/*********************************************************************
*
* MainTask
*/
void MainTask(void) {
WM_HWIN hTree;
TREEVIEW_ITEM_Handle hNode;
int xSize, ySize;
char acBuffer[(TREEVIEW_DEPTH << 1) + 1];
//
// Initialize emWin
//
WM_SetCreateFlags(WM_CF_MEMDEV);
GUI_Init();
xSize = LCD_GetXSize();
ySize = LCD_GetYSize();
//
// Set defaults for background and widgets
//
WM_SetCallback(WM_HBKWIN, _cbBk);
SCROLLBAR_SetDefaultSkin(SCROLLBAR_SKIN_FLEX);
SCROLLBAR_SetDefaultWidth(20);
SCROLLBAR_SetThumbSizeMin(25);
//
//
//
GUI_SetFont(GUI_FONT_24_ASCII);
GUI_DispStringHCenterAt("Customized TREEVIEW widget", 160, 5);
//
// Create TREEVIEW
//
hTree = TREEVIEW_CreateEx(0, 35, xSize, ySize - 35, WM_HBKWIN, WM_CF_SHOW | WM_CF_HASTRANS, 0, GUI_ID_TREEVIEW0);
TREEVIEW_SetAutoScrollV(hTree, 1);
TREEVIEW_SetFont(hTree, GUI_FONT_24_ASCII);
TREEVIEW_SetIndent(hTree, 30);
TREEVIEW_SetTextIndent(hTree, 20);
TREEVIEW_SetImage(hTree, TREEVIEW_BI_PLUS, &bmPlus);
TREEVIEW_SetImage(hTree, TREEVIEW_BI_MINUS, &bmMinus);
TREEVIEW_SetImage(hTree, TREEVIEW_BI_CLOSED, &bmClosed);
TREEVIEW_SetImage(hTree, TREEVIEW_BI_OPEN, &bmOpen);
TREEVIEW_SetImage(hTree, TREEVIEW_BI_LEAF, &bmLeaf);
TREEVIEW_SetBitmapOffset(hTree, TREEVIEW_BI_PM, -21, -6);
TREEVIEW_SetOwnerDraw(hTree, _TREEVIEW_OwnerDraw);
TREEVIEW_SetBkColor(hTree, TREEVIEW_CI_SEL, USER_COLOR);
TREEVIEW_SetBkColor(hTree, TREEVIEW_CI_UNSEL, GUI_BLACK);
TREEVIEW_SetTextColor(hTree, TREEVIEW_CI_SEL, GUI_WHITE);
TREEVIEW_SetTextColor(hTree, TREEVIEW_CI_UNSEL, GUI_WHITE);
WIDGET_SetEffect(hTree, &WIDGET_Effect_None);
//
// Fill TREEVIEW
//
hNode = TREEVIEW_InsertItem(hTree, TREEVIEW_ITEM_TYPE_NODE, 0, 0, "Tree");
_FillNode(hTree, hNode, NUM_CHILD_NODES, NUM_CHILD_ITEMS, TREEVIEW_DEPTH, TREEVIEW_DEPTH, acBuffer, acBuffer);
TREEVIEW_ITEM_Expand(hNode);
WM_SetFocus(hTree);
while (1) {
GUI_Delay(100);
}
}
/*********************************************************************
*
* _FillNode
*
* Function description
* Recursive filling of node
*
* Parameters:
* hTree - obvious
* NumNodes - Number of child nodes to be created at each node
* NumLeaves - Number of leaves to be created at each node
* MaxDepth - Maximum depth (1.1.1.1.1.....)
* CurDepth - Current depth
* acBuffer - String to be used for TREEVIEW items
* p - Pointer into to string to be used for numbering
*
* Return value:
* 0 on success, 1 on error
*/
static int _FillNode(WM_HWIN hTree, TREEVIEW_ITEM_Handle hNode, int NumNodes, int NumLeaves, int MaxDepth, int CurDepth, char * acBuffer, char * p) {
TREEVIEW_ITEM_Handle hItem;
int i;
int Position;
hItem = 0;
*(p + 1) = 0;
*p = '0' - 1;
if (--CurDepth) {
//
// Create nodes
//
for (i = 0; i < NumNodes; i++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(1, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
_NumNodes++;
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
*(p + 1) = '.';
p += 2;
//
// Recursive call of 'this' function for each node
//
_FillNode(hTree, hNode, NumNodes, NumLeaves, MaxDepth, CurDepth, acBuffer, p);
p -= 2;
*(p + 1) = 0;
}
}
//
// Create leaves
//
for (i = 0; i < NumLeaves; i++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(0, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
_NumLeaves++;
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
}
return 0;
}
/*********************************************************************
*
* _FillNode
*
* Purpose:
* Recursive filling of node
*
* Parameters:
* hTree - obvious
* NumNodes - Number of child nodes to be created at each node
* NumLeaves - Number of leaves to be created at each node
* MaxDepth - Maximum depth (1.1.1.1.1.....)
