MiniGUI - 列表型控件-白红宇

MiniGUI - 列表型控件

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发布时间：2019-06-09

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CTRL_LISTVIEW

风格选项

LVS_TREEVIEW 以树型的方式来显示列表项

LVS_UPNOTIFY 指定鼠标点击操作的响应方式，默认情况下，如果没有指定 LVS_UPNOTIFY 风格，列表型控件将在鼠标按下时发出通知消息；如果指定了该风格，控件将在鼠标抬起时发出通知消息

数据结构

列

typedef struct _LVCOLUMN

{

int nCols; // 新增列的位置，如果小于0或者超出列次序范围则添加为最后一列

int width; // 列宽

char *pszHeadText; // 列的标题

int nTextMax; // 列标题的最大长度

DWORD image; // 列表头的图像，3.0为保留字段

PFNLVCOMPARE pfnCompare; // 用于列排序的比较函数

DWORD colFlags; // 列标志，LVCF_LEFTALIGN、LVCF_RIGHTALIGN 和 LVCF_CENTERALIGN，分别代表中文左对齐、居中、右对齐

} LVCOLUMN;

typedef LVCOLUMN *PLVCOLUMN;

列表项比较函数

typedef int (*PFNLVCOMPARE) (int nItem1, int nItem2, PLVSORTDATA sortData); // sortData在3.0中没有意义

自定义字符串比较函数

typedef int (*STRCMP) (const char* s1, const char* s2, size_t n);

列表项

typedef struct _LVITEM

{

int nItem; // 新增列表项的位置索引值，如果该值超出索引值范围的话，新增的项将被添加到列表的最后，如果 LVM_ADDITEM 消息的 wParam 参数指定了新添节点的

// 父节点，nItem 项所表示的位置值指的是新添节点在父节点中的位置

int nItemHeight; // 列表项的高度

DWORD itemData; // 列表项的附加数据

DWORD dwFlags; // 列表项的状态， LVIF_FOLD，列表项可折叠

} LVITEM;

列表子项

typedef struct _LVSUBITEM

{

DWORD flags; // 子项的标志，LVFLAG_BITMAP 和 LVFLAG_ICON

int nItem; // 子项的垂直索引值

int subItem; // 子项的水平索引值

char *pszText; // 子项的文字内容

int nTextMax; // 子项的文字长度

int nTextColor; // 子项的文字颜色

DWORD image; // 子项的图像

} LVSUBITEM;

typedef LVSUBITEM *PLVSUBITEM;

列表项查找信息

typedef struct _LVFINDINFO

{

DWORD flags; // 查找标志，LVFF_TEXT和（或）LVFF_ADDDATA

int iStart; // 查找的开始索引

int nCols; // 表示匹配的列表项中前nCols列子项的文字内容要和pszInfo中的字符串一致

char **pszInfo; // 查找的多个子项文字内容

DWORD addData; // 列表项附加数据

int nItem; // The found item's row, reserved

int nSubitem; // The found subitem's column, reserved

} LVFINDINFO;

typedef LVFINDINFO *PLVFINDINFO;

消息

1. 列的操作

添加列： LVCOLUMN p; SendMessage (hwndListView,
LVM_ADDCOLUMN, 0, (LPARAM)&p);

设置修改列属性：LVCOLUMN p; SendMessage (hwndListView,
LVM_SETCOLUMN, 0, (LPARAM)&p);

设置列表头标题：LVCOLUMN p; SendMessage (hwndListView,
LVM_MODIFYHEAD, 0, (LPARAM)&p); // 只需给出 nCols 和 pszHeadText 项的值

获取列属性：LVCOLUMN p; int nCols; SendMessage (hwndListView,
LVM_GETCOLUMN, nCols, (LPARAM)&p);

获取列宽度：int width; int nCols; width = SendMessage (hwndListView,
LVM_GETCOLUMNWIDTH, nCols, 0);

获取列数量：int count; count = SendMessage (hwndListView,
LVM_GETCOLUMNCOUNT, 0, 0);

删除列：int nCols; SendMessage (hwndListView,
LVM_DELCOLUMN, nCols, 0);

设置列表头高度：int newHeight; SendMessage (hwndListView,
LVM_SETHEADHEIGHT, newHeight, 0);

2. 列表项操作

添加列表项：HLVITEM hItem; HLVITEM hParent; LVITEM lvItem; hItem = SendMessage (hwndListView,
LVM_ADDITEM, hParent, (LPARAM)&lvItem);

