Editable resize factor in File > Export (fix #3007)

Related to #3008

data/widgets/export_file.xml

@@ -1,4 +1,5 @@
 <!-- Aseprite -->
+<!-- Copyright (C) 2022 by Igara Studio S.A. -->
 <!-- Copyright (C) 2016-2018 by David Capello -->
 <gui>
   <window id="export_file" text="@.title">
@@ -8,19 +9,20 @@
       <button id="output_filename_browse" text="..." style="mini_button" />
 
       <label id="resize_label" text="@.resize" />
-      <combobox id="resize" cell_align="horizontal" cell_hspan="2">
-        <listitem text="25%" value="0.25" />
-        <listitem text="50%" value="0.5" />
-        <listitem text="100%" value="1" />
-        <listitem text="200%" value="2" />
-        <listitem text="300%" value="3" />
-        <listitem text="400%" value="4" />
-        <listitem text="500%" value="5" />
-        <listitem text="600%" value="6" />
-        <listitem text="700%" value="7" />
-        <listitem text="800%" value="8" />
-        <listitem text="900%" value="9" />
-        <listitem text="1000%" value="10" />
+      <combobox id="resize" editable="true" suffix="%"
+                cell_align="horizontal" cell_hspan="2">
+        <listitem text="25" />
+        <listitem text="50" />
+        <listitem text="100" />
+        <listitem text="200" />
+        <listitem text="300" />
+        <listitem text="400" />
+        <listitem text="500" />
+        <listitem text="600" />
+        <listitem text="700" />
+        <listitem text="800" />
+        <listitem text="900" />
+        <listitem text="1000" />
       </combobox>
 
       <label id="layers_label" text="@.layers" />

src/app/commands/cmd_save_file.cpp

@@ -345,7 +345,7 @@ void SaveFileCopyAsCommand::onExecute(Context* context)
   std::string layers = kAllLayers;
   std::string frames = kAllFrames;
   bool applyPixelRatio = false;
-  gfx::PointF scale(params().scale(), params().scale());
+  double scale = params().scale();
   doc::AniDir aniDirValue = params().aniDir();
   bool isForTwitter = false;
 
@@ -409,18 +409,20 @@ void SaveFileCopyAsCommand::onExecute(Context* context)
 
     layers = win.layersValue();
     frames = win.framesValue();
-    scale.x = scale.y = win.resizeValue();
+    scale = win.resizeValue();
     applyPixelRatio = win.applyPixelRatio();
     aniDirValue = win.aniDirValue();
     isForTwitter = win.isForTwitter();
   }
 #endif
 
+  gfx::PointF scaleXY(scale, scale);
+
   // Pixel ratio
   if (applyPixelRatio) {
     doc::PixelRatio pr = doc->sprite()->pixelRatio();
-    scale.x *= pr.w;
-    scale.y *= pr.h;
+    scaleXY.x *= pr.w;
+    scaleXY.y *= pr.h;
   }
 
   // First of all we'll try to use the "on the fly" scaling, to avoid
@@ -428,14 +430,15 @@ void SaveFileCopyAsCommand::onExecute(Context* context)
   const undo::UndoState* undoState = nullptr;
   bool undoResize = false;
   const bool resizeOnTheFly = FileOp::checkIfFormatSupportResizeOnTheFly(outputFilename);
-  if (!resizeOnTheFly && (scale.x != 1.0 || scale.y != 1.0)) {
+  if (!resizeOnTheFly && (scaleXY.x != 1.0 ||
+                          scaleXY.y != 1.0)) {
     Command* resizeCmd = Commands::instance()->byId(CommandId::SpriteSize());
     ASSERT(resizeCmd);
     if (resizeCmd) {
       int width = doc->sprite()->width();
       int height = doc->sprite()->height();
-      int newWidth = int(double(width) * scale.x);
-      int newHeight = int(double(height) * scale.y);
+      int newWidth = int(double(width) * scaleXY.x);
+      int newHeight = int(double(height) * scaleXY.y);
       if (newWidth < 1) newWidth = 1;
       if (newHeight < 1) newHeight = 1;
       if (width != newWidth || height != newHeight) {
@@ -489,7 +492,7 @@ void SaveFileCopyAsCommand::onExecute(Context* context)
       MarkAsSaved::Off,
       (resizeOnTheFly ? ResizeOnTheFly::On:
                         ResizeOnTheFly::Off),
-      scale);
+      scaleXY);
   }
 
