Merge branch 'main' into beta

src/app/commands/filters/cmd_brightness_contrast.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2020  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2017  David Capello
 //
 // This program is distributed under the terms of
@@ -65,6 +65,7 @@ public:
 private:
 
   void onChange() {
+    stopPreview();
     m_filter.setBrightness(m_brightness.getValue() / 100.0);
     m_filter.setContrast(m_contrast.getValue() / 100.0);
     restartPreview();

src/app/commands/filters/cmd_color_curve.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -55,6 +55,8 @@ public:
 protected:
 
   void onCurveChange() {
+    stopPreview();
+
     // The color curve in the filter is the same refereced by the
     // editor. But anyway, we have to re-set the same curve in the
     // filter to regenerate the map used internally by the filter

src/app/commands/filters/cmd_convolution_matrix.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2020  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -136,6 +136,8 @@ private:
     std::shared_ptr<ConvolutionMatrix> matrix = m_stock.getByName(selected->text().c_str());
     Target newTarget = matrix->getDefaultTarget();
 
+    stopPreview();
+
     m_filter.setMatrix(matrix);
 
     setNewTarget(newTarget);

src/app/commands/filters/cmd_despeckle.cpp

@@ -81,6 +81,12 @@ private:
     newSize.w = base::clamp(newSize.w, 1, 100);
     newSize.h = base::clamp(newSize.h, 1, 100);
 
+    // If we had a previous filter preview running in the background,
+    // we explicitly request it be stopped. Otherwise, changing the
+    // size of the filter would cause a race condition on
+    // MedianFilter::m_channel field.
+    stopPreview();
+
     m_filter.setSize(newSize.w, newSize.h);
     restartPreview();
   }

src/app/commands/filters/cmd_hue_saturation.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2020  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2017-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -95,6 +95,8 @@ private:
   }
 
   void onChangeMode() {
+    stopPreview();
+
     Preferences::instance().hueSaturation.mode(mode());
     m_filter.setMode(mode());
     m_sliders.setColorType(isHsl() ?
@@ -105,6 +107,8 @@ private:
   }
 
   void onChangeControls() {
+    stopPreview();
+
     m_sliders.syncRelHsvHslSliders();
 
     if (isHsl()) {

src/app/commands/filters/cmd_outline.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2020  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -137,21 +137,26 @@ private:
   }
 
   void onColorChange(const app::Color& color) {
+    stopPreview();
     m_filter.color(color);
     restartPreview();
   }
 
   void onBgColorChange(const app::Color& color) {
+    stopPreview();
     m_filter.bgColor(color);
     restartPreview();
   }
 
   void onPlaceChange(OutlineFilter::Place place) {
+    stopPreview();
     m_filter.place(place);
     restartPreview();
   }
 
   void onMatrixTypeChange() {
+    stopPreview();
+
     OutlineFilter::Matrix matrix = OutlineFilter::Matrix::None;
     switch (m_panel.outlineType()->selectedItem()) {
       case CIRCLE: matrix = OutlineFilter::Matrix::Circle; break;
@@ -165,6 +170,8 @@ private:
   }
 
   void onMatrixPixelChange(const int index) {
+    stopPreview();
+
     int matrix = (int)m_filter.matrix();
     matrix ^= (1 << (8-index));
     m_filter.matrix((OutlineFilter::Matrix)matrix);

src/app/commands/filters/cmd_replace_color.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2021  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2001-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -101,16 +101,19 @@ public:
 private:
 
   void onFromChange(const app::Color& color) {
+    stopPreview();
     m_filter.setFrom(color);
     restartPreview();
   }
 
   void onToChange(const app::Color& color) {
+    stopPreview();
     m_filter.setTo(color);
     restartPreview();
   }
 
   void onToleranceChange() {
+    stopPreview();
     m_filter.setTolerance(m_toleranceSlider->getValue());
     restartPreview();
   }

src/app/commands/filters/filter_window.h

@@ -1,4 +1,5 @@
 // Aseprite
+// Copyright (C) 2022  Igara Studio S.A.
 // Copyright (C) 2001-2017  David Capello
 //
 // This program is distributed under the terms of
@@ -40,7 +41,7 @@ namespace app {
     bool doModal();
 
     // Starts (or restart) the preview procedure. You should call this
-    // method each time the user modifies parameters of the Filter.
+    // method after the user modifies parameters of the Filter.
     void restartPreview();
 
   protected:
@@ -61,9 +62,11 @@ namespace app {
     // mode overriding this method.
     virtual void setupTiledMode(TiledMode tiledMode) { }
 