获取列表项：LVITEM lvItem; HLVITEM hItem; SendMessage (hwndListView,
LVM_GETITEM, hItem, (LPARAM)&lvItem); // hItem 为目标列表型的句柄，如果 hItem 为 0，lvItem 结构的 nItem 域应该预设为所要获取的列表项的索引值

获取列表项数量：int count; count = SendMessage (hwndListView,
LVM_GETITEMCOUNT, 0, 0);

获取列表项附加数据：DWORD addData; int nItem; HLVITEM hItem; addData = SendMessage (hwndListView,
LVM_GETITEMADDDATA, nItem, hItem);

设置列表项附加数据：HLVITEM hItem; DWORD addData; SendMessage (hwndListView,
LVM_SETITEMADDDATA, hItem, (LPARAM)addData); // 如果设置成功，返回 LV_OKAY，否则返回 LV_ERR

设置列表项高度：HLVITEM hItem; int newHeight; SendMessage (hwndListView,
LVM_SETITEMHEIGHT, hItem, newHeight); // 如果设置成功，返回 TRUE，否则返回 FALSE

删除一个列表项：HLVITEM hItem; int nItem; SendMessage (hwndListView,
LVM_DELITEM, nItem, hItem);

删除所有列表项：SendMessage (hwndListView,
LVM_DELALLITEM, 0, 0);

设置子项属性：LVSUBITEM subItem; HLVITEM hItem; SendMessage (hwndListView,
LVM_SETSUBITEM, hItem, (LPARAM)&subItem);

获取子项文字：LVSUBITEM subItem; HLVITEM hItem; SendMessage (hwndListView,
LVM_GETSUBITEMTEXT, hItem, (LPARAM)&subItem);

设置子项文字：LVSUBITEM subItem; HLVITEM hItem; SendMessage (hwndListView,
LVM_SETSUBITEMTEXT, hItem, (LPARAM)&subItem);

获取子项文字长度：LVSUBITEM subItem; HLVITEM hItem; int len; len = SendMessage (hwndListView,
LVM_GETSUBITEMLEN, hItem, (LPARAM)&subItem);

选择列表项：int nItem; HLVITEM hItem; SendMessage (hwndListView,
LVM_SELECTITEM, nItem, hItem); // 选择的列表项不一定可见

获取被选中的列表项：HLVITEM hItemSelected; hItemSelected = SendMessage (hwndListView,
LVM_GETSELECTEDITEM, 0, 0);

使列表项可见：HLVITEM hItem; int nItem; SendMessage (hwndListView,
LVM_SHOWITEM, nItem, hItem); // 成为可见区域中的第一个或最后一个可见条目，而且是完全可见的

选中并使列表项可见：int nItem; HHLVITEM hItem; SendMessage (hwndListView,
LVM_CHOOSEITEM, nItem, hItem);

查找列表项：HLVITEM hFound; HLVITEM hParent; LVFINDINFO findInfo; hFound = SendMessage (hwndListView,
LVM_FINDITEM, hParent, (LPARAM)&findInfo);

对列表项排序：SendMessage (hwndListView,
LVM_SORTITEMS, 0, (LPARAM)pfnCompare); // pfnCompare指向一个PFNLVCOMPARE类型的函数

依据某一列排序：int nCol; SendMessage (hwndListView,
LVM_COLSORT, nCol, 0);

设置自定义字符串比较函数：SendMessage (hwndListView,
LVM_SETSTRCMPFUNC, 0, (LPARAM)pfnStrCmp); // 默认字符串比较函数是strcasecmp，pfnStrCmp指向STRCMP类型的函数

3. 树型节点的操作

获取相关节点：int related; HLVITEM hItem; HLVITEM hRelatedItem; hRelatedItem = SendMessage (hwndListView,
LVM_GETRELATEDITEM, related, hItem);

/*related 指定相关节点和目标节点的关系，包括：

• LVIR_PARENT：获取父节点

• LVIR_FIRSTCHILD：获取第一个子节点

• LVIR_NEXTSIBLING：获取下一个兄弟节点

• LVIR_PREVSIBLING：获取前一个兄弟节点*/

折叠或者展开一个包含子节点的节点项：HLVITEM hItem; BOOL bFold; SendMessage (hwndListView,
LVM_FOLDITEM, bFold, hItem); // bFold为TRUE的话折叠节点项，否则展开节点项

