xml messaging
I'm think about incorporating a communications feature into an app and I want to send xml data between my gtk/glib network connected clients. If you know of any convenient glib features or other libraries that are coded in a similar or compatible style I would appreciate the suggestion. Thanks, Kim ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: custom treeview cell renderer advice
Sorry about the visuals. Here is the question again with better spacing of example data. I would like to write a custom cell renderer for a treeview and would appreciate any advice you may offer. I want to be able to hide any repeats cells that follow one another, with a few extra features. If standard rendering of sample data in a treeview of fruit classifications shows: Color| Size| Variety Red | 1 | a Red | 1 | b Green| 1 | a Green| 2 | a Green| 2 | b Yellow | 1 | a then my new cell renderer would render it as: Color| Size | Variety Red | 1 | a || b Green| 1 | a | 2 | a || b Yellow | 1 | a But then if the user scrolls down one row it would look like: Color| Size | Variety Red | 1 | b Green| 1 | a | 2 | a || b Yellow | 1 | a So the very top row always shows the the value in the list store. Subsequent rows hide duplicate cells that are the same as cells immediately above, unless the column to the left changes. It has the effect of de-cluttering a table full of sorted/grouped data. It is essentially what most database report writers (crystal & access) do with a "hide duplicates" option . My initial thoughts are that I would have to maintain a few extra columns based on: (1) what row is at the top of the treeview, (2) has the cell to the left of the cell being considered, changed from last row to this row, and (3) is the cell above a duplicate of the cell being considered. Ideas and considered opinions would be much appreciated. Thanks Kim Kim Adil wrote: > I would like to write a custom cell renderer for a treeview and would > appreciate any advice you may offer. I want to be able to hide any > repeats cells that follow one another, with a few extra features. If > standard rendering of sample data in a treeview of fruit classifications > shows: > > Color| Size | Variety > Red | 1 | a > Red | 1 | b > Green| 1 | a > Green| 2 | a > Green| 2 | b > Yellow | 1 | a > > > then my new cell renderer would render it as: > > Color| Size | Variety > Red | 1 | a > | | b > Green| 1 | a > | 2 | a > | | b > Yellow | 1 | a > > But then if the user scrolls down one cell it would look like: > > Color| Size | Variety > Red | 1 | b > Green| 1 | a > | 2 | a > | | b > Yellow | 1 | a > > So the very top row always shows the the value in the list store. > Subsequent rows hide duplicate cells that are the same as cells > immediately above, unless the column to the left changes. It has the > effect of de-cluttering a table full of sorted/grouped data. > > It is essentially what most database report writers (crystal & access) > do with a "hide duplicates" option > . > My initial thoughts are that I would have to maintain a few extra > columns based on: > (1) what row is at the top of the treeview, > (2) has the cell to the left of the cell being considered, changed from > last row to this row, and > (3) is the cell above a duplicate of the cell being considered. > > Ideas and considered opinions would be much appreciated. > > Thanks Kim > ___ > gtk-app-devel-list mailing list > gtk-app-devel-list@gnome.org > http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list > > ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
custom treeview cell renderer advice
I would like to write a custom cell renderer for a treeview and would appreciate any advice you may offer. I want to be able to hide any repeats cells that follow one another, with a few extra features. If standard rendering of sample data in a treeview of fruit classifications shows: Color| Size | Variety Red | 1 | a Red | 1 | b Green| 1 | a Green| 2 | a Green| 2 | b Yellow | 1 | a then my new cell renderer would render it as: Color| Size | Variety Red | 1 | a | | b Green| 1 | a | 2 | a | | b Yellow | 1 | a But then if the user scrolls down one cell it would look like: Color| Size | Variety Red | 1 | b Green| 1 | a | 2 | a | | b Yellow | 1 | a So the very top row always shows the the value in the list store. Subsequent rows hide duplicate cells that are the same as cells immediately above, unless the column to the left changes. It has the effect of de-cluttering a table full of sorted/grouped data. It is essentially what most database report writers (crystal & access) do with a "hide duplicates" option . My initial thoughts are that I would have to maintain a few extra columns based on: (1) what row is at the top of the treeview, (2) has the cell to the left of the cell being considered, changed from last row to this row, and (3) is the cell above a duplicate of the cell being considered. Ideas and considered opinions would be much appreciated. Thanks Kim ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
Re: WinXP & MSSQL & C & GTK+
Alf,
Here is the code of includes, and procedures that I use in my gtk
application compiled on linux, xp,98 and 2000. Works well 24/7 for 2
years. code is ugly but working. Database is irrelevant, I have used it
with access, sqlserver, postgresql, and mysql sucessfully. This code
runs in production with a sqlserver database. I use dev-cpp in windows
and anjuta in linux.
I do have some code in another program that interrogates failed calls
and returns debugging info so you can fed it back through a dialog to
the user. I can dig it up and send it through next week.
You might find variable names to be suspiciously similar to various
tutorial examples around the net. Cut and paste programming I'm afraid.
I included the variable "button" in the procedure call so I could use a
gtk_timeout to periodically run the query.
Regards,
Kim
#ifdef HAVE_CONFIG_H
# include
#endif
#include
#include "callbacks.h"
#include "interface.h"
#include "support.h"
#include "callbacks.h"
#include "interface.h"
#include "support.h"
#include "stdio.h"
#include "windows.h"
#include "stdio.h"
#include "sql.h"
#include "SQLEXT.H"
#include
#include
.
.
