1 | /* $Id: win32wmdichild.cpp,v 1.1 1999-08-31 10:36:23 sandervl Exp $ */
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2 | /*
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3 | * Win32 MDI Child Window Class for OS/2
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4 | *
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5 | * Copyright 1998-1999 Sander van Leeuwen (sandervl@xs4all.nl)
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6 | *
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7 | * Based on Wine (windows\mdi.c) (990815)
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8 | *
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9 | * Copyright 1994, Bob Amstadt
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10 | * 1995,1996 Alex Korobka
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11 | *
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12 | * Project Odin Software License can be found in LICENSE.TXT
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13 | *
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14 | */
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15 | #include <os2win.h>
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16 | #include <win.h>
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17 | #include <stdlib.h>
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18 | #include <stdio.h>
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19 | #include <string.h>
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20 | #include <stdarg.h>
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21 | #include <assert.h>
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22 | #include <misc.h>
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23 | #include <heapstring.h>
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24 | #include <win32wnd.h>
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25 | #include <win32wmdiclient.h>
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26 | #include <win32wmdichild.h>
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27 | #include <spy.h>
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28 | #include "wndmsg.h"
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29 | #include "hooks.h"
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30 | #include <oslibwin.h>
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31 | #include <oslibutil.h>
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32 | #include <oslibgdi.h>
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33 | #include <oslibres.h>
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34 | #include "oslibdos.h"
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35 | #include <winres.h>
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36 | #include "syscolor.h"
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37 | #include "win32wndhandle.h"
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38 | #include "heapshared.h"
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39 |
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40 |
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41 | //******************************************************************************
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42 | //******************************************************************************
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43 | Win32MDIChildWindow::Win32MDIChildWindow(CREATESTRUCTA *lpCreateStructA, ATOM classAtom, BOOL isUnicode)
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44 | : Win32BaseWindow(lpCreateStructA, classAtom, isUnicode)
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45 | {
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46 | }
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47 | //******************************************************************************
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48 | //******************************************************************************
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49 | Win32MDIChildWindow::~Win32MDIChildWindow()
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50 | {
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51 | }
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52 | /**********************************************************************
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53 | * MDICreateChild
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54 | */
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55 | HWND Win32MDIChildWindow::createChild(Win32MDIClientWindow *client, LPMDICREATESTRUCTA cs )
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56 | {
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57 | POINT pos[2];
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58 | DWORD style = cs->style | (WS_CHILD | WS_CLIPSIBLINGS);
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59 | HWND hwnd;
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60 | WORD wIDmenu = client->getFirstChildId() + client->getNrOfChildren();
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61 | char lpstrDef[]="junk!";
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62 | Win32MDIChildWindow *maximizedChild, *newchild;
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63 |
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64 | dprintf(("Win32MDIChildWindow::createChild %i,%i - dim %i,%i, style %08x\n",
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65 | cs->x, cs->y, cs->cx, cs->cy, (unsigned)cs->style));
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66 |
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67 | /* calculate placement */
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68 | calcDefaultChildPos(client, client->incTotalCreated(), pos, 0);
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69 |
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70 | if (cs->cx == CW_USEDEFAULT || !cs->cx) cs->cx = pos[1].x;
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71 | if (cs->cy == CW_USEDEFAULT || !cs->cy) cs->cy = pos[1].y;
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72 |
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73 | if( cs->x == CW_USEDEFAULT )
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74 | {
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75 | cs->x = pos[0].x;
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76 | cs->y = pos[0].y;
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77 | }
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78 |
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79 | /* restore current maximized child */
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80 | if( style & WS_VISIBLE && client->getMaximizedChild() )
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81 | {
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82 | if( style & WS_MAXIMIZE )
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83 | client->SendMessageA(WM_SETREDRAW, FALSE, 0L );
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84 |
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85 | maximizedChild = client->getMaximizedChild();
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86 |
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87 | maximizedChild->ShowWindow( SW_SHOWNOACTIVATE );
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88 |
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89 | if( style & WS_MAXIMIZE )
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90 | client->SendMessageA(WM_SETREDRAW, TRUE, 0L );
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91 | }
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92 |
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93 | /* this menu is needed to set a check mark in MDI_ChildActivate */
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94 | AppendMenuA(client->getMDIMenu(), MF_STRING ,wIDmenu, lpstrDef );
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95 |
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96 | client->incNrActiveChildren();
