONAL_POINTER, args, OSELF, self)
{
RexxMethodContext *c = context;
uint32_t result = 1;
if ( argumentOmitted(1) || args == NULL )
{
goto done_out;
}
// Set up for the DialogControl CSelf.
RexxBufferObject cdcBuf = c->NewBuffer(sizeof(CDialogControl));
if ( cdcBuf == NULLOBJECT )
{
goto done_out;
}
// Do the WindowBase initialization.
pCWindowBase wbCSelf;
PNEWCONTROLPARAMS params = (PNEWCONTROLPARAMS)args;
if ( ! initWindowBase(context, params->hwnd, self, &wbCSelf) )
{
goto done_out;
}
if ( ! initWindowExtensions(context, self, params->hwnd, wbCSelf, NULL) )
{
goto done_out;
}
pCDialogControl cdcCSelf = (pCDialogControl)c->BufferData(cdcBuf);
memset(cdcCSelf, 0, sizeof(CDialogControl));
cdcCSelf->controlType = params->controlType;
cdcCSelf->lastItem = -1;
cdcCSelf->wndBase = wbCSelf;
cdcCSelf->rexxSelf = self;
cdcCSelf->hCtrl = params->hwnd;
cdcCSelf->id = params->id;
cdcCSelf->hDlg = params->hwndDlg;
cdcCSelf->oDlg = params->parentDlg;
cdcCSelf->isInCategoryDlg = params->isCatDlg;
context->SetObjectVariable("CSELF", cdcBuf);
context->SetObjectVariable("ID", c->UnsignedInt32(params->id));
context->SetObjectVariable("HDLG", pointer2string(context, params->hwndDlg));
context->SetObjectVariable("ODLG", params->parentDlg);
result = 0;
done_out:
return result;
}
/** DialogControl::unInit()
*
* Release the global reference for CWindowBase::rexxHwnd.
*
*/
RexxMethod1(RexxObjectPtr, dlgctrl_unInit, CSELF, pCSelf)
{
if ( pCSelf != NULLOBJECT )
{
pCWindowBase pcwb = ((pCDialogControl)pCSelf)->wndBase;
if ( pcwb->rexxHwnd != TheZeroObj )
{
context->ReleaseGlobalReference(pcwb->rexxHwnd);
pcwb->rexxHwnd = TheZeroObj;
}
} return NULLOBJECT;
}
RexxMethod1(RexxObjectPtr, dlgctrl_assignFocus, CSELF, pCSelf)
{
SendMessage(((pCDialogControl)pCSelf)->hDlg, WM_NEXTDLGCTL, (WPARAM)((pCDialogControl)pCSelf)->hCtrl, TRUE);
return TheZeroObj;
}
/** DialogControl::connectKeyEvent()
*
* Experimental! Connects a key event to a method in the Rexx dialog.
*
*
* @return True for success, false for error
*
*
*/
RexxMethod2(RexxObjectPtr, dlgctrl_connectKeyEvent, CSTRING, methodName, CSELF, pCSelf)
{
oodResetSysErrCode(context->threadContext);
RexxObjectPtr result = TheFalseObj;
if ( ! requiredComCtl32Version(context, "connectKeyEvent", COMCTL32_6_0) )
{
goto done_out;
}
if ( *methodName == '\0' )
{
context->RaiseException1(Rexx_Error_Invalid_argument_null, TheOneObj);
goto done_out;
}
pCDialogControl pcdc = (pCDialogControl)pCSelf;
SUBCLASSDATA *pData = NULL;
BOOL success = GetWindowSubclass(pcdc->hCtrl, KeyEventProc, pcdc->id, (DWORD_PTR *)&pData);
// Nothing fancy yet, we could allow removing the subclass.
if ( pData != NULL )
{
// The subclass is already installed, we call this an error.
