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