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1 // Windows/Control/Dialog.cpp
2 
3 #include "StdAfx.h"
4 
5 #ifndef _UNICODE
6 #include "../../Common/StringConvert.h"
7 #endif
8 
9 #include "Dialog.h"
10 
11 extern HINSTANCE g_hInstance;
12 #ifndef _UNICODE
13 extern bool g_IsNT;
14 #endif
15 
16 namespace NWindows {
17 namespace NControl {
18 
DialogProcedure(HWND dialogHWND,UINT message,WPARAM wParam,LPARAM lParam)19 static INT_PTR APIENTRY DialogProcedure(HWND dialogHWND, UINT message, WPARAM wParam, LPARAM lParam)
20 {
21   CWindow tempDialog(dialogHWND);
22   if (message == WM_INITDIALOG)
23     tempDialog.SetUserDataLongPtr(lParam);
24   CDialog *dialog = (CDialog *)(tempDialog.GetUserDataLongPtr());
25   if (dialog == NULL)
26     return FALSE;
27   if (message == WM_INITDIALOG)
28     dialog->Attach(dialogHWND);
29   try { return BoolToBOOL(dialog->OnMessage(message, wParam, lParam)); }
30   catch(...) { return TRUE; }
31 }
32 
OnMessage(UINT message,WPARAM wParam,LPARAM lParam)33 bool CDialog::OnMessage(UINT message, WPARAM wParam, LPARAM lParam)
34 {
35   switch (message)
36   {
37     case WM_INITDIALOG: return OnInit();
38     case WM_COMMAND: return OnCommand(wParam, lParam);
39     case WM_NOTIFY: return OnNotify((UINT)wParam, (LPNMHDR) lParam);
40     case WM_TIMER: return OnTimer(wParam, lParam);
41     case WM_SIZE: return OnSize(wParam, LOWORD(lParam), HIWORD(lParam));
42     case WM_HELP: OnHelp(); return true;
43     /*
44         OnHelp(
45           #ifdef UNDER_CE
46           (void *)
47           #else
48           (LPHELPINFO)
49           #endif
50           lParam);
51         return true;
52     */
53     default: return false;
54   }
55 }
56 
OnCommand(WPARAM wParam,LPARAM lParam)57 bool CDialog::OnCommand(WPARAM wParam, LPARAM lParam)
58 {
59   return OnCommand(HIWORD(wParam), LOWORD(wParam), lParam);
60 }
61 
OnCommand(int code,int itemID,LPARAM lParam)62 bool CDialog::OnCommand(int code, int itemID, LPARAM lParam)
63 {
64   if (code == BN_CLICKED)
65     return OnButtonClicked(itemID, (HWND)lParam);
66   return false;
67 }
68 
OnButtonClicked(int buttonID,HWND)69 bool CDialog::OnButtonClicked(int buttonID, HWND /* buttonHWND */)
70 {
71   switch (buttonID)
72   {
73     case IDOK: OnOK(); break;
74     case IDCANCEL: OnCancel(); break;
75     case IDHELP: OnHelp(); break;
76     default: return false;
77   }
78   return true;
79 }
80 
GetWorkAreaRect(RECT * rect)81 static bool GetWorkAreaRect(RECT *rect)
82 {
83   // use another function for multi-monitor.
84   return BOOLToBool(::SystemParametersInfo(SPI_GETWORKAREA, 0, rect, 0));
85 }
86 
IsDialogSizeOK(int xSize,int ySize)87 bool IsDialogSizeOK(int xSize, int ySize)
88 {
89   // it returns for system font. Real font uses another values
90   LONG v = GetDialogBaseUnits();
91   int x = LOWORD(v);
92   int y = HIWORD(v);
93 
94   RECT rect;
95   GetWorkAreaRect(&rect);
96   int wx = RECT_SIZE_X(rect);
97   int wy = RECT_SIZE_Y(rect);
98   return
99     xSize / 4 * x <= wx &&
100     ySize / 8 * y <= wy;
101 }
102 
GetMargins(int margin,int & x,int & y)103 bool CDialog::GetMargins(int margin, int &x, int &y)
104 {
105   x = margin;
106   y = margin;
107   RECT rect;
108   rect.left = 0;
109   rect.top = 0;
110   rect.right = margin;
111   rect.bottom = margin;
112   if (!MapRect(&rect))
113     return false;
114   x = rect.right - rect.left;
115   y = rect.bottom - rect.top;
116   return true;
117 }
118 
Units_To_Pixels_X(int units)119 int CDialog::Units_To_Pixels_X(int units)
120 {
121   RECT rect;
122   rect.left = 0;
123   rect.top = 0;
124   rect.right = units;
125   rect.bottom = units;
126   if (!MapRect(&rect))
127     return units * 3 / 2;
128   return rect.right - rect.left;
129 }
130 
GetItemSizes(int id,int & x,int & y)131 bool CDialog::GetItemSizes(int id, int &x, int &y)
