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-rw-r--r--src/gui/piePreviewRenderer.vala201
1 files changed, 104 insertions, 97 deletions
diff --git a/src/gui/piePreviewRenderer.vala b/src/gui/piePreviewRenderer.vala
index 6fff397..626ab73 100644
--- a/src/gui/piePreviewRenderer.vala
+++ b/src/gui/piePreviewRenderer.vala
@@ -1,4 +1,4 @@
-/*
+/*
Copyright (c) 2011 by Simon Schneegans
This program is free software: you can redistribute it and/or modify it
@@ -12,110 +12,117 @@ 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/>.
+this program. If not, see <http://www.gnu.org/licenses/>.
*/
using GLib.Math;
namespace GnomePie {
-/////////////////////////////////////////////////////////////////////////
+/////////////////////////////////////////////////////////////////////////
/// A complex class which is able to draw the preview of a Pie. It can
/// manipulate the displayed Pie as well.
/////////////////////////////////////////////////////////////////////////
public class PiePreviewRenderer : GLib.Object {
-
+
/////////////////////////////////////////////////////////////////////
/// These signals get emitted when a slice is added, removed or
/// manipulated.
/////////////////////////////////////////////////////////////////////
-
+
public signal void on_add_slice(int position);
public signal void on_remove_slice(int position);
public signal void on_edit_slice(int position);
-
+
/////////////////////////////////////////////////////////////////////
/// True, when there is currently a drag going on.
/////////////////////////////////////////////////////////////////////
-
+
public bool drag_n_drop_mode { get; private set; default=false; }
-
+
/////////////////////////////////////////////////////////////////////
/// A list containing all SliceRenderers of this Pie.
/////////////////////////////////////////////////////////////////////
-
+
public Gee.ArrayList<PiePreviewSliceRenderer?> slices;
-
+
/////////////////////////////////////////////////////////////////////
/// When a Slice is moved within a Pie it is temporarily removed.
/// If so, it is stored in this member.
/////////////////////////////////////////////////////////////////////
-
+
public PiePreviewSliceRenderer hidden_group { get; private set; default=null; }
-
+
/////////////////////////////////////////////////////////////////////
/// The add sign which indicates that a new Slice could be added.
/////////////////////////////////////////////////////////////////////
-
+
private PiePreviewAddSign add_sign = null;
-
+
/////////////////////////////////////////////////////////////////////
/// The object which renders the name of the currently selected Slice
/// in the middle.
/////////////////////////////////////////////////////////////////////
-
+
private PiePreviewCenter center_renderer = null;
private enum CenterDisplay { NONE, ACTIVE_SLICE, DROP, ADD, DELETE }
-
+
/////////////////////////////////////////////////////////////////////
/// Some members storing some inter-frame-information.
/////////////////////////////////////////////////////////////////////
private int active_slice = -1;
- private double angle = 0.0;
+ private double angle = 0.0;
private double mouse_x = 0.0;
private double mouse_y = 0.0;
-
+
+ /////////////////////////////////////////////////////////////////////
+ /// The parent DrawingArea.
+ /////////////////////////////////////////////////////////////////////
+
+ public unowned Gtk.DrawingArea parent;
+
/////////////////////////////////////////////////////////////////////
/// C'tor, initializes members.
/////////////////////////////////////////////////////////////////////
-
- public PiePreviewRenderer() {
- this.slices = new Gee.ArrayList<PiePreviewSliceRenderer?>();
+
+ public PiePreviewRenderer(Gtk.DrawingArea parent) {
+ this.parent = parent;
+ this.slices = new Gee.ArrayList<PiePreviewSliceRenderer?>();
this.center_renderer = new PiePreviewCenter(this);
this.add_sign = new PiePreviewAddSign(this);
this.add_sign.load();
-
+
this.add_sign.on_clicked.connect((pos) => {
this.on_add_slice(pos);
});
}
-
+
/////////////////////////////////////////////////////////////////////
/// Loads an Pie. All members are initialized accordingly.
/////////////////////////////////////////////////////////////////////
-
+
public void load_pie(Pie pie) {
this.slices.clear();
-
+
foreach (var group in pie.action_groups) {
var renderer = new PiePreviewSliceRenderer(this);
renderer.load(group);
-
+
this.add_slice_renderer(renderer);
this.connect_siganls(renderer);
}
-
+
this.active_slice = -1;
this.update_sizes();
this.update_positions(false);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Enables or disables the drag n dropn mode.
/////////////////////////////////////////////////////////////////////
-
+
public void set_dnd_mode(bool dnd) {
if (this.drag_n_drop_mode != dnd) {
this.drag_n_drop_mode = dnd;
@@ -123,144 +130,144 @@ public class PiePreviewRenderer : GLib.Object {
this.update_sizes();
}
}
-
+
/////////////////////////////////////////////////////////////////////
/// Returns the number of Slices.
