STEMWIN 自定义控件demo 学习使用官方没有的控件带注释 -

#include "WM.h"
#include "DIALOG_Intern.h" /* Req. for Create indirect data structure */
#include "WIDGET.h"
#include
#include "..GUIIncludeGRAPH_Private.h"
#define DEMO_Widget_ID 0x34455854 /* DEMO_Widget */
#define DEMO_Widget_INIT_ID(p) p->DebugId = DEMO_Widget_ID
typedef struct {
WIDGET Widget;//第一项必须窗口控件WM管理器使用
GUI_COLOR aBkColor[2];//根据需要添加本控件的两项颜色值分别为上图的背景黑色和白色
GUI_COLOR RECT_Color;//上图外框的蓝色
WM_HMEM hpText;//未用到
WM_HMEM ahDrawObj[1];//未用到
int size_base;//中间最短一条的长度
GRAPH_PROPS Props;//盗用其他控件的颜色，绘外框的时候使用
uint16_t Sta_MAX;//控件的最大条数
uint16_t State;//当前显示的信息
#if GUI_DEBUG_LEVEL >= GUI_DEBUG_LEVEL_CHECK_ALL
int DebugId;
#endif
} DEMO_Widget_Obj;
GUI_HMEM Create_demowidget(int x0, int y0, int xsize, int ysize, WM_HWIN hParent, int WinFlags, int ExFlags, int Id);
void Set_demowidget_Sta(GUI_HMEM hObj,int state);
void Set_demowidget_Sta_MAX(GUI_HMEM hObj,int MAX);
void Set_demowidget_Base(GUI_HMEM hObj,int base);