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97 |
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98 | /* fix window style */
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99 | if( !(client->getStyle() & MDIS_ALLCHILDSTYLES) )
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100 | {
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101 | style &= (WS_CHILD | WS_CLIPSIBLINGS | WS_MINIMIZE | WS_MAXIMIZE |
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102 | WS_CLIPCHILDREN | WS_DISABLED | WS_VSCROLL | WS_HSCROLL );
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103 | style |= (WS_VISIBLE | WS_OVERLAPPEDWINDOW);
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104 | }
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105 |
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106 | hwnd = ::CreateWindowA(cs->szClass, cs->szTitle, style,
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107 | cs->x, cs->y, cs->cx, cs->cy, client->getWindowHandle(),
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108 | (HMENU)wIDmenu, cs->hOwner, cs );
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109 |
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110 | /* MDI windows are WS_CHILD so they won't be activated by CreateWindow */
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111 | newchild = (Win32MDIChildWindow *)GetWindowFromHandle(hwnd);
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112 | if (hwnd && newchild)
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113 | {
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114 | newchild->menuModifyItem();
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115 |
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116 | if( newchild->getStyle() & WS_MINIMIZE && client->getActiveChild()) {
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117 | newchild->ShowWindow(SW_SHOWMINNOACTIVE);
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118 | }
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119 | else
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120 | {
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121 | /* WS_VISIBLE is clear if a) the MDI client has
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122 | * MDIS_ALLCHILDSTYLES style and 2) the flag is cleared in the
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123 | * MDICreateStruct. If so the created window is not shown nor
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124 | * activated.
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125 | */
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126 | int showflag = newchild->getStyle() & WS_VISIBLE;
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127 | /* clear visible flag, otherwise SetWindoPos32 ignores
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128 | * the SWP_SHOWWINDOW command.
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129 | */
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130 | newchild->SetWindowLongA(GWL_STYLE, showflag & ~WS_VISIBLE);
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131 | if(showflag){
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132 | newchild->SetWindowPos(0, 0, 0, 0, 0, SWP_SHOWWINDOW | SWP_NOSIZE | SWP_NOMOVE );
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133 |
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134 | /* Set maximized state here in case hwnd didn't receive WM_SIZE
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135 | * during CreateWindow - bad!
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136 | */
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137 |
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138 | if((newchild->getStyle() & WS_MAXIMIZE) && !client->getMaximizedChild() )
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139 | {
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140 | client->setMaximizedChild(newchild);
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141 | #if 0
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142 | MDI_AugmentFrameMenu( ci, w->parent, hwnd );
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143 | MDI_UpdateFrameText( w->parent, ci->self, MDI_REPAINTFRAME, NULL );
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144 | #endif
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145 | }
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146 | }
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147 | else
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148 | /* needed, harmless ? */
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149 | newchild->SetWindowPos(0, 0, 0, 0, 0, SWP_NOACTIVATE | SWP_NOSIZE | SWP_NOMOVE );
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150 |
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151 | }
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152 | }
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153 | else
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154 | {
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155 | client->decNrActiveChildren();
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156 | DeleteMenu(client->getMDIMenu(), wIDmenu,MF_BYCOMMAND);
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157 |
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158 | maximizedChild = client->getMaximizedChild();
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159 | if( maximizedChild && maximizedChild->IsWindow() )
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160 | maximizedChild->ShowWindow(SW_SHOWMAXIMIZED);
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161 | }
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162 | return hwnd;
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163 | }
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164 | /**********************************************************************
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165 | * MDI_MenuModifyItem
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166 | */
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167 | BOOL Win32MDIChildWindow::menuModifyItem()
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168 | {
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169 | Win32MDIClientWindow *client = (Win32MDIClientWindow *)getParent();
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170 | char buffer[128];
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171 | UINT n = sprintf(buffer, "%d ", getWindowId() - client->getFirstChildId() + 1);
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172 | BOOL bRet = 0;
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173 |
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174 | if( !client->getMDIMenu() )
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175 | {
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176 | return FALSE;
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177 | }
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178 |
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179 | if (getWindowNameA()) lstrcpynA(buffer + n, getWindowNameA(), sizeof(buffer) - n );
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180 |
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181 | n = GetMenuState(client->getMDIMenu(), getWindowId() ,MF_BYCOMMAND);
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182 | bRet = ModifyMenuA(client->getMDIMenu() , getWindowId(),
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183 | MF_BYCOMMAND | MF_STRING, getWindowId(), buffer );
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184 | CheckMenuItem(client->getMDIMenu(), getWindowId() , n & MF_CHECKED);
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185 |
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186 | return bRet;
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187 | }
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188 |
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189 | /**********************************************************************
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190 | * MDI_MenuDeleteItem
