我想创建一个 GtkWidget 类型的 10x20 数组。我想让它们中的每一个都成为一个 GtkEventBox,我将在其中附加一个标签。
我应该如何创建和使用 2D GtkWidget* 数组?
这是我迄今为止尝试过的:
//global variable:
GtkWidget *labelPlate[ROWS][COLUMNS];
...
...
inside the function that creates the table and attaches the event boxes to it
//my table, where the EventBoxes will be attached to
GtkWidget *finalPlateTable = gtk_table_new (10, 20, TRUE);
int i, j;
for(i = 0; i<ROWS; i++){
for(j=0 ; j<COLUMNS; j++){
//Make a char with the current float and create a label with it.
char finalString[14];
sprintf(finalString, "%.2f", plate[i][j]);
GtkWidget *label = gtk_label_new(finalString);;
//Labels cannot have bg color, so attach each label to an event box
/*HERE I GET SEG FAULT*/
labelPlate[i][j]=gtk_event_box_new();
//adding the label to my eventbox
gtk_container_add(GTK_CONTAINER(labelPlate[i][j]), label);
//Add the corresponding bg color to each event box
GdkColor color;
switch(scalePlate[i][j]){
...
...
break;
}
//coloring the event box with the corresponding background
gtk_widget_modify_bg ( GTK_WIDGET(labelPlate[i][j]), GTK_STATE_NORMAL, &color);
//attach the event box to the appropriate location of my table
gtk_table_attach_defaults (GTK_TABLE (finalPlateTable), labelPlate[i][j], j, j+1, i, i+1);
//show them!
gtk_widget_show(label);
gtk_widget_realize(labelPlate[i][j]);
}
}
//adding the table to my vertical box, and show both of them
gtk_box_pack_start(GTK_BOX (verticalBox), finalPlateTable, TRUE, TRUE, 10);
gtk_widget_show (finalPlateTable);
gtk_widget_show (verticalBox);
我想指出我对C相当陌生,我不知道如何使用malloc
(但我怀疑我现在应该使用它)。