mirror of
https://gitlab.com/sheaf/metabrush.git
synced 2024-11-05 14:53:37 +00:00
537 lines
18 KiB
Haskell
537 lines
18 KiB
Haskell
{-# LANGUAGE BlockArguments #-}
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{-# LANGUAGE ConstraintKinds #-}
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{-# LANGUAGE GADTs #-}
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{-# LANGUAGE LambdaCase #-}
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{-# LANGUAGE NegativeLiterals #-}
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{-# LANGUAGE OverloadedStrings #-}
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{-# LANGUAGE RecordWildCards #-}
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{-# LANGUAGE TypeApplications #-}
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module Main
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( main )
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where
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-- base
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import Control.Monad
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( void )
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import Data.Foldable
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( for_ )
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import Data.Int
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( Int32 )
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import System.Exit
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( exitSuccess )
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-- directory
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import qualified System.Directory as Directory
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( canonicalizePath )
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-- gi-cairo-connector
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import qualified GI.Cairo.Render.Connector as Cairo
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( renderWithContext )
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-- gi-cairo-render
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import qualified GI.Cairo.Render as Cairo
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-- gi-gdk
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import qualified GI.Gdk as GDK
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-- gi-gtk
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import qualified GI.Gtk as GTK
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-- text
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import qualified Data.Text as Text
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( pack )
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-- MetaBrush
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import MetaBrush.Asset.Colours
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( getColours )
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import MetaBrush.Asset.Cursor
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( drawCursorIcon )
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import MetaBrush.Asset.InfoBar
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( drawMagnifier, drawTopLeftCornerRect )
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import MetaBrush.Asset.Logo
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( drawLogo )
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import MetaBrush.Asset.Tools
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( drawBrush, drawMeta, drawPath, drawPen )
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import MetaBrush.Asset.WindowIcons
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( drawMinimise, drawRestoreDown, drawMaximise, drawClose )
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import MetaBrush.Event
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( handleKeyboardPressEvent, handleKeyboardReleaseEvent )
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import MetaBrush.Render.Util
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( widgetAddClass, widgetAddClasses )
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import MetaBrush.UI.Menu
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( newMenuBar )
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import qualified Paths_MetaBrush as Cabal
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( getDataFileName )
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--------------------------------------------------------------------------------
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main :: IO ()
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main = do
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---------------------------------------------------------
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-- Initialise GTK
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void $ GTK.init Nothing
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Just screen <- GDK.screenGetDefault
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themePath <- Text.pack <$> ( Directory.canonicalizePath =<< Cabal.getDataFileName "theme.css" )
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cssProvider <- GTK.cssProviderNew
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GTK.cssProviderLoadFromPath cssProvider themePath
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GTK.styleContextAddProviderForScreen screen cssProvider 1000
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window <- GTK.windowNew GTK.WindowTypeToplevel
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windowWidgetPath <- GTK.widgetGetPath window
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widgetAddClass window "window"
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GTK.setWindowResizable window True
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GTK.setWindowDecorated window True
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GTK.setWindowTitle window "MetaBrush"
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GTK.windowSetDefaultSize window 800 600
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let
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baseMinWidth, baseMinHeight :: Int32
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baseMinWidth = 480
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baseMinHeight = 240
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windowGeometry <- GDK.newZeroGeometry
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GDK.setGeometryMinWidth windowGeometry baseMinWidth
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GDK.setGeometryMinHeight windowGeometry baseMinHeight
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GTK.windowSetGeometryHints window ( Nothing @GTK.Widget )
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( Just windowGeometry )
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[ GDK.WindowHintsMinSize ]
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iconPath <- Directory.canonicalizePath =<< Cabal.getDataFileName "icon.png"
