Complete cursor-based movement of headers.

AvailableMetersPanel.c

@@ -6,6 +6,7 @@ in the source distribution for its full text.
 */
 
 #include "AvailableMetersPanel.h"
+#include "MetersPanel.h"
 
 #include "CPUMeter.h"
 #include "Header.h"
@@ -43,6 +44,9 @@ static void AvailableMetersPanel_delete(Object* object) {
 static inline void AvailableMetersPanel_addMeter(Header* header, Panel* panel, MeterClass* type, int param, int column) {
    Meter* meter = (Meter*) Header_addMeterByClass(header, type, param, column);
    Panel_add(panel, (Object*) Meter_toListItem(meter));
+   Panel_setSelected(panel, Panel_size(panel) - 1);
+   ((MetersPanel*)panel)->moving = true;
+   ((ListItem*)Panel_getSelected(panel))->moving = true;
 }
 
 static HandlerResult AvailableMetersPanel_eventHandler(Panel* super, int ch) {
@@ -53,6 +57,7 @@ static HandlerResult AvailableMetersPanel_eventHandler(Panel* super, int ch) {
    int param = selected->key & 0xff;
    int type = selected->key >> 16;
    HandlerResult result = IGNORED;
+   bool update = false;
 
    switch(ch) {
       case KEY_F(5):
@@ -61,18 +66,23 @@ static HandlerResult AvailableMetersPanel_eventHandler(Panel* super, int ch) {
       {
          AvailableMetersPanel_addMeter(header, this->leftPanel, Platform_meterTypes[type], param, 0);
          result = HANDLED;
+         update = true;
          break;
       }
+      case 0x0a:
+      case 0x0d:
+      case KEY_ENTER:
       case KEY_F(6):
       case 'r':
       case 'R':
       {
          AvailableMetersPanel_addMeter(header, this->rightPanel, Platform_meterTypes[type], param, 1);
-         result = HANDLED;
+         result = (KEY_LEFT << 16) | SYNTH_KEY;
+         update = true;
          break;
       }
    }
-   if (result == HANDLED) {
+   if (update) {
       this->settings->changed = true;
       Header_calculateHeight(header);
       Header_draw(header);

CategoriesPanel.c

@@ -34,9 +34,13 @@ typedef struct CategoriesPanel_ {
 
 }*/
 
-static const char* MetersFunctions[] = {"      ", "      ", "      ", "Type  ", "      ", "      ", "MoveUp", "MoveDn", "Remove", "Done  ", NULL};
+static const char* MetersFunctions[] = {"Type  ", "Move  ", "Delete", "Done  ", NULL};
+static const char* MetersKeys[] = {"Space", "Enter", "Del", "Esc"};
+static int MetersEvents[] = {' ', 13, 27, KEY_DC};
 
-static const char* AvailableMetersFunctions[] = {"      ", "      ", "      ", "      ", "Add L ", "Add R ", "      ", "      ", "      ", "Done  ", NULL};
+static const char* AvailableMetersFunctions[] = {"Add   ", "Done  ", NULL};
+static const char* AvailableMetersKeys[] = {"Enter", "Esc"};
+static int AvailableMetersEvents[] = {13, 27};
 
 static const char* DisplayOptionsFunctions[] = {"      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "      ", "Done  ", NULL};
 
@@ -54,12 +58,14 @@ static void CategoriesPanel_delete(Object* object) {
 }
 
 void CategoriesPanel_makeMetersPage(CategoriesPanel* this) {
-   Panel* leftMeters = (Panel*) MetersPanel_new(this->settings, "Left column", this->header->columns[0], this->scr);
-   Panel* rightMeters = (Panel*) MetersPanel_new(this->settings, "Right column", this->header->columns[1], this->scr);
-   Panel* availableMeters = (Panel*) AvailableMetersPanel_new(this->settings, this->header, leftMeters, rightMeters, this->scr, this->pl);
-   ScreenManager_add(this->scr, leftMeters, FunctionBar_new(MetersFunctions, NULL, NULL), 20);
-   ScreenManager_add(this->scr, rightMeters, FunctionBar_new(MetersFunctions, NULL, NULL), 20);
-   ScreenManager_add(this->scr, availableMeters, FunctionBar_new(AvailableMetersFunctions, NULL, NULL), -1);
+   MetersPanel* leftMeters = MetersPanel_new(this->settings, "Left column", this->header->columns[0], this->scr);
+   MetersPanel* rightMeters = MetersPanel_new(this->settings, "Right column", this->header->columns[1], this->scr);
+   leftMeters->rightNeighbor = rightMeters;
+   rightMeters->leftNeighbor = leftMeters;
+   Panel* availableMeters = (Panel*) AvailableMetersPanel_new(this->settings, this->header, (Panel*) leftMeters, (Panel*) rightMeters, this->scr, this->pl);
+   ScreenManager_add(this->scr, (Panel*) leftMeters, FunctionBar_new(MetersFunctions, MetersKeys, MetersEvents), 20);
+   ScreenManager_add(this->scr, (Panel*) rightMeters, FunctionBar_new(MetersFunctions, MetersKeys, MetersEvents), 20);
+   ScreenManager_add(this->scr, availableMeters, FunctionBar_new(AvailableMetersFunctions, AvailableMetersKeys, AvailableMetersEvents), -1);
 }
 
 static void CategoriesPanel_makeDisplayOptionsPage(CategoriesPanel* this) {

MetersPanel.c

@@ -15,14 +15,18 @@ in the source distribution for its full text.
 #include "Settings.h"
 #include "ScreenManager.h"
 
