Draw text field theme for GtkViewsTextView.

src/platform/theme/theme_draw.cc

 // Copyright (c) 2009 The Chromium OS Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <algorithm>
 #include <cairo.h>
 #include <math.h>
 #include <gmodule.h>
 #include <gtk/gtk.h>
 #include <string.h>
@@ skipping 200 matching lines @@
 static const double TEXT_GRADIENT_G0 = static_cast<double>(0xC5) / 255.0;
 static const double TEXT_GRADIENT_B0 = static_cast<double>(0xC5) / 255.0;
 static const double TEXT_GRADIENT_R1 = 1;
 static const double TEXT_GRADIENT_G1 = 1;
 static const double TEXT_GRADIENT_B1 = 1;
 static const double TEXT_GRADIENT_R2 = 1;
 static const double TEXT_GRADIENT_G2 = 1;
 static const double TEXT_GRADIENT_B2 = 1;
 
 static const double TEXT_GRADIENT_STOP_0 = 0;
-static const double TEXT_GRADIENT_STOP_1 = .2;
+static const double TEXT_GRADIENT_STOP_1_PIXEL = 4;
 static const double TEXT_GRADIENT_STOP_2 = 1;
 
 static const double TREE_ITEM_BG_R = 1;
 static const double TREE_ITEM_BG_G = 1;
 static const double TREE_ITEM_BG_B = 1;
 
 static const double TREE_ITEM_SELECTED_BG_R = SELECTED_TEXT_BG_R;
 static const double TREE_ITEM_SELECTED_BG_G = SELECTED_TEXT_BG_G;
 static const double TREE_ITEM_SELECTED_BG_B = SELECTED_TEXT_BG_B;
 
@@ skipping 202 matching lines @@
     h -= 2;
   }
   cairo_translate(cr, x, y);
 
   int stroke_width = GTK_WIDGET_HAS_FOCUS(widget)
       ? FOCUSED_STROKE_WIDTH : STROKE_WIDTH;
   cairo_set_line_width(cr, stroke_width);
 
   AddRoundedRectPath(cr, w, h, stroke_width, BORDER_CORNER_RADIUS);
 
+  double text_gradient_stop_1 = h ? TEXT_GRADIENT_STOP_1_PIXEL / h : 0;
+
   ScopedPattern pattern(cairo_pattern_create_linear(0, 0, 0, h));
   cairo_pattern_add_color_stop_rgb(pattern.get(), TEXT_GRADIENT_STOP_0,
                                    TEXT_GRADIENT_R0, TEXT_GRADIENT_G0,
                                    TEXT_GRADIENT_B0);
-  cairo_pattern_add_color_stop_rgb(pattern.get(), TEXT_GRADIENT_STOP_1,
+  cairo_pattern_add_color_stop_rgb(pattern.get(), text_gradient_stop_1,
                                    TEXT_GRADIENT_R1, TEXT_GRADIENT_G1,
                                    TEXT_GRADIENT_B1);
   cairo_pattern_add_color_stop_rgb(pattern.get(), TEXT_GRADIENT_STOP_2,
                                    TEXT_GRADIENT_R2, TEXT_GRADIENT_G2,
                                    TEXT_GRADIENT_B2);
 
   cairo_set_source(cr, pattern.get());
   cairo_fill_preserve(cr);
 
   SetStrokeColor(cr, GTK_WIDGET_SENSITIVE(widget),
@@ skipping 688 matching lines @@
 static void DrawTextFieldBackground(GtkStyle* style,
                                     GdkWindow* window,
                                     GtkStateType state_type,
                                     GtkShadowType shadow_type,
                                     GdkRectangle* area,
                                     GtkWidget* widget,
                                     gint x,
                                     gint y,
                                     gint w,
                                     gint h) {
-  if (!gtk_entry_get_has_frame(GTK_ENTRY(widget)))
+  if (GTK_IS_ENTRY(widget) && !gtk_entry_get_has_frame(GTK_ENTRY(widget)))
     return;
 
   ScopedSurface cr(window, area);
   DrawTextBorder(cr.get(), widget, -(widget->allocation.width - w) / 2,
                  -(widget->allocation.height - h) / 2,
                  widget->allocation.width,
                  widget->allocation.height);
 }
 
 static void DrawTextFieldBorder(GtkStyle* style,
                                 GdkWindow* window,
                                 GtkStateType state_type,
                                 GtkShadowType shadow_type,
                                 GdkRectangle* area,
                                 GtkWidget* widget,
                                 gint x,
                                 gint y,
                                 gint w,
                                 gint h) {
-  if (!gtk_entry_get_has_frame(GTK_ENTRY(widget)))
+  if (GTK_IS_ENTRY(widget) && !gtk_entry_get_has_frame(GTK_ENTRY(widget)))
     return;
 
   ScopedSurface cr(window, area);
   DrawTextBorder(cr.get(), widget, x, y, w, h);
 }
 
 static void DrawTooltipBorder(GtkStyle* style,
                               GdkWindow* window,
                               GtkStateType state_type,
                               GtkShadowType shadow_type,
@@ skipping 216 matching lines @@
                       GdkWindow* window,
                       GtkStateType state_type,
                       GtkShadowType shadow_type,
                       GdkRectangle* area,
                       GtkWidget* widget,
                       const gchar* detail,
                       gint x,
                       gint y,
                       gint w,
                       gint h) {
-  if (GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry_bg")) {
+  if ((GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry_bg")) ||
+      (GTK_IS_TEXT_VIEW(widget) && detail && !strcmp(detail, "textview")))  {
     DrawTextFieldBackground(style, window, state_type, shadow_type, area,
                             widget, x, y, w, h);
   } else if (GTK_IS_WINDOW(widget) && detail && !strcmp(detail, "tooltip")) {
     // NOTE: the if checks GTK_IS_WINDOW as that is what GtkTooltip supplies to
     // this function.
 
     DrawTooltipBorder(style, window, state_type, shadow_type, area, widget,
                       x, y, w, h);
   } else if (GTK_IS_TREE_VIEW(widget)) {
     DrawTreeItemBackground(style, window, state_type, shadow_type, area, widget,
@@ skipping 54 matching lines @@
                      GdkWindow* window,
                      GtkStateType state_type,
                      GtkShadowType shadow_type,
                      GdkRectangle* area,
                      GtkWidget* widget,
                      const gchar* detail,
                      gint x,
                      gint y,
                      gint w,
                      gint h) {
-  if (GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry")) {
+  if ((GTK_IS_ENTRY(widget) && detail && !strcmp(detail, "entry")) ||
+      (GTK_IS_TEXT_VIEW(widget) && detail && !strcmp(detail, "textview"))) {
     DrawTextFieldBorder(style, window, state_type, shadow_type, area, widget, x,
                         y, w, h);
   } else if (GTK_IS_SCROLLED_WINDOW(widget) && detail &&
              !strcmp(detail, "scrolled_window")) {
     DrawScrollbarBorder(style, window, state_type, shadow_type, area, widget,
                         x, y, w, h);
   } else if (GTK_IS_VIEWPORT(widget) && detail &&
              !strcmp(detail, "viewport")) {
     DrawViewportBorder(style, window, state_type, shadow_type, area, widget, x,
                        y, w, h);
@@ skipping 26 matching lines @@
                     GtkStateType state_type,
                     GdkRectangle* area,
                     GtkWidget* widget,
                     const gchar* detail,
                     gint y1,
                     gint y2,
                     gint x) {
   // We currently don't have any vertical separators. If we do need them, be
   // sure and special case so that we don't draw the separator for comboboxs:
 }