通知

1. 具有 LVS_NOTIFY 风格的列表框可能产生的通知消息

LVN_ITEMRDOWN：用户鼠标右键在列表项上按下

LVN_ITEMRUP：用户鼠标右键在列表项上抬起

LVN_HEADRDOWN：用户鼠标右键在表头上按下

LVN_HEADRUP：用户鼠标右键在表头上抬起

LVN_KEYDOWN：键按下

LVN_ITEMDBCLK：用户双击某个列表项

LVN_ITEMCLK：用户单击某个列表项（保留）

LVN_SELCHANGE：当前选择的列表项改变

LVN_FOLDED：用户鼠标点击某个列表项，使之折叠

LVN_UNFOLDED：用户鼠标点击某个列表项，使之展开

当用户鼠标右键在列表项上按下时，该项将被选中，并且产生LVN_SELCHANGE和LVN_ITEMRDOWN两个通知码

2. 使用SetNotificationCallback函数注册一个自定义的通知消息处理函数

mg-samples的列表型控件示例

1 #include 
     
        2 #include 
      
         3 #include 
       
          4 #include 
        
           5 #include 
         
            6   7 #include 
          
            8 #include 
           
             9 #include 
            
              10 #include 
             
               11 #include 
              
                12 13 #define IDC_LISTVIEW 10 14 #define IDC_CTRL1 20 15 #define IDC_CTRL2 30 16 17 #define SUB_NUM 3 18 19 #define COL_NR TABLESIZE(caption) 20 #define SCORE_NUM TABLESIZE(scores) 21 22 #define everage_score "Everage score" 23 #define getting_the_average_score "Getting the average score" 24 25 typedef struct _SCORE 26 { 27 char *name; 28 int scr[SUB_NUM]; 29 } SCORE; 30 31 static char * caption [] = 32 { 33 "Name", "Chinese", "Math", "English" 34 }; 35 36 static char *classes [] = 37 { 38 "Grade 1", "Grade 2", "Grade 3" 39 }; 40 41 static SCORE scores[] = 42 { 43 { "Tom", { 81, 96, 75}}, 44 { "Jack", { 98, 62, 84}}, 45 { "Merry", { 79, 88, 89}}, 46 { "Bob", { 79, 88, 89}}, 47 }; 48 49 static GHANDLE add_class_item (HWND hlist, PLVITEM lvItem, GHANDLE classent) 50 { 51 LVSUBITEM subdata; 52 GHANDLE item = SendMessage (hlist, LVM_ADDITEM, classent, (LPARAM)lvItem); 53 54 subdata.nItem = lvItem->nItem; 55 subdata.subItem = 0; 56 subdata.pszText = classes[lvItem->nItem];; 57 subdata.nTextColor = PIXEL_black; 58 subdata.flags = 0; 59 subdata.image = 0; 60 SendMessage (hlist, LVM_SETSUBITEM, item, (LPARAM) & subdata); 61 62 return item; 63 } 64 65 static GHANDLE add_score_item (HWND hlist, PLVITEM lvItem, GHANDLE classent) 66 { 67 char buff[20]; 68 LVSUBITEM subdata; 69 GHANDLE item = SendMessage (hlist, LVM_ADDITEM, classent, (LPARAM)lvItem); 70 int i = lvItem->nItem; 71 int j; 72 73 subdata.flags = 0; 74 subdata.image = 0; 75 subdata.nItem = lvItem->nItem; 76 77 for (j = 0; j < 4; j ++) { 78 subdata.subItem = j; 79 if (j == 0) { 80 subdata.pszText = scores[i].name; 81 subdata.nTextColor = PIXEL_black; 82 } 83 else { 84 sprintf (buff, "%d", scores[i].scr[j-1]); 85 subdata.pszText = buff; 86 if (scores[i].scr[j-1] > 90) 87 subdata.nTextColor = PIXEL_red; 88 else 89 subdata.nTextColor = PIXEL_black; 90 } 91 SendMessage (hlist, LVM_SETSUBITEM, item, (LPARAM) & subdata); 92 } 93 94 return item; 95 } 96 97 //#define CUSTOM_DRAW 98 99 #ifdef CUSTOM_DRAW100 101 static void my_draw_hdr_bk (HWND hWnd, HLVHDR hlvhdr, HDC hdc, RECT *rcDraw)102 {103 SetBrushColor (hdc, PIXEL_yellow);104 FillBox (hdc, rcDraw->left, rcDraw->top, RECTWP(rcDraw), RECTHP(rcDraw));105 }106 107 static void my_draw_hdr_item (HWND hWnd, int idx, HDC