1 | ;; Something_Wrong_Between_Docking_and_GUI_ScrollBars.au3 |
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2 | ;; Notes: |
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3 | ;; 1. This script is based upon the example in the AutoIt help |
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4 | ;; file for UDF function _GUIScrollBars_Init. Similar effects |
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5 | ;; can be observed using that example, although the child GUIs |
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6 | ;; seem to behave correctly. |
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7 | ;; |
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8 | ;; 2. Melba23's UDF, "Scrollbars Made Easy" also exhibits issue #1, but not #2. |
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9 | ;; http://www.autoitscript.com/forum/topic/113723-scrollbars-made-easy-new-version-9-aug-14/ |
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10 | |
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11 | #include <GUIConstantsEx.au3> |
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12 | #include <GuiScrollBars.au3> |
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13 | #include <StructureConstants.au3> |
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14 | #include <WindowsConstants.au3> |
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15 | |
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16 | Example() |
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17 | |
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18 | Func Example() |
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19 | Local $hGUIMsg, $hGUI |
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20 | |
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21 | Local $iMaxHScroll = 425 |
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22 | Local $iMaxVScroll = 325 |
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23 | |
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24 | Local $iGUIHeight = 300 |
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25 | |
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26 | $hGUI = GUICreate("2 ScrollBar Issues", 400, $iGUIHeight, -1, -1, BitOR($WS_MINIMIZEBOX, $WS_CAPTION, $WS_POPUP, $WS_SYSMENU, $WS_SIZEBOX)) |
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27 | GUISetBkColor(0x88AABB) |
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28 | |
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29 | $b0 = GUICtrlCreateButton("0,0 x 100,40", 0, 0, 100, 40) |
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30 | GUICtrlSetResizing(-1, $GUI_DOCKALL) |
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31 | |
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32 | $b1 = GUICtrlCreateButton("Show Issue 1", 120, 0, 100, 40) |
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33 | GUICtrlSetResizing(-1, $GUI_DOCKALL) |
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34 | |
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35 | $b2 = GUICtrlCreateButton("Show Issue 2", 230, 0, 100, 40) |
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36 | GUICtrlSetResizing(-1, $GUI_DOCKALL) |
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37 | |
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38 | Local $sIssue1 = _ |
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39 | " 1. Start the script." & @LF & _ |
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40 | " 2. Note the location of the leftmost button is 0,0." & @LF & _ |
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41 | " 3. Drag the horizontal scroll bar a little to the right." & @LF & _ |
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42 | " The left button scrolls off the left side as it should." & @LF & _ |
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43 | " So far, all is well." & @LF & _ |
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44 | " 4. Drag the bottom of the GUI up or down, noting that the button" & @LF & _ |
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45 | " moves completely into view (it should NOT do that!)." & @LF & _ |
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46 | " This note moves too, just like the button." & @LF & _ |
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47 | " 5. Drag the horizontal scroll bar all the way to the left." & @LF & _ |
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48 | " 6. Note the location of the leftmost button and this note. " & @LF & _ |
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49 | " They're NOT where they should be. The leftmost button" & @LF & _ |
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50 | " should be at 0,0. Click that button to get its position." & @LF & _ |
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51 | " 7. Drag the bottom of the GUI up or down, " & @LF & _ |
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52 | " and the button repositions correctly." & @LF & _ |
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53 | " 8. The same thing happens with the vertical scroll bar," & @LF & _ |
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54 | " and/or combinations of dragging the GUI borders." & @LF & _ |
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55 | " 9. This is NOT an issue if the window cannot be resized." & @LF & _ |
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56 | "10. This same issue occurs in Melba23's 'Scrollbars Made Easy' UDF." |
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57 | |
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58 | Local $sIssue2 = _ |
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59 | " 1. The height of the vertical scroll bar thumb, and its maximum " & @LF & _ |
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60 | " range are incorrect. Since the height of the GUI is " & $iGUIHeight & ", and" & @LF & _ |
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61 | " function _GUIScrollBars_Init specifies the maximum vertical " & @LF & _ |
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62 | " value as " & $iMaxVScroll & ", the height of the thumb should be greater" & @LF & _ |