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GTK.windowSetIconFromFile window iconPath
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colours <- getColours windowWidgetPath
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---------------------------------------------------------
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-- Create base UI elements
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baseOverlay <- GTK.overlayNew
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GTK.setContainerChild window baseOverlay
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uiGrid <- GTK.gridNew
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GTK.setContainerChild baseOverlay uiGrid
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logo <- GTK.boxNew GTK.OrientationVertical 0
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titleBar <- GTK.boxNew GTK.OrientationHorizontal 0
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toolBar <- GTK.boxNew GTK.OrientationVertical 0
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mainPane <- GTK.panedNew GTK.OrientationHorizontal
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panelGrid <- GTK.gridNew
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GTK.gridAttach uiGrid logo 0 0 1 2
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GTK.gridAttach uiGrid titleBar 1 0 2 1
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GTK.gridAttach uiGrid toolBar 0 2 2 1
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GTK.gridAttach uiGrid mainPane 2 2 1 1
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mainView <- GTK.boxNew GTK.OrientationVertical 0
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GTK.panedPack1 mainPane mainView True False
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GTK.panedPack2 mainPane panelGrid False False
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fileBar <- GTK.scrolledWindowNew ( Nothing @GTK.Adjustment ) ( Nothing @GTK.Adjustment )
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viewportGrid <- GTK.gridNew
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infoBar <- GTK.boxNew GTK.OrientationHorizontal 0
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GTK.boxPackStart mainView fileBar False False 0
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GTK.boxPackStart mainView viewportGrid True True 0
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GTK.boxPackStart mainView infoBar False False 0
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---------------------------------------------------------
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-- Background
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widgetAddClass uiGrid "bg"
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---------------------------------------------------------
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-- Title bar
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widgetAddClass titleBar "titleBar"
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--------
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-- Logo
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widgetAddClass logo "logo"
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logoArea <- GTK.drawingAreaNew
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GTK.boxPackStart logo logoArea True True 0
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void $ GTK.onWidgetDraw logoArea
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$ Cairo.renderWithContext ( drawLogo colours )
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------------
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-- Menu bar
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( menuBar, _menu ) <- newMenuBar
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widgetAddClasses menuBar [ "menuBar", "text", "plain" ]
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GTK.boxPackStart titleBar menuBar False False 0
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-- TODO: this is a bit of a workaround to add hover highlight to top-level menu items.
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-- Activating a menu somehow sets the "hover" setting,
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-- so instead we use the "selected" setting for actual hover highlighting.
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topLevelMenuItems <- GTK.containerGetChildren menuBar
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for_ topLevelMenuItems \ topLevelMenuItem -> do
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void $ GTK.onWidgetEnterNotifyEvent topLevelMenuItem \ _ -> do
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flags <- GTK.widgetGetStateFlags topLevelMenuItem
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GTK.widgetSetStateFlags topLevelMenuItem ( GTK.StateFlagsSelected : flags ) True
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pure False
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void $ GTK.onWidgetLeaveNotifyEvent topLevelMenuItem \ _ -> do
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flags <- GTK.widgetGetStateFlags topLevelMenuItem
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GTK.widgetSetStateFlags topLevelMenuItem ( filter ( /= GTK.StateFlagsSelected ) flags ) True
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pure False
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windowIcons <- GTK.boxNew GTK.OrientationHorizontal 0
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widgetAddClasses windowIcons [ "windowIcon" ]
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GTK.boxPackEnd titleBar windowIcons False False 0
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title <- GTK.labelNew ( Just "● New Document (1) – MetaBrush" )
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widgetAddClasses title [ "text", "title", "plain" ]
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GTK.boxSetCenterWidget titleBar ( Just title )
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minimiseButton <- GTK.buttonNew
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fullscreenButton <- GTK.buttonNew
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closeButton <- GTK.buttonNew
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GTK.boxPackStart windowIcons minimiseButton True True 0
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GTK.boxPackStart windowIcons fullscreenButton True True 0
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GTK.boxPackStart windowIcons closeButton True True 0
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minimiseArea <- GTK.drawingAreaNew
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fullscreenArea <- GTK.drawingAreaNew
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closeArea <- GTK.drawingAreaNew
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GTK.containerAdd minimiseButton minimiseArea
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GTK.containerAdd fullscreenButton fullscreenArea
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GTK.containerAdd closeButton closeArea
