Part of batch commit to enable true tasktray resize support for Trinity applications

git-svn-id: svn://anonsvn.kde.org/home/kde/branches/trinity/applications/kcpuload@1124766 283d02a7-25f6-0310-bc7c-ecb5cbfe19da

kcpuload/kcpuload/statdock.cpp

@@ -27,17 +27,22 @@ const QColor StatDock::colorLower(255, 255, 255);
 const QColor StatDock::colorLowerInactive(125, 125, 125);
 const QColor StatDock::colorBlack(0, 0, 0);
 
-#define DOCK_SIZE 24
+//#define DOCK_SIZE 24
-#define DOCK_SCALE 4.34783 // Approx. 100/23.
+#define DOCK_SIZE width()
+#define DOCK_SCALE (100/(DOCK_SIZE-1))
 #define SOFT_STEP 3
 
 StatDock::StatDock(int whichDock, const QString& useLabel,
         StatPopup *parent, const char *name) :
         KSystemTray(parent,name),
         label(useLabel),
-        bufUpper(new int[DOCK_SIZE]),
+        bufUpper(0),
-        bufLower(new int[DOCK_SIZE]),
+        bufLower(0),
         pos(0) {
+
+    bufUpper = new int[DOCK_SIZE];
+    bufLower = new int[DOCK_SIZE];
+
     // Initialise the stored readings.
     for (i = 0; i < DOCK_SIZE; i++)
         bufUpper[i] = bufLower[i] = 0;
@@ -45,7 +50,7 @@ StatDock::StatDock(int whichDock, const QString& useLabel,
     // Initialise the display.
     parent->initDock(this, contextMenu(), whichDock);
     setBackgroundColor(colorBlack);
-    resize(24, 24);
+    resize(DOCK_SIZE, DOCK_SIZE);
     show();
 }
 
@@ -54,6 +59,28 @@ StatDock::~StatDock() {
     delete[] bufLower;
 }
 
+void StatDock::resizeEvent ( QResizeEvent * )
+{
+	// Honor Free Desktop specifications that allow for arbitrary system tray icon sizes
+	int* bufUpperOld;
+	int* bufLowerOld;
+
+	bufUpperOld = bufUpper;
+	bufLowerOld = bufLower;
+
+	bufUpper = new int[DOCK_SIZE];
+	bufLower = new int[DOCK_SIZE];
+
+	// Re-initialise the stored readings.
+	for (i = 0; i < DOCK_SIZE; i++)
+		bufUpper[i] = bufLower[i] = 0;
+
+	delete[] bufUpperOld;
+	delete[] bufLowerOld;
+
+	repaint();
+}
+
 void StatDock::setGrid(bool set) {
     grid = set;
     repaint();
@@ -146,15 +173,14 @@ void StatDock::paintEvent(QPaintEvent*) {
     // Start by drawing the grid.
     if(grid) {
         p.setPen((active) ? colorGrid : colorGridInactive);
-        p.drawLine(0, 4, 23, 4);
+        for(i = (((DOCK_SIZE+1)/5)-1); i < (DOCK_SIZE-1); i=i+((DOCK_SIZE+1)/5)) {
-        p.drawLine(0, 9, 23, 9);
+            p.drawLine(0, i, (DOCK_SIZE-1), i);
-        p.drawLine(0, 14, 23, 14);
+        }
-        p.drawLine(0, 19, 23, 19);
     }
 
     if(fill == fillShaded) {
         // Shaded
-        for(i = 0; i < 24; i++) {
+        for(i = 0; i < DOCK_SIZE; i++) {
             tmpPos = (pos + i + 1) % DOCK_SIZE;
             for(j = 0; j <= bufUpper[tmpPos]; j++) {
                 if (bufUpper[tmpPos] == 0 || j == 0)
@@ -179,7 +205,7 @@ void StatDock::paintEvent(QPaintEvent*) {
                     else
                         p.setPen(colorLower.dark((200 * bufLower[tmpPos]) / j));
 
-                    p.drawPoint(i, 23 - j);
+                    p.drawPoint(i, (DOCK_SIZE-1) - j);
                 }
             }
         }
@@ -189,20 +215,20 @@ void StatDock::paintEvent(QPaintEvent*) {
             // Draw the upper bars, then the lower to save on pen
             // adjustments.
             p.setPen(active ? colorUpper : colorUpperInactive);
-            for(i = 0; i < 24; i++) {
+            for(i = 0; i < DOCK_SIZE; i++) {
                 tmpPos = (pos + i + 1) % DOCK_SIZE;
                 p.drawLine(i, DOCK_SIZE - 1 - bufUpper[tmpPos] -
                     bufLower[tmpPos], i, DOCK_SIZE - 1 - bufLower[tmpPos]);
             }
             p.setPen(active ? colorLower : colorLowerInactive);
-            for(i = 0; i < 24; i++) {
+            for(i = 0; i < DOCK_SIZE; i++) {
                 tmpPos = (pos + i + 1) % DOCK_SIZE;
                 p.drawLine(i, DOCK_SIZE - 1 - bufLower[tmpPos],
                     i, DOCK_SIZE - 1);
             }
         } else {
             p.setPen(active ? colorUpper : colorUpperInactive);
-            for(i = 0; i < 24; i++) {
+            for(i = 0; i < DOCK_SIZE; i++) {
                 tmpPos = (pos + i + 1) % DOCK_SIZE;
                 p.drawLine(i, DOCK_SIZE - 1 - bufUpper[tmpPos],
                     i, DOCK_SIZE - 1);
@@ -214,19 +240,19 @@ void StatDock::paintEvent(QPaintEvent*) {
             // Draw the upper line, then the lower to save on pen
             // adjustments.
             p.setPen(active ? colorUpper : colorUpperInactive);
-            for(i = 0; i < 24; i++) {
+            for(i = 0; i < DOCK_SIZE; i++) {
                 tmpPos = (pos + i + 1) % DOCK_SIZE;
                 p.drawPoint(i, DOCK_SIZE - 1 -
                     bufUpper[tmpPos] - bufLower[tmpPos]);
             }
             p.setPen(active ? colorLower : colorLowerInactive);
-            for(i = 0; i < 24; i++) {
+            for(i = 0; i < DOCK_SIZE; i++) {
                 tmpPos = (pos + i + 1) % DOCK_SIZE;
                 p.drawPoint(i, DOCK_SIZE - 1 - bufLower[tmpPos]);
             }
         } else {
             p.setPen(active ? colorUpper : colorUpperInactive);
-            for(i = 0; i < 24; i++) {
+            for(i = 0; i < DOCK_SIZE; i++) {
                 tmpPos = (pos + i + 1) % DOCK_SIZE;
                 p.drawPoint(i, DOCK_SIZE - 1 - bufUpper[tmpPos]);
             }
@@ -235,7 +261,7 @@ void StatDock::paintEvent(QPaintEvent*) {
 
     // Finally label the diagrams.
     if(labelled) {
-        p.setFont(QFont("Helvetica", 8));
+        p.setFont(QFont( "Helvetica", ((8*DOCK_SIZE)/24) ));
         p.setPen((active) ? colorLabel : colorLabelInactive);
         p.drawText(rect(), AlignLeft | AlignTop, label);
     }

kcpuload/kcpuload/statdock.h

@@ -155,6 +155,9 @@ private:
      */
     int i, j, tmpPos, oldUpper, oldLower;
         /**< Temporary variables used during computations. */
+
+protected:
+    void resizeEvent ( QResizeEvent * );
 };
 
 #endif