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Diffstat (limited to 'src/themes/theme.vala')
| -rw-r--r-- | src/themes/theme.vala | 489 |
1 files changed, 489 insertions, 0 deletions
diff --git a/src/themes/theme.vala b/src/themes/theme.vala new file mode 100644 index 0000000..fa6f55a --- /dev/null +++ b/src/themes/theme.vala @@ -0,0 +1,489 @@ +/* +Copyright (c) 2011 by Simon Schneegans + +This program is free software: you can redistribute it and/or modify it +under the terms of the GNU General Public License as published by the Free +Software Foundation, either version 3 of the License, or (at your option) +any later version. + +This program is distributed in the hope that it will be useful, but WITHOUT +ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for +more details. + +You should have received a copy of the GNU General Public License along with +this program. If not, see <http:www.gnu.org/licenses/>. +*/ + +using GLib.Math; + +namespace GnomePie { + +///////////////////////////////////////////////////////////////////////// +/// A theme of Gnome-Pie. Can be loaded from XML-Files. +///////////////////////////////////////////////////////////////////////// + +public class Theme : GLib.Object { + + ///////////////////////////////////////////////////////////////////// + /// Properties of a theme. + ///////////////////////////////////////////////////////////////////// + + public string directory {get; private set; default="";} + public string name {get; private set; default="";} + public string description {get; private set; default="";} + public string author {get; private set; default="";} + public string email {get; private set; default="";} + public double radius {get; private set; default=150;} + public double max_zoom {get; private set; default=1.2;} + public double zoom_range {get; private set; default=0.2;} + public double transition_time {get; private set; default=0.5;} + public double fade_in_time {get; private set; default=0.2;} + public double fade_out_time {get; private set; default=0.1;} + public double fade_in_zoom {get; private set; default=1.0;} + public double fade_out_zoom {get; private set; default=1.0;} + public double fade_in_rotation {get; private set; default=0.0;} + public double fade_out_rotation{get; private set; default=0.0;} + public double springiness {get; private set; default=0.0;} + public double center_radius {get; private set; default=90.0;} + public double active_radius {get; private set; default=45.0;} + public double slice_radius {get; private set; default=32.0;} + public double slice_gap {get; private set; default=14.0;} + public bool caption {get; private set; default=false;} + public string caption_font {get; private set; default="sans 12";} + public int caption_width {get; private set; default=100;} + public int caption_height {get; private set; default=100;} + public double caption_position {get; private set; default=0.0;} + public Color caption_color {get; private set; default=new Color();} + + public Gee.ArrayList<CenterLayer?> center_layers {get; private set;} + public Gee.ArrayList<SliceLayer?> active_slice_layers {get; private set;} + public Gee.ArrayList<SliceLayer?> inactive_slice_layers {get; private set;} + + ///////////////////////////////////////////////////////////////////// + /// C'tor, creates a theme object for a given theme directory. This + /// directory should contain a theme.xml file. + ///////////////////////////////////////////////////////////////////// + + public Theme(string dir) { + this.center_layers = new Gee.ArrayList<CenterLayer?>(); + this.active_slice_layers = new Gee.ArrayList<SliceLayer?>(); + this.inactive_slice_layers = new Gee.ArrayList<SliceLayer?>(); + + this.directory = dir; + + this.load(); + } + + ///////////////////////////////////////////////////////////////////// + /// Loads the theme from its directory. Images have to be loaded + /// explicitly. + ///////////////////////////////////////////////////////////////////// + + public void load() { + this.center_layers.clear(); + this.active_slice_layers.clear(); + this.inactive_slice_layers.clear(); + + Xml.Parser.init(); + string path = this.directory + "/theme.xml"; + + Xml.Doc* themeXML = Xml.Parser.parse_file(path); + if (themeXML == null) { + warning("Error parsing theme: \"" + path + "\" not found!"); + return; + } + + Xml.Node* root = themeXML->get_root_element(); + if (root == null) { + delete themeXML; + warning("Invalid theme \"" + this.directory + "\": theme.xml is empty!"); + return; + } + + this.parse_root(root); + + delete themeXML; + Xml.Parser.cleanup(); + + this.radius *= max_zoom; + } + + ///////////////////////////////////////////////////////////////////// + /// Loads all images of the theme. + ///////////////////////////////////////////////////////////////////// + + public void load_images() { + foreach (var layer in this.center_layers) + layer.load_image(); + foreach (var layer in this.active_slice_layers) + layer.load_image(); + foreach (var layer in this.inactive_slice_layers) + layer.load_image(); + } + + ///////////////////////////////////////////////////////////////////// + /// The