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void $ GTK.onWidgetDraw minimiseArea
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$ Cairo.renderWithContext
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( drawMinimise colours )
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void $ GTK.onWidgetDraw fullscreenArea \ cairoContext -> do
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Just gdkWindow <- GTK.widgetGetWindow window
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windowState <- GDK.windowGetState gdkWindow
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if any ( \case { GDK.WindowStateFullscreen -> True; GDK.WindowStateMaximized -> True; _ -> False } ) windowState
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then Cairo.renderWithContext ( drawRestoreDown colours ) cairoContext
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else Cairo.renderWithContext ( drawMaximise colours ) cairoContext
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void $ GTK.onWidgetDraw closeArea
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$ Cairo.renderWithContext
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( drawClose colours )
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for_ [ minimiseButton, fullscreenButton, closeButton ] \ button -> do
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widgetAddClass button "windowIcon"
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widgetAddClass closeButton "closeWindowIcon"
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---------------------------------------------------------
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-- Tool bar
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widgetAddClass toolBar "toolBar"
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GTK.widgetSetValign toolBar GTK.AlignStart
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GTK.widgetSetVexpand toolBar True
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selectionTool <- GTK.radioButtonNew ( [] @GTK.RadioButton )
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penTool <- GTK.radioButtonNewFromWidget ( Just selectionTool )
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pathTool <- GTK.radioButtonNew ( [] @GTK.RadioButton )
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brushTool <- GTK.radioButtonNewFromWidget ( Just pathTool )
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metaTool <- GTK.radioButtonNewFromWidget ( Just pathTool )
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toolSep1 <- GTK.boxNew GTK.OrientationVertical 0
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GTK.boxPackStart toolBar selectionTool True True 0
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GTK.boxPackStart toolBar penTool True True 0
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GTK.boxPackStart toolBar toolSep1 True True 0
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GTK.boxPackStart toolBar pathTool True True 0
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GTK.boxPackStart toolBar brushTool True True 0
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GTK.boxPackStart toolBar metaTool True True 0
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for_ [ selectionTool, penTool, pathTool, brushTool, metaTool ] \ tool -> do
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GTK.toggleButtonSetMode tool False -- don't display radio indicator
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widgetAddClass tool "toolItem"
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widgetAddClass toolSep1 "toolBarSeparator"
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GTK.widgetSetTooltipText selectionTool ( Just "Select" )
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GTK.widgetSetTooltipText penTool ( Just "Draw" )
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GTK.widgetSetTooltipText pathTool ( Just "Brush path" )
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GTK.widgetSetTooltipText brushTool ( Just "Brushes" )
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GTK.widgetSetTooltipText metaTool ( Just "Meta-parameters" )
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selectionToolArea <- GTK.drawingAreaNew
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penToolArea <- GTK.drawingAreaNew
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pathToolArea <- GTK.drawingAreaNew
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brushToolArea <- GTK.drawingAreaNew
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metaToolArea <- GTK.drawingAreaNew
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GTK.containerAdd selectionTool selectionToolArea
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GTK.containerAdd penTool penToolArea
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GTK.containerAdd pathTool pathToolArea
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GTK.containerAdd brushTool brushToolArea
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GTK.containerAdd metaTool metaToolArea
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void $ GTK.onWidgetDraw selectionToolArea
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$ Cairo.renderWithContext
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( drawCursorIcon colours )
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void $ GTK.onWidgetDraw penToolArea
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$ Cairo.renderWithContext
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( drawPen colours )
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void $ GTK.onWidgetDraw pathToolArea
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$ Cairo.renderWithContext
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( drawPath colours )
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void $ GTK.onWidgetDraw brushToolArea
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$ Cairo.renderWithContext
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( drawBrush colours )
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void $ GTK.onWidgetDraw metaToolArea
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$ Cairo.renderWithContext
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( drawMeta colours )
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---------------------------------------------------------
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-- File bar
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widgetAddClass fileBar "fileBar"
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fileTabs <- GTK.boxNew GTK.OrientationHorizontal 0
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GTK.containerAdd fileBar fileTabs
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widgetAddClasses fileTabs [ "fileBar", "plain", "text" ]
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fileBarPhantomRadioButton <- GTK.radioButtonNew ( [] @GTK.RadioButton )
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for_ [ 1 .. 12 ] \ i -> do
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-- File tab elements.