oodSetSysErrCode(context->threadContext, ERROR_NOT_SUPPORTED);
goto done_out;
}
pData = (SUBCLASSDATA *)LocalAlloc(LPTR, sizeof(SUBCLASSDATA));
if ( pData == NULL )
{
outOfMemoryException(context->threadContext);
goto done_out;
}
KEYEVENTDATA *pKeyEventData = (KEYEVENTDATA *)LocalAlloc(LPTR, sizeof(KEYEVENTDATA));
if ( pKeyEventData == NULL )
{
LocalFree(pData);
outOfMemoryException(context->threadContext);
goto done_out;
}
pKeyEventData->method = (char *)malloc(strlen(methodName) + 1);
if ( pKeyEventData->method == NULL )
{
freeKeyEventData(pData);
outOfMemoryException(context->threadContext);
goto done_out;
}
strcpy(pKeyEventData->method, methodName);
pData->rexxControl = pcdc->rexxSelf;
pData->hCtrl = pcdc->hCtrl;
pData->uID = pcdc->id;
pData->pData = pKeyEventData;
if ( SendMessage(pcdc->hDlg, WM_USER_SUBCLASS, (WPARAM)KeyEventProc, (LPARAM)pData) == 0 )
{
// The subclass was not installed, free memeory, set error code.
freeKeyEventData(pData);
oodSetSysErrCode(context->threadContext, ERROR_SIGNAL_REFUSED);
goto done_out;
}
result = TheTrueObj;
done_out:
return result;
}
RexxMethod4(int32_t, dlgctrl_connectKeyPress, CSTRING, methodName, CSTRING, keys, OPTIONAL_CSTRING, filter,
CSELF, pCSelf)
{
keyPressErr_t result = connectKeyPressSubclass(context, methodName, keys, filter, (pCDialogControl)pCSelf);
if ( result == memoryErr )
{
outOfMemoryException(context->threadContext);
}
return -(int32_t)result;
}
RexxMethod2(int32_t, dlgctrl_connectFKeyPress, CSTRING, methodName, CSELF, pCSelf)
{
keyPressErr_t result = connectKeyPressSubclass(context, methodName, "FKEYS", NULL, (pCDialogControl)pCSelf);
if ( result == memoryErr )
{
outOfMemoryException(context->threadContext);
}
return -(int32_t)result;
}
RexxMethod2(int32_t, dlgctrl_disconnectKeyPress, OPTIONAL_CSTRING, methodName, CSELF, pCSelf)
{
char *tmpName = NULL;
keyPressErr_t result = winAPIErr;
if ( ! requiredComCtl32Version(context, context->GetMessageName(), COMCTL32_6_0) )
{
goto done_out;
}
pCDialogControl pcdc = (pCDialogControl)pCSelf;
SUBCLASSDATA *pSubclassData = NULL;
GetWindowSubclass(pcdc->hCtrl, KeyPressSubclassProc, pcdc->id, (DWORD_PTR *)&pSubclassData);
// If pSubclassData is null, the subclass has already been removed, (or
// never existed.)
if ( pSubclassData == NULL )
{
result = nameErr;
goto done_out;
}
// If no method name, remove the whole thing.
if ( argumentOmitted(1) )
{
result = (removeKeyPressSubclass(pSubclassData, pcdc->hDlg, pcdc->id) ? noErr : winAPIErr);
goto done_out;
}
// Have a method name, just remove that method from the mapping.
tmpName = strdupupr(methodName);
if ( tmpName == NULL )
{
result = memoryErr;
outOfMemoryException(context->threadContext);
goto done_out;
}
KEYPRESSDATA *pKeyPressData = (KEYPRESSDATA *)pSubclassData->pData;
uint32_t index = seekKeyPressMethod(pKeyPressData, tmpName);
if ( index == 0 )
{
result = nameErr;
goto done_out;
}
// If only 1 method left, remove the subclass entirely. Otherwise,
// remove the subclass, fix up the subclass data block, then reinstall
// the subclass.