-  private:
+    // Stops the filter preview background thread, you should call
+    // this before you modify the parameters of the Filter.
     void stopPreview();
 
+  private:
     const char* m_cfgSection;
     FilterManagerImpl* m_filterMgr;
     ui::Box m_hbox;

src/app/script/api_version.h

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2018-2021  Igara Studio S.A.
+// Copyright (C) 2018-2022  Igara Studio S.A.
 //
 // This program is distributed under the terms of
 // the End-User License Agreement for Aseprite.
@@ -10,6 +10,6 @@
 
 // Increment this value if the scripting API is modified between two
 // released Aseprite versions.
-#define API_VERSION   16
+#define API_VERSION   17
 
 #endif

src/app/script/color_class.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2020  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2018  David Capello
 //
 // This program is distributed under the terms of
@@ -138,7 +138,8 @@ app::Color Color_new(lua_State* L, int index)
 
     // Convert { index } into a Color
     if (lua_getfield(L, index, "index") != LUA_TNIL) {
-      color = app::Color::fromIndex(lua_tonumber(L, -1));
+      int i = lua_tointeger(L, -1);
+      color = app::Color::fromIndex(i);
       lua_pop(L, 1);
       return color;
     }
@@ -296,7 +297,7 @@ int Color_get_gray(lua_State* L)
 int Color_get_index(lua_State* L)
 {
   auto color = get_obj<app::Color>(L, 1);
-  lua_pushnumber(L, color->getIndex());
+  lua_pushinteger(L, color->getIndex());
   return 1;
 }
 

src/app/script/sprite_class.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2018-2021  Igara Studio S.A.
+// Copyright (C) 2018-2022  Igara Studio S.A.
 // Copyright (C) 2015-2018  David Capello
 //
 // This program is distributed under the terms of
@@ -376,6 +376,8 @@ int Sprite_deleteLayer(lua_State* L)
     }
   }
   if (layer) {
+    if (sprite != layer->sprite())
+      return luaL_error(L, "the layer doesn't belong to the sprite");
     Tx tx;
     tx(new cmd::RemoveLayer(layer));
     tx.commit();
@@ -502,11 +504,11 @@ int Sprite_newCel(lua_State* L)
 int Sprite_deleteCel(lua_State* L)
 {
   auto sprite = get_docobj<Sprite>(L, 1);
-  (void)sprite;                 // unused
-
   auto cel = may_get_docobj<doc::Cel>(L, 2);
   if (!cel) {
     if (auto layer = may_get_docobj<doc::Layer>(L, 2)) {
+      if (sprite != layer->sprite())
+        return luaL_error(L, "the layer doesn't belong to the sprite");
       doc::frame_t frame = get_frame_number_from_arg(L, 3);
       if (layer->isImage())
         cel = static_cast<doc::LayerImage*>(layer)->cel(frame);
@@ -549,6 +551,8 @@ int Sprite_deleteTag(lua_State* L)
       tag = sprite->tags().getByName(tagName);
   }
   if (tag) {
+    if (sprite != tag->owner()->sprite())
+      return luaL_error(L, "the tag doesn't belong to the sprite");
     Tx tx;
     tx(new cmd::RemoveTag(sprite, tag));
     tx.commit();
@@ -583,6 +587,8 @@ int Sprite_deleteSlice(lua_State* L)
       slice = sprite->slices().getByName(sliceName);
   }
   if (slice) {
+    if (sprite != slice->owner()->sprite())
+      return luaL_error(L, "the slice doesn't belong to the sprite");
     Tx tx;
     tx(new cmd::RemoveSlice(sprite, slice));
     tx.commit();

src/app/ui/color_shades.cpp

@@ -1,5 +1,5 @@
 // Aseprite
-// Copyright (C) 2019-2020  Igara Studio S.A.
+// Copyright (C) 2019-2022  Igara Studio S.A.
 // Copyright (C) 2018  David Capello
 //
 // This program is distributed under the terms of
@@ -160,10 +160,12 @@ bool ColorShades::onProcessMessage(ui::Message* msg)
       break;
 
     case ui::kMouseUpMessage: {
+      auto button = static_cast<ui::MouseMessage*>(msg)->button();
+
       if (m_click == ClickWholeShade) {
         setSelected(true);
 
-        ClickEvent ev(static_cast<ui::MouseMessage*>(msg)->button());
+        ClickEvent ev(button);
         Click(ev);
 
         closeWindow();
@@ -180,9 +182,18 @@ bool ColorShades::onProcessMessage(ui::Message* msg)
         m_dragIndex = -1;
         invalidate();
 
