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WindowDepth.bproj
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WindowDepth.m
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1995-06-12
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#import "WindowDepth.h"
#import "MyNXBrowserCell.h"
#import "common.h"
#define MAX_LINE_LEN 2048 // Maximum length of one preferences entry
/* Used to store temporary information */
typedef struct {
NXAtom owner; // The name of the application
int value; // The WindowDepthLimit
BOOL test; // YES if using Test prefix
} appInfo;
/* Names used in defaults database (non-test mode) */
static char *defaultnames[] = {
"TwoBitGray",
"EightBitGray",
"TwelveBitRGB",
"TwentyFourBitRGB"
};
/* Names used in defaults database (test mode) */
static char *defaulttestnames[] = {
"TestTwoBitGray",
"TestEightBitGray",
"TestTwelveBitRGB",
"TestTwentyFourBitRGB"
};
@interface WindowDepth(Private)
- setBrowserCell:(appInfo *)set withMatrix:matrix atRow:(int)row;
@end
@implementation WindowDepth(Private)
/*=========================================================================
* NAME : setBrowserCell:withMatrix:
* DESCRIPTION : Insert a new cell in the browser.
*=========================================================================*/
- setBrowserCell:(appInfo *)set withMatrix:matrix atRow:(int)row
{
id cell;
[matrix addRow];
cell = [matrix cellAt:row :0];
[cell setStringValue:set->owner];
[cell setTag:row];
[cell setLoaded:YES];
[cell setLeaf:YES];
[cell setOwner:set->owner];
[cell setDepth:set->value];
[cell setTestMode:set->test];
return self;
}
@end
@implementation WindowDepth
/*=========================================================================
* NAME : + new
* DESCRIPTION : Called first time this section's button is clicked.
*=========================================================================*/
+ new
{
self = [super new];
if (![NXApp loadNibForLayout: "WindowDepth" owner: self])
return nil;
// 'window' is an interface builder outlet.
view = [window contentView]; // 'view' MUST be initialized
[view removeFromSuperview];
[window setContentView: 0]; // Don't need the window for anything
[window free]; // So free it.
// When multiple items (or none) are selected, no radio button is set
[appRadio setEmptySelectionEnabled:YES];
[appRadio clearSelectedCell];
// Browser uses a custom Cell
[browser setCellClass:[MyNXBrowserCell class]];
return self;
}
/*=========================================================================
* NAME : willSelect:
* DESCRIPTION : Before the view is added via addSubview.
*=========================================================================*/
- willSelect: sender
{
return self;
}
/*=========================================================================
* NAME : didSelect:
* DESCRIPTION : After the view is added via addSubview.
*=========================================================================*/
- didSelect: sender
{
// Enable relevant menu items
[NXApp enableEdit:COPY_ITEM];
[NXApp enableWindow:CLOSE_ITEM];
// Rebuild the list of apps and preferences
[self rescanPrefs:self];
return self;
}
/*=========================================================================
* NAME : willUnselect:
* DESCRIPTION : Before removeFromSuperview
*=========================================================================*/
- willUnselect: sender
{
// Make sure that we aren't editing any text fields.
[[NXApp appWindow] endEditingFor:self];
return self;
}
/*=========================================================================
* NAME : didUnselect:
* DESCRIPTION : Before removeFromSuperview
*=========================================================================*/
- didUnselect: sender
{
// Hide our info panel
[infoPanel orderOut:self];
// Disable all Edit and Window menu items
[NXApp enableEdit: NO];
[NXApp enableWindow: NO];
return self;
}
/*=========================================================================
* NAME : didHide:
* DESCRIPTION : Application was just hidden.
*=========================================================================*/
- didHide: sender
{
return self;
}
/*=========================================================================
* NAME : didUnhide:
* DESCRIPTION : Application was just unhidden.
*=========================================================================*/
- didUnhide: sender
{
return self;
}
/*=========================================================================
* NAME : rescanPrefs:
* DESCRIPTION : Rescan the user's preferences.
*=========================================================================*/
- rescanPrefs:sender
{
// Cause the browser to reload
[browser loadColumnZero];
return self;
}
/*=========================================================================
* NAME : itemSelected:
* DESCRIPTION : Target of NXBrowser.
*=========================================================================*/
- itemSelected:sender
{
id matrix;
List *aList;
id cell;
// Get a list of all the selected cells in the browser
matrix = [browser matrixInColumn:0];
aList = [[List alloc] init];
[matrix getSelectedCells:aList];
// Set the radio button and switch to match the selection
if ([aList count] == 0) {
[appRadio clearSelectedCell];
[appRadio display];
[appSwitch setState:0];
[appRadio setEnabled:NO];
[appSwitch setEnabled:NO];
} else if ([aList count] == 1) {
cell = [aList objectAt:0];
[appRadio selectCellWithTag:[cell depth]];
[appSwitch setState:[cell testMode]];
[appRadio setEnabled:YES];
[appSwitch setEnabled:YES];
} else {
if (![appRadio isEnabled]) {
[appRadio setEnabled:YES];
[appSwitch setEnabled:YES];
}
[appRadio clearSelectedCell];
[appRadio display];
[appSwitch setState:0];
}
[aList free];
return self;
}
/*=========================================================================
* NAME : browser:fillMatrix:inColumn:
* DESCRIPTION : Delegate message from browser requesting a reload.
