add horisontal swipes

Author: john-peterson

terminal-emulator/src/main/java/com/termux/terminal/TerminalEmulator.java

@@ -37,6 +37,9 @@ public final class TerminalEmulator {
     public static final int MOUSE_LEFT_BUTTON_MOVED = 32;
     public static final int MOUSE_WHEELUP_BUTTON = 64;
     public static final int MOUSE_WHEELDOWN_BUTTON = 65;
+    
+    public static final int MOUSE_WHEEL_LEFT = 66;
+    public static final int MOUSE_WHEEL_RIGHT = 67;
 
     /** Used for invalid data - http://en.wikipedia.org/wiki/Replacement_character#Replacement_character */
     public static final int UNICODE_REPLACEMENT_CHAR = 0xFFFD;

terminal-view/src/main/java/com/termux/view/TerminalView.java

@@ -81,6 +81,7 @@ public final class TerminalView extends View {
 
     /** What was left in from scrolling movement. */
     float mScrollRemainder;
+    float mScrollXRemainder;
 
     /** If non-zero, this is the last unicode code point received if that was a combining character. */
     int mCombiningAccent;
@@ -104,6 +105,7 @@ public TerminalView(Context context, AttributeSet attributes) { // NO_UCD (unuse
             @Override
             public boolean onUp(MotionEvent event) {
                 mScrollRemainder = 0.0f;
+                mScrollXRemainder = 0.0f;
                 if (mEmulator != null && mEmulator.isMouseTrackingActive() && !event.isFromSource(InputDevice.SOURCE_MOUSE) && !isSelectingText() && !scrolledWithFinger) {
                     // Quick event processing when mouse tracking is active - do not wait for check of double tapping
                     // for zooming.
@@ -143,6 +145,12 @@ public boolean onScroll(MotionEvent e, float distanceX, float distanceY) {
                     int deltaRows = (int) (distanceY / mRenderer.mFontLineSpacing);
                     mScrollRemainder = distanceY - deltaRows * mRenderer.mFontLineSpacing;
                     doScroll(e, deltaRows);
+                    
+                    distanceX += mScrollXRemainder;
+                    int deltaCols = (int) (distanceX / mRenderer.mFontWidth);
+                    mScrollXRemainder = distanceX - deltaCols * mRenderer.mFontWidth;
+//mClient.logError("scrolll", distanceY, distanceX);
+                    doScrollH(e, deltaCols);
                 }
                 return true;
             }
@@ -166,6 +174,7 @@ public boolean onFling(final MotionEvent e2, float velocityX, float velocityY) {
                 if (mouseTrackingAtStartOfFling) {
                     mScroller.fling(0, 0, 0, -(int) (velocityY * SCALE), 0, 0, -mEmulator.mRows / 2, mEmulator.mRows / 2);
                 } else {
+                	//this doesn't fling in less
                     mScroller.fling(0, mTopRow, 0, -(int) (velocityY * SCALE), 0, 0, -mEmulator.getScreen().getActiveTranscriptRows(), 0);
                 }
 
@@ -519,7 +528,11 @@ void sendMouseEventCode(MotionEvent e, int button, boolean pressed) {
         int[] columnAndRow = getColumnAndRow(e, false);
         int x = columnAndRow[0] + 1;
         int y = columnAndRow[1] + 1;
-        if (pressed && (button == TerminalEmulator.MOUSE_WHEELDOWN_BUTTON || button == TerminalEmulator.MOUSE_WHEELUP_BUTTON)) {
+        if (pressed && (button == TerminalEmulator.MOUSE_WHEELDOWN_BUTTON 
+|| button == TerminalEmulator.MOUSE_WHEELUP_BUTTON
+|| button == TerminalEmulator.MOUSE_WHEEL_LEFT
+|| button == TerminalEmulator.MOUSE_WHEEL_RIGHT
+)) {
             if (mMouseStartDownTime == e.getDownTime()) {
                 x = mMouseScrollStartX;
                 y = mMouseScrollStartY;
@@ -549,6 +562,26 @@ void doScroll(MotionEvent event, int rowsDown) {
             }
         }
     }
+    
+    void doScrollH(MotionEvent event, int cols) {
+        boolean left = cols < 0;
+        int amount = Math.abs(cols);
+        for (int i = 0; i < amount; i++) {
+            if (mEmulator.isMouseTrackingActive()) {
+                sendMouseEventCode(event, left ? TerminalEmulator.MOUSE_WHEEL_LEFT : TerminalEmulator.MOUSE_WHEEL_RIGHT, true);
+            } else if (mEmulator.isAlternateBufferActive()) {
+            	/* less is broken let me know if it works elsewhere @john-peterson
+                handleKeyCode(left ? KeyEvent.KEYCODE_DPAD_LEFT : KeyEvent.KEYCODE_DPAD_RIGHT, 0);
+                */
+            } else {
+            	/*
+                mTopRow = Math.min(0, Math.max(-(mEmulator.getScreen().getActiveTranscriptRows()), mTopRow + (up ? -1 : 1)));
+                if (!awakenScrollBars())
+                    invalidate();
+                    */
+            }
+        }
+    }
 
     /** Overriding {@link View#onGenericMotionEvent(MotionEvent)}. */
     @Override