add redraw function

flipcontrol_esp32/include/image.h

@@ -29,6 +29,7 @@ private:
     uint16_t backBuffer[COLUMNS];
 
     bool flag_updating; //when true, display flip is in progress. frontBuffer does not match backBuffer
+    bool flag_redraw; //when set true, settings for updating are overwritten such that all dots are cleared and set
 
     uint8_t update_counter; //used for keeping track of progress for updating
 
@@ -75,6 +76,8 @@ public:
     void loop_testDots();
     void loop_drawClearTest();
 
+    void redraw();
+
     
 
     unsigned long updateDuration; //for statistics and debugging. time it took for one update (max)

flipcontrol_esp32/src/image.cpp

@@ -830,11 +830,17 @@ void Image::shuffleOrder(uint8_t iterations) {
 UpdateReturn Image::updateByColumn(bool clearFirst, bool optimizeClear, bool optimizeSet)
 {
     /*
-    clearFirst : if True, go through all columns and clear them (by set order). Then go through same order and set dots.
+    clearFirst : if True, go through all columns and clear them (by set order). Then go through same order and set dots. If False, clear one column then set it immediately afterwards.
     optimizeClear : if True, do not clear columns where dots need to be set or no change is happening. if False, clear every column
     optimizeSet : if True, do not set already set dots again.
     */
 
+    if (flag_redraw) {
+        clearFirst=false;
+        optimizeClear=false;
+        optimizeSet=false;
+    }
+
     if (!flag_updating) {
         return nochange; //finished
     }
@@ -898,6 +904,7 @@ UpdateReturn Image::updateByColumn(bool clearFirst, bool optimizeClear, bool opt
     if (update_counter/2>=getW()) { //reached last column
         flag_updating=false;
         update_counter=0;
+        flag_redraw=false;
         return finished; //finished
     }
     return updating; //not finished
@@ -1038,4 +1045,7 @@ void Image::loop_drawClearTest() {
 }
 
 
-
+void Image::redraw() {
+    flag_redraw=true;
+    flag_updating=true;
+}

flipcontrol_esp32/src/main.cpp

@@ -26,6 +26,7 @@ uint8_t stringToBool(String s);
 bool presetHandler(const HomieRange& range, const String& value);
 bool orderHandler(const HomieRange& range, const String& value);
 bool dataHandler(const HomieRange& range, const String& value);
+bool controlHandler(const HomieRange& range, const String& value);
 
 bool clearFirstHandler(const HomieRange& range, const String& value);
 bool optimizeClearHandler(const HomieRange& range, const String& value);
@@ -49,6 +50,7 @@ void setup() {
     flipdotNode.advertise("preset").settable(presetHandler);
     flipdotNode.advertise("data").settable(dataHandler);
     flipdotNode.advertise("order").settable(orderHandler);
+    flipdotNode.advertise("control").settable(controlHandler);
     settingsNode.advertise("clearfirst").settable(clearFirstHandler);
     settingsNode.advertise("optimizeclear").settable(optimizeClearHandler);
     settingsNode.advertise("optimizeset").settable(optimizeSetHandler);
@@ -140,13 +142,11 @@ void loop() {
     }
     */
 
-    
     UpdateReturn result=flip.updateByColumn(clearFirst,optimizeClear,optimizeSet); //0=not finished, 1=finished
     //UpdateReturn result=flip.updateByColumn(true,false,false); //0=not finished, 1=finished   <- most simple
     static UpdateReturn last_result=finished;
     if (last_result==nochange && result!=last_result) { //was finished but has just started updating again
         last_change=loopmillis; //display started changing dots. set starting time.
-        Serial.print("Reset Time to "); Serial.println(last_change);
     }
     last_result=result;
     if (result == finished) //just finished
@@ -158,6 +158,7 @@ void loop() {
         resultNode.setProperty("updateduration").send((String)flip.updateDuration);
         flip.updateDuration=0; //reset
         
+
     }
 
     if (error.length()>0) { //is there an error to send?
@@ -313,3 +314,22 @@ uint8_t stringToBool(String s) {
     }
 }
  
+
+
+
+bool controlHandler(const HomieRange& range, const String& value) {
+    Serial.print("Control payload="); Serial.println(value);
+    if (value == "redraw"){
+        flip.redraw();
+    }else if(value == "black"){
+        flip.setBuffer_solid(0);
+        flip.redraw();
+    }else{
+        error="preset \""+value+"\" not found";
+        return false;
+    }
+
+  flipdotNode.setProperty("control").send(value);
+
+  return true;
+}