LISTVIEW - Usage (Sample)
| LISTVIEW_Usage.c | |
|---|---|
 | |
| File(s) required |
|
| Runs in simulation | Yes |
| Runs on target | Yes |
| Download | LISTVIEW_Usage.c |
This sample demonstrates the usage of a LISTVIEW widget.
Demo
Code
/*********************************************************************
* SEGGER Microcontroller GmbH *
* Solutions for real time microcontroller applications *
**********************************************************************
* *
* (c) 1996 - 2022 SEGGER Microcontroller GmbH *
* *
* Internet: www.segger.com Support: support@segger.com *
* *
**********************************************************************
** emWin V6.24 - Graphical user interface for embedded applications **
emWin is protected by international copyright laws. Knowledge of the
source code may not be used to write a similar product. This file may
only be used in accordance with a license and should not be re-
distributed in any way. We appreciate your understanding and fairness.
----------------------------------------------------------------------
File : LISTVIEW_Usage.c
Purpose : Sample that demonstrates the usage of LISTVIEW widgets
in emWin.
Requirements: WindowManager - (x)
MemoryDevices - ( )
AntiAliasing - ( )
VNC-Server - ( )
PNG-Library - ( )
TrueTypeFonts - ( )
Wiki link : https://wiki.segger.com/LISTVIEW_-_Usage_(Sample)
---------------------------END-OF-HEADER------------------------------
*/
#include "DIALOG.h"
#include <stdio.h>
#include <stdlib.h>
/*********************************************************************
*
* Defines
*
**********************************************************************
*/
#define ID_COLUMN_EMP_NO 0
#define ID_COLUMN_LAST_NAME 1
#define ID_COLUMN_FIRST_NAME 2
#define ID_COLUMN_EXT 3
#define ID_COLUMN_TITLE 4
#define ID_COLUMN_EMAIL 5
/*********************************************************************
*
* Static data
*
**********************************************************************
*/
static const char * _acContent[][6] = {
{ "1002", "Murphy", "Diane", "x5800", "President", "dmurphy@classicmodelcars.com" },
{ "1056", "Patterson", "Mary", "x4611", "VP Sales", "mpatterso@classicmodelcars.com" },
{ "1076", "Firrelli", "Jeff", "x9273", "VP Marketing", "jfirrelli@classicmodelcars.com" },
{ "1088", "Patterson", "William", "x4871", "Sales Manager (APAC)", "wpatterson@classicmodelcars.com" },
{ "1102", "Bondur", "Gerard", "x5408", "Sale Manager (EMEA)", "gbondur@classicmodelcars.com" },
{ "1143", "Bow", "Anthony", "x5428", "Sales Manager (NA)", "abow@classicmodelcars.com" },
{ "1165", "Jennings", "Leslie", "x3291", "Sales Rep", "ljennings@classicmodelcars.com" },
{ "1166", "Thompson", "Leslie", "x4065", "Sales Rep", "lthompson@classicmodelcars.com" },
{ "1188", "Firrelli", "Julie", "x2173", "Sales Rep", "jfirrelli@classicmodelcars.com" },
{ "1216", "Patterson", "Steve", "x4334", "Sales Rep", "spatterson@classicmodelcars.com" },
{ "1286", "Tseng", "Foon Yue", "x2248", "Sales Rep", "ftseng@classicmodelcars.com" },
};
/*********************************************************************
*
* Static code
*
**********************************************************************
*/
/*********************************************************************
*
* _cbBk
*/
static void _cbBk(WM_MESSAGE * pMsg) {
int Id, NCode;
WM_HWIN hListview;
int Sel;
char acBuffer [128];
char acFirstName[32];
char acLastName [32];
switch (pMsg->MsgId) {
case WM_PAINT:
GUI_SetBkColor(GUI_WHITE);
GUI_Clear();
GUI_SetColor(GUI_BLACK);
//
// Display selected item
//
hListview = WM_GetDialogItem(WM_HBKWIN, GUI_ID_LISTVIEW0);
Sel = LISTVIEW_GetSel(hListview);
if (Sel != -1) {
sprintf(acBuffer, "Selected row: %d", Sel);
GUI_DispStringAt(acBuffer, 10, 140);
LISTVIEW_GetItemTextSorted(hListview, ID_COLUMN_FIRST_NAME, Sel, acFirstName, sizeof(acFirstName));
LISTVIEW_GetItemTextSorted(hListview, ID_COLUMN_LAST_NAME, Sel, acLastName, sizeof(acLastName));
sprintf(acBuffer, "Selected employee name: %s %s", acFirstName, acLastName);
GUI_DispStringAt(acBuffer, 10, 160);
}
//
// No selection
//
else {
sprintf(acBuffer, "Selected row: none.");
GUI_DispStringAt(acBuffer, 10, 140);
}
break;
case WM_NOTIFY_PARENT:
Id = WM_GetId(pMsg->hWinSrc);
NCode = pMsg->Data.v;
switch (Id) {
case GUI_ID_LISTVIEW0:
switch (NCode) {
case WM_NOTIFICATION_SEL_CHANGED:
//
// Display new selection in this window when LISTVIEW selection has changed.