-typedef struct MetersPanel_ {
+typedef struct MetersPanel_ MetersPanel;
+
+struct MetersPanel_ {
    Panel super;
 
    Settings* settings;
    Vector* meters;
    ScreenManager* scr;
+   MetersPanel* leftNeighbor;
+   MetersPanel* rightNeighbor;
    bool moving;
-} MetersPanel;
+};
 
 }*/
 
@@ -33,11 +37,34 @@ static void MetersPanel_delete(Object* object) {
    free(this);
 }
 
+static inline bool moveToNeighbor(MetersPanel* this, MetersPanel* neighbor, int selected) {
+   Panel* super = (Panel*) this;
+   if (this->moving) {
+      this->moving = false;
+      ((ListItem*)Panel_getSelected(super))->moving = false;
+      if (neighbor) {
+         if (selected < Vector_size(this->meters)) {
+            Meter* meter = (Meter*) Vector_take(this->meters, selected);
+            Panel_remove(super, selected);
+            Vector_insert(neighbor->meters, selected, meter);
+            Panel_insert(&(neighbor->super), selected, (Object*) Meter_toListItem(meter));
+            Panel_setSelected(&(neighbor->super), selected);
+
+            neighbor->moving = true;
+            ((ListItem*)Panel_getSelected((Panel*)neighbor))->moving = true;
+            return true;
+         }
+      }
+   }
+   return false;
+}
+
 static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
    MetersPanel* this = (MetersPanel*) super;
    
    int selected = Panel_getSelectedIndex(super);
    HandlerResult result = IGNORED;
+   bool sideMove = false;
 
    switch(ch) {
       case 0x0a:
@@ -93,6 +120,18 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
          result = HANDLED;
          break;
       }
+      case KEY_RIGHT:
+      {
+         sideMove = moveToNeighbor(this, this->rightNeighbor, selected);
+         // don't set HANDLED; let ScreenManager handle focus.
+         break;
+      }
+      case KEY_LEFT:
+      {
+         sideMove = moveToNeighbor(this, this->leftNeighbor, selected);
+         // don't set HANDLED; let ScreenManager handle focus.
+         break;
+      }
       case KEY_F(9):
       case KEY_DC:
       {
@@ -104,7 +143,7 @@ static HandlerResult MetersPanel_eventHandler(Panel* super, int ch) {
          break;
       }
    }
-   if (result == HANDLED) {
+   if (result == HANDLED || sideMove) {
       Header* header = (Header*) this->scr->header;
       this->settings->changed = true;
       Header_calculateHeight(header);

MetersPanel.h

@@ -13,14 +13,18 @@ in the source distribution for its full text.
 #include "Settings.h"
 #include "ScreenManager.h"
 
-typedef struct MetersPanel_ {
+typedef struct MetersPanel_ MetersPanel;
+
+struct MetersPanel_ {
    Panel super;
 
    Settings* settings;
    Vector* meters;
    ScreenManager* scr;
+   MetersPanel* leftNeighbor;
+   MetersPanel* rightNeighbor;
    bool moving;
-} MetersPanel;
+};
 
 
 extern PanelClass MetersPanel_class;

Panel.c

@@ -33,6 +33,7 @@ typedef enum HandlerResult_ {
    BREAK_LOOP  = 0x04,
    REFRESH     = 0x08,
    RECALCULATE = 0x10,
+   SYNTH_KEY   = 0x20,
 } HandlerResult;
 
 #define EVENT_SETSELECTED -1

Panel.h

@@ -22,6 +22,7 @@ typedef enum HandlerResult_ {
    BREAK_LOOP  = 0x04,
    REFRESH     = 0x08,
    RECALCULATE = 0x10,
+   SYNTH_KEY   = 0x20,
 } HandlerResult;
 
 #define EVENT_SETSELECTED -1

ScreenManager.c

@@ -231,7 +231,9 @@ void ScreenManager_run(ScreenManager* this, Panel** lastFocus, int* lastKey) {
       }
       if (Panel_eventHandlerFn(panelFocus)) {
          HandlerResult result = Panel_eventHandler(panelFocus, ch);
-//fprintf(stderr, "eventResult=%d ", result);
+         if (result & SYNTH_KEY) {
+            ch = result >> 16;
+         }
          if (result & REFRESH) {
             doRefresh = true;
             sortTimeout = 0;

Vector.c

@@ -193,6 +193,10 @@ void Vector_insert(Vector* this, int idx, void* data_) {
    assert(Object_isA(data, this->type));
    assert(Vector_isConsistent(this));
 
+   if (idx > this->items) {
+      idx = this->items;
+   }
+   
    Vector_checkArraySize(this);
    //assert(this->array[this->items] == NULL);
    for (int i = this->items; i > idx; i--) {