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191 | */
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192 | BOOL Win32MDIChildWindow::menuDeleteItem()
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193 | {
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194 | Win32MDIClientWindow *client = (Win32MDIClientWindow *)getParent();
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195 | char buffer[128];
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196 | UINT index = 0,id,n;
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197 | BOOL retvalue;
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198 |
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199 | if( !client->getNrOfChildren() ||
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200 | !client->getMDIMenu())
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201 | {
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202 | return FALSE;
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203 | }
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204 |
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205 | id = getWindowId();
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206 | DeleteMenu(client->getMDIMenu(),id,MF_BYCOMMAND);
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207 |
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208 | /* walk the rest of MDI children to prevent gaps in the id
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209 | * sequence and in the menu child list */
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210 |
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211 | for( index = id+1; index <= client->getNrOfChildren() +
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212 | client->getFirstChildId(); index++ )
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213 | {
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214 | Win32MDIChildWindow *tmpWnd = client->getChildByID(index);
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215 | if( !tmpWnd )
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216 | {
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217 | dprintf(("no window for id=%i\n",index));
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218 | continue;
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219 | }
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220 |
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221 | /* set correct id */
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222 | tmpWnd->setWindowId(tmpWnd->getWindowId()-1);
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223 |
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224 | n = sprintf(buffer, "%d ",index - client->getFirstChildId());
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225 | if (tmpWnd->getWindowNameA())
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226 | lstrcpynA(buffer + n, tmpWnd->getWindowNameA(), sizeof(buffer) - n );
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227 |
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228 | /* change menu */
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229 | ModifyMenuA(client->getMDIMenu(), index ,MF_BYCOMMAND | MF_STRING,
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230 | index - 1 , buffer );
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231 | }
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232 | return TRUE;
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233 | }
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234 | /**********************************************************************
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235 | * MDI_CalcDefaultChildPos
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236 | *
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237 | * It seems that the default height is about 2/3 of the client rect
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238 | */
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239 | void Win32MDIChildWindow::calcDefaultChildPos(Win32MDIClientWindow *client, WORD n, LPPOINT lpPos, INT delta)
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240 | {
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241 | INT nstagger;
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242 | RECT rect = *client->getClientRect();
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243 | INT spacing = GetSystemMetrics(SM_CYCAPTION) +
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244 | GetSystemMetrics(SM_CYFRAME) - 1;
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245 |
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246 | if( rect.bottom - rect.top - delta >= spacing )
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247 | rect.bottom -= delta;
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248 |
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249 | nstagger = (rect.bottom - rect.top)/(3 * spacing);
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250 | lpPos[1].x = (rect.right - rect.left - nstagger * spacing);
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251 | lpPos[1].y = (rect.bottom - rect.top - nstagger * spacing);
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252 | lpPos[0].x = lpPos[0].y = spacing * (n%(nstagger+1));
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253 | }
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254 |
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255 | /**********************************************************************
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256 | * MDI_ChildGetMinMaxInfo
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257 | *
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258 | * Note: The rule here is that client rect of the maximized MDI child
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259 | * is equal to the client rect of the MDI client window.
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260 | */
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261 | void Win32MDIChildWindow::childGetMinMaxInfo(MINMAXINFO* lpMinMax )
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262 | {
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263 | Win32MDIClientWindow *client = (Win32MDIClientWindow *)getParent();
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264 | RECT rect = *client->getClientRect();
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265 |
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266 | if(client->getParent() == NULL) {
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267 | dprintf(("Win32MDIChildWindow::childGetMinMaxInfo:: client parent == NULL!!"));
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268 | return;
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269 | }
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270 | MapWindowPoints(client->getParent()->getWindowHandle(), client->getWindowHandle(), (LPPOINT)&rect, 2);
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271 |
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272 | AdjustWindowRectEx( &rect, getStyle(), 0, getExStyle());
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273 |
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274 | lpMinMax->ptMaxSize.x = rect.right -= rect.left;
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275 | lpMinMax->ptMaxSize.y = rect.bottom -= rect.top;
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276 |
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277 | lpMinMax->ptMaxPosition.x = rect.left;
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278 | lpMinMax->ptMaxPosition.y = rect.top;
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279 | }
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280 |
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281 | //******************************************************************************
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282 | //******************************************************************************
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283 |
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