hdc, RECT *rcDraw)108 {109 Rectangle (hdc, rcDraw->left, rcDraw->top, rcDraw->right, rcDraw->bottom);110 SetBkMode (hdc, BM_TRANSPARENT);111 TextOut (hdc, rcDraw->left+4, rcDraw->top+4, caption[idx]);112 }113 #endif114 115 static int116 ScoreProc (HWND hDlg, int message, WPARAM wParam, LPARAM lParam)117 {118 HWND hListView;119 hListView = GetDlgItem (hDlg, IDC_LISTVIEW);120 121 switch (message)122 {123 124 case MSG_INITDIALOG:125 {126 int i, j;127 LVITEM item;128 LVCOLUMN lvcol;129 GHANDLE hitem;130 #ifdef CUSTOM_DRAW131 LVCUSTOMDRAWFUNCS myfuncs = {my_draw_hdr_bk, my_draw_hdr_item};132 133 SendMessage (hListView, LVM_SETCUSTOMDRAW, 0, (LPARAM) &myfuncs);134 #endif135 136 for (i = 0; i < COL_NR; i++) {137 lvcol.nCols = i;138 lvcol.pszHeadText = caption[i];139 lvcol.width = 75;140 lvcol.pfnCompare = NULL;141 lvcol.colFlags = 0;142 SendMessage (hListView, LVM_ADDCOLUMN, 0, (LPARAM) &lvcol);143 }144 145 item.dwFlags &= ~LVIF_FOLD;146 item.nItemHeight = 25;147 148 SendMessage (hListView, MSG_FREEZECTRL, TRUE, 0);149 hitem = 0;150 for (i = 0; i < 3; i++) {151 item.nItem = i;152 hitem = add_class_item (hListView, &item, 0);153 154 for (j = 0; j < SCORE_NUM; j++) {155 item.nItem = j;156 add_score_item (hListView, &item, hitem);157 }158 159 }160 161 SendMessage (hListView, MSG_FREEZECTRL, FALSE, 0);162 break;163 }164 165 case MSG_COMMAND:166 {167 int id = LOWORD (wParam);168 int i, j;169 170 if (id == IDC_CTRL2) {171 float average = 0;172 char buff[20];173 for (i = 0; i < SCORE_NUM; i++) {174 for (j = 0; j < SUB_NUM; j++) {175 average += scores[i].scr[j];176 }177 }178 average = average / (SCORE_NUM * SUB_NUM);179 180 sprintf (buff, "%4.1f", average);181 SendDlgItemMessage (hDlg, IDC_CTRL1, MSG_SETTEXT, 0, (LPARAM)buff);182 printf("selected column%d\n", SendDlgItemMessage(hDlg, IDC_LISTVIEW, LVM_GETSELECTEDCOLUMN, 0,0));183 }184 break;185 }186 187 case MSG_CLOSE:188 {189 EndDialog (hDlg, 0);190 break;191 }192 193 }194 195 return DefaultDialogProc (hDlg, message, wParam, lParam);196 }197 198 static CTRLDATA CtrlScore[] =199 {200 {201 "button",202 WS_CHILD | WS_VISIBLE | BS_PUSHBUTTON,203 110, 255, 100, 30,204 IDC_CTRL2,205 everage_score,206 0207 },208 {209 "edit",210 WS_CHILD | WS_VISIBLE | WS_BORDER,211 10, 260, 50, 20,212 IDC_CTRL1,213 "",214 0215 },216 {217 "listview",218 /*WS_BORDER |*/ WS_CHILD | WS_VISIBLE | WS_VSCROLL | WS_HSCROLL | LVS_TREEVIEW,219 10, 10, 320, 220,220 IDC_LISTVIEW,221 "score table",222 0223 },224 };225 226 static DLGTEMPLATE DlgScore =227 {228 WS_BORDER | WS_CAPTION,229 WS_EX_NONE,230 0, 0, 350, 340,231 getting_the_average_score,232 0, 0,233 0, NULL,234 0235 };236 237 int MiniGUIMain (int argc, const char* argv[])238 {239 #ifdef _MGRM_PROCESSES240 JoinLayer(NAME_DEF_LAYER , "listview" , 0 , 0);241 #endif242 243 DlgScore.controls = CtrlScore;244 DlgScore.controlnr = TABLESIZE(CtrlScore);245 246 DialogBoxIndirectParam (&DlgScore, HWND_DESKTOP, ScoreProc, 0L);247 248 return 0;249 }250 251 #ifdef _MGRM_THREADS252 #include 
               
                253 #endif