.
int odbccall1(GtkWidget *button)
{
HENV henv = NULL;
HDBC hdbc1 = NULL;
HSTMT hstmt1 = NULL;
UCHAR szDSN[SQL_MAX_DSN_LENGTH] =
"mydsn";// Data
Source Name buffer
UCHAR szUID[10] = "MyUsername"; // User ID buffer
UCHAR szPasswd[10] = "MyPassword"; // Password
buffer
UCHAR szSqlStr[] = "SELECT truck, loader FROM RowQuery";
UCHAR szTruck[8]; // Machine name buffer
SDWORD cbTruck;
UCHAR szLoader[20];// Model buffer bytes
recieved
SDWORD cbLoader;
UCHAR szMachNm[8]; // Machine name buffer
SDWORD cbMachNm;
UCHAR szActId[20];// Model buffer bytes
recieved
SDWORD cbActId;
UCHAR szModelDs[30];// Activity buffer
SDWORD cbModelDs;
UCHAR szOpNm[30];// CircuitNo
SDWORD cbOpNm;
UCHAR szActivity[50]; // Model buffer
SDWORD cbActivity;
UCHAR szGpsZone[50]; // Model buffer
SDWORD cbGpsZone;
UCHAR szBCM[10]; // Model buffer
SDWORD cbBCM;
UCHAR szSG[10]; // Model buffer
SDWORD cbSG;
UCHAR szShCycles[30]; // Model buffer
SDWORD cbShCycles;
UCHAR szassign_locn_1[10]; // Model buffer
SDWORD cbassign_locn_1;
UCHAR szassign_locn_2[10]; // Model buffer
SDWORD cbassign_locn_2;
UCHAR szis_to_loader[10]; // Model buffer
SDWORD cbis_to_loader;
UCHAR szhaulpath_perct[10]; // Model buffer
SDWORD cbhaulpath_perct;
UCHAR szis_on_circuit[10]; // Model buffer
SDWORD cbis_on_circuit;
UCHAR szloader_loading[10]; // Model buffer
SDWORD cbloader_loading;
UCHAR sztelem_status[10]; // Model buffer
SDWORD cbtelem_status;
double tmp=0;
gchar message[100];
int i,k,j,trucks;
RETCODE retcode;
GtkWidget *w;
w=lookup_widget(button,"label1");
if(strcmp(odbccallstatus,"active")==0)
{
printf("odbc call alreamdy in progress");
return(1);
}
sprintf(odbccallstatus,"active");
retcode = SQLAllocHandle (SQL_HANDLE_ENV, NULL, &henv); //
Allocate
the ODBC Environment and save handle.
if((retcode != SQL_SUCCESS)&&( retcode !=
SQL_SUCCESS_WITH_INFO))
{
// fprintf(debugLog,"odbc call failed 1 to allocate
handle");
sprintf(odbccallstatus,"inactive");
return(2);
}
retcode = SQLSetEnvAttr(henv, SQL_ATTR_ODBC_VERSION,(SQLPOINTER)
SQL_OV_ODBC3, SQL_IS_INTEGER); // Let ODBC know this is an ODBC 3.0
application.
if((retcode != SQL_SUCCESS)&&( retcode !=
SQL_SUCCESS_WITH_INFO))
{
// fprintf(debugLog,"odbc call failed 2 to set version");
sprintf(odbccallstatus,"inactive");
return(3);
}
retcode = SQLAllocHandle(SQL_HANDLE_DBC, henv, &hdbc1); //
Allocate
an ODBC connection and connect.
if((retcode != SQL_SUCCESS)&&( retcode !=
SQL_SUCCESS_WITH_INFO))
{
// fprintf(debugLog,"odbc call failed 3 to allocate a
connection");
sprintf(odbccallstatus,"inactive");
Gtk treeview use with large data sources
I have been searching for some time now to figure out how to approach using gtk treeview ( with a list model) with a sql database. I am using odbc on multiple platforms , hence gnomedb is not appropriate. Ideally the scrollwindow will behave as per using the standard list model. My questions: (1) should I write a custom list model that I can connect an odbc dsn & query to the treeview (2) should I disect gnome-db to find out the professionals approach it (3) should I give up and page the resultset into pages of 500 row that can be scrolled easily without Appreciate any sensible ideas Thanks Kim ___ gtk-app-devel-list mailing list gtk-app-devel-list@gnome.org http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
garray beginner problem
I am trying to figure out how to use GArray containers. This gives me
rubbish in the printf output. I think it relates to how I am accessing
the data nce it is in the array rather than what is stored in the array.
Any comments and ideas would be appreciated.
GArray *garray;
garray = g_array_new (FALSE, FALSE, sizeof (Machine));
for (i = 1; i < 1; i++){
Machine *newMach = machine_new(i,"trd11","d11","joe");
g_array_append_val (garray, newMach);
}
for (i = 2; i < 5000; i++){
Machine *u=&(g_array_index (garray, Machine, i));
printf("%s\n",u->machine_name);
}
g_array_free (garray, TRUE);
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
gobjects, glists and arrays beginners question
I have written a fairly comprehensive industrial display program, and
would like to rewrite version 2 in a better way. In version 1 I used
arrays of structs to manage various portions of the data, for example:
struct machine{
gint machineNumber;
gchar machineName[30];
gchar model[30];
gchar operator[30];
gint activityNumber;
gint activity[30];
gint alarmLevel;
};
struct machine machineArray[100],ODBCmachineArray[100];
I would like to do a "better" job by using some type of dynamic memory
management to make the application more flexible, ie able to handle a
variable number of machines. My expertise is very limited in this area
(sorry mechanical engineer trying to do software dev) and I would
appreciate any advice on how to use gobject, glist, or any preferred
approach for this sort of application.
Thanks,
Kim
___
gtk-app-devel-list mailing list
gtk-app-devel-list@gnome.org
http://mail.gnome.org/mailman/listinfo/gtk-app-devel-list
