GtkSourceView/GtkSourceBuffer-如何用红色标记一行并显示图标
我想用红色标记GtkSourceView中的一些文本,并显示一个图标。以下是我目前的尝试,但似乎毫无作用:GtkSourceView/GtkSourceBuffer-如何用红色标记一行并显示图标,c,gtk3,gtksourceview,C,Gtk3,Gtksourceview,我想用红色标记GtkSourceView中的一些文本,并显示一个图标。以下是我目前的尝试,但似乎毫无作用: void plainTextEditor_textView_addLineMarker(int lineNumber, linemarker* marker, context_base* context) { GtkWidget* plainTextEditor_textView = get_plainTextEditor_textView_from_notebook(contex
void plainTextEditor_textView_addLineMarker(int lineNumber, linemarker* marker, context_base* context)
{
GtkWidget* plainTextEditor_textView = get_plainTextEditor_textView_from_notebook(context->notebook);
GtkTextIter iter;
GtkTextBuffer * buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(plainTextEditor_textView) );
gtk_text_buffer_get_iter_at_line( buffer, &iter, lineNumber );
printf("extendedEditor_linebox_markError %i\n", lineNumber);
gtk_source_buffer_create_source_mark( GTK_SOURCE_BUFFER(buffer), marker->message, "dialog-error", &iter );
}
printf打印正确的行号
如果我调用该方法两次,gtk将打印一些gtk临界值:“Mark myMark已存在于缓冲区中”
但是,gtksourceview上没有任何可见的更改
也许我应该使用
gtk\u source\u mark\u属性
来更改特定类别的属性?但是怎么做呢?我找不到任何关于如何使用它的好信息。好的,我自己弄明白了。这里是一个将背景标记为红色并显示一个小错误对话框项的版本。如果鼠标悬停在项目上,将显示错误消息
//data which is needed in different methods
typedef struct
{
GtkSourceMarkAttributes* plainTextEditor_lineMarkers_warningAttributes;
GtkSourceMarkAttributes* plainTextEditor_lineMarkers_errorAttributes;
...
} context_base;
// things to do only once
int main(int argc, char *argv[])
{
...
GtkWidget * plainTextEditor_textView = gtk_source_view_new();
gtk_source_view_set_highlight_current_line (GTK_SOURCE_VIEW(plainTextEditor_textView),TRUE);
gtk_source_view_set_show_line_numbers (GTK_SOURCE_VIEW(plainTextEditor_textView),TRUE);
gtk_source_view_set_show_line_marks (GTK_SOURCE_VIEW(plainTextEditor_textView), TRUE);
context->plainTextEditor_lineMarkers_errorAttributes = gtk_source_mark_attributes_new();
gtk_source_mark_attributes_set_background(context->plainTextEditor_lineMarkers_errorAttributes, &error_color);
gtk_source_mark_attributes_set_icon_name(context->plainTextEditor_lineMarkers_errorAttributes,"dialog-error");
gtk_source_view_set_mark_attributes( GTK_SOURCE_VIEW(plainTextEditor_textView), sourceMarkCategory_error, context->plainTextEditor_lineMarkers_errorAttributes, 10);
...
}
// callback to display message when hovering on the linemarker
gchar* on_lineMarkerTooltip_displayed(GtkSourceMarkAttributes *attributes, GtkSourceMark *mark, linemarker* marker)
{
if( marker->message == NULL)
return NULL;
return strdup(marker->message);
}
// method to create new linemark
void plainTextEditor_textView_addLineMarker(int lineNumber, linemarker* marker, context_base* context)
{
if( context->plainTextEditor_lineMarkers[lineNumber-1]->message != NULL ) // there is a message on this line
{
if( strcmp(context->plainTextEditor_lineMarkers[lineNumber-1]->message, marker->message ) == 0 ) // its the same message, nothing to do
{
return;
}
}
GtkWidget* plainTextEditor_textView = get_plainTextEditor_textView_from_notebook(context->notebook);
GtkTextIter iter;
GtkTextBuffer * buffer = gtk_text_view_get_buffer( GTK_TEXT_VIEW(plainTextEditor_textView) );
gtk_text_buffer_get_iter_at_line( buffer, &iter, lineNumber );
context->plainTextEditor_lineMarkers[lineNumber-1]->message = strdup(marker->message);
char sourceMarkName[sourceMarkNameMaxDigits];
snprintf(sourceMarkName, sourceMarkNameMaxDigits, "%i", lineNumber);
gtk_source_view_set_mark_attributes (GTK_SOURCE_VIEW(plainTextEditor_textView),sourceMarkCategory_error,context->plainTextEditor_lineMarkers_errorAttributes,10);
gtk_source_buffer_create_source_mark( GTK_SOURCE_BUFFER(buffer), sourceMarkName, sourceMarkCategory_error, &iter );
g_signal_connect(G_OBJECT(context->plainTextEditor_lineMarkers_errorAttributes), "query-tooltip-text", G_CALLBACK(on_lineMarkerTooltip_displayed), context->plainTextEditor_lineMarkers[lineNumber-1]);
}