BOOL success = FALSE;
if ( pKeyPressData->usedMethods == 1 )
{
success = removeKeyPressSubclass(pSubclassData, pcdc->hDlg, pcdc->id);
}
else
{
if ( SendMessage(pcdc->hDlg, WM_USER_SUBCLASS_REMOVE, (WPARAM)KeyPressSubclassProc, (LPARAM)pcdc->id) )
{
removeKeyPressMethod(pKeyPressData, index);
success = (BOOL)SendMessage(pcdc->hDlg, WM_USER_SUBCLASS, (WPARAM)KeyPressSubclassProc, (LPARAM)pSubclassData);
// If not success, then the subclass procedure is no longer
// installed, (even though it was originally,) and the memory
// will never be cleaned up, so clean it up now.
if ( ! success )
{
freeKeyPressData(pSubclassData);
}
}
}
result = (success ? noErr : winAPIErr);
done_out:
return -(int32_t)result;
}
RexxMethod2(logical_t, dlgctrl_hasKeyPressConnection, OPTIONAL_CSTRING, methodName, CSELF, pCSelf)
{
if ( ComCtl32Version < COMCTL32_6_0 )
{
return FALSE;
}
pCDialogControl pcdc = (pCDialogControl)pCSelf;
SUBCLASSDATA *pData = NULL;
if ( ! GetWindowSubclass(pcdc->hCtrl, KeyPressSubclassProc, pcdc->id, (DWORD_PTR *)&pData) )
{
return FALSE;
}
if ( pData == NULL )
{
return FALSE;
}
if ( argumentOmitted(1) )
{
return TRUE;
}
char *tmpName = strdupupr(methodName);
if ( tmpName == NULL )
{
outOfMemoryException(context->threadContext);
return FALSE;
}
BOOL exists = (seekKeyPressMethod((KEYPRESSDATA *)pData->pData, tmpName) > 0);
free(tmpName);
return exists;
}
/** DialogControl::tabstop()
* DialogControl::group()
*/
RexxMethod3(RexxObjectPtr, dlgctrl_tabGroup, OPTIONAL_logical_t, addStyle, NAME, method, CSELF, pCSelf)
{
oodResetSysErrCode(context->threadContext);
pCDialogControl pcdc = (pCDialogControl)pCSelf;
if ( argumentOmitted(1) )
{
addStyle = TRUE;
}
uint32_t style = GetWindowLong(pcdc->hCtrl, GWL_STYLE);
if ( *method == 'T' )
{
style = (addStyle ? (style | WS_TABSTOP) : (style & ~WS_TABSTOP));
}
else
{
style = (addStyle ? (style | WS_GROUP) : (style & ~WS_GROUP));
}
return setWindowStyle(context, pcdc->hCtrl, style);
}
/** DialogControl::clearRect()
*
* Clears the rectangle specified in this control's client area.
*
* @param The coordinates of the rectangle.
* Form 1: A .Rect object.
* Form 2: A .Point object and a .Point object.
* Form 3: x1, y1, y1, y2
*
* @return 0 on success, 1 on error.
*
* @note Sets the .SystemErrorCode.
*/
RexxMethod2(RexxObjectPtr, dlgctrl_clearRect, ARGLIST, args, CSELF, pCSelf)
{
oodResetSysErrCode(context->threadContext);
RECT r = {0};
size_t arraySize;
size_t argsUsed;
if ( ! getRectFromArglist(context, args, &r, true, 1, 4, &arraySize, &argsUsed) )
{
return TheOneObj;
}
if ( argsUsed < arraySize )
{
return tooManyArgsException(context->threadContext, argsUsed);
}
return clearRect(context, getDChCtrl(pCSelf), &r);
}
/** DialogControl::redrawRect()
*
* Immediately redraws the specified rectangle in this control.
*
* @param The coordinates of the rectangle.
* Form 1: A .Rect object.