/////////////////////////////////////////////////////////////////////
-
+
public int slice_count() {
- if (this.drag_n_drop_mode && !(this.slices.size == 0))
+ if (this.drag_n_drop_mode && !(this.slices.size == 0))
return slices.size+1;
-
+
return slices.size;
}
-
+
/////////////////////////////////////////////////////////////////////
/// Returns the index of the currently hovered Slice.
/////////////////////////////////////////////////////////////////////
-
+
public int get_active_slice() {
if (this.slices.size == 0)
return 0;
-
+
if (this.drag_n_drop_mode)
return (int)(this.angle/(2*PI)*this.slice_count() + 0.5) % this.slice_count();
-
+
return this.active_slice;
}
-
+
/////////////////////////////////////////////////////////////////////
/// Returns the Icon of the currently hovered Slice.
/////////////////////////////////////////////////////////////////////
-
+
public Icon get_active_icon() {
if (this.active_slice >= 0 && this.active_slice < this.slices.size)
return this.slices[this.active_slice].icon;
else
return new Icon("", 24);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Draws the entire Pie to the given context.
/////////////////////////////////////////////////////////////////////
-
+
public void draw(double frame_time, Cairo.Context ctx) {
this.add_sign.draw(frame_time, ctx);
this.center_renderer.draw(frame_time, ctx);
-
+
foreach (var slice in this.slices)
slice.draw(frame_time, ctx);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Called when the mouse leaves the drawing area of this renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void on_mouse_leave() {
this.add_sign.hide();
this.update_positions();
this.update_center(CenterDisplay.NONE);
-
+
foreach (var slice in this.slices)
slice.on_mouse_leave();
}
-
+
/////////////////////////////////////////////////////////////////////
/// Called when the mouse enters the drawing area of this renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void on_mouse_enter() {
this.add_sign.show();
this.update_positions();
}
-
+
/////////////////////////////////////////////////////////////////////
/// Called when the mouse moves in the drawing area of this renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void on_mouse_move(double x, double y) {
this.mouse_x = x;
this.mouse_y = y;
-
+
this.angle = acos(x/sqrt(x*x + y*y));
if (y < 0) this.angle = 2*PI - this.angle;
-
+
if (!this.drag_n_drop_mode)
this.active_slice = -1;
-
+
bool delete_hovered = false;
-
+
for (int i=0; i<this.slices.size; ++i)
if (slices[i].on_mouse_move(this.angle, x, y) && !this.drag_n_drop_mode) {
this.active_slice = i;
delete_hovered = slices[i].delete_hovered;
}
-
+
if (this.drag_n_drop_mode) this.update_center(CenterDisplay.DROP);
else if (this.active_slice < 0) this.update_center(CenterDisplay.ADD);
else if (delete_hovered) this.update_center(CenterDisplay.DELETE);
else this.update_center(CenterDisplay.ACTIVE_SLICE);
-
+
this.add_sign.on_mouse_move(this.angle);
-
+
this.update_positions();
}
-
+
/////////////////////////////////////////////////////////////////////
/// Called when a mouse button is pressed over this renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void on_button_press() {
for (int i=0; i<this.slices.size; ++i)
this.slices[i].on_button_press(this.mouse_x, this.mouse_y);
this.add_sign.on_button_press(this.mouse_x, this.mouse_y);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Called when a mouse button is released over this renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void on_button_release() {
for (int i=0; i<this.slices.size; ++i)
this.slices[i].on_button_release(this.mouse_x, this.mouse_y);
this.add_sign.on_button_release(this.mouse_x, this.mouse_y);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Adds a new Slice to the renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void add_group(ActionGroup group, int at_position = -1) {
var renderer = new PiePreviewSliceRenderer(this);
renderer.load(group);
this.add_slice_renderer(renderer, at_position);
this.connect_siganls(renderer);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Removes a Slice from the renderer.
/////////////////////////////////////////////////////////////////////
-
+
public void remove_group(int index) {
if (this.slices.size > index) {
this.slices.remove_at(index);
@@ -268,22 +275,22 @@ public class PiePreviewRenderer : GLib.Object {
this.update_sizes();
}
}
-
+
/////////////////////////////////////////////////////////////////////
/// Hides the Slice at the given position temporarily.
/////////////////////////////////////////////////////////////////////
-
+
public void hide_group(int index) {
if (this.slices.size > index) {
this.hidden_group = this.slices[index];
this.remove_group(index);
}
}
-
+
/////////////////////////////////////////////////////////////////////
/// Re-shows a Slice which has been hidden before.
/////////////////////////////////////////////////////////////////////
-
+
public void show_hidden_group_at(int index) {
if (this.slices.size >= index && this.hidden_group != null) {
this.hidden_group.set_position(index, false);
@@ -291,78 +298,78 @@ public class PiePreviewRenderer : GLib.Object {
this.hidden_group = null;
}
}
-
+
/////////////////////////////////////////////////////////////////////
/// Updates a Slice at the given position.
