Add option to ignore a warning overwriting files on Export Sprite Sheet (related to #917)

data/pref.xml

@@ -257,6 +257,9 @@
       <option id="show_export_animation_in_sequence_alert" type="bool" default="true" />
       <option id="default_extension" type="std::string" default="&quot;aseprite&quot;" />
     </section>
+    <section id="sprite_sheet">
+      <option id="show_overwrite_files_alert" type="bool" default="true" />
+    </section>
     <section id="gif">
       <option id="show_alert" type="bool" default="true" />
       <option id="interlaced" type="bool" default="false" migrate="GIF.Interlaced" />

data/strings/en.ini

@@ -951,6 +951,7 @@ END
 undo_allow_nonlinear_history = Allow non-linear history
 file_format_doesnt_support_alert = Show warning when saving a file with unsupported features
 export_animation_in_sequence_alert = Show warning when saving an animation as a sequence of static images
+overwrite_files_on_export_sprite_sheet_alert = Show warning when overwriting files on Export Sprite Sheet
 gif_options_alert = Show GIF options when saving .gif files
 jpeg_options_alert = Show JPEG options when saving .jpeg files
 advanced_mode_alert = Show alert when we enter to Advanced Mode

data/widgets/options.xml

@@ -276,6 +276,7 @@
           <separator text="@.section_alerts" horizontal="true" />
           <check id="file_format_doesnt_support_alert" text="@.file_format_doesnt_support_alert" />
           <check id="export_animation_in_sequence_alert" text="@.export_animation_in_sequence_alert" />
+          <check id="overwrite_files_on_export_sprite_sheet_alert" text="@.overwrite_files_on_export_sprite_sheet_alert" />
           <check id="gif_options_alert" text="@.gif_options_alert" />
           <check id="jpeg_options_alert" text="@.jpeg_options_alert" />
           <check id="advanced_mode_alert" text="@.advanced_mode_alert" />

src/app/commands/cmd_export_sprite_sheet.cpp

@@ -22,6 +22,7 @@
 #include "app/restore_visible_layers.h"
 #include "app/ui/editor/editor.h"
 #include "app/ui/layer_frame_comboboxes.h"
+#include "app/ui/optional_alert.h"
 #include "app/ui/status_bar.h"
 #include "app/ui/timeline/timeline.h"
 #include "base/bind.h"
@@ -147,9 +148,12 @@ namespace {
       if (base::is_file(dataname))
         text << "<<" << base::get_file_name(dataname).c_str();
 
-      if (ui::Alert::show(
+      int ret = OptionalAlert::show(
-            fmt::format(Strings::alerts_overwrite_files_on_export_sprite_sheet(),
+        Preferences::instance().spriteSheet.showOverwriteFilesAlert,
-                        text.str())) != 1)
+        1, // Yes is the default option when the alert dialog is disabled
+        fmt::format(Strings::alerts_overwrite_files_on_export_sprite_sheet(),
+                    text.str()));
+      if (ret != 1)
         return false;
     }
     return true;

src/app/commands/cmd_options.cpp

@@ -155,6 +155,7 @@ public:
     // Alerts
     fileFormatDoesntSupportAlert()->setSelected(m_pref.saveFile.showFileFormatDoesntSupportAlert());
     exportAnimationInSequenceAlert()->setSelected(m_pref.saveFile.showExportAnimationInSequenceAlert());
+    overwriteFilesOnExportSpriteSheetAlert()->setSelected(m_pref.spriteSheet.showOverwriteFilesAlert());
     gifOptionsAlert()->setSelected(m_pref.gif.showAlert());
     jpegOptionsAlert()->setSelected(m_pref.jpeg.showAlert());
     advancedModeAlert()->setSelected(m_pref.advancedMode.showAlert());
@@ -410,6 +411,7 @@ public:
 
     m_pref.saveFile.showFileFormatDoesntSupportAlert(fileFormatDoesntSupportAlert()->isSelected());
     m_pref.saveFile.showExportAnimationInSequenceAlert(exportAnimationInSequenceAlert()->isSelected());
+    m_pref.spriteSheet.showOverwriteFilesAlert(overwriteFilesOnExportSpriteSheetAlert()->isSelected());
     m_pref.gif.showAlert(gifOptionsAlert()->isSelected());
     m_pref.jpeg.showAlert(jpegOptionsAlert()->isSelected());
     m_pref.advancedMode.showAlert(advancedModeAlert()->isSelected());
@@ -593,6 +595,7 @@ private:
   void onResetAlerts() {
     fileFormatDoesntSupportAlert()->setSelected(m_pref.saveFile.showFileFormatDoesntSupportAlert.defaultValue());
     exportAnimationInSequenceAlert()->setSelected(m_pref.saveFile.showExportAnimationInSequenceAlert.defaultValue());
+    overwriteFilesOnExportSpriteSheetAlert()->setSelected(m_pref.spriteSheet.showOverwriteFilesAlert.defaultValue());
     gifOptionsAlert()->setSelected(m_pref.gif.showAlert.defaultValue());
     jpegOptionsAlert()->setSelected(m_pref.jpeg.showAlert.defaultValue());
     advancedModeAlert()->setSelected(m_pref.advancedMode.showAlert.defaultValue());