* CurDepth - Current depth
* acBuffer - String to be used for TREEVIEW items
* p - Pointer into to string to be used for numbering
*
* Return value:
* 0 on success, 1 on error
*/
static int _FillNode(WM_HWIN hTree, TREEVIEW_ITEM_Handle hNode, int NumChildNodes, int NumChildItems, int MaxDepth, int Depth, char * p) {
static char acBuffer[(TREEVIEW_DEPTH << 1) + 1];
TREEVIEW_ITEM_Handle hItem = 0;
int i, j, Position;
if (p == NULL) {
p = acBuffer;
}
*(p + 1) = 0;
*p = '0' - 1;
if (--Depth) {
//
// Create nodes
//
for (i = 0; i < NumChildNodes; i++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(1, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
*(p + 1) = '.';
p += 2;
_FillNode(hTree, hNode, NumChildNodes, NumChildItems, MaxDepth, Depth, p);
p -= 2;
*(p + 1) = 0;
}
}
//
// Create leaves
//
for (j = 0; j < NumChildItems; j++) {
(*p)++;
Position = hItem ? TREEVIEW_INSERT_BELOW : TREEVIEW_INSERT_FIRST_CHILD;
hItem = TREEVIEW_ITEM_Create(0, acBuffer, 0);
if (hItem == 0) {
return 1; // Error
}
TREEVIEW_AttachItem(hTree, hItem, hNode, Position);
hNode = hItem;
}
return 0;
}
/*********************************************************************
*
* _InitTreeview
*
* Purpose:
* Adds some data to the treeview widget
*/
static int _InitTreeview(WM_HWIN hTree) {
TREEVIEW_ITEM_Handle hNode;
int r;
hNode = TREEVIEW_InsertItem(hTree, TREEVIEW_ITEM_TYPE_NODE, 0, 0, "Tree");
r = _FillNode(hTree, hNode, NUM_CHILD_NODES, NUM_CHILD_ITEMS, TREEVIEW_DEPTH, TREEVIEW_DEPTH, NULL);
if (r) {
//
// Error message
//
WM_DeleteWindow(hTree);
GUI_MessageBox("Error", "Not enough memory available!", 0);
return 1; // Error
}
TREEVIEW_SetAutoScrollH(hTree, 1);
TREEVIEW_SetAutoScrollV(hTree, 1);
TREEVIEW_ITEM_Expand(hNode);
return 0;
}
/*********************************************************************
*
* MainTask
*/
void MainTask(void) {
TREEVIEW_ITEM_Handle hNode;
WM_HWIN hTree;
int xSize;
int ySize;
int yPos;
int r;
int TimeStart;
int TimeUsed;
int ySizeText;
U32 BytesFree;
U32 BytesUsed;
char acBuffer[(TREEVIEW_DEPTH << 1) + 1];
char acNumNodes[30] = "Nodes: ";
char acNumLeaves[30] = "Leaves: ";
char acNumTotal[30] = "Total: ";
char acTimeUsed[30] = "Time: ";
char acBytesUsed[30] = "Memory: ";
//
// Initialize emWin
//
WM_SetCreateFlags(WM_CF_MEMDEV);
GUI_Init();
xSize = LCD_GetXSize();
ySize = LCD_GetYSize();
//
// Set defaults for background and widgets
//
WM_SetDesktopColor(GUI_BLACK);
SCROLLBAR_SetDefaultSkin(SCROLLBAR_SKIN_FLEX);
SCROLLBAR_SetDefaultWidth(20);
SCROLLBAR_SetThumbSizeMin(25);
TEXT_SetDefaultFont(GUI_FONT_6X8);
//
// Draw info message before creating the widgets
//
GUI_DrawGradientV(0, 0, xSize - 1, ySize - 1, GUI_BLUE, GUI_BLACK);
GUI_SetFont(GUI_FONT_20F_ASCII);
GUI_DispStringHCenterAt("Filling TREEVIEW widget...", xSize >> 1, ySize / 3);
GUI_X_Delay(1000);
//
// Create TREEVIEW
//
hTree = TREEVIEW_CreateEx(0, 0, xSize, ySize, WM_HBKWIN, WM_CF_SHOW, 0, GUI_ID_TREEVIEW0);
TREEVIEW_SetAutoScrollV(hTree, 1);//管理自动使用垂直滚动条。
TREEVIEW_SetSelMode(hTree, TREEVIEW_SELMODE_ROW);
//
// Fill TREEVIEW
//
hNode = TREEVIEW_InsertItem(hTree, TREEVIEW_ITEM_TYPE_NODE, 0, 0, "Tree");
BytesFree = GUI_ALLOC_GetNumFreeBytes();
TimeStart = GUI_GetTime();
r = _FillNode(hTree, hNode, NUM_CHILD_NODES, NUM_CHILD_ITEMS, TREEVIEW_DEPTH, TREEVIEW_DEPTH, acBuffer, acBuffer);
TimeUsed = GUI_GetTime() - TimeStart;
BytesUsed = BytesFree - GUI_ALLOC_GetNumFreeBytes();
if (r) {
//
// Error message
//
WM_DeleteWindow(hTree);
GUI_MessageBox("Error", "Not enough memory available!", 0);
} else {
//
// Show result
//
yPos = 20;
ySizeText = GUI_GetYDistOfFont( TEXT_GetDefaultFont()) + 5;
_MakeNumberText(hTree, xSize >> 1, &yPos, xSize >> 1, ySizeText, acNumNodes, _NumNodes);
_MakeNumberText(hTree, xSize >> 1, &yPos, xSize >> 1, ySizeText, acNumLeaves, _NumLeaves);
_MakeNumberText(hTree, xSize >> 1, &yPos, xSize >> 1, ySizeText, acNumTotal, _NumNodes + _NumLeaves);
_MakeNumberText(hTree, xSize >> 1, &yPos, xSize >> 1, ySizeText, acTimeUsed, TimeUsed);
_MakeNumberText(hTree, xSize >> 1, &yPos, xSize >> 1, ySizeText, acBytesUsed, BytesUsed);
WM_SetFocus(hTree);
}
while (1) {
GUI_Delay(100);
}
}