   // Undo resize

src/app/ui/export_file_window.cpp

@@ -51,8 +51,7 @@ ExportFileWindow::ExportFileWindow(const Doc* doc)
   }
 
   // Default export configuration
-  resize()->setValue(
-    base::convert_to<std::string>(m_docPref.saveCopy.resizeScale()));
+  setResizeScale(m_docPref.saveCopy.resizeScale());
   fill_layers_combobox(m_doc->sprite(), layers(), m_docPref.saveCopy.layer());
   fill_frames_combobox(m_doc->sprite(), frames(), m_docPref.saveCopy.frameTag());
   fill_anidir_combobox(anidir(), m_docPref.saveCopy.aniDir());
@@ -113,7 +112,8 @@ std::string ExportFileWindow::outputFilenameValue() const
 
 double ExportFileWindow::resizeValue() const
 {
-  return base::convert_to<double>(resize()->getValue());
+  double value = resize()->getEntryWidget()->textDouble() / 100.0;
+  return std::clamp(value, 0.001, 100000000.0);
 }
 
 std::string ExportFileWindow::layersValue() const
@@ -141,10 +141,9 @@ bool ExportFileWindow::isForTwitter() const
   return forTwitter()->isSelected();
 }
 
-void ExportFileWindow::setResizeScale(const gfx::PointF& scale)
+void ExportFileWindow::setResizeScale(double scale)
 {
-  resize()->setValue(
-    base::convert_to<std::string>(scale.x)); // TODO support x & y
+  resize()->setValue(fmt::format("{:.2f}", 100.0 * scale));
 }
 
 void ExportFileWindow::setAniDir(const doc::AniDir aniDir)

src/app/ui/export_file_window.h

@@ -35,7 +35,7 @@ namespace app {
     bool isForTwitter() const;
 
     void setOutputFilename(const std::string& pathAndFilename);
-    void setResizeScale(const gfx::PointF& scale);
+    void setResizeScale(const double scale);
     void setAniDir(const doc::AniDir aniDir);
 
     obs::signal<std::string()> SelectOutputFile;

src/app/widget_loader.cpp

@@ -231,6 +231,10 @@ Widget* WidgetLoader::convertXmlElementToWidget(const TiXmlElement* elem, Widget
     bool editable = bool_attr(elem, "editable", false);
     if (editable)
       ((ComboBox*)widget)->setEditable(true);
+
+    const char* suffix = elem->Attribute("suffix");
+    if (suffix)
+      ((ComboBox*)widget)->getEntryWidget()->setSuffix(suffix);
   }
   else if (elem_name == "entry" ||
            elem_name == "expr") {

src/ui/combobox.cpp

@@ -327,7 +327,8 @@ void ComboBox::setValue(const std::string& value)
 {
   if (isEditable()) {
     m_entry->setText(value);
-    m_entry->selectAllText();
+    if (hasFocus())
+      m_entry->selectAllText();
   }
   else {
     int index = findItemIndexByValue(value);
@@ -536,6 +537,14 @@ bool ComboBoxEntry::onProcessMessage(Message* msg)
       return result;
     }
 
+    case kFocusLeaveMessage:
+      if (m_comboBox->isEditable() &&
+          m_comboBox->m_window &&
+          !View::getView(m_comboBox->m_listbox)->hasMouse()) {
+        m_comboBox->closeListBox();
+      }
+      break;
+
   }
 
   return Entry::onProcessMessage(msg);