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pgButton <- GTK.radioButtonNewWithLabelFromWidget ( Just fileBarPhantomRadioButton ) ( "New Document (" <> Text.pack ( show i ) <> ")" )
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GTK.toggleButtonSetMode pgButton False -- don't display radio indicator
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closeFileButton <- GTK.buttonNewWithLabel "x"
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-- Create box for file tab elements.
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tab <- GTK.boxNew GTK.OrientationHorizontal 0
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widgetAddClasses tab [ "fileBarTab" ]
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GTK.boxPackStart fileTabs tab False False 0
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GTK.boxPackStart tab pgButton True True 0
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GTK.boxPackStart tab closeFileButton False False 0
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widgetAddClasses pgButton [ "fileBarTabButton" ]
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widgetAddClasses closeFileButton [ "fileBarCloseButton" ]
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-- Make both file tab elements activate styling on the whole tab
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-- (e.g. hovering over the close file button should highlight the whole tab).
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void $ GTK.onButtonClicked pgButton do
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isActive <- GTK.toggleButtonGetActive pgButton
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flags <- GTK.widgetGetStateFlags tab
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if isActive
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then GTK.widgetSetStateFlags tab ( GTK.StateFlagsActive : flags ) True
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else GTK.widgetSetStateFlags tab ( filter ( /= GTK.StateFlagsActive ) flags ) True
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{-
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void $ GTK.onButtonClicked closeFileButton do
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closeFileDialog ...
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-}
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for_ @_ @_ @_ @() [ Exists @GTK.IsWidget pgButton, Exists @GTK.IsWidget closeFileButton ] \ ( Exists button ) -> do
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void $ GTK.onWidgetEnterNotifyEvent button \ _ -> do
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flags <- GTK.widgetGetStateFlags tab
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GTK.widgetSetStateFlags tab ( GTK.StateFlagsPrelight : flags ) True
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pure False
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void $ GTK.onWidgetLeaveNotifyEvent button \ _ -> do
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flags <- GTK.widgetGetStateFlags tab
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GTK.widgetSetStateFlags tab ( filter ( /= GTK.StateFlagsPrelight ) flags ) True
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pure False
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GTK.scrolledWindowSetPolicy fileBar GTK.PolicyTypeAutomatic GTK.PolicyTypeNever
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GTK.scrolledWindowSetOverlayScrolling fileBar True
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---------------------------------------------------------
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-- Main viewport
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widgetAddClass viewportGrid "viewport"
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rvRulerCorner <- GTK.revealerNew
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rvLeftRuler <- GTK.revealerNew
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rvTopRuler <- GTK.revealerNew
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viewportOverlay <- GTK.overlayNew
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GTK.gridAttach viewportGrid rvRulerCorner 0 0 1 1
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GTK.gridAttach viewportGrid rvLeftRuler 0 1 1 1
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GTK.gridAttach viewportGrid rvTopRuler 1 0 1 1
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GTK.gridAttach viewportGrid viewportOverlay 1 1 1 1
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rulerCorner <- GTK.boxNew GTK.OrientationVertical 0
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leftRuler <- GTK.boxNew GTK.OrientationVertical 0
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topRuler <- GTK.boxNew GTK.OrientationHorizontal 0
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GTK.containerAdd rvRulerCorner rulerCorner
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GTK.containerAdd rvLeftRuler leftRuler
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GTK.containerAdd rvTopRuler topRuler
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widgetAddClass rulerCorner "ruler"
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widgetAddClass leftRuler "ruler"