复制代码

#include "demowidget.h"
//这个函数负责显示控件的外观主要是调用一下 GUI 2D 绘图函数或者有必要的话显示文本
void _Paint(DEMO_Widget_Obj *pObj,GUI_HMEM hObj,GUI_RECT * pRectInvalid)
{
GUI_RECT RectClient;
int i,size_x;
GUI_RECT rClient, rInside,Rect={0,0,0,0},Rect1={0,0,0,0},Rect2={0,0,0,0};
GUI_GetClientRect(&RectClient)；
rClient = RectClient;
Rect=rClient;
GUI_Clear();
GUI_SetBkColor(pObj->Props.aColor[1]);
GUI_SetColor(pObj->Props.aColor[2]);
GUI_DrawRectEx(&Rect);
GUI__ReduceRect(&Rect, &Rect, 1);
GUI_DrawRectEx(&Rect);
Rect=rClient;
GUI__ReduceRect(&rClient, &rClient, 3);
LCD_SetBkColor (pObj->aBkColor[0]);
LCD_SetColor (pObj->RECT_Color);
size_x=(rClient.x1-pObj->size_base+1)/2/pObj->Sta_MAX;
Rect.x0=rClient.x0+pObj->Sta_MAX*size_x;
Rect.x1=rClient.x1-pObj->Sta_MAX*size_x;
Rect.y1=(rClient.y1/2)+rClient.y1/(pObj->Sta_MAX*2+1)/2-1;
Rect.y0=(rClient.y1/2)-rClient.y1/(pObj->Sta_MAX*2+1)/2;
GUI__ReduceRect(&Rect1,&Rect,0);
GUI__ReduceRect(&Rect2,&Rect,0);
GUI_DrawRectEx(&Rect);
for(i=0;iSta_MAX;i++)
{
Rect1.x0+=-size_x;
Rect1.x1+=+size_x;
Rect1.y0+=-rClient.y1/(pObj->Sta_MAX)/2;
Rect1.y1+=-rClient.y1/(pObj->Sta_MAX)/2;
Rect2.x0+=-size_x;
Rect2.x1+=+size_x;
Rect2.y0+=+rClient.y1/(pObj->Sta_MAX)/2;
Rect2.y1+=+rClient.y1/(pObj->Sta_MAX)/2;
GUI_DrawRectEx(&Rect1);
GUI_DrawRectEx(&Rect2);
}
LCD_SetColor(GUI_GREEN);
LCD_SetBkColor (pObj->aBkColor[0]);
GUI__ReduceRect(&Rect1,&Rect,1);
GUI__ReduceRect(&Rect2,&Rect,1);
GUI_FillRectEx(&Rect1);
for(i=0;iState;i++)
{
LCD_SetColor((255-((255/pObj->Sta_MAX)*i)<<8)|((255/pObj->Sta_MAX*i)));
Rect1.x0+=-size_x;
Rect1.x1+=+size_x;
Rect1.y0+=-rClient.y1/(pObj->Sta_MAX)/2;
Rect1.y1+=-rClient.y1/(pObj->Sta_MAX)/2;
Rect2.x0+=-size_x;
Rect2.x1+=+size_x;
Rect2.y0+=+rClient.y1/(pObj->Sta_MAX)/2;
Rect2.y1+=+rClient.y1/(pObj->Sta_MAX)/2;
GUI_FillRectEx(&Rect1);
GUI_FillRectEx(&Rect2);
}
LCD_SetColor(pObj->aBkColor[1]);
for(;iSta_MAX;i++)
{
Rect1.x0+=-size_x;
Rect1.x1+=+size_x;
Rect1.y0+=-rClient.y1/(pObj->Sta_MAX)/2;
Rect1.y1+=-rClient.y1/(pObj->Sta_MAX)/2;
Rect2.x0+=-size_x;
Rect2.x1+=+size_x;
Rect2.y0+=+rClient.y1/(pObj->Sta_MAX)/2;
Rect2.y1+=+rClient.y1/(pObj->Sta_MAX)/2;
GUI_FillRectEx(&Rect1);
GUI_FillRectEx(&Rect2);
}
}
static void _Delete(DEMO_Widget_Obj* pObj) {
GUI_ALLOC_FreePtrArray(pObj->ahDrawObj, GUI_COUNTOF(pObj->ahDrawObj));
}
void DEMO_Widget_callback(WM_MESSAGE*pMsg)
{
GUI_HMEM hObj=pMsg->hWin;
DEMO_Widget_Obj * pObj;
if (WIDGET_HandleActive(hObj, pMsg) == 0) {
return;
}
pObj= (DEMO_Widget_Obj *)GUI_ALLOC_h2p(hObj);
switch(pMsg->MsgId)
{
case WM_PAINT://响应重绘命令，显示自己 WM管理器在需要显示的时候自动发送。
_Paint(pObj, hObj,(GUI_RECT*)pMsg->Data.p);
return;
case WM_DELETE:
_Delete(pObj);
break; /* No return here ... WM_DefaultProc needs to be called */
//删除控件这里不能return 因为需要WM_DefaultProc 迭代删除子控件
}
WM_DefaultProc(pMsg);
}
GUI_HMEM Create_demowidget(int x0, int y0, int xsize, int ysize, WM_HWIN hParent, int WinFlags, int ExFlags, int Id)
{
GUI_HMEM hObj;
GUI_USE_PARA(ExFlags);
/* Create the window */
WM_LOCK();
hObj = WM_CreateWindowAsChild(x0, y0, xsize, ysize, hParent, WinFlags, DEMO_Widget_callback,
sizeof(DEMO_Widget_Obj) - sizeof(WM_Obj));
//创建一个Window 小工具的灵魂，靠它小工具才受WM管理器管理各种WM管理器的功能才得以使用
//这里需要注意设置了N个字节的 userdata ，userdata 和创建的Window 实际使用的内存是连续的
//
if(hObj)
{
DEMO_Widget_Obj * pObj = (DEMO_Widget_Obj *)GUI_ALLOC_h2p(hObj);
//将Window 句柄转换为DEMO_Widget_Obj 类型的指针这里的转换关系需要仔细思考！
//上面提到userdata 和创建的Window 实际使用的内存是连续的实际上 Window 实际使用的内存就是 WIDGET
//这也是为什么一开始说 DEMO_Widget_Obj 的第一项必须是 WIDGET
WIDGET__Init(&pObj->Widget, Id, WIDGET_STATE_FOCUSSABLE);
DEMO_Widget_INIT_ID(pObj);//下面是设置一些默认属性
pObj->aBkColor[0]=GUI_BLACK;
pObj->aBkColor[1]=GUI_WHITE;
pObj->RECT_Color=GUI_BLUE;
pObj->Sta_MAX=40;
pObj->State=0;
pObj->size_base=5;
pObj->State=0;
pObj->Props = GRAPH__DefaultProps;
}
else
{
GUI_DEBUG_ERROROUT_IF(hObj==0, "DEMO_Widget_Create failed")
}
WM_UNLOCK();
return hObj;
}
//下面的函数都由应用程序运行过程中调用，
//按照格式改属性然后使用WM_InvalidateWindow 告诉 WM管理器控件需要重绘就OK了
void Set_demowidget_Sta(GUI_HMEM hObj,int state)
{
DEMO_Widget_Obj * pObj;
if(hObj)
{
pObj= (DEMO_Widget_Obj *)GUI_ALLOC_h2p(hObj); /* Don't use use WIDGET_H2P because WIDGET_INIT_ID() has not be called at this point */
}
else
{
return;
}
WM_LOCK();
if(state<=pObj->Sta_MAX)
pObj->State=state;
WM_InvalidateWindow(hObj);
WM_UNLOCK();
}
void Set_demowidget_Sta_MAX(GUI_HMEM hObj,int MAX)
{
DEMO_Widget_Obj * pObj;
if(hObj)
{
pObj= (DEMO_Widget_Obj *)GUI_ALLOC_h2p(hObj); /* Don't use use WIDGET_H2P because WIDGET_INIT_ID() has not be called at this point */
}
else
{
return;
}
WM_LOCK();
pObj->Sta_MAX=MAX;
WM_InvalidateWindow(hObj);
WM_UNLOCK();
}
void Set_demowidget_Base(GUI_HMEM hObj,int base)
{
DEMO_Widget_Obj * pObj;
if(hObj)
{
pObj= (DEMO_Widget_Obj *)GUI_ALLOC_h2p(hObj); /* Don't use use WIDGET_H2P because WIDGET_INIT_ID() has not be called at this point */
}
else
{
return;
}
WM_LOCK();
pObj->size_base=base;
WM_InvalidateWindow(hObj);
WM_UNLOCK();
}

