| 1 | #include <windows.h> |
| 2 | #include <winreg.h> |
| 3 | #include <tchar.h> |
| 4 | #include <stdio.h> |
| 5 | #include <stdlib.h> |
| 6 | |
| 7 | #include "putty.h" |
| 8 | #include "winstuff.h" |
| 9 | |
| 10 | static ATOM tip_class = 0; |
| 11 | |
| 12 | static HFONT tip_font; |
| 13 | static COLORREF tip_bg; |
| 14 | static COLORREF tip_text; |
| 15 | |
| 16 | static LRESULT CALLBACK SizeTipWndProc(HWND hWnd, UINT nMsg, |
| 17 | WPARAM wParam, LPARAM lParam) |
| 18 | { |
| 19 | |
| 20 | switch (nMsg) { |
| 21 | case WM_ERASEBKGND: |
| 22 | return TRUE; |
| 23 | |
| 24 | case WM_PAINT: |
| 25 | { |
| 26 | HBRUSH hbr; |
| 27 | HGDIOBJ holdbr; |
| 28 | RECT cr; |
| 29 | int wtlen; |
| 30 | LPTSTR wt; |
| 31 | HDC hdc; |
| 32 | |
| 33 | PAINTSTRUCT ps; |
| 34 | hdc = BeginPaint(hWnd, &ps); |
| 35 | |
| 36 | SelectObject(hdc, tip_font); |
| 37 | SelectObject(hdc, GetStockObject(BLACK_PEN)); |
| 38 | |
| 39 | hbr = CreateSolidBrush(tip_bg); |
| 40 | holdbr = SelectObject(hdc, hbr); |
| 41 | |
| 42 | GetClientRect(hWnd, &cr); |
| 43 | Rectangle(hdc, cr.left, cr.top, cr.right, cr.bottom); |
| 44 | |
| 45 | wtlen = GetWindowTextLength(hWnd); |
| 46 | wt = (LPTSTR) smalloc((wtlen + 1) * sizeof(TCHAR)); |
| 47 | GetWindowText(hWnd, wt, wtlen + 1); |
| 48 | |
| 49 | SetTextColor(hdc, tip_text); |
| 50 | SetBkColor(hdc, tip_bg); |
| 51 | |
| 52 | TextOut(hdc, cr.left + 3, cr.top + 3, wt, wtlen); |
| 53 | |
| 54 | sfree(wt); |
| 55 | |
| 56 | SelectObject(hdc, holdbr); |
| 57 | DeleteObject(hbr); |
| 58 | |
| 59 | EndPaint(hWnd, &ps); |
| 60 | } |
| 61 | return 0; |
| 62 | |
| 63 | case WM_NCHITTEST: |
| 64 | return HTTRANSPARENT; |
| 65 | |
| 66 | case WM_DESTROY: |
| 67 | DeleteObject(tip_font); |
| 68 | tip_font = NULL; |
| 69 | break; |
| 70 | |
| 71 | case WM_SETTEXT: |
| 72 | { |
| 73 | LPCTSTR str = (LPCTSTR) lParam; |
| 74 | SIZE sz; |
| 75 | HDC hdc = CreateCompatibleDC(NULL); |
| 76 | |
| 77 | SelectObject(hdc, tip_font); |
| 78 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
| 79 | |
| 80 | SetWindowPos(hWnd, NULL, 0, 0, sz.cx + 6, sz.cy + 6, |
| 81 | SWP_NOZORDER | SWP_NOMOVE | SWP_NOACTIVATE); |
| 82 | InvalidateRect(hWnd, NULL, FALSE); |
| 83 | |
| 84 | DeleteDC(hdc); |
| 85 | } |
| 86 | break; |
| 87 | } |
| 88 | |
| 89 | return DefWindowProc(hWnd, nMsg, wParam, lParam); |
| 90 | } |
| 91 | |
| 92 | static HWND tip_wnd = NULL; |
| 93 | static int tip_enabled = 0; |
| 94 | |
| 95 | void UpdateSizeTip(HWND src, int cx, int cy) |
| 96 | { |
| 97 | TCHAR str[32]; |
| 98 | |
| 99 | if (!tip_enabled) |
| 100 | return; |
| 101 | |