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widgetAddClass topRuler "ruler"
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GTK.revealerSetRevealChild rvRulerCorner True
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GTK.revealerSetRevealChild rvLeftRuler True
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GTK.revealerSetRevealChild rvTopRuler True
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GTK.revealerSetTransitionType rvRulerCorner GTK.RevealerTransitionTypeSlideLeft
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GTK.revealerSetTransitionType rvLeftRuler GTK.RevealerTransitionTypeSlideLeft
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GTK.revealerSetTransitionType rvTopRuler GTK.RevealerTransitionTypeSlideUp
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rulerCornerArea <- GTK.drawingAreaNew
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GTK.boxPackStart rulerCorner rulerCornerArea True True 0
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leftRulerArea <- GTK.drawingAreaNew
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GTK.boxPackStart leftRuler leftRulerArea True True 0
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topRulerArea <- GTK.drawingAreaNew
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GTK.boxPackStart topRuler topRulerArea True True 0
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GTK.widgetSetHexpand rulerCorner False
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GTK.widgetSetVexpand rulerCorner False
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GTK.widgetSetHexpand leftRuler False
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GTK.widgetSetVexpand leftRuler True
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GTK.widgetSetHexpand topRuler True
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GTK.widgetSetVexpand topRuler False
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GTK.widgetSetHexpand viewportOverlay True
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GTK.widgetSetVexpand viewportOverlay True
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viewportArea <- GTK.drawingAreaNew
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GTK.setContainerChild viewportOverlay viewportArea
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viewportScrollbarGrid <- GTK.gridNew
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GTK.overlayAddOverlay viewportOverlay viewportScrollbarGrid
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viewportHScrollbar <- GTK.scrollbarNew GTK.OrientationHorizontal ( Nothing @GTK.Adjustment )
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viewportVScrollbar <- GTK.scrollbarNew GTK.OrientationVertical ( Nothing @GTK.Adjustment )
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GTK.widgetSetValign viewportHScrollbar GTK.AlignEnd
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GTK.widgetSetHalign viewportVScrollbar GTK.AlignEnd
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GTK.widgetSetVexpand viewportVScrollbar True
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GTK.widgetSetHexpand viewportHScrollbar True
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GTK.gridAttach viewportScrollbarGrid viewportHScrollbar 0 1 1 1
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GTK.gridAttach viewportScrollbarGrid viewportVScrollbar 1 0 1 1
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widgetAddClass viewportHScrollbar "viewportScrollbar"
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widgetAddClass viewportVScrollbar "viewportScrollbar"
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---------------------------------------------------------
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-- Panels
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widgetAddClass panelGrid "panels"
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---------------------------------------------------------
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-- Info bar
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widgetAddClasses infoBar [ "infoBar", "monospace", "contrast" ]
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zoomBox <- GTK.boxNew GTK.OrientationHorizontal 0
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cursorPosBox <- GTK.boxNew GTK.OrientationHorizontal 0
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topLeftPosBox <- GTK.boxNew GTK.OrientationHorizontal 0
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botRightPosBox <- GTK.boxNew GTK.OrientationHorizontal 0
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for_ [ botRightPosBox, topLeftPosBox, cursorPosBox, zoomBox ] \ box -> do
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GTK.boxPackEnd infoBar box False False 0
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widgetAddClass box "infoBarBox"
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-------------
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-- Magnifier
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magnifierArea <- GTK.drawingAreaNew
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zoomText <- GTK.labelNew ( Just "300%" )