+        ClickEvent ev(button);
+        Click(ev);
+
         // Relayout the context bar if we have removed an entry.
-        if (m_hotIndex < 0)
+        //
+        // TODO it looks like this should be handled in some kind of
+        //      Change() event in the ColorBar
+        if (m_hotIndex < 0 &&
+            parent() &&
+            parent()->parent()) {
           parent()->parent()->layout();
+        }
       }
 
       if (hasCapture())

src/app/ui/editor/delayed_mouse_move.cpp

@@ -60,6 +60,12 @@ void DelayedMouseMove::onMouseUp(const ui::MouseMessage* msg)
   commitMouseMove();
 }
 
+void DelayedMouseMove::stopTimer()
+{
+  if (m_timer.isRunning())
+    m_timer.stop();
+}
+
 void DelayedMouseMove::commitMouseMove()
 {
   if (m_timer.isRunning())

src/app/ui/editor/delayed_mouse_move.h

@@ -50,6 +50,11 @@ namespace app {
     bool onMouseMove(const ui::MouseMessage* msg);
     void onMouseUp(const ui::MouseMessage* msg);
 
+    // Forces stopping the timer so we don't receive a Tick event in
+    // case that we've just removed/delete some structure that is
+    // needed in onCommitMouseMove().
+    void stopTimer();
+
     const gfx::PointF& spritePos() const;
 
   private:

src/app/ui/editor/moving_pixels_state.cpp

@@ -400,6 +400,11 @@ bool MovingPixelsState::onMouseMove(Editor* editor, MouseMessage* msg)
 void MovingPixelsState::onCommitMouseMove(Editor* editor,
                                           const gfx::PointF& spritePos)
 {
+  ASSERT(m_pixelsMovement);
+
+  if (!m_pixelsMovement->isDragging())
+    return;
+
   m_pixelsMovement->setFastMode(true);
 
   // Get the customization for the pixels movement (snap to grid, angle snap, etc.).
@@ -857,6 +862,10 @@ void MovingPixelsState::removeAsEditorObserver()
 
 void MovingPixelsState::removePixelsMovement()
 {
+  // Avoid receiving a onCommitMouseMove() message when
+  // m_pixelsMovement is already nullptr.
+  m_delayedMouseMove.stopTimer();
+
   m_pixelsMovement.reset();
   m_ctxConn.disconnect();
   m_opaqueConn.disconnect();

src/app/ui/main_window.cpp

@@ -375,13 +375,22 @@ void MainWindow::onResize(ui::ResizeEvent& ev)
 {
   app::gen::MainWindow::onResize(ev);
 
-  ui::Display* display = this->display();
-  if ((display) &&
-      (display->scale()*ui::guiscale() > 2) &&
-      (!m_scalePanic) &&
-      (display->size().w / ui::guiscale() < 320 ||
-       display->size().h / ui::guiscale() < 260)) {
-    showNotification(m_scalePanic = new ScreenScalePanic);
+  os::Window* nativeWindow = (display() ? display()->nativeWindow(): nullptr);
+  if (nativeWindow && nativeWindow->screen()) {
+    const int scale = nativeWindow->scale()*ui::guiscale();
+
+    // We can check for the available workarea to know that the user
+    // can resize the window to its full size and there will be enough
+    // room to display some common dialogs like (for example) the
+    // Preferences dialog.
+    if ((scale > 2) &&
+        (!m_scalePanic)) {
+      const gfx::Size wa = nativeWindow->screen()->workarea().size();
+      if ((wa.w / scale < 256 ||
+           wa.h / scale < 256)) {
+        showNotification(m_scalePanic = new ScreenScalePanic);
+      }
+    }
   }
 }
 

src/render/gradient.cpp

@@ -144,18 +144,19 @@ void render_rgba_radial_gradient(
     return;
   }
 
-  // If there is no vector defining the gradient (just one point),
-  // the "gradient" will be just "c0"
-  if (p0 == p1) {
-    img->clear(c0);
-    return;
-  }
-
   base::Vector2d<double>
     u(p0.x, p0.y),
     v(p1.x, p1.y), w;
   w = (v - u) / 2;
 
+  // If there is no vector defining the gradient (just one point),
+  // the "gradient" will be just a solid color ("c1")
+  if (std::fabs(w.x) <= 0.000001 ||
+      std::fabs(w.y) <= 0.000001) {
+    img->clear(c1);
+    return;
+  }
+
   // As we use non-premultiplied RGB values, we need correct RGB
   // values on each stop. So in case that one color has alpha=0
   // (complete transparent), use the RGB values of the