//
WM_InvalidateWindow(pMsg->hWin);
break;
}
break;
}
break;
default:
WM_DefaultProc(pMsg);
}
}
/*********************************************************************
*
* _CompareExtension
*/
static int _CompareExtension(const void * p0, const void * p1) {
const char * ps[2];
int v[2];
int i;
ps[0] = (const char *)p0 + 1; // Move pointer by 1 to ignore the 'x'
ps[1] = (const char *)p1 + 1;
//
// Parse to int
//
for (i = 0; i < 2; i++) {
v[i] = atoi(ps[i]);
if (v[i] == 0) {
return 0;
}
}
//
// Return comparison result
//
if (v[0] > v[1]) {
return -1;
} else if (v[0] < v[1]) {
return 1;
} else {
return 0;
}
}
/*********************************************************************
*
* Public code
*
**********************************************************************
*/
/*********************************************************************
*
* MainTask
*/
void MainTask(void) {
LISTVIEW_Handle hListview;
int i;
//
// Init GUI
//
GUI_Init();
//
// Enable multi-buffering
//
WM_MULTIBUF_Enable(1);
//
// Set callback to background window to receive LISTVIEW notifications
//
WM_SetCallback(WM_HBKWIN, _cbBk);
//
// Create listview widget
//
hListview = LISTVIEW_CreateEx(10, 10, 250, 120, WM_HBKWIN, WM_CF_SHOW, 0, GUI_ID_LISTVIEW0);
//
// Add columns to listview
//
LISTVIEW_AddColumn(hListview, 45, "Emp. Nr.", GUI_TA_LEFT);
LISTVIEW_AddColumn(hListview, 60, "Last Name", GUI_TA_LEFT);
LISTVIEW_AddColumn(hListview, 60, "First Name", GUI_TA_LEFT);
LISTVIEW_AddColumn(hListview, 40, "Ext.", GUI_TA_LEFT);
LISTVIEW_AddColumn(hListview, 110, "Title", GUI_TA_LEFT);
LISTVIEW_AddColumn(hListview, 180, "Email", GUI_TA_LEFT);
//
// Add rows to listview
//
for (i = 0; i < GUI_COUNTOF(_acContent); i++) {
LISTVIEW_AddRow(hListview, _acContent[i]);
}
//
// Set compare functions
//
LISTVIEW_SetCompareFunc(hListview, 0, LISTVIEW_CompareDec);
LISTVIEW_SetCompareFunc(hListview, 1, LISTVIEW_CompareText);
LISTVIEW_SetCompareFunc(hListview, 2, LISTVIEW_CompareText);
LISTVIEW_SetCompareFunc(hListview, 3, _CompareExtension);
LISTVIEW_SetCompareFunc(hListview, 4, LISTVIEW_CompareText);
LISTVIEW_SetCompareFunc(hListview, 5, LISTVIEW_CompareText);
//
// Enable sorting
//
LISTVIEW_EnableSort(hListview);
//
// Enable motion scrolling
//
LISTVIEW_EnableMotion(hListview, LISTVIEW_CF_MOTION_H | LISTVIEW_CF_MOTION_V);
while (1) {
GUI_Delay(100);
}
}
/*************************** End of file ****************************/