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63 | " then it is, and the movement should be very little, much like" & @LF & _ |
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64 | " the horizontal scroll bar." |
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65 | |
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66 | |
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67 | ;; Start with Issue 1 displayed in the label |
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68 | $l1 = GUICtrlCreateLabel($sIssue1, 60, 45, 400, 240) |
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69 | GUICtrlSetResizing(-1, $GUI_DOCKALL) |
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70 | GUICtrlSetBkColor(-1, 0xffffff) |
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71 | |
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72 | GUIRegisterMsg($WM_SIZE, "WM_SIZE") |
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73 | GUIRegisterMsg($WM_VSCROLL, "WM_VSCROLL") |
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74 | GUIRegisterMsg($WM_HSCROLL, "WM_HSCROLL") |
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75 | |
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76 | GUISetState(@SW_SHOW) |
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77 | |
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78 | ;; _GUIScrollBars_Init($hGUI) |
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79 | _GUIScrollBars_Init($hGUI, $iMaxHScroll, $iMaxVScroll) |
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80 | |
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81 | While 1 |
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82 | $hGUIMsg = GUIGetMsg() |
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83 | |
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84 | Switch $hGUIMsg |
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85 | Case $GUI_EVENT_CLOSE |
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86 | ExitLoop |
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87 | |
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88 | Case $b0 |
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89 | Local $a1 = ControlGetPos("2 ScrollBar Issues", "", $b0) |
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90 | MsgBox(4096, "Button Position", "The position of this button is " & $a1[0] & "," & $a1[1]) |
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91 | |
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92 | Case $b1 |
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93 | ;; Display issue 1 |
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94 | GUICtrlSetData($l1, $sIssue1) |
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95 | |
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96 | Case $b2 |
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97 | ;; Display issue 2 |
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98 | GUICtrlSetData($l1, $sIssue2) |
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99 | |
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100 | EndSwitch |
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101 | WEnd |
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102 | |
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103 | Exit |
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104 | EndFunc ;==>Example |
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105 | |
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106 | |
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107 | Func WM_SIZE($hWnd, $iMsg, $wParam, $lParam) |
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108 | #forceref $iMsg, $wParam |
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109 | Local $iIndex = -1, $iCharY, $iCharX, $iClientMaxX, $iClientX, $iClientY, $iMax |
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110 | For $x = 0 To UBound($__g_aSB_WindowInfo) - 1 |
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111 | If $__g_aSB_WindowInfo[$x][0] = $hWnd Then |
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112 | $iIndex = $x |
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113 | $iClientMaxX = $__g_aSB_WindowInfo[$iIndex][1] |
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114 | $iCharX = $__g_aSB_WindowInfo[$iIndex][2] |
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115 | $iCharY = $__g_aSB_WindowInfo[$iIndex][3] |
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116 | $iMax = $__g_aSB_WindowInfo[$iIndex][7] |
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117 | ExitLoop |
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118 | EndIf |
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119 | Next |
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120 | If $iIndex = -1 Then Return 0 |
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121 | |
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122 | Local $tSCROLLINFO = DllStructCreate($tagSCROLLINFO) |
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123 | |
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124 | ; Retrieve the dimensions of the client area. |
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125 | $iClientX = BitAND($lParam, 0x0000FFFF) |
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126 | $iClientY = BitShift($lParam, 16) |
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127 | $__g_aSB_WindowInfo[$iIndex][4] = $iClientX |
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128 | $__g_aSB_WindowInfo[$iIndex][5] = $iClientY |
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129 | |
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130 | ; Set the vertical scrolling range and page size |
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131 | DllStructSetData($tSCROLLINFO, "fMask", BitOR($SIF_RANGE, $SIF_PAGE)) |
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132 | DllStructSetData($tSCROLLINFO, "nMin", 0) |
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133 | DllStructSetData($tSCROLLINFO, "nMax", $iMax) |
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134 | DllStructSetData($tSCROLLINFO, "nPage", $iClientY / $iCharY) |
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135 | _GUIScrollBars_SetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO) |
