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87 lines
2.9 KiB
87 lines
2.9 KiB
-- Register all Toolbar actions and intialize all UI stuff |
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function initUi() |
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app.registerUi({["menu"] = "Migrate font sizes with factor displayDPI / 72", ["callback"] = "migrate"}); |
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app.registerUi({["menu"] = "Show font size migration dialog", ["callback"] = "showDialog"}); |
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lgiInstallPaths = "/usr/share/lua/5.3/?.lua; /usr/local/share/lua/5.3/?.lua" -- change this if your lgi.lua file is located in a different directory |
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package.path = package.path .. ";../?.lua;" .. lgiInstallPaths |
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sourcePath = debug.getinfo(1).source:match("@?(.*/)") |
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end |
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function migrate() |
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local displayDpi = app.getDisplayDpi() |
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local dpiNormalizationFactor = 72 |
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local factor = displayDpi / dpiNormalizationFactor |
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-- print("Display DPI is " .. displayDpi .. " => scaling by factor " .. displayDpi .. "/72 = " .. factor) |
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local result = app.msgbox("Display DPI is " .. displayDpi .. ". By proceeding the font sizes of all text elements will be scaled by the factor " .. displayDpi .. "/72 = " .. factor, {[1]="Cancel", [2]="OK"}) |
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if result == 2 then |
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resize(factor) |
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end |
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end |
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local currDpi |
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function showDialog() |
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local hasLgi, lgi = pcall(require, "lgi") |
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if not hasLgi then |
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app.msgbox("You need to have the Lua lgi-module installed in order to use the GUI for migrating font sizes. \n\n Also check the lgi module install paths in the file \n\n " .. sourcePath .. "main.lua \n\n Currently \n\n" .. lgiInstallPaths .. "\n\n is specified", {[1]="OK"}) |
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return |
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end |
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--lgi module has been found |
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local Gtk = lgi.Gtk |
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local Gdk = lgi.Gdk |
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local assert = lgi.assert |
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local builder = Gtk.Builder() |
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assert(builder:add_from_file(sourcePath .. "dialog.glade")) |
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local ui = builder.objects |
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local dialog = ui.dlgMigrateFontSizes |
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if not currDpi then |
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currDpi = app.getDisplayDpi() |
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end |
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ui.spbtOldDpi:set_value(currDpi) |
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ui.lblCurrentDpi:set_text(app.getDisplayDpi()) |
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-- Connect actions |
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function ui.btApply.on_clicked() |
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local factor = ui.spbtScaleFactor:get_value() |
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resize(factor) |
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end |
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function ui.btCancel.on_clicked() |
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dialog:destroy() |
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end |
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function ui.spbtScaleFactor.on_value_changed() |
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factor = ui.spbtScaleFactor:get_value() |
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currDpi = math.floor(factor*72+0.5) |
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ui.spbtOldDpi:set_value(currDpi) |
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end |
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function ui.spbtOldDpi.on_value_changed() |
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oldDpi = ui.spbtOldDpi:get_value() |
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ui.spbtScaleFactor:set_value(oldDpi/72) |
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end |
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dialog:show_all() |
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end |
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function resize(factor) |
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local docStructure = app.getDocumentStructure() |
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local numPages = #docStructure["pages"] |
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local page = docStructure["currentPage"] |
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local layer = docStructure["pages"][page]["currentLayer"] |
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for i=1, numPages do |
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app.setCurrentPage(i) |
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local numLayers = #docStructure["pages"][page]["layers"] |
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for j=1, numLayers do |
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app.setCurrentLayer(j) |
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app.scaleTextElements(factor) |
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end |
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end |
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app.setCurrentPage(page) |
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app.setCurrentLayer(layer) |
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end
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