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GTK.boxPackStart zoomBox magnifierArea True True 0
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GTK.boxPackStart zoomBox zoomText True True 0
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void $ GTK.onWidgetDraw magnifierArea \ctx ->
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( `Cairo.renderWithContext` ctx ) $ do
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Cairo.scale 0.9 0.9
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Cairo.translate 14 10
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drawMagnifier colours
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-------------------
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-- Cursor position
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cursorPosArea <- GTK.drawingAreaNew
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cursorPosText <- GTK.labelNew ( Just "x: 212.12 px\ny: 120.23 px" )
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GTK.boxPackStart cursorPosBox cursorPosArea False False 0
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GTK.boxPackStart cursorPosBox cursorPosText False False 0
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void $ GTK.onWidgetDraw cursorPosArea \ctx ->
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( `Cairo.renderWithContext` ctx ) $ do
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Cairo.scale 0.75 0.75
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Cairo.translate 10 7
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drawCursorIcon colours
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---------------------
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-- Top left position
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topLeftPosArea <- GTK.drawingAreaNew
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topLeftPosText <- GTK.labelNew ( Just "x: 212.12 px\ny: 120.23 px" )
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GTK.boxPackStart topLeftPosBox topLeftPosArea False False 0
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GTK.boxPackStart topLeftPosBox topLeftPosText False False 0
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void $ GTK.onWidgetDraw topLeftPosArea
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$ Cairo.renderWithContext
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( drawTopLeftCornerRect colours )
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-------------------------
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-- Bottom right position
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botRightPosArea <- GTK.drawingAreaNew
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botRightPosText <- GTK.labelNew ( Just "x: 212.12 px\ny: 120.23 px" )
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GTK.boxPackStart botRightPosBox botRightPosArea False False 0
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GTK.boxPackStart botRightPosBox botRightPosText False False 0
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void $ GTK.onWidgetDraw botRightPosArea \ctx ->
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( `Cairo.renderWithContext` ctx ) $ do
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Cairo.scale -1 -1
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Cairo.translate -40 -40
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drawTopLeftCornerRect colours
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-------------------------
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for_ [ magnifierArea, cursorPosArea, topLeftPosArea, botRightPosArea ] \ area -> do
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widgetAddClass area "infoBarIcon"
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GTK.widgetSetSizeRequest area 40 40 -- not sure why this is needed...?
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for_ [ zoomText, cursorPosText, topLeftPosText, botRightPosText ] \ info -> do
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widgetAddClass info "infoBarInfo"
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---------------------------------------------------------
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||
-- Actions
|
||
|
||
GTK.widgetAddEvents window [GDK.EventMaskKeyPressMask, GDK.EventMaskKeyReleaseMask]
|
||
|
||
_ <- GTK.onButtonClicked closeButton GTK.mainQuit
|
||
_ <- GTK.onButtonClicked minimiseButton ( GTK.windowIconify window )
|
||
_ <- GTK.onButtonClicked fullscreenButton do
|
||
Just gdkWindow <- GTK.widgetGetWindow window
|
||
windowState <- GDK.windowGetState gdkWindow
|
||
if GDK.WindowStateFullscreen `elem` windowState
|
||
then GTK.windowUnfullscreen window
|
||
else
|
||
if GDK.WindowStateMaximized `elem` windowState
|
||
then GTK.windowUnmaximize window
|
||
else GTK.windowMaximize window
|
||
|
||
_ <- GTK.onWidgetKeyPressEvent window handleKeyboardPressEvent
|
||
_ <- GTK.onWidgetKeyReleaseEvent window handleKeyboardReleaseEvent
|
||
_ <- GTK.onWidgetDestroy window GTK.mainQuit
|
||
|
||
---------------------------------------------------------
|
||
-- GTK main loop
|
||
|
||
GTK.widgetShowAll window
|
||
GTK.main
|
||
|
||
exitSuccess
|
||
|
||
|
||
data Exists c where
|
||
Exists :: c a => a -> Exists c |