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136 | |
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137 | ; Set the horizontal scrolling range and page size |
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138 | DllStructSetData($tSCROLLINFO, "fMask", BitOR($SIF_RANGE, $SIF_PAGE)) |
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139 | DllStructSetData($tSCROLLINFO, "nMin", 0) |
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140 | DllStructSetData($tSCROLLINFO, "nMax", 2 + $iClientMaxX / $iCharX) |
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141 | DllStructSetData($tSCROLLINFO, "nPage", $iClientX / $iCharX) |
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142 | _GUIScrollBars_SetScrollInfo($hWnd, $SB_HORZ, $tSCROLLINFO) |
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143 | |
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144 | Return $GUI_RUNDEFMSG |
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145 | EndFunc ;==>WM_SIZE |
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146 | |
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147 | Func WM_HSCROLL($hWnd, $iMsg, $wParam, $lParam) |
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148 | #forceref $iMsg, $lParam |
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149 | Local $iScrollCode = BitAND($wParam, 0x0000FFFF) |
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150 | |
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151 | Local $iIndex = -1, $iCharX, $iPosX |
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152 | Local $iMin, $iMax, $iPage, $iPos, $iTrackPos |
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153 | |
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154 | For $x = 0 To UBound($__g_aSB_WindowInfo) - 1 |
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155 | If $__g_aSB_WindowInfo[$x][0] = $hWnd Then |
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156 | $iIndex = $x |
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157 | $iCharX = $__g_aSB_WindowInfo[$iIndex][2] |
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158 | ExitLoop |
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159 | EndIf |
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160 | Next |
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161 | If $iIndex = -1 Then Return 0 |
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162 | |
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163 | ; ; Get all the horizontal scroll bar information |
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164 | Local $tSCROLLINFO = _GUIScrollBars_GetScrollInfoEx($hWnd, $SB_HORZ) |
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165 | $iMin = DllStructGetData($tSCROLLINFO, "nMin") |
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166 | $iMax = DllStructGetData($tSCROLLINFO, "nMax") |
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167 | $iPage = DllStructGetData($tSCROLLINFO, "nPage") |
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168 | ; Save the position for comparison later on |
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169 | $iPosX = DllStructGetData($tSCROLLINFO, "nPos") |
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170 | $iPos = $iPosX |
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171 | $iTrackPos = DllStructGetData($tSCROLLINFO, "nTrackPos") |
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172 | #forceref $iMin, $iMax |
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173 | Switch $iScrollCode |
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174 | |
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175 | Case $SB_LINELEFT ; user clicked left arrow |
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176 | DllStructSetData($tSCROLLINFO, "nPos", $iPos - 1) |
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177 | |
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178 | Case $SB_LINERIGHT ; user clicked right arrow |
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179 | DllStructSetData($tSCROLLINFO, "nPos", $iPos + 1) |
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180 | |
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181 | Case $SB_PAGELEFT ; user clicked the scroll bar shaft left of the scroll box |
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182 | DllStructSetData($tSCROLLINFO, "nPos", $iPos - $iPage) |
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183 | |
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184 | Case $SB_PAGERIGHT ; user clicked the scroll bar shaft right of the scroll box |
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185 | DllStructSetData($tSCROLLINFO, "nPos", $iPos + $iPage) |
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186 | |
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187 | Case $SB_THUMBTRACK ; user dragged the scroll box |
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188 | DllStructSetData($tSCROLLINFO, "nPos", $iTrackPos) |
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189 | EndSwitch |
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190 | |
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191 | ; // Set the position and then retrieve it. Due to adjustments |
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192 | ; // by Windows it may not be the same as the value set. |
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193 | |
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194 | DllStructSetData($tSCROLLINFO, "fMask", $SIF_POS) |
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195 | _GUIScrollBars_SetScrollInfo($hWnd, $SB_HORZ, $tSCROLLINFO) |
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196 | _GUIScrollBars_GetScrollInfo($hWnd, $SB_HORZ, $tSCROLLINFO) |
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197 | ;// If the position has changed, scroll the window and update it |
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198 | $iPos = DllStructGetData($tSCROLLINFO, "nPos") |
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199 | If ($iPos <> $iPosX) Then _GUIScrollBars_ScrollWindow($hWnd, $iCharX * ($iPosX - $iPos), 0) |
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200 | Return $GUI_RUNDEFMSG |