132 {
133   RECT rect;
134   if (!::GetWindowRect(GetItem(id), &rect))
135     return false;
136   x = RECT_SIZE_X(rect);
137   y = RECT_SIZE_Y(rect);
138   return true;
139 }
140 
GetClientRectOfItem(int id,RECT & rect)141 void CDialog::GetClientRectOfItem(int id, RECT &rect)
142 {
143   ::GetWindowRect(GetItem(id), &rect);
144   ScreenToClient(&rect);
145 }
146 
MoveItem(int id,int x,int y,int width,int height,bool repaint)147 bool CDialog::MoveItem(int id, int x, int y, int width, int height, bool repaint)
148 {
149   return BOOLToBool(::MoveWindow(GetItem(id), x, y, width, height, BoolToBOOL(repaint)));
150 }
151 
NormalizeSize(bool fullNormalize)152 void CDialog::NormalizeSize(bool fullNormalize)
153 {
154   RECT workRect;
155   GetWorkAreaRect(&workRect);
156   int xSize = RECT_SIZE_X(workRect);
157   int ySize = RECT_SIZE_Y(workRect);
158   RECT rect;
159   GetWindowRect(&rect);
160   int xSize2 = RECT_SIZE_X(rect);
161   int ySize2 = RECT_SIZE_Y(rect);
162   bool needMove = (xSize2 > xSize || ySize2 > ySize);
163   if (xSize2 > xSize || (needMove && fullNormalize))
164   {
165     rect.left = workRect.left;
166     rect.right = workRect.right;
167     xSize2 = xSize;
168   }
169   if (ySize2 > ySize || (needMove && fullNormalize))
170   {
171     rect.top = workRect.top;
172     rect.bottom = workRect.bottom;
173     ySize2 = ySize;
174   }
175   if (needMove)
176   {
177     if (fullNormalize)
178       Show(SW_SHOWMAXIMIZED);
179     else
180       Move(rect.left, rect.top, xSize2, ySize2, true);
181   }
182 }
183 
NormalizePosition()184 void CDialog::NormalizePosition()
185 {
186   RECT workRect, rect;
187   GetWorkAreaRect(&workRect);
188   GetWindowRect(&rect);
189   if (rect.bottom > workRect.bottom && rect.top > workRect.top)
190     Move(rect.left, workRect.top, RECT_SIZE_X(rect), RECT_SIZE_Y(rect), true);
191 }
192 
Create(LPCTSTR templateName,HWND parentWindow)193 bool CModelessDialog::Create(LPCTSTR templateName, HWND parentWindow)
194 {
195   HWND aHWND = CreateDialogParam(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
196   if (aHWND == 0)
197     return false;
198   Attach(aHWND);
199   return true;
200 }
201 
Create(LPCTSTR templateName,HWND parentWindow)202 INT_PTR CModalDialog::Create(LPCTSTR templateName, HWND parentWindow)
203 {
204   return DialogBoxParam(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
205 }
206 
207 #ifndef _UNICODE
208 
Create(LPCWSTR templateName,HWND parentWindow)209 bool CModelessDialog::Create(LPCWSTR templateName, HWND parentWindow)
210 {
211   HWND aHWND;
212   if (g_IsNT)
213     aHWND = CreateDialogParamW(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
214   else
215   {
216     AString name;
217     LPCSTR templateNameA;
218     if (IS_INTRESOURCE(templateName))
219       templateNameA = (LPCSTR)templateName;
220     else
221     {
222       name = GetSystemString(templateName);
223       templateNameA = name;
224     }
225     aHWND = CreateDialogParamA(g_hInstance, templateNameA, parentWindow, DialogProcedure, (LPARAM)this);
226   }
227   if (aHWND == 0)
228     return false;
229   Attach(aHWND);
230   return true;
231 }
232 
Create(LPCWSTR templateName,HWND parentWindow)233 INT_PTR CModalDialog::Create(LPCWSTR templateName, HWND parentWindow)
234 {
235   if (g_IsNT)
236     return DialogBoxParamW(g_hInstance, templateName, parentWindow, DialogProcedure, (LPARAM)this);
237   AString name;
238   LPCSTR templateNameA;
239   if (IS_INTRESOURCE(templateName))
240     templateNameA = (LPCSTR)templateName;
241   else
242   {
243     name = GetSystemString(templateName);
244     templateNameA = name;
245   }
246   return DialogBoxParamA(g_hInstance, templateNameA, parentWindow, DialogProcedure, (LPARAM)this);
247 }
248 #endif
249 
250 }}
251