| 102 | if (!tip_wnd) { |
| 103 | NONCLIENTMETRICS nci; |
| 104 | |
| 105 | /* First make sure the window class is registered */ |
| 106 | |
| 107 | if (!tip_class) { |
| 108 | WNDCLASS wc; |
| 109 | wc.style = CS_HREDRAW | CS_VREDRAW; |
| 110 | wc.lpfnWndProc = SizeTipWndProc; |
| 111 | wc.cbClsExtra = 0; |
| 112 | wc.cbWndExtra = 0; |
| 113 | wc.hInstance = hinst; |
| 114 | wc.hIcon = NULL; |
| 115 | wc.hCursor = NULL; |
| 116 | wc.hbrBackground = NULL; |
| 117 | wc.lpszMenuName = NULL; |
| 118 | wc.lpszClassName = "SizeTipClass"; |
| 119 | |
| 120 | tip_class = RegisterClass(&wc); |
| 121 | } |
| 122 | #if 0 |
| 123 | /* Default values based on Windows Standard color scheme */ |
| 124 | |
| 125 | tip_font = GetStockObject(SYSTEM_FONT); |
| 126 | tip_bg = RGB(255, 255, 225); |
| 127 | tip_text = RGB(0, 0, 0); |
| 128 | #endif |
| 129 | |
| 130 | /* Prepare other GDI objects and drawing info */ |
| 131 | |
| 132 | tip_bg = GetSysColor(COLOR_INFOBK); |
| 133 | tip_text = GetSysColor(COLOR_INFOTEXT); |
| 134 | |
| 135 | memset(&nci, 0, sizeof(NONCLIENTMETRICS)); |
| 136 | nci.cbSize = sizeof(NONCLIENTMETRICS); |
| 137 | SystemParametersInfo(SPI_GETNONCLIENTMETRICS, |
| 138 | sizeof(NONCLIENTMETRICS), &nci, 0); |
| 139 | tip_font = CreateFontIndirect(&nci.lfStatusFont); |
| 140 | } |
| 141 | |
| 142 | /* Generate the tip text */ |
| 143 | |
| 144 | sprintf(str, "%dx%d", cx, cy); |
| 145 | |
| 146 | if (!tip_wnd) { |
| 147 | HDC hdc; |
| 148 | SIZE sz; |
| 149 | RECT wr; |
| 150 | int ix, iy; |
| 151 | |
| 152 | /* calculate the tip's size */ |
| 153 | |
| 154 | hdc = CreateCompatibleDC(NULL); |
| 155 | GetTextExtentPoint32(hdc, str, _tcslen(str), &sz); |
| 156 | DeleteDC(hdc); |
| 157 | |
| 158 | GetWindowRect(src, &wr); |
| 159 | |
| 160 | ix = wr.left; |
| 161 | if (ix < 16) |
| 162 | ix = 16; |
| 163 | |
| 164 | iy = wr.top - sz.cy; |
| 165 | if (iy < 16) |
| 166 | iy = 16; |
| 167 | |
| 168 | /* Create the tip window */ |
| 169 | |
| 170 | tip_wnd = |
| 171 | CreateWindowEx(WS_EX_TOOLWINDOW | WS_EX_TOPMOST, |
| 172 | MAKEINTRESOURCE(tip_class), str, WS_POPUP, ix, |
| 173 | iy, sz.cx, sz.cy, NULL, NULL, hinst, NULL); |
| 174 | |
| 175 | ShowWindow(tip_wnd, SW_SHOWNOACTIVATE); |
| 176 | |
| 177 | } else { |
| 178 | |
| 179 | /* Tip already exists, just set the text */ |
| 180 | |
| 181 | SetWindowText(tip_wnd, str); |
| 182 | } |
| 183 | } |
| 184 | |
| 185 | void EnableSizeTip(int bEnable) |
| 186 | { |
| 187 | if (tip_wnd && !bEnable) { |
| 188 | DestroyWindow(tip_wnd); |
| 189 | tip_wnd = NULL; |
| 190 | } |
| 191 | |
| 192 | tip_enabled = bEnable; |
| 193 | } |