/////////////////////////////////////////////////////////////////////
-
+
public void update_group(ActionGroup group, int index) {
if (this.slices.size > index) {
var renderer = new PiePreviewSliceRenderer(this);
this.slices.set(index, renderer);
renderer.load(group);
-
+
this.connect_siganls(renderer);
-
+
this.update_positions(false);
this.update_sizes();
}
}
-
+
/////////////////////////////////////////////////////////////////////
/// Disables all quickactions of this pie preview.
/////////////////////////////////////////////////////////////////////
-
+
public void disable_quickactions() {
foreach (var slice in this.slices)
slice.disable_quickactions();
}
-
+
/////////////////////////////////////////////////////////////////////
/// Helper method which adds a new Slice to the given position.
/////////////////////////////////////////////////////////////////////
-
+
private void add_slice_renderer(PiePreviewSliceRenderer renderer, int at_position = -1) {
if (at_position < 0 || at_position >= this.slices.size)
this.slices.add(renderer);
else
this.slices.insert(at_position, renderer);
-
+
this.update_positions(false);
this.update_sizes();
}
-
+
/////////////////////////////////////////////////////////////////////
/// Helper method which connects all neccessary signals of a newly
/// added Slice.
/////////////////////////////////////////////////////////////////////
-
+
private void connect_siganls(PiePreviewSliceRenderer renderer) {
renderer.on_clicked.connect((pos) => {
this.on_edit_slice(pos);
});
-
+
renderer.on_remove.connect((pos) => {
this.on_remove_slice(pos);
});
}
-
+
/////////////////////////////////////////////////////////////////////
/// Moves all slices to their positions. This may happen smoothly if
/// desired.
/////////////////////////////////////////////////////////////////////
-
+
private void update_positions(bool smoothly = true) {
if (this.slices.size > 0) {
if (this.add_sign.visible) {
int add_position = 0;
add_position = (int)(this.angle/(2*PI)*this.slice_count()) % this.slice_count();
this.add_sign.set_position(add_position);
-
+
for (int i=0; i<this.slices.size; ++i) {
this.slices[i].set_position(i, smoothly);
}
-
+
} else if (this.drag_n_drop_mode) {
int add_position = 0;
add_position = (int)(this.angle/(2*PI)*this.slice_count() + 0.5) % this.slice_count();
@@ -370,45 +377,45 @@ public class PiePreviewRenderer : GLib.Object {
for (int i=0; i<this.slices.size; ++i) {
this.slices[i].set_position(i >= add_position ? i+1 : i, smoothly);
}
-
+
this.update_center(CenterDisplay.DROP);
-
+
} else {
for (int i=0; i<this.slices.size; ++i) {
this.slices[i].set_position(i, smoothly);
}
-
+
if (this.active_slice < 0) this.update_center(CenterDisplay.NONE);
else this.update_center(CenterDisplay.ACTIVE_SLICE);
}
}
}
-
+
/////////////////////////////////////////////////////////////////////
- /// Resizes all slices to their new sizes. This may happen smoothly
+ /// Resizes all slices to their new sizes. This may happen smoothly
/// if desired.
/////////////////////////////////////////////////////////////////////
-
+
private void update_sizes() {
double size = 1.0;
if (this.slice_count() > 20) size = 0.5;
else if (this.slice_count() > 8) size = 1.0 - (double)(this.slice_count() - 8)/24.0;
-
+
this.add_sign.set_size(size);
-
- for (int i=0; i<this.slices.size; ++i)
+
+ for (int i=0; i<this.slices.size; ++i)
this.slices[i].set_size(size);
}
-
+
/////////////////////////////////////////////////////////////////////
/// Displays a new text in the middle of the preview.
/////////////////////////////////////////////////////////////////////
-
+
private void update_center(CenterDisplay display) {
switch (display) {
case CenterDisplay.ACTIVE_SLICE:
if (this.active_slice >= 0 && this.active_slice < this.slices.size)
- this.center_renderer.set_text("<b>" + GLib.Markup.escape_text(slices[this.active_slice].name) + "</b>\n<small>"
+ this.center_renderer.set_text("<b>" + GLib.Markup.escape_text(slices[this.active_slice].name) + "</b>\n<small>"
+ _("Click to edit") + "\n" + _("Drag to move") + "</small>");
break;
case CenterDisplay.ADD:
@@ -423,7 +430,7 @@ public class PiePreviewRenderer : GLib.Object {
break;
case CenterDisplay.DELETE:
if (this.active_slice >= 0 && this.active_slice < this.slices.size)
- this.center_renderer.set_text("<b>" + GLib.Markup.escape_text(slices[this.active_slice].name) + "</b>\n<small>"
+ this.center_renderer.set_text("<b>" + GLib.Markup.escape_text(slices[this.active_slice].name) + "</b>\n<small>"
+ _("Click to delete") + "\n" + _("Drag to move") + "</small>");
break;
default:
generated by cgit v1.2.3 (git 2.25.1) at 2024-05-10 06:12:03 +0000