复制代码

TREEVIEW_ITEM_Handle Item_get_next(TREEVIEW_ITEM_Handle hItem)//用到辅助函数
{
TREEVIEW_ITEM_OBJ *itemobj;
if(hItem)
{
itemobj=(TREEVIEW_ITEM_OBJ*)GUI_ALLOC_h2p(hItem);
return itemobj->hNext;
}
return 0;
}
void _cbtree(WM_MESSAGE * pMsg)
{
int Id, NCode;
TREEVIEW_ITEM_Handle hItem,fristitem;
char buf[20];
int num[2]={1,2000};
TREEVIEW_ITEM_INFO info;
switch (pMsg->MsgId)
{
case WM_KEY://拦截按键消息
{
int pressed;
pressed=((WM_KEY_INFO*)(pMsg->Data.p))->PressedCnt;
NCode = ((WM_KEY_INFO*)(pMsg->Data.p))->Key;
switch(NCode)
{
default:
if(pressed)
{
if (NCode==GUI_KEY_RIGHT)// 树默认right 键打开节点，再打开前添加节点
{
hItem=TREEVIEW_GetSel(pMsg->hWin);
TREEVIEW_ITEM_GetInfo(hItem,&info);
if(info.IsNode)
{
fristitem=TREEVIEW_GetItem(pMsg->hWin,hItem,TREEVIEW_GET_FIRST_CHILD);
TREEVIEW_ITEM_GetText(fristitem,(uint8_t*)buf,20);
if(strcmp("space",buf)==0)//比较是否为占位符
{
TREEVIEW_ITEM_Delete(fristitem);
tree_add_filelist(num,0,pMsg->hWin,hItem);//这个函数将遍历磁盘文件添加到树指定节点
}
}
}
}
else
{
((WM_KEY_INFO*)(pMsg->Data.p))->PressedCnt=1;
TREEVIEW_Callback(pMsg);
}
break;
}
}
break;
case WM_TOUCH:// 这个是处理触摸事件比较麻烦一点主要是获得触摸的地方，遍历TREE 取得被点击的节点判断是否为节点然后的操作就和按键一样了
{
TREEVIEW_ITEM_Handle hNode;
GUI_PID_STATE* pState;
TREEVIEW_OBJ *treeobj;
pState = (GUI_PID_STATE*)pMsg->Data.p;
treeobj = (TREEVIEW_OBJ*)GUI_ALLOC_h2p(pMsg->hWin);
if(pState->y/treeobj->Props.MinItemHeight[tr]NumVisItems+1)
{
hNode=TREEVIEW_GetItem(pMsg->hWin,0,TREEVIEW_GET_FIRST);
if(hNode)
{
int num=pState->y/treeobj->Props.MinItemHeight +((pState->y%treeobj->Props.MinItemHeight)>0 ?1:0)-1;//计算被点击的是第几个节点
if(treeobj->ScrollStateV.v>0)
num+=treeobj->ScrollStateV.v;
while(num--)//这个while 遍历得到被点击的节点handle
{
TREEVIEW_ITEM_GetInfo(hNode,&info);
if(info.IsNode)
{
if(info.IsExpanded)
{
hNode=TREEVIEW_GetItem(pMsg->hWin,hNode,TREEVIEW_GET_FIRST_CHILD);
}
else
{
hNode=TREEVIEW_GetItem(pMsg->hWin,hNode,TREEVIEW_GET_NEXT_SIBLING);
}
}
else
{
hNode=Item_get_next(hNode);
}
}
}
TREEVIEW_ITEM_GetInfo(hNode,&info);
if(info.IsExpanded==0)
{
if(info.IsNode&&(pState->x<((info.Level+1)*treeobj->Props.Indent-treeobj->ScrollStateH.v))&&
pState->x>((info.Level)*treeobj->Props.Indent-treeobj->ScrollStateH.v)
)
{
fristitem=TREEVIEW_GetItem(pMsg->hWin,hNode,TREEVIEW_GET_FIRST_CHILD);
TREEVIEW_ITEM_GetText(fristitem,(uint8_t*)buf,20);
if(strcmp("space",buf)==0)
{
TREEVIEW_ITEM_Delete(fristitem);
tree_add_filelist(num,0,pMsg->hWin,hNode);
}
}
}
else
{
}
TREEVIEW_Callback(pMsg);
}
}
break;
default:
TREEVIEW_Callback(pMsg);
break;
}
}

复制代码