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Viewing changes to panel-plugin/resizer-widget.cpp

  • Committer: Jackson Doak
  • Date: 2015-02-18 19:32:33 UTC
  • mfrom: (1.3.3)
  • Revision ID: noskcaj@ubuntu.com-20150218193233-e0yz6rm35agg7wx5
New upstream release.

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panel-plugin/resizer-widget.cpp
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#include "resizer-widget.h"
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#include "settings.h"
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#include "slot.h"
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using namespace WhiskerMenu;
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ResizerWidget::ResizerWidget(GtkWindow* window) :
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        m_window(window),
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        m_cursor(NULL),
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        m_shape(3)
 
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        m_shape(3),
 
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        m_supports_alpha(false)
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{
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        m_alignment = GTK_ALIGNMENT(gtk_alignment_new(1,0,0,0));
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        g_signal_connect_slot(m_drawing, "enter-notify-event", &ResizerWidget::on_enter_notify_event, this);
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        g_signal_connect_slot(m_drawing, "leave-notify-event", &ResizerWidget::on_leave_notify_event, this);
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        g_signal_connect_slot(m_drawing, "expose-event", &ResizerWidget::on_expose_event, this);
 
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        g_signal_connect_slot(m_window, "screen-changed", &ResizerWidget::on_screen_changed_event, this);
 
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        on_screen_changed_event(GTK_WIDGET(m_drawing), NULL);
 
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        set_corner(TopRight);
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}
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//-----------------------------------------------------------------------------
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void ResizerWidget::on_screen_changed_event(GtkWidget* widget, GdkScreen*)
 
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{
 
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        GdkScreen* screen = gtk_widget_get_screen(widget);
 
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        GdkColormap* colormap = gdk_screen_get_rgba_colormap(screen);
 
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        if (!colormap)
 
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        {
 
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                colormap = gdk_screen_get_system_colormap(screen);
 
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                m_supports_alpha = false;
 
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        }
 
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        else
 
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        {
 
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                m_supports_alpha = true;
 
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        }
 
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        gtk_widget_set_colormap(widget, colormap);
 
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}
 
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//-----------------------------------------------------------------------------
 
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gboolean ResizerWidget::on_expose_event(GtkWidget* widget, GdkEvent*)
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{
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        cairo_t* cr = gdk_cairo_create(gtk_widget_get_window(widget));
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        GtkStyle* style = gtk_widget_get_style(widget);
 
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        // Draw semi-transparent background to match window
 
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        if (m_supports_alpha)
 
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        {
 
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                const GdkColor& color = style->bg[GTK_STATE_NORMAL];
 
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                cairo_set_source_rgba(cr, color.red / 65535.0, color.green / 65535.0, color.blue / 65535.0, wm_settings->menu_opacity / 100.0);
 
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                cairo_set_operator(cr, CAIRO_OPERATOR_SOURCE);
 
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                cairo_paint(cr);
 
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        }
 
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        // Draw resize triangle
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        const GdkColor& color = style->text_aa[gtk_widget_get_state(widget)];
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        cairo_set_source_rgb(cr, color.red / 65535.0, color.green / 65535.0, color.blue / 65535.0);
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