* Form 2: A .Point object and a .Point object.
* Form 3: x1, y1, y1, y2
*
* @param erase [OPITONAL] Whether the background should be erased first.
* The default is false.
*
* @return 0 on success, 1 on error.
*
* @note Sets the .SystemErrorCode.
*/
RexxMethod2(RexxObjectPtr, dlgctrl_redrawRect, ARGLIST, args, CSELF, pCSelf)
{
oodResetSysErrCode(context->threadContext);
bool doErase = false;
RECT r = {0};
size_t arraySize;
size_t argsUsed;
if ( ! getRectFromArglist(context, args, &r, true, 1, 5, &arraySize, &argsUsed) )
{
return TheOneObj;
}
if ( arraySize > argsUsed + 1 )
{
return tooManyArgsException(context->threadContext, argsUsed + 1);
}
else if ( arraySize == (argsUsed + 1) )
{
// The object at argsUsed + 1 has to exist, otherwise arraySize would
// equal argsUsed.
RexxObjectPtr obj = context->ArrayAt(args, argsUsed + 1);
logical_t erase;
if ( ! context->Logical(obj, &erase) )
{
return notBooleanException(context->threadContext, argsUsed + 2, obj);
}
doErase = erase ? true : false;
}
return redrawRect(context, getDChCtrl(pCSelf), &r, doErase, true);
}
/** DialogControl::textSize()
*
* Computes the width and height in pixels of the specified string of text when
* displayed by this control.
*
* @param text The text whose size is needed.
* @param size [IN/OUT] A .Size object, the calculated size is returned here.
*
* @return True on success, otherwise false. It is unlikely that this
* function would fail.
*
* @note Sets the .SystemErrorCode.
*/
RexxMethod3(RexxObjectPtr, dlgctrl_textSize, CSTRING, text, RexxObjectPtr, _size, CSELF, pCSelf)
{
oodResetSysErrCode(context->threadContext);
RexxObjectPtr result = TheFalseObj;
PSIZE size = rxGetSize(context, _size, 2);
if ( size == NULL )
{
return result;
}
HWND hCtrl = getDChCtrl(pCSelf);
HDC hdc = GetDC(hCtrl);
if ( hdc == NULL )
{
oodSetSysErrCode(context->threadContext);
return result;
}
HFONT hFont = (HFONT)SendMessage(hCtrl, WM_GETFONT, 0, 0);
if ( hFont == NULL )
{
// Font has not been set.
hFont = (HFONT)GetStockObject(DEFAULT_GUI_FONT);
}
HFONT hOldFont = (HFONT)SelectObject(hdc, hFont);
if ( GetTextExtentPoint32(hdc, text, (int)strlen(text), size) != 0 )
{
result = TheTrueObj;
}
// Clean up.
SelectObject(hdc, hOldFont);
ReleaseDC(hCtrl, hdc);
return result;
}
/** DialogControl::getTextSizeDlg()
*
* Gets the size (width and height) in dialog units for any given string.
*
* Since dialog units only have meaning for a specific dialog, normally the
* dialog units are calculated using the font of the dialog. Optionally, this
* method will calculate the dialog units using a specified font.
*
* @param text The string whose size is needed.
*
* @param fontName Optional. If specified, use this font to calculate the
* size. The default is to use the font of the owner
* dialog of the dialog control. This would be the normal
* usage.
*
* @param fontSize Optional. If specified, use this font size with
* fontName to calculate the size. The default if omitted
* is 8. This arg is ignored if fontName is omitted.
*
* @param hwndFontSrc Optional. Use this window's font to calculate the size.
* This arg is always ignored if fontName is specified.
*
* @return A .Size object representing the area (width and height,) in dialog
* units, needed for the specified string.
*
* @note This method, mapped to a dialog control object, does not really make
* sense. It, and its convoluted optional arguments, are maintained
* only for backward compatibility. Its use should be strongly
* discouraged.