following methods parse specific parts of the theme file. + /// Nothing special here, just some boring code. + ///////////////////////////////////////////////////////////////////// + + private void parse_root(Xml.Node* root) { + for (Xml.Attr* attribute = root->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "name": + name = attr_content; + break; + case "description": + description = attr_content; + break; + case "email": + email = attr_content; + break; + case "author": + author = attr_content; + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <theme> element!"); + break; + } + } + for (Xml.Node* node = root->children; node != null; node = node->next) { + if (node->type == Xml.ElementType.ELEMENT_NODE) { + parse_pie(node); + } + } + } + + ///////////////////////////////////////////////////////////////////// + /// Parses a <pie> element from the theme.xml file. + ///////////////////////////////////////////////////////////////////// + + private void parse_pie(Xml.Node* pie) { + for (Xml.Attr* attribute = pie->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "radius": + radius = double.parse(attr_content) * Config.global.global_scale; + break; + case "maxzoom": + max_zoom = double.parse(attr_content); + break; + case "zoomrange": + zoom_range = double.parse(attr_content); + break; + case "transitiontime": + transition_time = double.parse(attr_content); + break; + case "fadeintime": + fade_in_time = double.parse(attr_content); + break; + case "fadeouttime": + fade_out_time = double.parse(attr_content); + break; + case "fadeinzoom": + fade_in_zoom = double.parse(attr_content); + break; + case "fadeoutzoom": + fade_out_zoom = double.parse(attr_content); + break; + case "fadeinrotation": + fade_in_rotation = double.parse(attr_content); + break; + case "fadeoutrotation": + fade_out_rotation = double.parse(attr_content); + break; + case "springiness": + springiness = double.parse(attr_content); + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <pie> element!"); + break; + } + } + for (Xml.Node* node = pie->children; node != null; node = node->next) { + if (node->type == Xml.ElementType.ELEMENT_NODE) { + string element_name = node->name.down(); + switch (element_name) { + case "center": + parse_center(node); + break; + case "slices": + parse_slices(node); + break; + case "caption": + caption = true; + parse_caption(node); + break; + default: + warning("Invalid child element \"" + element_name + "\" in <pie> element!"); + break; + } + } + } + } + + ///////////////////////////////////////////////////////////////////// + /// Parses a <center> element from the theme.xml file. + ///////////////////////////////////////////////////////////////////// + + private void parse_center(Xml.Node* center) { + for (Xml.Attr* attribute = center->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "radius": + center_radius = double.parse(attr_content) * Config.global.global_scale; + break; + case "activeradius": + active_radius = double.parse(attr_content) * Config.global.global_scale; + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <center> element!"); + break; + } + } + for (Xml.Node* node = center->children; node != null; node = node->next) { + if (node->type == Xml.ElementType.ELEMENT_NODE) { + string element_name = node->name.down(); + + if (element_name == "center_layer") { + parse_center_layer(node); + } else { + warning("Invalid child element \"" + element_name + "\" in <center> element!"); + } + } + } + } + + ///////////////////////////////////////////////////////////////////// + /// Parses a <slices> element from the theme.xml file. + ///////////////////////////////////////////////////////////////////// + + private void parse_slices(Xml.Node* slices) { + for (Xml.Attr* attribute = slices->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "radius": + slice_radius = double.parse(attr_content) * Config.global.global_scale; + break; + case "mingap": + slice_gap = double.parse(attr_content) * Config.global.global_scale; + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <slices> element!"); + break; + } + } + for (Xml.Node* node = slices->children; node != null; node = node->next) { + if (node->type == Xml.ElementType.ELEMENT_NODE) { + string element_name = node->name.down(); + + if (element_name == "activeslice" || element_name == "inactiveslice") { + parse_slice_layers(node); + } else { + warning("Invalid child element \"" + element_name + "\" in <slices> element!"); + } + } + } + } + + ///////////////////////////////////////////////////////////////////// + /// Parses a <center_layer> element from the theme.xml file. + ///////////////////////////////////////////////////////////////////// + + private void parse_center_layer(Xml.Node* layer) { + + string file = ""; + double active_rotation_speed = 0.0; + double inactive_rotation_speed = 0.0; + double active_scale = 1.0; + double inactive_scale = 1.0; + double active_alpha = 1.0; + double inactive_alpha = 1.0; + bool active_colorize = false; + bool inactive_colorize = false; + CenterLayer.RotationMode active_rotation_mode = CenterLayer.RotationMode.AUTO; + CenterLayer.RotationMode inactive_rotation_mode = CenterLayer.RotationMode.AUTO; + + for (Xml.Attr* attribute = layer->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "file": + file = attr_content; + break; + case "active_scale": + active_scale = double.parse(attr_content); + break; + case "active_alpha": + active_alpha = double.parse(attr_content); + break; + case "active_rotationmode": + switch (attr_content.down()) { + case "auto": + active_rotation_mode = CenterLayer.RotationMode.AUTO; + break; + case "turn_to_active": + active_rotation_mode = CenterLayer.RotationMode.TO_ACTIVE; + break; + case "turn_to_mouse": + active_rotation_mode = CenterLayer.RotationMode.TO_MOUSE; + break; + default: + warning("Invalid value \"" + attr_content + "\" for attribute \"" + attr_name + "\" in <center_layer> element!"); + break; + } + break; + case "active_rotationspeed": + active_rotation_speed = double.parse(attr_content); + break; + case "active_colorize": + active_colorize = bool.parse(attr_content); + break; + case "inactive_scale": + inactive_scale = double.parse(attr_content); + break; + case "inactive_alpha": + inactive_alpha = double.parse(attr_content); + break; + case "inactive_rotationmode": + switch (attr_content.down()) { + case "auto": + inactive_rotation_mode = CenterLayer.RotationMode.AUTO; + break; + case "turn_to_active": + inactive_rotation_mode = CenterLayer.RotationMode.TO_ACTIVE; + break; + case "turn_to_mouse": + inactive_rotation_mode = CenterLayer.RotationMode.TO_MOUSE; + break; + default: + warning("Invalid value \"" + attr_content + "\" for attribute \"" + attr_name + "\" in <center_layer> element!"); + break; + } + break; + case "inactive_rotationspeed": + inactive_rotation_speed = double.parse(attr_content); + break; + case "inactive_colorize": + inactive_colorize = bool.parse(attr_content); + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <center_layer> element!"); + break; + } + } + + double max_scale = GLib.Math.fmax(active_scale, inactive_scale); + center_layers.add(new CenterLayer(directory + "/" + file, (int)(center_radius*max_scale), active_scale/max_scale, active_rotation_speed, active_alpha, active_colorize, active_rotation_mode, + inactive_scale/max_scale, inactive_rotation_speed, inactive_alpha, inactive_colorize, inactive_rotation_mode)); + } + + ///////////////////////////////////////////////////////////////////// + /// Parses a <slice_layer> element from the theme.xml file. + ///////////////////////////////////////////////////////////////////// + + private void parse_slice_layers(Xml.Node* slice) { + for (Xml.Node* layer = slice->children; layer != null; layer = layer->next) { + if (layer->type == Xml.ElementType.ELEMENT_NODE) { + string element_name = layer->name.down(); + + if (element_name == "slice_layer") { + string file = ""; + double scale = 1.0; + bool is_icon = false; + bool colorize = false; + + for (Xml.Attr* attribute = layer->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "file": + file = attr_content; + break; + case "scale": + scale = double.parse(attr_content); + break; + case "type": + if (attr_content == "icon") + is_icon = true; + else if (attr_content != "file") + warning("Invalid attribute content " + attr_content + " for attribute " + attr_name + " in <slice_layer> element!"); + break; + case "colorize": + colorize = bool.parse(attr_content); + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <slice_layer> element!"); + break; + } + } + + if (file != "") + file = directory + "/" + file; + + int size = 2*(int)(slice_radius*scale*max_zoom); + + if (slice->name.down() == "activeslice") { + active_slice_layers.add(new SliceLayer(file, size, colorize, is_icon)); + } else { + inactive_slice_layers.add(new SliceLayer(file, size, colorize, is_icon)); + } + + } else { + warning("Invalid child element \"" + element_name + "\" in <" + slice->name + "> element!"); + } + } + } + } + + ///////////////////////////////////////////////////////////////////// + /// Parses a <caption> element from the theme.xml file. + ///////////////////////////////////////////////////////////////////// + + private void parse_caption(Xml.Node* caption) { + for (Xml.Attr* attribute = caption->properties; attribute != null; attribute = attribute->next) { + string attr_name = attribute->name.down(); + string attr_content = attribute->children->content; + + switch (attr_name) { + case "font": + caption_font = attr_content; + break; + case "width": + caption_width = (int)(int.parse(attr_content) * Config.global.global_scale); + if (caption_width % 2 == 1) + --caption_width; + break; + case "height": + caption_height = (int)(int.parse(attr_content) * Config.global.global_scale); + if (caption_height % 2 == 1) + --caption_height; + break; + case "position": + caption_position = double.parse(attr_content) * Config.global.global_scale; + break; + case "color": + caption_color = new Color.from_string(attr_content); + break; + default: + warning("Invalid attribute \"" + attr_name + "\" in <caption> element!"); + break; + } + } + + } + +} + +} |