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201 | EndFunc ;==>WM_HSCROLL |
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202 | |
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203 | Func WM_VSCROLL($hWnd, $iMsg, $wParam, $lParam) |
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204 | #forceref $iMsg, $wParam, $lParam |
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205 | Local $iScrollCode = BitAND($wParam, 0x0000FFFF) |
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206 | Local $iIndex = -1, $iCharY, $iPosY |
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207 | Local $iMin, $iMax, $iPage, $iPos, $iTrackPos |
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208 | |
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209 | For $x = 0 To UBound($__g_aSB_WindowInfo) - 1 |
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210 | If $__g_aSB_WindowInfo[$x][0] = $hWnd Then |
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211 | $iIndex = $x |
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212 | $iCharY = $__g_aSB_WindowInfo[$iIndex][3] |
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213 | ExitLoop |
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214 | EndIf |
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215 | Next |
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216 | If $iIndex = -1 Then Return 0 |
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217 | |
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218 | ; Get all the vertial scroll bar information |
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219 | Local $tSCROLLINFO = _GUIScrollBars_GetScrollInfoEx($hWnd, $SB_VERT) |
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220 | $iMin = DllStructGetData($tSCROLLINFO, "nMin") |
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221 | $iMax = DllStructGetData($tSCROLLINFO, "nMax") |
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222 | $iPage = DllStructGetData($tSCROLLINFO, "nPage") |
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223 | ; Save the position for comparison later on |
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224 | $iPosY = DllStructGetData($tSCROLLINFO, "nPos") |
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225 | $iPos = $iPosY |
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226 | $iTrackPos = DllStructGetData($tSCROLLINFO, "nTrackPos") |
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227 | |
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228 | Switch $iScrollCode |
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229 | Case $SB_TOP ; user clicked the HOME keyboard key |
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230 | DllStructSetData($tSCROLLINFO, "nPos", $iMin) |
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231 | |
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232 | Case $SB_BOTTOM ; user clicked the END keyboard key |
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233 | DllStructSetData($tSCROLLINFO, "nPos", $iMax) |
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234 | |
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235 | Case $SB_LINEUP ; user clicked the top arrow |
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236 | DllStructSetData($tSCROLLINFO, "nPos", $iPos - 1) |
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237 | |
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238 | Case $SB_LINEDOWN ; user clicked the bottom arrow |
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239 | DllStructSetData($tSCROLLINFO, "nPos", $iPos + 1) |
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240 | |
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241 | Case $SB_PAGEUP ; user clicked the scroll bar shaft above the scroll box |
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242 | DllStructSetData($tSCROLLINFO, "nPos", $iPos - $iPage) |
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243 | |
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244 | Case $SB_PAGEDOWN ; user clicked the scroll bar shaft below the scroll box |
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245 | DllStructSetData($tSCROLLINFO, "nPos", $iPos + $iPage) |
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246 | |
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247 | Case $SB_THUMBTRACK ; user dragged the scroll box |
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248 | DllStructSetData($tSCROLLINFO, "nPos", $iTrackPos) |
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249 | EndSwitch |
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250 | |
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251 | ; // Set the position and then retrieve it. Due to adjustments |
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252 | ; // by Windows it may not be the same as the value set. |
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253 | |
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254 | DllStructSetData($tSCROLLINFO, "fMask", $SIF_POS) |
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255 | _GUIScrollBars_SetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO) |
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256 | _GUIScrollBars_GetScrollInfo($hWnd, $SB_VERT, $tSCROLLINFO) |
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257 | ;// If the position has changed, scroll the window and update it |
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258 | $iPos = DllStructGetData($tSCROLLINFO, "nPos") |
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259 | |
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260 | If ($iPos <> $iPosY) Then |
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261 | _GUIScrollBars_ScrollWindow($hWnd, 0, $iCharY * ($iPosY - $iPos)) |
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262 | $iPosY = $iPos |
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263 | EndIf |
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264 | |
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265 | Return $GUI_RUNDEFMSG |
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266 | EndFunc ;==>WM_VSCROLL |
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