*/
RexxMethod5(RexxObjectPtr, dlgctrl_getTextSizeDlg, CSTRING, text, OPTIONAL_CSTRING, fontName,
OPTIONAL_uint32_t, fontSize, OPTIONAL_POINTERSTRING, hwndFontSrc, CSELF, pCSelf)
{
HWND hwndSrc = NULL;
if ( argumentExists(2) )
{
if ( argumentOmitted(3) )
{
fontSize = DEFAULT_FONTSIZE;
}
}
else if ( argumentExists(4) )
{
hwndSrc = (HWND)hwndFontSrc;
if ( hwndFontSrc == NULL )
{
nullObjectException(context->threadContext, "window handle", 4);
return NULLOBJECT;
}
}
SIZE textSize = {0};
if ( getTextSize(context, text, fontName, fontSize, hwndSrc, getDCownerDlg(pCSelf), &textSize) )
{
return rxNewSize(context, textSize.cx, textSize.cy);
}
return NULLOBJECT;
}
/** DialogControl::captureMouse
*
* Sets the mouse capture to this dialog control. captureMouse() captures
* mouse input either when the mouse is over the control, or when the mouse
* button was pressed while the mouse was over the control and the button is
* still down. Only one window at a time can capture the mouse.
*
* If the mouse cursor is over a window created by another thread, the system
* will direct mouse input to the specified window only if a mouse button is
* down.
*
* @return The window handle of the window that previously had captured the
* mouse, or the null handle if there was no such window.
*/
RexxMethod1(RexxObjectPtr, dlgctrl_captureMouse, CSELF, pCSelf)
{
HWND oldCapture = (HWND)SendMessage(getDChDlg(pCSelf), WM_USER_GETSETCAPTURE, 1, (LPARAM)getDChCtrl(pCSelf));
return pointer2string(context, oldCapture);
}
/** DialogControl::setColor()
* DialogControl::setSysColor
*/
RexxMethod4(logical_t, dlgctrl_setColor, int32_t, bkColor, OPTIONAL_int32_t, fgColor, NAME, method, CSELF, pCSelf)
{
pCDialogControl pcdc = validateDCCSelf(context, pCSelf);
if ( pcdc == NULL )
{
return 0;
}
return oodColorTable(context, dlgToCSelf(context, pcdc->oDlg), pcdc->id, bkColor,
argumentOmitted(2) ? -1 : fgColor, method[3] == 'S');
}
/** DialogControl::data()
*
* Gets the "data" of the dialog control.
*
* @return The 'data' of the control.
*
* @remarks The original ooDialog code used the abstraction that there were
* only two objects involved. The ooDialog object and the underlying
* Windows dialog. The dialog controls were considered to be the
* 'data' of the underlying Windows dialog. In this abstraction, an
* edit control was part of the 'data' of the dialog and its 'data'
* was the edit control's text. For a check box the 'data' is
* checked or not, etc..
*
*/
RexxMethod1(RexxObjectPtr, dlgctrl_data, CSELF, pCSelf)
{
pCDialogControl pcdc = (pCDialogControl)pCSelf;
return getControlData(context, dlgToCSelf(context, pcdc->oDlg), pcdc->id, pcdc->hDlg, pcdc->controlType);
}
/** DialogControl::"data="
*
* Sets the "data" of the dialog control.
*
* @param data What to set the 'data' of the dialog control to. Its meaning
* and format are dependent on the type of control.
*
* @return No return for "=" methods.
*
* @remarks See the remarks in dlgctrl_data above.
*/
RexxMethod2(RexxObjectPtr, dlgctrl_dataEquals, CSTRING, data, CSELF, pCSelf)
{
pCDialogControl pcdc = (pCDialogControl)pCSelf;
setControlData(context, dlgToCSelf(context, pcdc->oDlg), pcdc->id, data, pcdc->hDlg, pcdc->controlType);
return NULLOBJECT;
}