*=========================================================================*/
- (int)browser:sender fillMatrix:matrix inColumn:(int)column
{
appInfo set;
FILE *fp;
char *line;
char *owner, *variable, *value;
NXAtom newOwner, prevOwner;
int i;
int globalSetting = USE_DEFAULT;
BOOL globalTestSetting = NO;
int count;
// Call the 'dread' command as a subprocess
fp = popen("dread -l | sort -", "r");
if (!fp) {
NXLogError("WindowDepth.preferences: unable to popen(\"dread -l\")\n");
NXBeep();
return 0;
}
// Get ready to read, erase previous information
line = malloc(MAX_LINE_LEN+1);
prevOwner = NULL;
set.owner = NULL;
count = 0;
// Process the subprocess output, line by line
while (fgets(line, MAX_LINE_LEN, fp)) {
// Isolate the first two fields
if (!(owner = strtok(line, " \"\n\t"))) {
continue;
}
if (!(variable = strtok(NULL, " \"\n\t"))) {
continue;
}
// New owner found?
newOwner = NXUniqueString(owner);
if (newOwner != prevOwner) {
// Add the previous owner to browser, unless it's GLOBAL
if (set.owner) {
if (strcmp(set.owner, "GLOBAL")) {
[self setBrowserCell:&set withMatrix:matrix atRow:count];
count++;
} else if (set.value != USE_DEFAULT) {
globalSetting = set.value;
globalTestSetting = set.test;
}
}
// Set up this entry
set.owner = newOwner;
set.value = USE_DEFAULT;
set.test = NO;
prevOwner = newOwner;
}
// Is this the NXWindowDepthList entry?
if (strcmp(variable, "NXWindowDepthLimit")) {
continue;
}
// Yes, find the setting
if (!(value = strtok(NULL, " \"\n\t"))) {
continue;
}
// Is this a setting we know?
for (i = 0; i < 4; i++) {
if (!strcmp(value, defaultnames[i])) {
set.value = i;
set.test = NO;
}
}
// Not found so try the Test modes
if (i == 4) {
for (i = 0; i < 4; i++) {
if (!strcmp(value, defaulttestnames[i])) {
set.value = i;
set.test = YES;
}
}
}
}
// Write the last owner
if (set.owner) {
[self setBrowserCell:&set withMatrix:matrix atRow:count];
count++;
}
// Deallocate resources
free(line);
pclose(fp);
// Set the radio buttons for the GLOBAL setting
[defaultRadio selectCellWithTag:globalSetting];
[defaultSwitch setState:globalTestSetting];
// Nothing is currently selected in the browser
[appRadio clearSelectedCell];
[appSwitch setState:0];
[appRadio setEnabled:NO];
[appSwitch setEnabled:NO];
return count;
}
/*=========================================================================
* NAME : setDefault:
* DESCRIPTION : Target of Default radio button matrix.
*=========================================================================*/
- setDefault:sender
{
char command[256];
int offset = [[defaultRadio selectedCell] tag];
if (offset == 4) {
sprintf(command, "dremove -g NXWindowDepthLimit");
[defaultSwitch setState:0];
} else if ([defaultSwitch state]) {
sprintf(command, "dwrite -g NXWindowDepthLimit %s",
defaulttestnames[offset]);
} else {
sprintf(command, "dwrite -g NXWindowDepthLimit %s",
defaultnames[offset]);
}
system(command);
return self;
}
/*=========================================================================
* NAME : setApp:
* DESCRIPTION : Target of Application radio button matrix.
*=========================================================================*/
- setApp:sender
{
char command[256];
id matrix;
List *aList;
int count, total;
NXAtom owner;
id cell;
int offset = [[appRadio selectedCell] tag];
// Get a list of all the selected cells in the browser
matrix = [browser matrixInColumn:0];
aList = [[List alloc] init];
[matrix getSelectedCells:aList];
// Modify the defaults database to match
total = [aList count];
for (count = 0; count < total; count++) {
cell = [aList objectAt:count];
owner = [cell owner];
if (offset == 4) {
[appSwitch setState:0];
sprintf(command, "dremove %s NXWindowDepthLimit", owner);
} else if ([appSwitch state]) {
sprintf(command, "dwrite %s NXWindowDepthLimit %s",
owner, defaulttestnames[offset]);
} else {
sprintf(command, "dwrite %s NXWindowDepthLimit %s",
owner, defaultnames[offset]);
}
system(command);
[cell setStringValue:owner];
[cell setLoaded:YES];
[cell setDepth:offset];
[cell setTestMode:[appSwitch state]];
}
[aList free];
[browser displayColumn:0];
return self;
}
@end